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http://bg.zhengdapipe.com/uploads/202133181/small/en10219-pre-galvanzied-rectangular-pipe19072920177.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/en10219-pre-galvanzied-rectangular-pipe19072920177.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/en10219-pre-galvanzied-rectangular-pipe19074053930.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/en10219-pre-galvanzied-rectangular-pipe19074053930.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/small/en10219-pre-galvanzied-rectangular-pipe19074957392.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/en10219-pre-galvanzied-rectangular-pipe19074957392.jpg http://bg.zhengdapipe.com/square-and-rectanglar-steel-pipe/hot-dip-galvanzied-square-steel-pipe/en10219-gi-rectangular-steel-pipe.html EN10219 GI Rectangular Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/en10219-gi-rectangular-steel-pipe55517948009.jpg EN10219 GI Rectangular Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/en10219-gi-rectangular-steel-pipe55517948009.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/en10219-gi-rectangular-steel-pipe56230744398.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/en10219-gi-rectangular-steel-pipe56230744398.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/small/en10219-gi-rectangular-steel-pipe56232007974.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/en10219-gi-rectangular-steel-pipe56232007974.jpg 5 http://bg.zhengdapipe.com/uploads/202133181/small/en10219-gi-rectangular-steel-pipe56233257676.jpg 5 http://bg.zhengdapipe.com/uploads/202133181/en10219-gi-rectangular-steel-pipe56233257676.jpg http://bg.zhengdapipe.com/scaffolding/hot-dip-galvanzied-scaffolding/en-39-hot-dip-galvanzied-scaffolding.html EN 39 Hot Dip Galvanzied Scaffolding http://bg.zhengdapipe.com/uploads/202133181/small/en-39-hot-dip-galvanzied-scaffolding25120918896.jpg EN 39 Hot Dip Galvanzied Scaffolding http://bg.zhengdapipe.com/uploads/202133181/en-39-hot-dip-galvanzied-scaffolding25120918896.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/en-39-hot-dip-galvanzied-scaffolding25371795864.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/en-39-hot-dip-galvanzied-scaffolding25371795864.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/en-39-hot-dip-galvanzied-scaffolding25373358993.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/en-39-hot-dip-galvanzied-scaffolding25373358993.jpg http://bg.zhengdapipe.com/square-and-rectanglar-steel-pipe/pre-galvanzied-rectanglar-steel-pipe/astm-a500-pre-galvanzied-rectangular-pipe.html ASTM A500 Pre Galvanzied Rectangular Pipe http://bg.zhengdapipe.com/uploads/202133181/small/astm-a500-pre-galvanzied-rectangular-pipe14064094400.jpg ASTM A500 Pre Galvanzied Rectangular Pipe http://bg.zhengdapipe.com/uploads/202133181/astm-a500-pre-galvanzied-rectangular-pipe14064094400.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/astm-a500-pre-galvanzied-rectangular-pipe14352718494.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/astm-a500-pre-galvanzied-rectangular-pipe14352718494.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/astm-a500-pre-galvanzied-rectangular-pipe14353560383.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/astm-a500-pre-galvanzied-rectangular-pipe14353560383.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/small/astm-a500-pre-galvanzied-rectangular-pipe14354342313.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/astm-a500-pre-galvanzied-rectangular-pipe14354342313.jpg http://bg.zhengdapipe.com/round-steel-pipe/black-round-steel-pipe/astm-a53-black-steel-pipe.html ASTM A53 Black Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/astm-a53-black-steel-pipe25446525029.jpg ASTM A53 Black Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/astm-a53-black-steel-pipe25446525029.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/astm-a53-black-steel-pipe26104554722.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/astm-a53-black-steel-pipe26104554722.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/astm-a53-black-steel-pipe26105179385.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/astm-a53-black-steel-pipe26105179385.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/small/astm-a53-black-steel-pipe26105804766.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/astm-a53-black-steel-pipe26105804766.jpg http://bg.zhengdapipe.com/round-steel-pipe/black-round-steel-pipe/astm-795-black-steel-pipe.html ASTM 795 Black Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/astm-795-black-steel-pipe35396330408.jpg ASTM 795 Black Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/astm-795-black-steel-pipe35396330408.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/astm-795-black-steel-pipe35596491988.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/astm-795-black-steel-pipe35596491988.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/astm-795-black-steel-pipe35597116939.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/astm-795-black-steel-pipe35597116939.jpg http://bg.zhengdapipe.com/scaffolding/black-scaffolding/en-10219-scafolding.html EN 10219 Scafolding http://bg.zhengdapipe.com/uploads/202133181/small/en-10219-scafolding20376480050.jpg EN 10219 Scafolding http://bg.zhengdapipe.com/uploads/202133181/en-10219-scafolding20376480050.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/en-10219-scafolding21116476864.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/en-10219-scafolding21116476864.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/en-10219-scafolding21117899666.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/en-10219-scafolding21117899666.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/small/en-10219-scafolding21119143357.jpg 4 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http://bg.zhengdapipe.com/uploads/202133181/astm-795-galvanzied-steel-pipe55408833497.jpg 5 http://bg.zhengdapipe.com/uploads/202133181/small/astm-795-galvanzied-steel-pipe55409458445.jpg 5 http://bg.zhengdapipe.com/uploads/202133181/astm-795-galvanzied-steel-pipe55409458445.jpg http://bg.zhengdapipe.com/round-steel-pipe/black-round-steel-pipe/iso-65-black-steel-pipe.html ISO 65 Black Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-black-steel-pipe30274928647.jpg ISO 65 Black Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/iso-65-black-steel-pipe30274928647.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-black-steel-pipe30507648456.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/iso-65-black-steel-pipe30507648456.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-black-steel-pipe30508273392.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/iso-65-black-steel-pipe30508273392.jpg http://bg.zhengdapipe.com/round-steel-pipe/hot-dip-galvanzied-round-steel-pipe/iso-65-galvanzied-steel-pipe.html ISO 65 Galvanzied Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-galvanzied-steel-pipe51256928146.jpg ISO 65 Galvanzied Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/iso-65-galvanzied-steel-pipe51256928146.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-galvanzied-steel-pipe51547538081.jpg 2 http://bg.zhengdapipe.com/uploads/202133181/iso-65-galvanzied-steel-pipe51547538081.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-galvanzied-steel-pipe51548162965.jpg 3 http://bg.zhengdapipe.com/uploads/202133181/iso-65-galvanzied-steel-pipe51548162965.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/small/iso-65-galvanzied-steel-pipe51548787968.jpg 4 http://bg.zhengdapipe.com/uploads/202133181/iso-65-galvanzied-steel-pipe51548787968.jpg 5 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http://bg.zhengdapipe.com/round-steel-pipe/hot-dip-galvanzied-round-steel-pipe/hot-dipped-galvanized-steel-pipe.html Hot-dipped Galvanized Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/hot-dipped-galvanized-steel-pipe06172648331.jpg Hot-dipped Galvanized Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/hot-dipped-galvanized-steel-pipe06172648331.jpg Hot-dipped Galvanized Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/hot-dipped-galvanized-steel-pipe07464354322.jpg Hot-dipped Galvanized Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/hot-dipped-galvanized-steel-pipe07464354322.jpg Hot-dipped Galvanized Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/small/hot-dipped-galvanized-steel-pipe07488264966.jpg Hot-dipped Galvanized Steel Pipe http://bg.zhengdapipe.com/uploads/202133181/hot-dipped-galvanized-steel-pipe07488264966.jpg Hot-dipped Galvanized Steel Pipe 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http://bg.zhengdapipe.com/uploads/33181/info/n20240508094659b026d.jpg http://bg.zhengdapipe.com/info/how-to-transport-fluid-spiral-steel-pipes-how-96624193.html Как да транспортираме флуидни спирални стоманени тръби как да постигнем енергоспестяване http://bg.zhengdapipe.com/uploads/33181/info/n20240508094030b62fa.jpg http://bg.zhengdapipe.com/info/the-technical-characteristics-of-the-spiral-st-96624197.html