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

A technology of pneumatic actuators and guide rods, applied in metal material coating process, engine components, valve operation/release devices, etc., can solve the problem of thinness, generally only 0.05-0.15mm, and high requirements on the surface finish of parts and components , Affect the wear resistance and corrosion resistance of materials and other issues, achieve excellent wear resistance, good economic benefits and commercial prospects, and improve the effect of surface density

Active Publication Date: 2020-12-18
SUZHOU RUILINGKE INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hard chromium plating process is expensive, not only the cost of plating is high, but also reprocessing after plating; the thickness of the coating is too thin, generally only about 0.05-0.15mm, which affects the wear resistance and corrosion resistance of the material; the lubricity of the coating Limited, poor self-lubricating effect; In addition, the hard chromium plating process also requires a higher degree of surface finish

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of a low-wear guide rod for pneumatic actuator application specifically includes the following steps: step (1), providing a carbon steel substrate for the guide rod, grinding its surface, and placing the polished carbon steel substrate on In the acid solution containing 1mol / L of sulfuric acid and 0.5mol / L of hydrofluoric acid, fully wash and take out and then wash and dry to obtain the pretreated substrate; step (2), utilize the Hall gas ion source to The base material is bombarded with helium to strengthen the surface of the base material. The Hall source operating voltage is 1000V, the bombardment ambient temperature is 700°C, and the bombardment time is 2h; step (3), use Nd:YAG pulsed laser drill in step (2) to process After the surface of the base material is rounded, the aperture is 0.06-0.1mm, and the area ratio is 10%-25%, so as to obtain a surface-textured base material; step (4), using magnetic filtration deposition technology on the surface-tex...

Embodiment 2

[0029] The preparation of a low-wear guide rod for pneumatic actuator application specifically includes the following steps: step (1), providing a carbon steel substrate for the guide rod, grinding its surface, and placing the polished carbon steel substrate on In the acid solution containing 1mol / L of sulfuric acid and 0.5mol / L of hydrofluoric acid, fully wash and take out and then wash and dry to obtain the pretreated substrate; step (2), utilize the Hall gas ion source to process the pretreated The base material was bombarded with helium to strengthen the surface of the base material. The Hall source operating voltage was 1000V, the bombardment ambient temperature was 700°C, and the bombardment time was 2h; in step (3), a Nd:YAG pulsed laser drill was used in step (2) Punch circular holes on the surface of the treated substrate, the aperture is 0.06-0.1mm, and the area ratio is 10%-25%, to obtain a surface-textured substrate; step (4), using magnetic filtration deposition te...

Embodiment 3

[0031] The preparation of a low-wear guide rod for pneumatic actuator application specifically includes the following steps: step (1), providing a carbon steel substrate for the guide rod, grinding its surface, and placing the polished carbon steel substrate on In the acidic solution containing 1mol / L of sulfuric acid and 0.5mol / L of hydrofluoric acid, fully wash and take out and then wash and dry to obtain the pretreated substrate; step (2), utilize the Hall gas ion source to process the pretreated The base material was bombarded with helium to strengthen the surface of the base material. The Hall source operating voltage was 1000V, the bombardment ambient temperature was 700°C, and the bombardment time was 2h; in step (3), a Nd:YAG pulsed laser drill was used in step (2) Punch circular holes on the surface of the treated substrate, the aperture is 0.06-0.1mm, and the area ratio is 10%-25%, to obtain a surface-textured substrate; step (4), using magnetic filtration deposition ...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/02C23C14/32C23C14/06F16K31/12
CPCC23C14/022C23C14/0623C23C14/0641C23C14/325F16K31/12
Inventor 陈荣琴
Owner SUZHOU RUILINGKE INFORMATION TECH CO LTD
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