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Decorative protective coating and synthetic method thereof

A technology of protective coating and synthesis method, which is applied in the direction of coating, metal material coating process, ion implantation plating, etc., can solve the problems of high difficulty in consistency, large color difference, complicated process, etc., and achieve simple control, color difference Small, reproducible effect

Inactive Publication Date: 2008-11-05
BEIJING POWERTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The manufacturing method of this patent cannot obtain black coating
The patent coating is divided into three layers: bottom layer, wear-resistant layer and decorative coating. There are insufficient surface hardness and scratch resistance of the film layer, complex process and high difficulty in maintaining its consistency, and inconsistencies in the film layer. , large color difference and other outstanding problems, and the environmental pollution caused by a large number of wet plating and the bonding force with the subsequent vapor deposition layer are relatively difficult to solve, which restricts the production and application of this type of decorative protective coating

Method used

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  • Decorative protective coating and synthetic method thereof
  • Decorative protective coating and synthetic method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: vapor deposition black hard decorative protective coating silicon-carbon-nitrogen

[0014] The chemical composition, color and performance of the silicon-carbon-nitrogen coating can be effectively controlled by the power of the sputtering power supply and the flow rate of the reactive gas. Some of the test results are shown in Table 1.

[0015] Table 1 Silicon-carbon-nitrogen coating chemical composition (at%) and performance test results*

[0016]

[0017] * Note: When using a microhardness tester, load 0.02kg, hold time for 30s, and test the average hardness of different parts 5 times.

[0018] In the SP0811SI vapor deposition equipment, two rectangular silicon targets are used, and the turret is still; the reaction gas is nitrogen and CH4; the deposition temperature is about 250°C; by adjusting the silicon target intermediate frequency magnetron sputtering power (5-25kW ), and adjust the reaction gas (N 2 and CH 4 or C 2 h 2 etc.) traffic (e.g. ...

Embodiment 2

[0026] Embodiment 2: Vapor deposition black hard protective coating titanium-silicon-carbon-nitrogen

[0027] The chemical composition, color and performance of the titanium-silicon-carbon-nitrogen coating can be effectively controlled by the power of the sputtering power supply and the flow rate of the reactive gas. Some test results are shown in Table 2.

[0028] Table 2 Titanium-silicon-carbon-nitrogen coating chemical composition (at%) and performance test results**

[0029]

[0030] **Note: The serial numbers in this table are 13, 16, 17, and 18, which are optimized experiments; when testing with MH-5 microhardness tester, load 0.02kg, hold time for 5s, and test the average hardness of different parts for 5 times , 6 heats are randomly sampled, three different points are taken for each sample, the hardness of each point is measured three times, and the average value is taken as the hardness value of the point, and the average value of the hardness values ​​of the three...

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Abstract

The invention discloses a decorative and protective coating that can be used for a electronic product and / or a metal shell. The coating is black in color and is mainly composed of three elements: silicon, carbon and nitrogen or four elements: titanium, silicon, carbon and nitrogen. The atomic percentage is respectively: 35-43% of silicon, 20-27% of carbon, 45-30% of nitrogen or 15-27% of titanium, 40-30% of silicon, 25-13% of carbon and 20-30% of nitrogen; the coating thickness is 1.0-8.0Mum; the microhardness HV(0.020) of the coating with the thickness being more than 2.0Mum is greater than or equal to 30 Gpa. The coating can be synthesized by a low-pressure vapor deposition method, the sputtering or arc ion plating method can be adopted to obtain the ingredients with the corresponding ratio, a mass flowmeter can be used for regulating the flow of the reactant gases to control the relative content of the nitrogen and / or carbon so as to obtain a black silicon- carbon- nitrogen or titanium- silicon- carbon- nitrogen coating and in this way the color and the performance of the coating can be controlled. The coating has high rigidity, strong color alternation resistance and good decorative and protective capacity.

Description

technical field [0001] The invention relates to a decorative and protective coating and a synthesis method thereof, in particular to a black or similarly colored hard decorative protective coating and a synthesis method thereof. Background technique [0002] As an elegant and popular color, black and its similar colors have gradually attracted the attention of the fields of daily electronic products, mechanical products, mobile phones, watches and vacuum coating. However, in the existing colored films, there are outstanding problems such as low hardness of the film layer, weak scratch resistance, poor process repeatability and discoloration of the film layer, which restrict the production and application of this type of decorative protective coating. [0003] For example, the date of application is March 11, 2003, the application number is 03113917.5, and the name is called "a multi-arc ion coating method for ceramic products". The method is carried out in an arc ion vacuum ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/85C04B41/89C03C17/22C03C17/34C23C14/16C23C14/14
Inventor 刘阳
Owner BEIJING POWERTECH
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