How to choose galvanized iron wire
It is no stranger to mention galvanized wire, because galvanized wire has a great influence on our days, and we can see it everywhere, including the use of aerospace technology, highway construction protection, wall construction, and even our daily operations. To the data line and so on have the shadow of galvanized wire, how to choose the process of galvanized iron wire!
Check the appearance of the galvanized wire of the product process: the surface of the coating of the good process galvanized wire is continuous and practical and smooth. The equipment of the plated part is not sag, dripping or slag is present, and the surface of the plated part should be free of leakage plating. Defects such as iron. The leakage plating area is a spot size of 0.5 mm or less in diameter.
Regardless of the size of the plated part, the spotted area is 0.5-1 mm in diameter, not more than 3 points per square centimeter, and the total number of spotted spots in the plated part does not exceed 10 points.
At non-joined or non-joined corners, the height does not exceed 1.5 mm of sag dripping or slag; the plating parts are in contact with the hangers and the handling objects, but no iron.
Check the zinc adhesion and zinc layer thickness of the process galvanized wire: When the thickness of the galvanized wire and the plated part is 3-4 mm, the zinc adhesion should be less than 460 g/m, that is, the uniform thickness of the zinc layer is not lower than 65 microns;
When the thickness of the plated part is greater than 4 mm, the amount of zinc adhered shall not be less than 610 g/m, that is, the uniform thickness of the zinc layer shall not be less than 86 μm; the plating of the standard process galvanized wire shall be uniform, and the galvanized layer shall be uniformly coated with sulfuric acid. The copper solution test etched five times without iron.
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