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A kind of ultra-black wear-resistant coating and preparation method thereof

A manufacturing method and technology of wear-resistant coating, applied in the direction of coating, metal material coating process, vacuum evaporation plating, etc., can solve the problems of black color and wear-resistant performance that cannot meet high requirements, and achieve low cost , Hardness and wear resistance improvement, the effect of high wear resistance

Active Publication Date: 2021-02-19
SHENZHEN SENFUNG VACUUM PLATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional black coating uses tungsten carbide, chromium carbide, titanium carbide and other coating materials, but it cannot meet the higher requirements in terms of black color and wear resistance

Method used

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  • A kind of ultra-black wear-resistant coating and preparation method thereof
  • A kind of ultra-black wear-resistant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. The base material is ultrasonically cleaned, heated and vacuumed in the coating chamber, and the holding temperature is 200-230°C;

[0048] 2. The vacuum reaches 6.0*10-3~8.0*10-3Pa, and Ar gas is introduced to make the air pressure reach 0.1~0.2Pa, the bias voltage is -300~-400V, and ion cleaning is performed for 1~3 circles.

[0049] 3. Adjust the Ar gas intake to make the air pressure reach 0.3-0.4Pa, set the bias voltage to -50--100V, turn on the intermediate frequency coating power supply current to deposit pure Ti layer, and the titanium target current is 28-32A.

[0050] 4. Introduce N2 gas, the amount of N2 increases from 30sccm to 200sccm, the air pressure is 0.30~0.50Pa, and the Ti, Al, Si and W targets are turned on at the same time, and the target currents are respectively Ti=28~32A, Al=13~17A, Si =12~18A, W=3~7A, deposit WTiAlSiN layer for 30~40 minutes.

[0051] 5. Introduce N2 gas, the amount of N2 increases from 100sccm to 200sccm, the pressure is 0....

Embodiment 2

[0055] 1. The base material is ultrasonically cleaned, heated and evacuated in the coating chamber, and the heat preservation temperature is 210°C;

[0056] 2. The vacuum reaches 6.0*10-3~8.0*10-3Pa, and Ar gas is introduced to make the air pressure reach 0.1~0.2Pa, the bias voltage is -300~-400V, and ion cleaning is performed for 1~3 circles.

[0057] 3. Adjust the Ar gas intake to make the air pressure reach 0.3-0.4Pa, set the bias voltage to -50--100V, turn on the Ti target, and deposit a pure Ti layer.

[0058] 4. Infuse N2 gas, the pressure is 0.30-0.40Pa, open the Ti, Al, Si and W targets at the same time, and deposit the WTiAlSiN layer for 30 minutes.

[0059] 5. Infuse N2 gas, adjust the gas pressure to 0.4-0.5 Pa, open the Ti, Al, Si and W targets at the same time, and deposit the WTiAlSiN layer for 65 minutes.

[0060] 6. Turn off the TiAlSi target, turn off N2, fill in C2H2, the air pressure is 0.3pa, and turn on the W target at the same time, deposit the WC layer,...

Embodiment 3

[0062] 1. The base material is ultrasonically cleaned, heated and evacuated in the coating chamber, and the heat preservation temperature is 210°C;

[0063] 2. The vacuum reaches 6.0*10-3~8.0*10-3Pa, and Ar gas is introduced to make the air pressure reach 0.1~0.2Pa, the bias voltage is -300~-400V, and ion cleaning is performed for 1~3 circles.

[0064] 3. Adjust the Ar gas intake to make the air pressure reach 0.3-0.4Pa, set the bias voltage to -50--100V, turn on the Ti target, and deposit a pure Ti layer.

[0065] 4. Infuse N2 gas, adjust the air pressure to 0.30-0.40Pa, open the Ti, Al, Si and W targets at the same time, and deposit the WTiAlSiN layer for 35 minutes.

[0066] 5. Infuse N2 gas, adjust the gas pressure to 0.4-0.5 Pa, open the Ti, Al, Si and W targets at the same time, and deposit the WTiAlSiN layer for 70 minutes.

[0067] 6. Turn off the TiAlSi target, turn off N2, fill in C2H2, the air pressure is 0.4pa, turn on the W target at the same time, deposit the WC...

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Abstract

The invention discloses an ultra-black wear-resistant coating. The coating is characterized by sequentially depositing a Ti layer, a first WTiAlSiN layer, a second WTiAlSiN layer and a WC layer from inside to outside on the surface of a base material; according to a multilayer film structure, the lowermost layer is a pure Ti layer formed by a Ti target, the middle two layers are a transition layerand a functional layer which are formed by nitrogen doping of four mixed targets of WTiAlSiN, and the surface is covered by the color of the WC layer formed by doping the acetylene with a W target; and compared with a traditional black coating, the coating with the four-layer structure has the advantages that the color is ultra-black, the hardness and the wear resistance are greatly improved, theultra-black and high-wear-resistance performance of the coating is remarkably superior to that of an existing coating. The coating is simple in preparation process and low in cost. The coating and the preparation process thereof are especially suitable for coating applications such as clocks, and 3C electronic product shells.

Description

technical field [0001] The invention relates to a manufacturing process of a black coating, in particular to an ultra-black wear-resistant coating and a manufacturing method thereof. Background technique [0002] The traditional black coating uses tungsten carbide, chromium carbide, titanium carbide and other coating materials, but it cannot meet the higher requirements in terms of black color and wear resistance. How to improve the color and wear resistance of the black coating to obtain a super black and high wear resistance coating is a problem faced by the prior art. Contents of the invention [0003] The main purpose of the present invention is to overcome the deficiencies of the prior art and provide an ultra-black wear-resistant coating and a manufacturing method thereof. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] An ultra-black wear-resistant coating, comprising a Ti layer, a first WtiAlSiN layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/14C23C14/06
CPCC23C14/0015C23C14/0057C23C14/0635C23C14/0641C23C14/14C23C14/352
Inventor 赵明华洪胜武俊伟汪选林
Owner SHENZHEN SENFUNG VACUUM PLATING
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