Техническите характеристики на спиралната стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240508093605f1bae.jpg http://bg.zhengdapipe.com/info/why-does-the-steel-pipe-be-treated-with-heat-96624214.html Защо стоманената тръба се обработва с топлина http://bg.zhengdapipe.com/uploads/33181/info/n202405091102262ca4e.jpg http://bg.zhengdapipe.com/info/do-you-know-the-characteristics-of-plastic-ste-96624201.html Знаете ли характеристиките на пластмасовите стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n202405090928350fef3.jpg 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Въвеждане на антикорозионна стоманена тръба 3PE http://bg.zhengdapipe.com/uploads/33181/info/n20240510085122700bf.jpg http://bg.zhengdapipe.com/info/the-difference-between-hot-rolled-steel-pipe-96624204.html Разликата между горещо валцована стоманена тръба и студено валцована стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n202405100847123016e.jpg http://bg.zhengdapipe.com/info/the-processing-method-of-spiral-tube-surface-d-96624211.html Методът на обработка на повърхностното обезвъглеродяване на спиралната тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240510084246235d1.jpg http://bg.zhengdapipe.com/info/welding-process-of-galvanized-steel-pipe-96624209.html Процес на заваряване на поцинкована стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n202405100838508d2d0.jpg http://bg.zhengdapipe.com/info/what-are-the-surface-requirements-of-the-spira-96624207.html Какви са повърхностните изисквания на спираловидната стоманена тръба Какви са повърхностните 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Какъв е начинът да се направи антикорозия на стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20240513083733ed62e.jpg http://bg.zhengdapipe.com/info/what-are-the-advantages-of-3pe-anticorrosive-s-96624219.html Какви са предимствата на 3PE антикорозионна стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024051308275979f24.jpg http://bg.zhengdapipe.com/info/causes-of-anticorrosive-steel-pipes-have-good-96624237.html Причините за антикорозионни стоманени тръби имат добри антикорозионни свойства http://bg.zhengdapipe.com/uploads/33181/info/n20240514151250b80ec.jpg http://bg.zhengdapipe.com/info/check-what-processes-of-coating-steel-pipes-96624225.html Вижте какви са процесите на покриване на стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240514145059fe123.jpg http://bg.zhengdapipe.com/info/steel-number-identification-method-of-large-d-96624229.html Метод за идентифициране на стоманен номер на спирална тръба с голям диаметър http://bg.zhengdapipe.com/uploads/33181/info/n20240514144622ec6bc.jpg http://bg.zhengdapipe.com/info/what-are-the-advantages-and-disadvantages-of-s-96624227.html Какви са предимствата и недостатъците на спиралните стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202405141441475d3ab.jpg http://bg.zhengdapipe.com/info/welding-operation-of-spiral-steel-pipes-96624223.html Заваряване на спирални стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202405141435091d1cb.jpg http://bg.zhengdapipe.com/info/spiral-surface-treatment-method-and-installati-96624251.html Метод на спирална повърхностна обработка и монтаж http://bg.zhengdapipe.com/uploads/33181/info/n20240515095609750ec.jpg http://bg.zhengdapipe.com/info/requirements-for-the-thickness-of-the-zinc-lay-96624233.html Изисквания към дебелината на цинковия слой на горещо поцинкованото покритие http://bg.zhengdapipe.com/uploads/33181/info/n2024051509514203fd9.jpg http://bg.zhengdapipe.com/info/comparison-of-technical-characteristics-of-spi-96624230.html Сравнение на техническите характеристики на спираловидно заварени тръби и прави заварени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240515094632825ba.jpg http://bg.zhengdapipe.com/info/treatment-of-spiral-steel-pipes-should-avoid-t-96624231.html Третирането на спирални стоманени тръби трябва да избягва тези дефекти http://bg.zhengdapipe.com/uploads/33181/info/n2024051509421055652.jpg http://bg.zhengdapipe.com/info/three-ways-to-connect-to-spiral-steel-pipes-96624226.html Три начина за свързване към спирални стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240515093615fab5a.jpg http://bg.zhengdapipe.com/info/introduction-to-the-difference-between-ordinar-96624240.html Запознаване с разликата между обикновените стоманени тръби и спиралните тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240516093832cbe83.jpg 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Метод за измерване на дължината на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n20240520093019b4f80.jpg http://bg.zhengdapipe.com/info/the-production-process-of-straight-seam-steel-96624245.html Процесът на производство на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n202405200918165d2bb.jpg http://bg.zhengdapipe.com/info/some-technical-requirements-of-galvanized-pipe-96624268.html Някои технически изисквания към поцинкованите тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240521102821b9358.jpg http://bg.zhengdapipe.com/info/introduction-to-the-production-measures-of-thi-96624272.html Въведение в производствените мерки на дебелостенни спирални тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024052110193668857.jpg http://bg.zhengdapipe.com/info/three-ways-of-spiral-steel-pipe-connection-int-96624297.html Три начина за въвеждане на свързване на спирална стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024052110154958183.jpg http://bg.zhengdapipe.com/info/what-factors-will-affect-the-quality-of-large-96624256.html Какви фактори ще повлияят на качеството на спирални стоманени тръби с голям диаметър http://bg.zhengdapipe.com/uploads/33181/info/n2024052110112321dc6.jpg http://bg.zhengdapipe.com/info/standard-and-acceptance-of-spiral-tubes-96624247.html Стандарт и приемане на спирални тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240521100238ba069.jpg http://bg.zhengdapipe.com/info/how-to-detect-plastic-steel-pipes-96624292.html Как да открием пластмасови стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202405220858283d318.jpg http://bg.zhengdapipe.com/info/reason-for-the-excessive-difference-of-spiral-96624281.html Причина за прекомерната разлика на тръбата за валцоване на спирално дъгова заварена тръба http://bg.zhengdapipe.com/uploads/33181/info/n202405220849599104d.jpg http://bg.zhengdapipe.com/info/steel-shear-is-commonly-used-96624255.html Обикновено се използва стоманена ножица http://bg.zhengdapipe.com/uploads/33181/info/n20240522084518ee1db.jpg http://bg.zhengdapipe.com/info/how-to-solve-the-problem-of-wrong-edges-of-the-96624267.html Как да решим проблема с неправилните ръбове на спиралната тръба http://bg.zhengdapipe.com/uploads/33181/info/n202405220841019161c.jpg http://bg.zhengdapipe.com/info/insulation-of-steel-pipe-execution-standards-96624298.html Стандарти за изпълнение на изолация на стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024052208362347a44.jpg http://bg.zhengdapipe.com/info/commonly-used-welded-pipe-specifications-96624259.html Често използвани спецификации на заварени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202405231513463cff6.jpg http://bg.zhengdapipe.com/info/introduction-to-welding-skills-of-galvanized-s-96624280.html Въведение в уменията за заваряване на поцинковани стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240523150922c458f.jpg http://bg.zhengdapipe.com/info/advantages-of-hot-dip-galvanized-steel-pipes-96624260.html Предимства на горещо поцинкованите стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240523150050306a2.jpg http://bg.zhengdapipe.com/info/the-storage-of-hot-dip-galvanized-steel-pipes-96624257.html Съхранение на горещо поцинковани стоманени тръби през дъждовните сезони http://bg.zhengdapipe.com/uploads/33181/info/n202405231456446fb9e.jpg http://bg.zhengdapipe.com/info/do-you-know-the-welding-defect-detection-techn-96624258.html Знаете ли технологията за откриване на дефекти при заваряване на спиралната тръба? http://bg.zhengdapipe.com/uploads/33181/info/n20240523145248d406d.jpg http://bg.zhengdapipe.com/info/briefly-describe-the-weight-coefficient-of-gal-96624262.html Опишете накратко коефициента на тегло на поцинкована стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024052409312834005.jpg http://bg.zhengdapipe.com/info/dalgen-plating-six-elements-of-galvanized-pipe-96624264.html Dalgen обшивка шест елемента от поцинковани тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240524092647e9fd2.jpg http://bg.zhengdapipe.com/info/ten-points-of-the-heat-treatment-of-galvanized-96624274.html Десет точки от термичната обработка на поцинковани тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240524092212b4e5e.jpg http://bg.zhengdapipe.com/info/spiral-welding-steel-pipe-96624265.html Спирално заваряване на стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024052409095514ef1.jpg http://bg.zhengdapipe.com/info/common-spiral-tube-cutting-method-96624269.html Общ метод за рязане на спирални тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024052409044515746.jpg http://bg.zhengdapipe.com/info/classification-of-roller-molding-method-of-str-96624285.html Класификация на метода за валцоване на заварени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n2024052610195522a4b.png http://bg.zhengdapipe.com/info/different-types-of-straight-steel-pipe-product-96624270.html Производство на различни видове прави стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240526101534c4654.jpg http://bg.zhengdapipe.com/info/the-production-and-three-categories-of-welded-96624282.html Производство и три категории заварени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202405261011559756f.jpg http://bg.zhengdapipe.com/info/the-cause-of-the-hot-dip-galvanized-pipe-of-t-96624266.html Причината за пожара е горещо поцинкована тръба http://bg.zhengdapipe.com/uploads/33181/info/n202405261008275a9f6.jpg http://bg.zhengdapipe.com/info/how-to-control-the-welding-quality-of-galvaniz-96624261.html Как да контролираме качеството на заваряване на поцинковани стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202405261001424fdf5.jpg http://bg.zhengdapipe.com/info/dalvation-steel-pipe-heating-furnace-heating-o-96624276.html Dalvation стоманена тръба отопление пещ отопление окисление дефект и контрол http://bg.zhengdapipe.com/uploads/33181/info/n20240527153152b4aef.jpg http://bg.zhengdapipe.com/info/what-should-i-pay-attention-to-when-the-constr-96624287.html На какво трябва да обърна внимание, когато трябва да се обърне внимание на строителното заваряване на поцинковани тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024052715270777ee5.jpg http://bg.zhengdapipe.com/info/welding-technology-used-in-straight-seam-weldi-96624275.html Технология на заваряване, използвана при заваряване на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n202405271454003b037.jpg http://bg.zhengdapipe.com/info/the-method-of-direct-sewing-steel-pipe-treats-96624271.html Методът на директно зашиване на стоманена тръба третира термична обработка http://bg.zhengdapipe.com/uploads/33181/info/n202405271438256fa86.jpg http://bg.zhengdapipe.com/info/the-pre-welding-quality-and-welding-essential-96624284.html Качеството преди заваряване и най-важното за заваряване на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n2024052714331665301.jpg http://bg.zhengdapipe.com/info/how-to-prevent-straight-seam-steel-pipe-fractu-96624279.html Как да предотвратите счупване на стоманена тръба с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n2024052809162325f81.jpg http://bg.zhengdapipe.com/info/the-characteristics-and-inspection-of-plastic-96624291.html Характеристики и проверка на пластмасови стоманени тръби отвътре и отвън http://bg.zhengdapipe.com/uploads/33181/info/n2024052809075133ead.jpg http://bg.zhengdapipe.com/info/why-is-the-large-diameter-tube-bending-96624277.html Защо тръбата с голям диаметър се огъва http://bg.zhengdapipe.com/uploads/33181/info/n2024052809021541c67.jpg http://bg.zhengdapipe.com/info/spiral-tube-requirements-for-steel-pipe-surfac-96624283.html Изисквания за спирална тръба за изисквания за повърхност на стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240528085628fe07c.jpg http://bg.zhengdapipe.com/info/production-introduction-of-thick-wall-spiral-t-96624273.html Въвеждане в производството на дебелостенни спирални тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240528085217ef3d7.jpg http://bg.zhengdapipe.com/info/production-process-of-spiral-steel-pipes-96624304.html Производствен процес на спирални стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240529094818c8627.jpg http://bg.zhengdapipe.com/info/introduction-of-the-advantages-and-disadvantag-96624290.html Представяне на предимствата и недостатъците на спиралните стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240529093906cfba0.jpg http://bg.zhengdapipe.com/info/how-to-improve-the-service-life-of-spiral-stee-96624278.html Как да подобрим експлоатационния живот на спиралните стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240529093252ae8be.jpg http://bg.zhengdapipe.com/info/briefly-describe-the-molding-process-of-straig-96624288.html Опишете накратко процеса на формоване на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n20240529092001d2663.jpg http://bg.zhengdapipe.com/info/what-should-i-pay-attention-to-when-the-spiral-96624286.html На какво трябва да обърна внимание, когато трябва да се използва спираловидната стоманена тръба? http://bg.zhengdapipe.com/uploads/33181/info/n20240529091139bfad2.jpg http://bg.zhengdapipe.com/info/manufacturing-process-of-straight-seam-steel-p-96624308.html Производствен процес на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n20240530102834ca03b.jpg http://bg.zhengdapipe.com/info/the-shortcomings-that-are-prone-to-hot-rolled-96624315.html Недостатъците, които са склонни към горещо валцувани стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024053010221891301.jpg http://bg.zhengdapipe.com/info/common-high-frequency-straight-seam-steel-pip-96624307.html Обичайни високочестотни процеси на производство на стоманени тръби с прав шев и електродъгово заваряване с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n20240530101637e348c.jpg http://bg.zhengdapipe.com/info/introduction-to-the-production-process-of-pile-96624294.html Въведение в производствения процес на стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n2024053009581540929.jpg http://bg.zhengdapipe.com/info/what-should-i-pay-attention-to-when-purchasing-96624293.html На какво трябва да обърна внимание при закупуване на стоманена тръба с голям калибър http://bg.zhengdapipe.com/uploads/33181/info/n20240530094854bad75.png http://bg.zhengdapipe.com/info/affect-the-quality-factors-of-large-diameter-96624299.html Влияят на качествените фактори на спирални стоманени тръби с голям диаметър http://bg.zhengdapipe.com/uploads/33181/info/n20240531114743c416f.jpg http://bg.zhengdapipe.com/info/what-welding-defects-are-more-common-in-spiral-96624314.html Какви заваръчни дефекти са по-често срещани при спирални стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024053111395868bec.jpg http://bg.zhengdapipe.com/info/measures-to-improve-the-thickness-accuracy-of-96624311.html Мерки за подобряване на точността на дебелината на стената на стоманената тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240531113211ca0a6.jpg http://bg.zhengdapipe.com/info/what-factors-will-cause-uneven-thin-steel-pipe-96624289.html Какви фактори ще причинят неравномерни тънки стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n2024053111275039b35.jpg http://bg.zhengdapipe.com/info/what-are-the-places-to-pay-attention-to-using-96624295.html Кои са местата, на които трябва да обърнете внимание при използването на спираловидна стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240531111738203d7.jpg http://bg.zhengdapipe.com/info/the-characteristics-of-the-design-of-the-steel-96624302.html Характеристиките на дизайна на конструкцията на стоманената тръба на права стоманена тръба стоманена конструкция http://bg.zhengdapipe.com/uploads/33181/info/n2024060208564677291.jpg http://bg.zhengdapipe.com/info/3pe-anticorrosive-tube-advantage-introduction-96624301.html 3PE антикорозионна тръба въвеждане на предимство http://bg.zhengdapipe.com/uploads/33181/info/n202406020852281395b.jpg http://bg.zhengdapipe.com/info/the-difference-between-hot-rolled-steel-pipe-96624296.html Разликата между горещо валцована стоманена тръба и студено валцована стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024060208483355905.jpg http://bg.zhengdapipe.com/info/the-processing-method-of-spiral-tube-surface-d-96624306.html Методът на обработка на повърхностното обезвъглеродяване на спиралната тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024060208444513ab4.jpg http://bg.zhengdapipe.com/info/introduction-to-the-quality-detection-method-o-96624300.html Въведение в метода за откриване на качеството на спирална стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024060208380211ebd.jpg http://bg.zhengdapipe.com/info/the-impact-of-different-metal-elements-in-the-96624305.html Въздействието на различни метални елементи при производството на спираловидни тръби http://bg.zhengdapipe.com/uploads/33181/info/n202406030902434a379.jpg http://bg.zhengdapipe.com/info/reason-and-cutting-method-of-straight-seam-ste-96624313.html Причина и метод на рязане на шлака от стоманени тръби с прав шев http://bg.zhengdapipe.com/uploads/33181/info/n2024060308562112199.jpg http://bg.zhengdapipe.com/info/classification-and-production-process-of-hot-96624312.html Класификация и производствен процес на горещо поцинковани тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240603085008014b7.jpg http://bg.zhengdapipe.com/info/what-areas-can-the-seamless-pipe-be-applied-to-96624309.html В какви области може да се прилага безшевната тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240603084515b91b0.jpg http://bg.zhengdapipe.com/info/how-to-avoid-wear-on-the-spiral-steel-pipe-96624303.html