The characteristics of large rolls of galvanized wire are composed of different chemical components. Galvanizing methods are mainly divided into hot dip galvanizing method and electric galvanizing method. Electrogalvanizing uses electrolyte galvanizing, which is mainly divided into five types: ammonium and potassium mixed bath galvanizing, alkali zinc and acid salt galvanizing, ammonium salt galvanizing, alkaline cyanide galvanizing, potassium salt galvanized and sulfate galvanizing. The duration of the protective effect of the galvanized layer is closely related to the thickness of the coating.
In general, in the relatively dry main gas and indoor use, the thickness of the galvanized layer is only 6-12 μm “, and under harsh environmental conditions, the thickness of the galvanized layer needs 20μm “to reach 50μm”. Therefore, the environmental impact should be considered when selecting the thickness of galvanized layer. After passivation treatment, a bright, old and beautiful color passivation film can be generated, which can significantly improve its protective performance.
Galvanized wire should be galvanized evenly, one is now its cross section, and the second is the longitudinal uniformity. In the actual operation process, such as the shaking of the steel wire, the surface scum in the plating pot and other reasons will cause the accumulation of the galvanized layer on the surface of the galvanized wire, and efforts should be made to solve the problem.
Post time: 09-11-23