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Cold plating” is both “electroplating”, that is, the zinc salt solution through electrolysis, so that the iron ions and zinc ions replacement reflection, generally speaking, without heating, the amount of zinc on very little, encounter wet environment is easy to rust.

When the thickness of hot-dip galvanized steel plate load flat steel is not less than 5mm, the average weight of zinc layer after galvanizing is not less than 610g/m2; when the thickness of load flat steel is less than 5mm, the average weight of zinc layer after galvanizing is not less than 460g/ m2. Since the black parts will remove the surface rust layer after pickling, so after galvanizing does not increase the thickness of flat steel, which purchasers should pay attention to and cannot use it as This should be noted by the purchaser and should not be used as a criterion for whether the flat steel meets the requirements.

 

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Post time: Sep-23-2021