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Design Of Zhejiang Weigao Bolt Factory Products

Lid sinds 13 apr 2020
Startgewicht: 50 Kg
Streefgewicht: 45 Kg

1. Due to the special treatment on its surface, it has a relatively smooth appearance, and its surface is relatively smooth, it is not easy to appear burrs, and it has the characteristics of silvery white. In production, its thickness should be able to be controlled within a certain range for proper selection.

2. It has excellent performance in use, has good tensile properties, is not prone to breakage, and there is no temperature hazard during use, which can ensure its mechanical properties.
3. The galvanized China Nut has excellent corrosion resistance, so it has good usability and strong fastening, and it is generally not easy to loosen.
The post-treatment of hot-dip galvanized China Nut includes three aspects, passivation, pre-phosphating and oiling. First, passivation treatment of hot-dip galvanized China Nut can improve the surface structure and gloss of the galvanized layer, improve the corrosion resistance and service life of the galvanized layer, and can improve the adhesion between the coating and the base metal. Passivation treatment mainly adopts chromate passivation. Some activators are added to the passivation solution, such as fluoride, phosphoric acid or sulfuric acid, so that a thick chromate film is obtained after passivation. When there is fluoride in the passivation solution, the surface tension of the steel strip can be reduced, the film-forming reaction can be accelerated, and the chemical polishing can be increased to make the passivation film fine and bright.

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