Electroplated hard chrome is used as the wear-resistant protective coating on the high-strength steel of the piston rod. The wear resistance can meet the requirements of the parts. However, the micro-cracks in the chrome-plated layer tend to deteriorate the corrosion resistance of the protective layer, and the corrosion of the substrate will be Premature flaking of the coating, thus losing the protective effect. Some researches on the modification of hard chrome plating have been carried out at home and abroad to overcome the problem of poor corrosion resistance of hard chrome plating. The United States, Japan, and the European Union have developed crack-free chrome plating on pipe rod. Dw-032 chrome-plated additive can obtain bright and hard chrome plating with 2,500 micro-cracks. This is a significant cost savings over pulsed chrome plating.
Process advantages:
● It is possible to apply a coating thickness of up to 0.100 per side.
● Hardness 70RC has excellent brightness and wear resistance.
● The thickness of the salt spray coating for 750 hours of corrosion resistance is less than 0.002.
● Very low voltage and high deposition rate.
● Excellent adhesion.
● Current efficiency up to 35%