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A kind of solid antibacterial hard coating of space mechanism component and preparation method thereof

A technology of mechanical parts and hard film layers, which is applied in the field of solid antibacterial hard coating products of space mechanism parts and its preparation, can solve the problems of high brittleness and low bonding strength, achieve easy regulation, improve coating bonding force, The effect of good application prospects

Active Publication Date: 2020-07-17
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ti-N coating is relatively stable in a wide composition range and has high hardness. It is one of the earliest hard coatings studied and applied. A single Ti-N coating has low bonding strength and high brittleness.

Method used

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  • A kind of solid antibacterial hard coating of space mechanism component and preparation method thereof
  • A kind of solid antibacterial hard coating of space mechanism component and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The structural representation of the antibacterial hard coating product prepared by the present invention, see figure 1 ; Wherein 1-substrate, 2-bonding layer (Ti), 3-transition layer (TiN), 4-functional layer (TiAlZrN-Ag).

[0026] The closed-field unbalanced magnetron sputtering equipment structure schematic diagram adopted in the reactive magnetron sputtering technology of the present invention, see figure 2 ; Wherein 1-Al target, 2-Ti target, 3-Ag target, 4-Zr target, 5-plated piece platform.

[0027] The solid antibacterial hard coating product for space mechanism components includes a Ti / TiN / (TiAlZrN-Ag) nanocomposite multilayer film with a substrate of TC4 titanium alloy and a thickness of 2 μm. The thickness of the bonding layer is 50nm, the thickness of the transition layer is 200nm, and the thickness of the functional layer is 1.75μm.

[0028] The preparation method of the solid antibacterial hard coating product of the space mechanism component is as follo...

Embodiment 2

[0037] The difference between Implementation 2 and Example 1 is that the Al and Zr target currents in step 4 in Example 1 are adjusted to 0.5A, the Ag target currents are adjusted to 0.8A, and the preparation time of the TiAlZrN-Ag film layer is shortened to 1.5h, keeping The total thickness of the film layer is consistent, and other steps are the same as in Example 1.

[0038] The structural representation of the antibacterial hard coating product prepared by the present invention, see figure 1 ; Wherein 1-substrate, 2-bonding layer (Ti), 3-transition layer (TiN), 4-functional layer (TiAlZrN-Ag).

[0039] The closed-field unbalanced magnetron sputtering equipment structure schematic diagram adopted in the reactive magnetron sputtering technology of the present invention, see figure 2 ; Wherein 1-Al target, 2-Ti target, 3-Ag target, 4-Zr target, 5-plated piece platform.

[0040] The solid antibacterial hard coating product for space mechanism components includes a Ti / TiN / (T...

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Abstract

The invention relates to the technical field of material surface vacuum coating, in particular to a solid antibacterial hard coating of a space mechanism part and a preparation method of the solid antibacterial hard coating. The closed field non-equilibrium anti-magnetron sputtering technology is used for deposition of a nanocrystal composite coating composed of a bonding layer (Ti), a transitionlayer (TiN) and a functional layer (TiAlZrN-Ag) on titanium alloy, aluminum alloy, stainless steel and bearing steel substrate sequentially. The prepared nanocrystal composite coating can reliably serve in the space environment, is high in adhesion and high in surface hardness, can effectively lower mechanical abrasion of the space mechanism part, has good antibacterial performance and mildew resistance, can reduce the growth of microorganisms, can greatly prolong the service life of moving parts of a space vehicle, and can improve reliability of the moving parts.

Description

technical field [0001] The invention relates to the technical field of vacuum coating on the surface of materials, in particular to a solid antibacterial hard coating product of a space mechanism component and a preparation method thereof. Background technique [0002] With the continuous development of my country's aerospace industry, the requirements for space agency components have already exceeded the performance range that a single material can achieve. For example, for common gears and bearings, it is first required to have a certain toughness to support and buffer the force; secondly, the surface of the component must have sufficient wear resistance and fatigue resistance, which requires the core of the part to be tough , and the surface is a hard, wear-resistant material. The good environment created by the manned space station for the long-term stay of astronauts also provides favorable conditions for the growth of microorganisms. Fungi and mold will corrode and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/16C23C14/06
CPCC23C14/0036C23C14/0641C23C14/0688C23C14/165C23C14/345C23C14/352
Inventor 鞠鹏飞李忠建李辰旸刘明芳曹晓苏培博周宏
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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