Do all precision piston rods need to be tempered?

Precision piston rod mechanical products, almost all will be applied to a product. However, due to the use of precision piston rods and different working conditions, sometimes, precision piston rods must be plated, rolled, quenched, quenched, tempered, nitriding and other processes. Through these processes, may make certain aspects of the piston rod performance requirements for more product applications. So piston rods are required to be tempered?

However, not all piston rods need to be tempered. Its tempering treatment, mainly need to look at the piston rod used in the production of materials to decide. Because tempering is just a double heat treatment process of quenching plus high temperature tempering, the piston rod products after tempering treatment can obtain the following benefits:

　　1, can effectively improve the working strength of the material.

　　2, the piston rod can have good comprehensive mechanical properties after tempering treatment.

　　3、It helps the closure of tiny cracks on the surface, hinders the expansion of erosion, and improves the surface corrosion resistance.

　　4, piston rod after tempering treatment, can effectively eliminate the internal stress generated by quenching to achieve the desired mechanical properties.

　　Attention:

　　Precision piston rod in the tempering treatment, if you want to have quenched piston rod, re-heating, then it must be (350 ℃ ~ 650 ℃) between a certain temperature. Otherwise, higher or lower than this temperature, will make the quenching produced by the internal stress can not be eliminated, can not achieve the expected mechanical properties.