Как да избегнем износването на спиралната стоманена тръба? http://bg.zhengdapipe.com/uploads/33181/info/n2024060308371621ec3.jpg http://bg.zhengdapipe.com/info/production-introduction-of-thick-wall-spiral-t-96885808.html Въвеждане в производството на дебелостенни спираловидни тръби http://bg.zhengdapipe.com/uploads/33181/info/n202406140935400722c.jpg http://bg.zhengdapipe.com/info/what-will-affect-the-accuracy-of-the-pipeline-96885794.html Какво ще повлияе на точността на изтичането на тръбопровода на цялата тръба на заварената тръба http://bg.zhengdapipe.com/uploads/33181/info/n2024060509084543fa9.jpg 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стоманена тръба с малък диаметър http://bg.zhengdapipe.com/uploads/33181/info/n20240606101354a4e15.jpg http://bg.zhengdapipe.com/info/steel-number-identification-method-of-large-d-96885780.html Метод за идентифициране на стоманен номер на спирална тръба с голям диаметър http://bg.zhengdapipe.com/uploads/33181/info/n202406061009107840f.jpg http://bg.zhengdapipe.com/info/weld-quality-judgment-of-the-spiral-tube-96885775.html Преценка на качеството на заварката на спиралната тръба http://bg.zhengdapipe.com/uploads/33181/info/n20240606094228445e7.jpg http://bg.zhengdapipe.com/info/the-connection-method-of-three-spiral-steel-pi-96885791.html Методът на свързване на три спирални стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n20240606093725fd09e.jpg http://bg.zhengdapipe.com/info/steel-shear-is-commonly-used-96887415.html Обикновено се използва стоманена ножица http://bg.zhengdapipe.com/uploads/33181/info/n20240606090226af517.jpg 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Какви са корозионните продукти? http://bg.zhengdapipe.com/uploads/33181/info/n202410230822417e676.jpg http://bg.zhengdapipe.com/info/how-does-the-zinc-coating-corrode-in-oilfields-102188037.html Как корозира цинковото покритие в нефтените находища? http://bg.zhengdapipe.com/uploads/33181/info/n20241024090522997a6.jpg http://bg.zhengdapipe.com/info/how-does-the-zinc-layer-corrode-on-buildings-102188035.html Как цинковият слой корозира върху сгради? http://bg.zhengdapipe.com/uploads/33181/info/n202410240839487259f.jpg http://bg.zhengdapipe.com/info/how-does-the-zinc-layer-corrode-in-soil-102188028.html Как цинковият слой корозира в почвата? http://bg.zhengdapipe.com/uploads/33181/info/n202410240836592ba18.jpg http://bg.zhengdapipe.com/info/how-does-the-zinc-layer-corrode-in-seawater-102188027.html Как цинковият слой корозира в морска вода? http://bg.zhengdapipe.com/uploads/33181/info/n2024102408340833060.jpg http://bg.zhengdapipe.com/info/what-are-the-optimal-temperature-and-concentra-102188038.html Какви са оптималните температура и концентрация за киселинно ецване? http://bg.zhengdapipe.com/uploads/33181/info/n2024102508534583630.jpg http://bg.zhengdapipe.com/info/why-is-acid-pickling-necessary-for-steel-tube-102188036.html Защо е необходимо киселинно ецване за заготовки от стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241025085058d8b9f.jpg http://bg.zhengdapipe.com/info/what-are-the-factors-that-affect-the-lifespan-102188049.html Какви са факторите, които влияят върху продължителността на живота на горещо поцинкованите цинкови покрития и какъв е общият диапазон? http://bg.zhengdapipe.com/uploads/33181/info/n2024102508283746277.jpg http://bg.zhengdapipe.com/info/how-does-zinc-coating-provide-corrosion-protec-102188044.html Как цинковото покритие осигурява защита от корозия? http://bg.zhengdapipe.com/uploads/33181/info/n20241025082304f7e0c.jpg http://bg.zhengdapipe.com/info/what-are-the-main-factors-determining-the-corr-102188048.html Кои са основните фактори, определящи скоростта на корозия на цинковите покрития? http://bg.zhengdapipe.com/uploads/33181/info/n202410250815559e776.jpg http://bg.zhengdapipe.com/info/why-does-the-corrosion-of-the-zinc-coating-ini-102188034.html Защо корозията на цинковото покритие първоначално настъпва по-бързо, отколкото по-късно? http://bg.zhengdapipe.com/uploads/33181/info/n20241025081508389f4.jpg http://bg.zhengdapipe.com/info/what-quality-defects-are-prone-to-occur-during-102265443.html Какви качествени дефекти са склонни да се появят по време на процеса на мариноване и как могат да бъдат избегнати? http://bg.zhengdapipe.com/uploads/33181/info/n20241026154030b85c3.jpg http://bg.zhengdapipe.com/info/why-are-steel-pipes-sometimes-soaked-in-hot-wa-102265444.html Защо стоманените тръби понякога се накисват в гореща вода преди ецване при някои операции? http://bg.zhengdapipe.com/uploads/33181/info/n20241026153000417a7.jpg http://bg.zhengdapipe.com/info/the-internal-and-external-factors-affecting-th-102265442.html Вътрешните и външните фактори, влияещи върху ецването на стоманени тръби, могат да бъдат разделени главно на http://bg.zhengdapipe.com/uploads/33181/info/n2024102615273131bfd.jpg http://bg.zhengdapipe.com/info/what-is-the-impact-of-the-content-of-ferric-ch-102265440.html Какво е въздействието на съдържанието на железен хлорид (и железен хлорид) в разтвора за ецване със солна киселина върху процеса на ецване? http://bg.zhengdapipe.com/uploads/33181/info/n2024102615213948bc5.jpg http://bg.zhengdapipe.com/info/what-are-the-advantages-and-disadvantages-of-p-102265441.html Какви са предимствата и недостатъците на ецването на стоманени тръби в солна киселина? Предимства: http://bg.zhengdapipe.com/uploads/33181/info/n20241026151928591c2.jpg http://bg.zhengdapipe.com/info/heating-method-for-pickling-solution-steam-n-102265455.html Метод на нагряване за разтвор за ецване - Метод на нагряване с парна дюза http://bg.zhengdapipe.com/uploads/33181/info/n202410271503570af6c.jpg http://bg.zhengdapipe.com/info/heating-method-for-pickling-solution-direct-102265448.html Метод на нагряване за разтвор за ецване - Метод на директно нагряване с пара http://bg.zhengdapipe.com/uploads/33181/info/n202410271501386728f.jpg http://bg.zhengdapipe.com/info/what-are-the-heating-methods-for-pickling-solu-102265445.html Какви са методите за нагряване на ецващи разтвори и какви са техните предимства и недостатъци? http://bg.zhengdapipe.com/uploads/33181/info/n20241027145909c3f4e.jpg http://bg.zhengdapipe.com/info/why-are-there-obvious-clusters-of-corrosion-pi-102265446.html Защо има очевидни групи от корозионни ями по повърхността на заварени стоманени тръби след прекомерно ецване? http://bg.zhengdapipe.com/uploads/33181/info/n202410271452339caa3.jpg http://bg.zhengdapipe.com/info/what-is-acid-embrittlement-or-hydrogen-embrit-102265449.html Какво е киселинна крехкост (или водородна крехкост) и как възниква? https://img01.v15cdn.com/gallery/4x3/289.webp http://bg.zhengdapipe.com/info/heating-method-for-pickling-solution-hot-wat-102265451.html Метод на нагряване за разтвор за ецване - метод с гореща вода с нагревателна тръба http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/direct-heating-with-hot-exhaust-gas-102265450.html Метод на нагряване за разтвор за ецване - Директно нагряване с горещ отработен газ http://bg.zhengdapipe.com/uploads/33181/info/n20241028082755870ff.jpg http://bg.zhengdapipe.com/info/heating-method-for-pickling-solution-immersi-102265465.html Отопление Метод За Мариноване Разтвор - Потапяне Пламък Нагряване Метод http://bg.zhengdapipe.com/uploads/33181/info/n20241028082542cea08.jpg http://bg.zhengdapipe.com/info/heating-method-for-pickling-solution-electri-102265463.html Отопление Метод За Ецване Разтвор - Електричество Отопление Елемент Метод http://bg.zhengdapipe.com/uploads/33181/info/n2024102808233408dc7.jpg http://bg.zhengdapipe.com/info/heating-method-for-pickling-solution-steam-h-102265447.html Метод на нагряване за разтвор за ецване - Метод на нагряване на тръба с парно отопление http://bg.zhengdapipe.com/uploads/33181/info/n2024102808211103f78.jpg http://bg.zhengdapipe.com/info/why-must-steel-pipes-be-rinsed-immediately-aft-102265454.html Защо стоманените тръби трябва да се изплакват веднага след ецване? http://bg.zhengdapipe.com/uploads/33181/info/n2024102909335386780.jpg http://bg.zhengdapipe.com/info/why-is-it-necessary-to-lift-and-lower-steel-pi-102265452.html Защо е необходимо стоманените тръби да се повдигат и спускат няколко пъти по време на пакетното ецване? http://bg.zhengdapipe.com/uploads/33181/info/n202410290930235d2aa.jpg http://bg.zhengdapipe.com/info/why-is-it-beneficial-to-oscillate-steel-pipes-102265453.html Защо е полезно да се осцилират стоманени тръби или да се създаде поток от разтвор по време на ецване? https://img01.v15cdn.com/gallery/4x3/209.webp http://bg.zhengdapipe.com/info/why-is-the-multi-tank-pickling-method-consider-102265795.html Защо се счита, че методът за ецване с много резервоари има повече предимства от метода с един резервоар за ецване на стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n2024102909244302066.jpg http://bg.zhengdapipe.com/info/why-is-direct-steam-heating-commonly-used-for-102265796.html Защо директното нагряване с пара обикновено се използва за разтвори за ецване? Какви са неговите предимства и недостатъци? http://bg.zhengdapipe.com/uploads/33181/info/n202410290922005dc27.jpg http://bg.zhengdapipe.com/info/what-are-the-main-components-of-dry-process-so-102383745.html Кои са основните компоненти на разтворителите по сух процес? