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Heat treatment and repair method of chrome plated piston rod
Dec 25, 2018

The production process of chrome plated piston rod also includes assembly and welding. It is usually required to assemble them in place according to the design drawings, position welding, welding, and inspection according to requirements. Generally, heat treatment is arranged before finishing after roughing, and there are often normalizing, tempering, stressing and quenching, which are adopted according to design requirements.


The chrome plated piston rod is usually made of hot-rolled round steel, and is directly tempered after being unloaded. The forged round is roughed, and after the inspection is qualified, the quenching and tempering treatment is carried out. After the combination rod is welded and tested, it can be tempered and destressed. If it is required to be quenched and tempered, it can be directly subjected to tempering treatment without tempering and stress treatment.


In some cases, certain repairs are required. In the finishing stage, the chrome-plated piston rod must be repaired due to material problems, bumps during the transfer process, abrasion, surface cracks, etc., which do not affect the overall quality. According to the defect, the argon arc welding or cold welding machine can be used for repair welding, and the outer circle is smooth, the emery paper is polished or partially repaired by brush plating.www.xhychromerod.com