镀铬工艺对镀层硬度影响研究

hromium plating mainly uses the higher microhardness formed in the crystallization process to improve the abrasion resistance of the surface of the work. In this paper, the mechanism of the formation of high hardness of chromium layer is analyzed and tested to explore the main factors of medium concentration chromium plating solution and its affecting the hardness of the plating. The test results show that the main factor affecting the hardness of the plating is the temperature of the plating solution, and the microhard of the plating is greater than HV750 when the temperature of the plating solution is between 40-60 ℃, which meets the technical conditions. distance between the cathode and the anode does not affect the microhardness of the plating.