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A method for preparing black tungsten carbide composite coating by physical vapor deposition

A technology of physical vapor deposition and composite coating, which is applied in the field of PVD black technology, can solve the problems of poor corrosion resistance, poor process stability, and low hardness, and achieve strong corrosion resistance, extended daily use, and good oxidation resistance.

Active Publication Date: 2020-02-18
广东精研科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It should be further pointed out that for the traditional PVD black process, it has the defects of low hardness, poor corrosion resistance, non-wear resistance, and poor process stability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be described below in conjunction with specific embodiments.

[0033] A method for preparing a black tungsten carbide composite coating by physical vapor deposition, comprising the following process steps, specifically:

[0034] a. Degreasing and cleaning:

[0035] a1. Place the product to be processed in a general degreasing and cleaning solution for soaking and cleaning;

[0036] a2. Put the product soaked and cleaned in the general degreasing cleaning agent in alcohol for ultrasonic cleaning treatment, and the time for ultrasonic cleaning treatment is 3-8 minutes;

[0037] a3. Put the product after ultrasonic cleaning treatment into ultrapure water for slow dehydration treatment, and the ultrapure water is 100°C hot water;

[0038] a4. Put the product after ultra-pure water dehydration treatment in an oven for baking. The oven uses 110-180°C circulating air for baking, and the baking time is 30-50 minutes; the product is placed in the ove...

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PUM

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Abstract

The invention discloses a method for preparing a black tungsten carbide composite coating through a physical vapor deposition method. The method comprises the following steps of oil removal and cleaning, bottom layer preparation, transition buffering layer preparation, hardening wear-resistant film layer preparation, color layer preparation and cooling and discharging, wherein the oil removal andcleaning step comprises the following steps of carrying out soaking and cleaning in a common oil removal and cleaning agent solution, carrying out ultrasonic cleaning in alcohol, carrying out slowly pulling and dehydrating in ultrapure water with the temperature of 100 DEG C and carrying out baking. According to the step design of the process, the black tungsten carbide composite coating preparedthrough the method for preparing the black tungsten carbide composite coating through the physical vapor deposition method has the advantages of being high in corrosion resistance and good in anti-oxidation property, and capable of well meeting the daily use of products and prolonging the service lift of the products.

Description

technical field [0001] The invention relates to the technical field of PVD black technology, in particular to a method for preparing a black tungsten carbide composite coating by a physical vapor deposition method. Background technique [0002] At present, with the rapid development of various electronic products and fierce competition, consumers not only require high-quality and durable products, but also have a particularly strong demand for high-end fashion, colorful and eye-catching appearance. [0003] It should be further pointed out that for the traditional PVD black process, it has the defects of low hardness, poor corrosion resistance, non-abrasion resistance, and poor process stability. Therefore, it is necessary to improve the existing PVD black process. Contents of the invention [0004] The object of the present invention is to provide a method for preparing a black tungsten carbide composite coating by physical vapor deposition in view of the deficiencies in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/06C23C14/14C23C14/16C23C14/32C23C14/02
CPCC23C14/0015C23C14/0021C23C14/021C23C14/0635C23C14/14C23C14/16C23C14/325
Inventor 施正彪李煜
Owner 广东精研科技发展有限公司