Piston rod electroplating The piston rod is made of high-strength carbon steel to meet the strength requirements, and then chrome-plated to make it have a hard, smooth, and corrosion-resistant surface finish.
Chromium electroplating is a complex electrochemical process. It includes immersion in a chemical bath heated by chromic acid. The parts to be plated, the voltage is then applied through the two parts and the liquid chemical solution. After a complex chemical process, after a period of time, the thin layer of chromium metal surface will be slowly applied.
The polishing tube uses a soft polishing wheel, or a disc-shaped polishing disk, plus a polishing paste, which is also an abrasive, so that the workpiece can be finely processed to obtain a high surface finish. But because it has no rigid reference surface in the processing process, it cannot eliminate the form and position error. However, compared with honing, it can polish irregular surfaces.
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