Views: 138 Author: Site Editor Publish Time: 2018-12-25 Origin: Site
There are many surface treatment methods for metal products, such as mechanical galvanized(as shown in photo1 half saddle clamp), hot-dip galvanized(as shown in photo2 post cap), Galvanized(as shown in photo1 full saddle clamp).What are the differences in these processes?
1. Mechanical coated is a kind of coating consisting of uniform flat metal particles. According to the thickness of the coating, it can be divided into two categories: one is MG (mechanical galvanizing), which thickness is 25.4-88.9μm, which can replace hot-dip galvanized products; the other is MP (mechanical plating), which is less than 25.4 μm, which can replace electrical products.
Mechanical plating: The coating has a uniform silver-white appearance, but its color is not as good as that of electrical, and has small bumps; the uniformity, adhesion and coating ability of the coating are good.
Mechanical galvanized process: degreasing rinsing pickling (or shot peening) rinsing flash plating mechanical plating separation rinsing drying passivation, etc.
2. Hot-dip galvanized: Thick zinc layer, strong corrosion resistance, high price.
Hot-dip galvanized process: iron parts are cleaned, then treated with solvent, dried and immersed in zinc solution. Iron reacts with molten zinc to form an alloyed zinc layer. The process is degreasing-washing-pickling-assisting-plating-drying-hot-dip galvanizing-separating-cooling passivation.
3. Galvanized: thin zinc layer, poor corrosion resistance, low price.
Galvanized process: chemical degreasing hot water washing water washing electrolytic degreasing hot water washing water washing strong corrosion water washing galvanized ferroalloy water washing water washing light out passivation water washing drying.
Copyright 2022 Hebei Crown Wealth Metal Products Co., Ltd. | LINKS: Pole Line Hardware | Building Hardware | Bird Spikes | Bird Control