What should be paid attention to when galvanized iron wire is galvanized

The duration of the protective effect of the galvanized layer on galvanized iron wire has a great relationship with the thickness of the coating. Generally speaking, in relatively dry main air and when used indoors, the thickness of the galvanized layer only needs to be 6-12μm", while under harsh environmental conditions, the thickness of the galvanized layer needs to be 20μm", and the maximum can be reached 50μm". Therefore, the influence of the environment should be considered when choosing the thickness of the galvanized layer. After the passivation treatment of the galvanized layer, a layer of bright, old and beautiful colored passivation film can be formed, which can significantly improve its protective performance and decorative performance.

There are many kinds of galvanizing solutions for galvanized iron wire, which can be divided into two categories: cyanide plating solution and cyanide-free plating solution according to their properties. Cyanide zinc plating solution has good dispersing ability and covering ability, the crystallization of the coating is smooth and fine, easy to operate, and has a wide range of applications. It has been used in production for a long time. However, due to the highly toxic cyanide contained in the plating solution, the gas released during the electroplating process is more harmful to the health of workers. Its wastewater must be strictly treated before discharge.