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Lubricating film and its preparation method and application

A lubricating film and metal substrate technology, applied in metal material coating process, vacuum evaporation plating, coating, etc., can solve problems such as limited application and low bonding strength

Active Publication Date: 2021-10-26
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high internal stress and low bonding strength between the DLC film and the metal substrate limit its application in the marine environment.

Method used

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  • Lubricating film and its preparation method and application
  • Lubricating film and its preparation method and application
  • Lubricating film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Stainless steel substrate surface treatment

[0042] S1. Place a stainless steel substrate having a thickness of 2 mm in a magnetron sputtering gas phase deposition vacuum system, argon plasma sputter cleaning, argon gas flow rate of 100 Sccm, substrate bias is -1000 V, treatment time is 30 min;

[0043] S2. The magnetron sputter deposition thickness is 0.2 μm Ti adhesive layer: the metal Ti target is a cathode, the working gas is argon, the power supply is 200W, the bias voltage is 30 min;

[0044] S3. Magnetron sputter deposition thickness is a surface layer of 0.5 μm metal nanocrystallization in amorphous matrix diamond carbon: During deposition, the vacuum of the vacuum chamber is 2 × 10 -3 PA, the discharge pressure is 3 Pa. AR gas and methane mixed atmosphere, the AR gas flow was 50 sccm, and the methane flow was 12 to 18 sccm. High pure metal Cu target and high pure MOS 2 Composite target is a cathode, MOS 2 The power of the target is 160W, the power of the Cu target...

Embodiment 2

[0046] Unlike Example 1, the surface layer of the magnetron sputter deposition thickness is 0.5 μm metal nanocrystallization in the amorphous matrix diamond carbon. The metal substrate used is a Cu-Ni-P-based low alloy steel substrate.

Embodiment 3

[0048] Unlike Example 1, the surface layer of the magnetron sputter deposited thickness of 3.5 μm in the metallic nanocrystallization in the amorphous matrix diamond carbon. The metal substrate used is a Cu-Cr-P-based low alloy steel substrate.

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Abstract

The invention provides a lubricating film, which is used on the surface of a metal substrate, and is characterized in that it includes a metal bonding layer attached to the surface of the metal substrate, and the outer side of the metal bonding layer is metal nanocrystals embedded in an amorphous matrix in the surface layer. This kind of lubricating film can obtain high toughness, low friction, high wear resistance, high corrosion resistance and high antifouling performance on the surface of corrosion-resistant metal workpieces, thereby effectively prolonging the service life of moving parts of ship machinery in marine environments and reducing the cost of equipment structures. damage.

Description

Technical field [0001] The present invention relates to the field of surface treatment, and more particularly to a lubricating film and a preparation method thereof, a use. Background technique [0002] Nearly some ship mechanical systems such as piston pumps, gears, propellers, valves, bearings and hydraulic systems, etc. must be run directly in the seawater environment. These functional moving parts are except for a certain friction loss, and the CL exists in the sea water. - O 2 H 2 O et al. To produce severe electrochemical corrosion of these functional moving parts, in addition, the adhesion and accumulation of marine microorganisms in seawater also affect the corrosive behavior mechanism of moving parts, and enhance the surface friction and wear of the part. Resulting in damage to the structure of the ship, shorten its life or even serious disasters. Therefore, the safety, stability and service life of these ship mechanical moving parts depends to a large extent on friction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/02C23C14/06C23C14/16C23C14/35
CPCC23C14/0036C23C14/022C23C14/025C23C14/0605C23C14/0623C23C14/165C23C14/352
Inventor 王永欣张景文周升国鲁侠王春婷李金龙王立平
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI