Method for preparing solid lubrication film on space vehicle movable part

A space vehicle and solid lubrication technology, applied in the direction of liquid cleaning methods, chemical instruments and methods, cleaning methods and utensils, etc., can solve the problems of harsh storage and assembly conditions, high humidity environment failure, low surface hardness, etc., to achieve Enhance environmental adaptability, good applicability, and improve moisture-proof performance

Inactive Publication Date: 2008-09-24
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of this lubricating film system in use: ① Poor moisture resistance in the atmosphere, it will quickly fail in a high-humidity environment, resulting in harsh storage and assembly conditions; ② Soft lubricating film, low surface hardness, short wear life and other defects; It is imperative to develop a lubricating film system with better performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Clean the workpiece to be coated with solution. First, use petroleum ether solution for ultrasonic cleaning for 5 minutes, then use acetone solution for ultrasonic cleaning for 5 minutes, and finally use absolute ethanol solution for ultrasonic cleaning for 5 minutes.

[0019] (2) Put the workpiece into the deposition chamber, introduce Ar, and glow discharge. During the discharge process, the current of the unbalanced coil is controlled at 3A, the bias voltage of the workpiece table is 600V, and the flow rate of the working gas is 700sccm to ensure that the glow discharge is at 130℃~140℃ next.

[0020] (3) After the glow discharge is completed, the workpiece is plated with an intermediate layer process, the titanium target is powered, and the titanium atoms are sputtered from the titanium target and deposited on the surface of the workpiece. The deposition time is 10 minutes, and the deposition thickness is 300nm. The titanium target The power is 3Kw, the bias volt...

Embodiment 2

[0023] (1) Clean the workpiece to be coated with solution. First, use petroleum ether solution for ultrasonic cleaning for 5 minutes, then use acetone solution for ultrasonic cleaning for 5 minutes, and finally use absolute ethanol solution for ultrasonic cleaning for 5 minutes.

[0024] (2) Put the workpiece into the deposition chamber, introduce Ar, and glow discharge. During the discharge process, the current of the unbalanced coil is controlled at 3A, the bias voltage of the workpiece table is 700V, and the flow rate of the working gas is 800sccm to ensure that the glow discharge is at 130℃~140℃ next.

[0025] (3) After the glow discharge is completed, the workpiece is plated with an intermediate layer process, the titanium target is powered, and the titanium atoms are sputtered from the titanium target and deposited on the surface of the workpiece. The deposition time is 15min, and the deposition thickness is 300nm. The titanium target The power is 4Kw, and the working ga...

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PUM

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Abstract

The invention discloses a preparation method for a solid lubricating film on a movable piece of a space aerocraft which includes four steps of chemical washing, surface activating, mesosphere plating and solid lubricating film depositing on a workpiece; the method forms the solid lubricating film through depositing a Ti mesosphere on the surface of the workpiece and then simultaneously depositing MoS2 and Ti on the mesosphere. The method changes a film structure, leads the film to be compacter, improves the film intensity, enhances the tribology performance of the film and improves the moisture resistance of the film; the whole film layer is a saturated solid solution formed by the nanometer crystal of MoS2 and Ti; the bonding force between a retia and a base is high, the intensity is high and very compact, thus greatly improving the moisture resistance life of the lubricating film. The compact film layer effectively blocks the oxidation reaction between the water and oxygen in the atmosphere with MoS2.

Description

technical field [0001] The invention relates to a lubrication technology for space vehicle movable parts, in particular to a preparation method of a solid lubricating film on a space vehicle mobile part. Background technique [0002] MoS 2 The base lubricating film has been the main lubricating film system for surface modification of star moving parts due to its outstanding anti-friction effect and excellent vacuum performance. Due to the existence of this lubricating film system in use: ① Poor moisture resistance in the atmosphere, it will quickly fail in a high-humidity environment, resulting in harsh storage and assembly conditions; ② Soft lubricating film, low surface hardness, short wear life and other defects; It is imperative to develop a lubricating film system with better performance. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a solid lubricating film on a space vehicle movable part for the defici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/34C23C14/06C23C14/56C23C14/02C23G5/02B08B3/12
Inventor 周晖温庆平
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
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