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-main-components-of-wet-process-fl-102383740.html Кои са основните компоненти на потока за мокър процес? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-solvent-method-and-what-is-the-pu-102383743.html Какъв е методът на разтворителя и каква е целта на използването на разтворител? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-purpose-of-cleaning-102383738.html Каква е целта на почистването? http://bg.zhengdapipe.com/uploads/33181/info/n202410300847129c427.jpg http://bg.zhengdapipe.com/info/what-aspects-should-be-self-checked-during-the-102383737.html Какви аспекти трябва да се проверяват самостоятелно по време на процеса на киселинно ецване? http://bg.zhengdapipe.com/uploads/33181/info/n2024103008441657b38.jpg http://bg.zhengdapipe.com/info/operating-method-for-drying-chain-conveyor-m-102383742.html Работен метод за сушене - метод на верижен конвейер http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/operating-method-for-drying-rolling-steel-pi-102383744.html Работен метод за сушене - метод на валцована стоманена тръба http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-impacts-of-excessively-long-dryin-102383739.html Какви са въздействията на прекалено дългото време за сушене на стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-problems-can-arise-if-steel-pipes-are-not-102383746.html Какви проблеми могат да възникнат, ако стоманените тръби не са напълно изсушени? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-determines-the-drying-temperature-102383741.html Какво определя температурата на сушене? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-impact-of-iron-in-molten-zinc-on-h-102518049.html Какво е влиянието на желязото в стопения цинк върху горещото поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-impact-of-lead-in-molten-zinc-on-h-102518068.html Какво е въздействието на оловото в стопения цинк върху горещото поцинковане? Защо оловото се използва като облицовка на дъното на съдовете за поцинковане? https://img01.v15cdn.com/gallery/4x3/179.webp http://bg.zhengdapipe.com/info/what-are-the-sources-of-alloy-components-in-th-102518056.html Какви са източниците на сплавни компоненти в съда за поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n2024110115291320d08.jpg http://bg.zhengdapipe.com/info/what-factors-influence-the-normal-microstructu-102518050.html Какви фактори влияят върху нормалната микроструктура на галванизираните цинкови покрития? http://bg.zhengdapipe.com/uploads/33181/info/n2024110115263571a4b.jpg http://bg.zhengdapipe.com/info/how-is-zinc-securely-plated-onto-steel-102518046.html Как цинкът се нанася сигурно върху стомана? http://bg.zhengdapipe.com/uploads/33181/info/n202411011524262d9fd.jpg http://bg.zhengdapipe.com/info/how-is-zinc-ash-formed-and-what-are-its-compo-102518053.html Как се образува цинковата пепел и какви са нейните компоненти? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-impact-of-nickel-content-in-steel-102518051.html Какво е въздействието на съдържанието на никел в стоманените тръби и матриците на съдовете за поцинковане върху горещото поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-impact-of-magnesium-in-molten-zinc-102518069.html Какво е влиянието на магнезия в стопения цинк върху горещото поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/how-do-aluminum-containing-and-aluminum-free-z-102518048.html Как се различават съдържащите алуминий и несъдържащите алуминий цинкови вани по отношение на корозионния си ефект върху желязото? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-the-impact-of-aluminum-in-molten-zinc-102518054.html Какво е въздействието на алуминия в стопения цинк върху горещото поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n2024110316442865724.jpg http://bg.zhengdapipe.com/info/what-are-the-factors-that-influence-the-growth-102518064.html Кои са факторите, които влияят върху скоростта на растеж на цинковата пепел? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-impact-does-the-quality-of-zinc-aluminum-102518058.html Какво влияние оказва качеството на цинково-алуминиевата сплав върху поцинкования слой? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-pros-and-cons-of-adding-lead-to-z-102518057.html Какви са предимствата и недостатъците на добавянето на олово към цинковата течност? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-should-the-steel-pipe-be-inclined-at-an-an-102518055.html Защо стоманената тръба трябва да бъде наклонена под ъгъл, когато влиза в цинковата вана за потапяне и поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/under-what-conditions-is-zinc-dross-formed-wh-102518072.html При какви условия се образува цинкова шлака? Какви са неговите компоненти? Какви са неговите свойства? http://bg.zhengdapipe.com/uploads/33181/info/n20241104082316b2f78.jpg http://bg.zhengdapipe.com/info/why-is-the-product-quality-of-dry-process-hot-102518059.html Защо качеството на продукта при горещо поцинковане по сух процес е по-добро от това при мокрия процес? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-are-there-more-missed-galvanizing-spots-in-102518061.html Защо има повече пропуснати петна от поцинковане вътре и в краищата на поцинкованите стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-aluminum-not-added-to-the-zinc-bath-in-102518063.html Защо алуминият не се добавя към цинковата вана при мокър процес на горещо поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-do-missed-plating-spots-and-zinc-particles-102518071.html Защо лесно се появяват пропуснати петна от покритие и цинкови частици при поцинковане на стоманени тръби в съдържаща алуминий цинкова течност, особено по време на началните етапи на производство? Как да решим този проблем? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-methods-can-be-used-to-slow-down-the-prod-102518318.html Какви методи могат да се използват за забавяне на производството на цинкова пепел? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-there-more-zinc-ash-on-the-molten-zinc-102518067.html Защо има повече цинкова пепел върху разтопената цинкова повърхност в края на стоманените тръби по време на горещо поцинковане в сравнение с всяко друго място? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-methods-can-be-used-to-reduce-the-product-102518065.html Какви методи могат да се използват за намаляване на производството на цинкова пепел? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-are-there-generally-no-zinc-flowers-on-gal-102518066.html Защо по принцип няма цинкови цветя на поцинкованите стоманени тръби, а са често срещани на поцинкованата ламарина? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-are-zinc-ingots-always-added-directly-from-102518062.html Защо цинковите слитъци винаги се добавят директно от двата края на съда за поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-do-the-zinc-flowers-differ-on-thin-walled-102518060.html Защо цинковите цветя се различават при тънкостенни и дебелостенни тръби при еднакъв процес и работни условия? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-impact-does-zinc-dross-have-on-the-galvan-17113571316802560.html Какво влияние има цинковата шлака върху поцинкования слой на поцинкованите стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/how-is-zinc-dross-formed-and-what-are-its-com-17113629909148672.html Как се образува цинковата шлака и какви са нейните компоненти? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-zinc-dross-17113629827195904.html Какво е цинкова шлака? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-harmful-effects-of-zinc-ash-on-ho-17113558242665472.html Какви са вредните ефекти на цинковата пепел върху горещото поцинковане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-pros-and-cons-of-frequently-skimm-17113571368592384.html Какви са предимствата и недостатъците на честото обезмасляване на цинкова пепел? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-it-necessary-to-significantly-increase-17113600606184448.html Защо е необходимо да се увеличи значително газовият поток в началото на външното бластиране и почистване на цинка? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-it-preferable-to-use-superheated-steam-17113688584168448.html Защо е за предпочитане да се използва прегрята пара за вътрешно бластиране и почистване на цинк? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-it-necessary-to-perform-internal-and-ex-17113571329975296.html Защо е необходимо да се извърши вътрешно и външно бластиране и почистване на поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-impact-does-pretreatment-before-galvanizi-17113658990814208.html Какво влияние оказва предварителната обработка преди поцинковане върху адхезията на поцинкования слой? