Heat Treatment Methods for Precision Piston Rod Materials

Precision piston rods are widely used connecting components that can be found in almost all mechanical products. Their commonly used materials include 45# steel, 40Cr, and 2Cr13, which require specific processing procedures such as electroplating and heat treatment to achieve the desired properties. These treatments enhance strength, surface hardness, corrosion resistance, wear resistance, and anti-seizure performance to meet various application demands. The heat treatment methods for precision piston rod materials are as follows:

1. 45# Steel

• Heat Treatment Process: Preliminary heat treatment → Low-temperature spheroidizing annealing → Quenching → Critical temperature quenching → High-frequency quenching

2. 40Cr

• Heat Treatment Process: Preliminary heat treatment → Stress relief → Quenching and tempering → Quality inspection

3. 2Cr13

• Heat Treatment Process: Preliminary heat treatment → Quenching and tempering → Stress relief → High-frequency quenching and low-temperature tempering