The hard chrome piston rod is a thick chromium plating layer on the surface of the steel substrate.Its thickness is usually 10-30μm. Improve parts hardness, wear resistance, corrosion resistance and other functions described temperature characteristics with chrome.
Why should the piston rod be chrome-plated?
Among the components of a hydraulic cylinder, the piston rod is an indispensable connecting part. Because, in a hydraulic cylinder, the piston rod can be said to require a number of mechanical properties, and its normal operation often affects other components. Therefore, the requirements for the piston rod of the hydraulic cylinder are relatively high, and it must be smooth, corrosion-resistant, and have high tensile strength. It must also provide a low-friction surface because the hydraulic cylinder that moves back and forth sweeps over the seals, wipers and bearing surfaces. Therefore, in order to meet all these different characteristics and requirements, it is necessary to chrome the piston rod.
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