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-impact-does-the-temperature-of-molten-zin-17113600614179840.html Какво влияние оказва температурата на стопения цинк върху цинковата шлака? При какво съдържание на желязо в стопения цинк не трябва повече да се използва? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/how-to-cool-galvanized-steel-pipes-17113558262735872.html Как да охладите поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-water-cooling-necessary-for-galvanized-17113776590218240.html Защо е необходимо водно охлаждане за поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-it-preferable-to-use-lightweight-alumin-17113600598991872.html Защо е за предпочитане да се използват направляващи ролки от леки алуминиеви сплави за транспортиране на поцинковани стоманени тръби върху охлаждащото легло след външно бластиране и почистване на цинк? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-parameters-determine-the-air-cooling-dura-17113776410059776.html Какви параметри определят продължителността на въздушно охлаждане на поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-air-cooling-necessary-after-the-interna-17113629840811008.html Защо е необходимо въздушно охлаждане след вътрешната и външната бластиране на поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-do-galvanized-steel-pipes-sometimes-develo-17113600604791808.html Защо поцинкованите стоманени тръби понякога развиват видими пукнатини по повърхността си след водно охлаждане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-do-some-galvanized-steel-pipes-bend-more-s-17113629834093568.html Защо някои поцинковани стоманени тръби се огъват по-силно след водно охлаждане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/how-to-prevent-galvanized-steel-pipes-from-ben-17113558255510528.html Как да предотвратите огъване на поцинковани стоманени тръби поради водно охлаждане? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-strict-control-necessary-for-the-temper-17114034669265920.html Защо е необходим строг контрол на температурата на охлаждащата вода, използвана за охлаждане на поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-are-there-specific-requirements-for-the-wa-17113835430306816.html Защо има специфични изисквания за качеството на водата при охлаждане на поцинковани стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/formula-for-chromate-purification-solution-17113558252889088.html Формула за разтвор за пречистване на хромат http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-methods-of-surface-passivation-tr-17113571341673472.html Какви са методите за повърхностна пасивация и кой е най-често използваният? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-surface-passivation-treatment-necessary-17113717765219328.html Защо е необходима повърхностна пасивация за поцинковани покрития? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-passivation-and-how-is-it-defined-17113776424756224.html Какво е пасивация и как се определя? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-should-the-water-droplets-inside-and-outsi-17113571332711424.html Защо водните капчици вътре и извън охладената галванизирана стоманена тръба трябва да се оставят да се оттекат колкото е възможно повече? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-the-temperature-of-the-chromate-passiva-17113629845693440.html Защо температурата на разтвора за хроматно пасивиране е строго контролирана? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-are-there-several-colors-of-passivation-fi-17113658991731712.html Защо има няколко цвята пасивиращи фолиа и какъв цвят е пасивиращият филм върху поцинковани стоманени тръби като цяло? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-properties-of-the-passivation-fil-17113688585118720.html Какви са свойствата на пасивиращия филм? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-are-the-components-of-the-passivation-fil-17113600621880320.html Какви са компонентите на пасивиращото фолио, които осигуряват защита от корозия и какъв е принципът зад него? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-are-acids-added-to-some-chromate-and-chrom-17113571333563392.html Защо се добавят киселини към някои хромати и разтвори за пасивиране на хромна киселина? Какви са предимствата и недостатъците? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/treatment-of-waste-alkali-liquor-and-flux-wast-17113717757977600.html Третиране на отпадъчна алкална течност и отпадъчна течност от флюс http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/treatment-of-waste-acid-bath-17113688617329664.html Третиране на отпадъчна киселинна баня http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/treatment-of-three-wastes-in-hot-dip-galvanizi-17113571346064384.html Третиране на три отпадъка в процеса на горещо поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-do-some-bright-galvanized-surfaces-develop-17113600692937728.html Защо някои ярки галванизирани повърхности развиват черни петна след пасивиране? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/why-is-it-necessary-to-control-the-concentrati-17113658989995008.html Защо е необходимо да се контролира концентрацията на пасивиращия разтвор? http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/what-is-a-steel-plastic-composite-pipe-17113571387106304.html Какво е стоманено-пластмасова композитна тръба? http://bg.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://bg.zhengdapipe.com/info/treatment-of-zinc-ash-17113747117925376.html Обработка на цинкова пепел http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/treatment-of-zinc-slag-17113982800487424.html Лечение на цинкова шлака http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/treatment-of-exhaust-gas-17113571357582336.html Третиране на отработените газове http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/treatment-of-waste-passivation-solution-and-wa-17113571352716288.html Третиране на отпадъчен пасивиращ разтвор и отпадъчен фосфатиращ разтвор http://bg.zhengdapipe.com/uploads/33181/info/n20241028083051cc2c7.jpg http://bg.zhengdapipe.com/info/how-are-lined-with-plastic-composite-pipes-pro-17113658996794368.html Как се произвеждат облицовани с пластмасови композитни тръби? http://bg.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://bg.zhengdapipe.com/info/why-is-it-called-lined-with-plastic-composite-17113805997138944.html Защо се нарича облицована с пластмасова композитна тръба? http://bg.zhengdapipe.com/uploads/33181/info/n202411150842401d60a.jpg http://bg.zhengdapipe.com/info/what-are-the-application-areas-of-steel-plasti-17113571349783552.html Какви са областите на приложение на стоманено-пластмасовите композитни тръби? 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http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/principles-of-corrosion-protection-by-zinc-coa-17174713472427008.html Принципи на защита от корозия чрез цинкови покрития http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/acid-embrittlement-or-hydrogen-embrittlement-17182468497302528.html Киселинна крехкост (или водородна крехкост) http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/quality-defects-easily-occurring-during-pickli-17182468507264000.html Качествени дефекти, които лесно възникват по време на ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-soaking-steel-pipes-in-hot-wate-17182468475216896.html Причината за накисване на стоманени тръби в гореща вода преди ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/internal-and-external-factors-influencing-the-17182468537689088.html Вътрешни и външни фактори, влияещи върху ецването на стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-impact-of-iron-iii-chloride-and-iron-ii-17182468527662080.html Влиянието на съдържанието на железен (III) хлорид (и железен (II) хлорид) в разтвора за ецване със солна киселина върху процеса на ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/reasons-for-achieving-better-results-when-osci-17182468491322368.html Причини за постигане на по-добри резултати при осцилиране на стоманени тръби или разбъркване на разтвора по време на ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/pickling-steel-tubes-using-multi-tank-and-sing-17182468472120320.html Декапиране на стоманени тръби с помощта на методи с много резервоари и единични резервоари http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-pros-and-cons-of-direct-steam-heating-for-17182468468106240.html Плюсовете и минусите на директното нагряване с пара за решения за ецване https://img01.v15cdn.com/gallery/4x3/163.webp http://bg.zhengdapipe.com/info/heating-methods-for-pickling-solutions-17182468525220864.html Методи за нагряване за разтвори за ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-the-presence-of-a-noticeable-cl-17182468530299904.html Причината за наличието на забележим клъстер от корозионни ями по повърхността на заварени стоманени тръби след декапиране http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/purpose-of-using-flux-17182468548027392.html Цел на използването на Flux