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Hard chrome process
Adopting advanced technology of DYcr-888 technology, built on the basis of German technology,
Made with German raw materials and technology。
DYcr-888 Cylinder Opener is for opening the cylinder,DYcr-888Supplements for daily supplement use
The advantages of high-efficiency hard chromium plating process:
1.Process does not contain fluorine, environmentally friendly products;
2.Excellent throwing ability;
3.The finely structured chromium plating layer, the number of micro-cracks is about600-1200Article/cm；
4.Using a new type of catalyst, the current efficiency is as high as26-30%, Does not corrode the anode;
5.No corrosion to steel and alloy steel;
6.Good ductility, the workpiece is not easy to burn;
7.The process is stable and contains only two components. The operation is simple and convenient ;
8.Pay attention to the analysis and control of chromic acid, trivalent chromium and sulfate content in daily production;
9. To control the deposition rate of the coating,Other hard chromium plating processes can be easily converted to this process.
| Process parameters: | ||
| Standard | Range | |
| Chromic Anhydride | 220g/L | 200-250g/L |
| Acid ratio | 100:1.1 | 100:1-1.2 |
| Trivalent chromium | 3g/L | 2-5g/L |
| DYcr-888KG | 20ml/L | 10-25ml/L |
| DYcr-888BJ | 200ml/LkgCrO3 | 150-250ml/LkgCrO3 |
| Current density | 55A/d㎡ | 50-60A/d㎡ |
| Temperature | 58℃ | 54-62℃ |
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