A low-wear guide rod for pneumatic actuator application and its surface technology

Abstract

The invention discloses a low-abrasion guide rod applied to pneumatic actuators and a surface process thereof. The surface process comprises the following steps that (1) a carbon steel base material of the guide rod is provided, the surface of the carbon steel base material is polished, and the carbon steel base material of the guide rod placed in an acidic solution, after the carbon steel base material is washed, and then washing and drying are carried out; step (2), a Hall gas ion source is used to perform gas bombardment on the pretreated base material to strengthen the surface of the basematerial; step (3), an Nd: YAG pulse laser puncher is used for punching a circular hole on the surface of the base material; and (4) ZrB2 target and MoS2 target are separately deposited on the surfaceof the base material by magnetic filtration deposition technology to form a solid coating, the surface of the base material is coated with solid coating, and the guide rod is obtained after surface process treatment. The guide rod applied to the pneumatic actuators application has excellent abrasion resistance, excellent corrosion resistance, self-lubricating property and good hardness.

Description

technical field

[0001] The invention relates to the technical field of guide rod materials used in pneumatic actuators, in particular to a low-wear guide rod used in pneumatic actuators and its surface technology. Background technique

[0002] Actuators can be divided into three categories: pneumatic, electric and hydraulic according to the energy they use. Actuators powered by compressed air are called pneumatic actuators, which have the advantages of simple structure, reliable action, stable performance, large output force, convenient maintenance, and fire and explosion protection. It can not only be used in conjunction with the combination instrument of the pneumatic unit, but also can be used in conjunction with the electric combination instrument and the computer through the electric-pneumatic converter or the electric-pneumatic valve positioner. Therefore, it is widely used in industrial control processes such as chemical industry, petroleum, metallurgy, and electric ...