http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/purpose-of-rinsing-17182468484408320.html Цел на изплакването http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/what-aspects-should-be-self-checked-during-th-17182468552025088.html Какви аспекти трябва да се проверяват самостоятелно по време на процеса на ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reasons-why-steel-pipes-must-be-rinsed-imm-17182468492698624.html Причините, поради които стоманените тръби трябва да се изплакнат веднага след ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-lifting-and-lowering-bundled-st-17182468495713280.html Причината за повдигане и спускане на пакетни стоманени тръби няколко пъти по време на ецване http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/what-are-the-impacts-of-excessive-drying-time-17188847964333056.html Какви са въздействията на прекомерното време за сушене на стоманени тръби? http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/issues-arising-from-inadequately-dried-steel-p-17188847958516736.html Проблеми, възникващи от неадекватно изсушени стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/determination-of-drying-temperature-17188847936807936.html Определяне на температурата на сушене http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/main-components-of-dry-process-solvents-17188847945081856.html Основни компоненти на разтворители за сух процес http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/main-components-of-wet-process-flux-17188847948112896.html Основни компоненти на флюса за мокър процес http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-influence-of-lead-pb-in-molten-zinc-on-h-17193683727590400.html Влиянието на оловото (Pb) в разтопен цинк върху горещо поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/sources-of-alloy-components-in-the-galvanizing-17193723037262848.html Източници на сплавни компоненти в съда за поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/factors-influencing-the-normal-microstructure-17188887665058816.html Фактори, влияещи върху нормалната микроструктура на галванизираните покрития http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/how-is-zinc-securely-plated-onto-stee-17188887621493760.html Как цинкът се нанася сигурно върху стомана? http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/operating-methods-for-drying-17188848110674944.html Работни методи за сушене http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-impact-of-nickel-content-in-steel-tubes-an-17188887807730688.html Влиянието на съдържанието на никел в стоманени тръби и субстрати за поцинковане на съдове върху горещо поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-impact-of-magnesium-in-molten-zinc-on-hot-17188887804404736.html Влиянието на магнезия в стопения цинк върху горещото поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/how-do-aluminum-containing-and-aluminum-free-17188887728989184.html Как се различават съдържащите алуминий и несъдържащите алуминий цинкови стопилки по корозионния си ефект върху желязото http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-impact-of-aluminum-in-molten-zinc-on-hot-d-17188887755383808.html Влиянието на алуминия в стопения цинк върху горещото поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-impact-of-iron-in-molten-zinc-on-hot-dip-g-17188848111444992.html Влиянието на желязото в стопения цинк върху горещото поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-impact-of-the-quality-of-zinc-aluminum-all-17195021678437376.html Влияние на качеството на цинково-алуминиевата сплав върху галванизираните покрития http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/advantages-and-disadvantages-of-adding-lead-to-17195021717677056.html Предимства и недостатъци на добавянето на олово към цинковата вана http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-inclining-steel-tubes-at-an-ang-17194986417808384.html Причината за накланянето на стоманените тръби под ъгъл при потапянето им в цинковата баня за поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/formation-conditions-composition-and-propert-17194986543588352.html Условия за образуване, състав и свойства на цинковата шлака http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/formation-and-composition-of-zinc-ash-17194986399589376.html Образуване и състав на цинковата пепел http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/reasons-for-frequent-occurrences-of-missing-ga-17195021930914816.html Причини за чести случаи на липса на поцинковане вътре и в краищата на поцинковани стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/reasons-why-aluminum-cannot-be-added-to-the-zi-17195021882532864.html Причини, поради които алуминият не може да се добавя към цинковата баня при мокро горещо поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/reasons-for-uncoated-spots-during-hot-dip-galv-17195021945463808.html Причини за петна без покритие по време на горещо поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/methods-to-reduce-the-production-of-zinc-ash-17195021839541248.html Методи за намаляване на производството на цинкова пепел http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/factors-influencing-the-growth-rate-of-zinc-as-17195061080646656.html Фактори, влияещи върху скоростта на растеж на цинковата пепел http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/methods-to-reduce-the-production-of-zinc-as-17195022070768640.html Методи за намаляване на производството на цинкова пепел http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-why-galvanized-steel-tubes-generall-17195021993272320.html Причината, поради която поцинкованите стоманени тръби обикновено нямат блясъци, докато поцинкованата ламарина често ги има http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-adding-zinc-ingots-directly-int-17195061210719232.html Причината за добавяне на цинкови слитъци директно в съда за поцинковане от двата края http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-the-difference-in-spangle-size-17195021994058752.html Причината за разликата в размера на блясъка между тънкостенни и дебелостенни тръби при еднакъв процес и работни условия http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/reasons-why-the-product-quality-of-dry-hot-dip-17195021958341632.html Причини, поради които качеството на продукта на сухия горещо поцинкован цинк е по-добро от мокрия горещо поцинкован цинк http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/formation-and-composition-of-zinc-dross-17197545838289920.html Образуване и състав на цинковата шлака http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/what-is-zinc-dros-17197545724945409.html Какво е цинкова шлака http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-detrimental-effects-of-zinc-ash-on-hot-dip-17197545753764864.html Вредните ефекти на цинковата пепел върху горещо поцинковане http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/pros-and-cons-of-frequently-scraping-zinc-oxid-17197545772459008.html Плюсове и минуси на честото изстъргване на цинков оксид (цинкова пепел) http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-why-there-is-more-zinc-oxide-zinc-17197545732072448.html Причината, поради която има повече цинков оксид (цинкова пепел) върху повърхността на цинковата вана в края на стоманените тръби по време на горещо поцинковане, отколкото навсякъде другаде http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reasons-for-preferably-using-superheated-s-17197545776538624.html Причините за предпочитане използването на прегрята пара за вътрешно продухване и изтриване на цинк: http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/the-reason-for-blowing-and-wiping-the-inner-an-17197545763054592.html Причината за продухване и избърсване на вътрешните и външните повърхности на поцинковани стоманени тръби http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/impact-of-pretreatment-on-the-adhesion-of-galv-17197545751061504.html Влияние на предварителната обработка върху адхезията на галванизираните покрития http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/impact-of-molten-zinc-temperature-on-zinc-dros-17197545763972096.html Влияние на температурата на стопения цинк върху цинковата шлака http://bg.zhengdapipe.com/uploads/33181/info/n202411300909459aed7.jpg http://bg.zhengdapipe.com/info/impact-of-zinc-dross-on-the-galvanized-layer-o-17197545743655936.html Въздействие на цинковата шлака върху галванизирания слой на галванизираните стоманени тръби 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Интернационализация https://img01.v15cdn.com/gallery/4x3/86.webp http://bg.zhengdapipe.com/info/the-second-part-of-the-welded-pipe-manufacturi-17520065726669824.html Втората част от производството на заварени тръби Глава 1. Вертикално рязане https://img01.v15cdn.com/gallery/4x3/286.webp http://bg.zhengdapipe.com/info/9-why-do-high-frequency-welding-what-are-the-17520057939158016.html 9. Защо високо - честотно заваряване? Какви са характеристиките на високото заваряване с високо -? https://img01.v15cdn.com/gallery/4x3/123.webp http://bg.zhengdapipe.com/info/2-general-article-on-high-frequency-welded-st-17520069461255168.html 2. Обща статия за високо - честотно заварена стоманена тръба Производство https://img01.v15cdn.com/gallery/4x3/183.webp http://bg.zhengdapipe.com/info/11-what-equipment-is-needed-for-the-productio-17520073191793664.html 11. 