Introduction of Hydraulic Cylinder Chrome Rod
Chrome plated hydraulic piston rod refers to the act of depositing chromium as a coating onto other metals.
Chromium is a slightly blue silver white metal that is easily passivated in air, forming a very thin passivation film on its surface, thus exhibiting the properties of precious metals.
The chrome plating layer has high hardness, and its hardness can vary within a wide range of 400-1200HV depending on the composition of the plating solution and process conditions. The chrome plating layer has good heat resistance. When heated below 500 ℃, its luster and hardness do not show significant changes. When the temperature is above 500 ℃, it begins to oxidize and change color, and when the temperature is above 700 ℃, the hardness begins to decrease. The friction coefficient of chrome plating is small, especially the dry friction coefficient, which is the lowest among all metals. So the chrome layer has good wear resistance.
The chrome plating layer has good chemical stability and does not react in alkali, sulfide, nitric acid, and most organic acids, but can be dissolved in hydrochloric acid and hot acids. In the visible light range, the reflectivity of chromium is about 65%, between silver (88%) and nickel (55%), and it is superior to silver and nickel because chromium does not change color and can maintain its reflectivity for a long time during use.