Dacromet metal coating process is a new technology. According to different coating methods, it can be divided into methods such as dipping and drying, spraying and brushing. When choosing which method, the first thing to consider is the coating on the cylinder barrel. Whether the layer is functional or decorative, and the control of coating thickness. Production speed. Product shape and required quality, careful consideration of the above issues will determine which way is more suitable for you.
Let me talk about the protective effect of Dacromet metal coating on the steel substrate, and summarize the points that can be summarized:
1. Barrier effect: Due to the overlap of flake zinc and aluminum layers, it hinders the process of water, oxygen and other corrosive media from reaching the substrate, and can play an isolation and shielding role;
Dacromet metal coating.
2. Passivation: chromic acid reacts with zinc, aluminum powder and matrix metal to produce a dense passivation film. The passivation film has good corrosion resistance;
3. Cathodic protection: The main protective effect of the zinc-aluminum-chromium coating is the same as that of the galvanized layer, mainly cathodic protection of the substrate.
The above is the protective effect of dacromet metal coating on the steel substrate introduced by the manufacturer. I hope it will be helpful to everyone. If you need this aspect, please call us, and we will serve you wholeheartedly.