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Каква е функцията за разкопчаване на храненето? https://img01.v15cdn.com/gallery/4x3/100.webp http://bg.zhengdapipe.com/info/27-3-what-is-the-function-of-shear-butt-weldi-17520061807010816.html 27.3. Каква е функцията на заваряването на срязване? https://img01.v15cdn.com/gallery/4x3/101.webp http://bg.zhengdapipe.com/info/27-5-what-is-the-role-of-delivery-17520069422654464.html 27.5. Каква е ролята на доставката? https://img01.v15cdn.com/gallery/4x3/284.webp http://bg.zhengdapipe.com/info/27-4-what-is-the-function-of-edge-cutting-17520061813761024.html 27.4. Каква е функцията на рязането на ръба? https://img01.v15cdn.com/gallery/4x3/100.webp http://bg.zhengdapipe.com/info/27-6-1-what-is-a-molding-angle-17520067493127168.html 27.6.1. Какво е ъгъл на формоване? https://img01.v15cdn.com/gallery/4x3/275.webp http://bg.zhengdapipe.com/info/27-6-what-is-the-role-of-molding-17520063611954176.html 27.6. Каква е ролята на формоването? https://img01.v15cdn.com/gallery/4x3/181.webp http://bg.zhengdapipe.com/info/27-9-what-parameters-need-to-be-adjusted-for-17520061807944704.html 27.9. Какви параметри трябва да се регулират за вътрешно и външно заваряване? https://img01.v15cdn.com/gallery/4x3/41.webp http://bg.zhengdapipe.com/info/27-8-what-is-the-function-of-external-welding-17520078987240448.html 27.8. Каква е функцията на външното заваряване? https://img01.v15cdn.com/gallery/4x3/78.webp http://bg.zhengdapipe.com/info/27-7-what-is-the-function-of-internal-welding-17520061810615296.html 27.7. Каква е функцията на вътрешното заваряване? https://img01.v15cdn.com/gallery/4x3/258.webp http://bg.zhengdapipe.com/info/27-10-what-is-the-role-of-the-primary-tube-in-17520067497059328.html 27.10. Каква е ролята на проверката на първичната тръба? https://img01.v15cdn.com/gallery/4x3/272.webp http://bg.zhengdapipe.com/info/27-12-what-is-the-function-of-a-repair-weld-17520086764053504.html 27.12. Каква е функцията на ремонтната заварка? https://img01.v15cdn.com/gallery/4x3/286.webp http://bg.zhengdapipe.com/info/27-11-what-is-the-function-of-slag-cleaning-17520096292250624.html 27.11. Каква е функцията на почистването на шлаките? https://img01.v15cdn.com/gallery/4x3/186.webp http://bg.zhengdapipe.com/info/28-what-problems-are-likely-to-occur-during-t-17589424737264640.html 28. Какви проблеми е вероятно да възникнат по време на производството на спирално заварени тръби? Как възникват? Как могат да бъдат избегнати? 28.1. Причини за дефекти на порите. https://img01.v15cdn.com/gallery/4x3/80.webp http://bg.zhengdapipe.com/info/27-13-1-what-should-be-noted-when-chamfering-17589424733578240.html 27.13.1. Какво трябва да се има предвид при скосяване? https://img01.v15cdn.com/gallery/4x3/210.webp http://bg.zhengdapipe.com/info/27-13-what-is-the-function-of-a-chamfer-17589424730874880.html 27.13. Каква е функцията на фаската? https://img01.v15cdn.com/gallery/4x3/92.webp http://bg.zhengdapipe.com/info/28-3-what-are-the-causes-of-defects-17589424751272960.html 28.3. Какви са причините за 夹渣 дефекти? https://img01.v15cdn.com/gallery/4x3/187.webp http://bg.zhengdapipe.com/info/28-2-what-are-the-solutions-for-pore-defects-17589424737412096.html 28.2. Какви са решенията за дефекти на порите? https://img01.v15cdn.com/gallery/4x3/190.webp http://bg.zhengdapipe.com/info/28-5-what-are-the-causes-of-edge-biting-defec-17589424741278720.html 28.5. Какви са причините за дефектите при захапване на ръба? https://img01.v15cdn.com/gallery/4x3/281.webp http://bg.zhengdapipe.com/info/28-4-what-are-the-solutions-to-the-inclusions-17589424750273536.html 28.4. Какви са решенията на дефекта на включванията? https://img01.v15cdn.com/gallery/4x3/161.webp http://bg.zhengdapipe.com/info/28-9-crack-defects-17589424763102208.html 28.9. Дефекти на пукнатини? https://img01.v15cdn.com/gallery/4x3/54.webp http://bg.zhengdapipe.com/info/28-8-what-are-the-measures-to-address-incompl-17589424767738880.html 28.8. Какви са мерките за справяне с непълното проникване и липсата на дефекти при сливане? https://img01.v15cdn.com/gallery/4x3/112.webp http://bg.zhengdapipe.com/info/28-7-lack-of-fusion-and-incomplete-penetratio-17589424761005056.html 28.7. Липса на сливане и дефекти при непълно проникване? https://img01.v15cdn.com/gallery/4x3/162.webp http://bg.zhengdapipe.com/info/28-6-what-are-the-solutions-to-edge-biting-de-17589424763872256.html 28.6. Какви са решенията за дефекти в захапването на ръбовете? https://img01.v15cdn.com/gallery/4x3/149.webp http://bg.zhengdapipe.com/info/29-1-why-conduct-a-static-water-pressure-test-17589424764838912.html 29.1. Защо да провеждате тест за статично водно налягане? https://img01.v15cdn.com/gallery/4x3/152.webp http://bg.zhengdapipe.com/info/29-how-to-ensure-the-quality-of-spiral-welded-17589424775324672.html 29. Как да се гарантира качеството на спирално заварените тръби? Какви тестове са необходими? https://img01.v15cdn.com/gallery/4x3/267.webp http://bg.zhengdapipe.com/info/28-10-what-are-the-solutions-for-crack-defect-17589424771998720.html 28.10. Какви са решенията за дефекти с пукнатини? https://img01.v15cdn.com/gallery/4x3/134.webp http://bg.zhengdapipe.com/info/29-2-1-x-what-are-the-inspection-methods-for-l-17589424772588544.html 29.2.1.X Какви са методите за инспекция на светлина? https://img01.v15cdn.com/gallery/4x3/128.webp http://bg.zhengdapipe.com/info/29-2-why-do-x-ray-inspection-17589424779731968.html 29.2. Защо да правите рентгенова проверка?- https://img01.v15cdn.com/gallery/4x3/9.webp http://bg.zhengdapipe.com/info/29-2-2-what-are-the-advantages-of-tv-observat-17589424771785728.html 29.2.2. Какви са предимствата на телевизионното наблюдение? https://img01.v15cdn.com/gallery/4x3/13.webp http://bg.zhengdapipe.com/info/29-3-why-ultrasonic-inspection-17589424782992384.html 29.3. Защо ултразвукова проверка? https://img01.v15cdn.com/gallery/4x3/299.webp http://bg.zhengdapipe.com/info/29-2-3-x-what-are-the-inspection-standards-for-17589424782418944.html 29.2.3.X Какви са стандартите за проверка на светлината? https://img01.v15cdn.com/gallery/4x3/154.webp http://bg.zhengdapipe.com/info/1-what-is-hot-dip-galvanizing-17589434460054528.html 1. Какво е горещо поцинковане-? https://img01.v15cdn.com/gallery/4x3/118.webp http://bg.zhengdapipe.com/info/30-why-does-spiral-welded-pipe-need-demagneti-17589424790414336.html 30. Защо спирално заварената тръба се нуждае от размагнитване? Какво е демагнетизация? https://img01.v15cdn.com/gallery/4x3/273.webp http://bg.zhengdapipe.com/info/5-what-are-the-advantages-of-hot-dip-galvaniz-17589424784286720.html 5. Какви са предимствата на горещото-поцинковане? https://img01.v15cdn.com/gallery/4x3/201.webp http://bg.zhengdapipe.com/info/4-what-is-the-value-of-hot-dip-galvanized-ste-17589424774112256.html 4. Каква е стойността на горещо поцинкованата стоманена тръба?- https://img01.v15cdn.com/gallery/4x3/283.webp http://bg.zhengdapipe.com/info/3-why-should-the-surface-of-steel-products-be-17589424789398528.html 3. Защо повърхността на стоманените продукти трябва да бъде горещо поцинкована? https://img01.v15cdn.com/gallery/4x3/176.webp http://bg.zhengdapipe.com/info/2-what-is-the-principle-of-hot-dip-galvanizin-17589424773686272.html 2. Какъв е принципът на горещо поцинковане-? https://img01.v15cdn.com/gallery/4x3/15.webp http://bg.zhengdapipe.com/info/5-3-the-coating-is-firmly-bonded-to-the-subst-17589424787416064.html 5.3. Покритието е здраво залепено към основата https://img01.v15cdn.com/gallery/4x3/57.webp http://bg.zhengdapipe.com/info/5-2-lasting-durability-17589424781288448.html 5.2. Трайна издръжливост https://img01.v15cdn.com/gallery/4x3/21.webp http://bg.zhengdapipe.com/info/5-5-simple-process-and-high-efficiency-17589424781501440.html 5.5. Опростен процес и висока ефективност https://img01.v15cdn.com/gallery/4x3/170.webp http://bg.zhengdapipe.com/info/5-4-comprehensive-protection-17589424783827968.html 5.4. Цялостна защита https://img01.v15cdn.com/gallery/4x3/146.webp http://bg.zhengdapipe.com/info/5-7-aesthetic-17589424795804672.html 5.7. Естетичен https://img01.v15cdn.com/gallery/4x3/7.webp http://bg.zhengdapipe.com/info/5-6-strong-adaptability-17589424788628480.html 5.6. Силна адаптивност https://img01.v15cdn.com/gallery/4x3/228.webp http://bg.zhengdapipe.com/info/5-9-wear-resistance-and-high-temperature-resi-17589424793248768.html 5.9. Устойчивост на износване и устойчивост на висока температура https://img01.v15cdn.com/gallery/4x3/114.webp http://bg.zhengdapipe.com/info/5-8-environmental-protection-and-energy-savin-17589424794264576.html 5.8. Опазване на околната среда и енергоспестяване https://img01.v15cdn.com/gallery/4x3/224.webp