Anti rust treatment method of Dacromet hexagon bolt:
1. Rust removal:
The derusting process in Dacromet bolt treatment is different from the general pre-treatment method of coating, and acid pickling is used for derusting. This is because most of the parts treated by Dacromet are high-strength bolts, nuts and high-strength stamping parts, which will produce hydrogen embrittlement after acid pickling and affect the product quality.
2. Painting:
It refers to the method of coating the workpiece surface evenly. Dacromet coating method is to adopt different coating methods according to different quality requirements of workpieces and products. Generally, it can be divided into three methods: dip coating, spray coating and brush coating.
3. Curing:
After coating Dacromet wet film on the surface of the workpiece, the Dacromet coating is formed by the following reaction changes through the oven curing process.
Anti rust treatment method of Dacromet hexagon bolt is very important for the bolt using. All of WINDO METAL bolts and nuts products have strict quality control from producing to delivery.
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