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  • If the zinc coating is good, but in 3% nitric acid when the light, the coating has dark shadow, passivation occurs when the film is brown, may be caused by foreign metal impurities such as copper or lead in the galvanizing liquid. When problems occur in the process of galvanizing large coil galvanized wire, the temperature and current density are checked first, and then the content of zinc and sodium hydroxide in the plating solution is measured and adjusted through the analysis of the plating solution. Whether DPE content is low can be determined by hull cell test.

    heavy duty welded wire mesh panels

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    heavy duty welded wire mesh panels heavy duty welded wire mesh panels

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  • Galvanizing refers to the surface treatment technology of plating a layer of zinc on the surface of metal, alloy or other materials to play the role of aesthetics and rust prevention. The main method used now is hot galvanizing. However, hot dip galvanizing industry has been developed with the rapid development of cold strip rolling in the past 30 years. The production process of hot-galvanized sheet mainly includes: raw plate preparation → pre-plating treatment → hot-dip plating → post-plating treatment → finished product inspection and so on.

    heavy duty welded wire mesh panels

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    heavy duty welded wire mesh panels heavy duty welded wire mesh panels

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  • welding

    heavy duty welded wire mesh panels

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  • Third, after the production process of cold galvanized wire treatment. Galvanized cold galvanized wire needs to go through a series of post-treatment processes to ensure its quality and performance.

    heavy duty welded wire mesh panels

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    heavy duty welded wire mesh panels heavy duty welded wire mesh panels

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