Hard chrome plated rod is an important component in many mechanical systems.

I. Structure and Design

Material

Commonly made of high - strength steel, such as carbon steel or alloy steel. Carbon steel piston rods are cost - effective and can provide sufficient strength for many general - purpose applications. Alloy steel piston rods, on the other hand, are often used in more demanding situations where higher strength, better wear resistance, and corrosion resistance are required. For instance, in some marine applications, piston rods made of alloy steel with anti - corrosion coatings are used to prevent rusting in the salty seawater environment.

II. Function

Motion Transmission

In an engine or a hydraulic cylinder, the piston rod is connected to the piston at one end. When the piston moves, the piston rod transmits this linear motion to the external components. For example, in an internal combustion engine, the up - and - down motion of the piston is transferred by the piston rod to the crankshaft, which then converts this linear motion into rotational motion.

Force Transmission

It also transmits the force generated by the piston. In a hydraulic system, the pressure acting on the piston is transferred through the piston rod to perform work, such as lifting heavy objects in a hydraulic lift. The piston rod must be able to withstand the compressive and tensile forces without deformation or failure.