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Operating skills to improve the corrosion resistance of chrome-plated piston rods
Aug 21, 2018

The special feature of chrome-plated piston rods is that they are coated with a thicker layer of chrome on the surface of the steel substrate, usually with a thickness ranging from 10 to 30 μm. The use of chromium properties can improve the hardness, wear resistance, temperature resistance and corrosion resistance of chrome-plated piston rods.


So, what are the characteristics of the actual process of hard chrome plating? First, the cathode current efficiency is as high as 25% to 35%, and the deposition speed is fast. Secondly, the hardness of the coating is high (900 to 1200 HV), which is uniform and dense mesh crack, and has good wear resistance; microcracks can be generated, and the number of microcracks can be Up to 800-2000 strips/cm (adjusted as needed) to improve corrosion resistance. At this time, the chrome-plated piston rod can withstand salt spray for more than 500 hours.


Under normal circumstances, in the chrome plating process, due to the good dispersion ability of the plating solution, a layer of chromium protective layer with uniform thickness can be obtained on the surface of the piston rod, which is not easy to produce rough blisters, and the appearance of the chrome layer is bright and smooth. Moreover, the plating layer has strong bonding force with the substrate, and the pretreatment is similar to the conventional process, and the operation is easier than the conventional process.http://www.xhychromerod.com/