black iron wire factory

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  • If the zinc coating is good, but when the light comes out in 3% nitric acid, there is a dark shadow on the coating, and the film is brown when passivation occurs, which may be caused by foreign metal impurities such as copper or lead in the galvanized liquid. When there is a problem in the process of galvanizing, check the temperature and current density first, and then measure and adjust the content of zinc and sodium hydroxide in the bath through the analysis of the bath. Whether DPE levels are low can be determined by Hull cell test.

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  • Post time: 29-03-23

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  • Through the maintenance of galvanized wire, it can not only greatly prolong its service life, but also improve its efficiency in the daily use process. Because the labeled electrode potential of zinc is -0.762v, which is negative than iron, zinc becomes the anode when the galvanic cell is formed after being corroded by the medium. It itself is dissolved to protect the steel matrix. The duration of the protection of galvanized wire layer has a great relationship with the thickness.

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  • Other discarded guardrails can be used as enclosures for cattle, sheep or other domestic animals. It has a good protective effect. Together these robust products do not have a variety of effects on the overall perimeter. It also shows the value of the rich guardrail network in the community, rural cultivation, or cultivation. Although the appearance of barbed wire fence is not safe after abandonment, the protective function will not be affected, so it will not affect the recovery and use.

    black iron wire factory

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