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Ceramic surface coating method

A ceramic surface and ceramic material technology, applied in the field of ceramic surface coating, can solve the problems of poor bonding between the intermediate metal layer and the ceramic surface substrate, affecting product performance, and easily destroying the quality of the coating, so as to achieve a wide coating process range and production efficiency. High and low cost effect

Active Publication Date: 2016-10-12
福建省德化新吉利工艺有限公司
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Problems solved by technology

However, when the surface of some ceramic materials is rough, the bonding force between the pre-plated intermediate metal layer and the ceramic surface substrate is not good, and in the process of coating, because the impurities in the gas in the coating environment will affect the quality of the coating, the high temperature environment is easy. Destroy the quality of the coating, thereby affecting the performance of the product

Method used

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Examples

Experimental program
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Embodiment Construction

[0015] A ceramic surface coating method, comprising the following steps:

[0016] (1) First wipe the surface of the ceramic material with a paper towel to remove grease and dust, then use gas gas as the combustion gas, spray flames with a flame spray gun to contact the surface of the ceramic material for 10-35 seconds, so that the instantaneous temperature of the surface of the ceramic material reaches a high temperature of 800 °C , so as to remove the unwiped grease on the surface, and remove the unwiped dust adsorbed on the surface of the ceramic material and the particles produced by flame combustion through electrostatic dust removal;

[0017] (2) Take the evaporation equipment and vacuumize the evaporation chamber to 2.0×10 -8 Torr, adjust the temperature in the evaporation chamber to 110°C for baking, and increase the pressure in the evaporation chamber to 2.5×10 -7 After Torr, bake the cavity for 15 hours until the air pressure in the cavity returns to 2.2×10 -8 Turn ...

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Abstract

The invention discloses a ceramic surface coating method. The ceramic surface coating method comprises the following steps: wiping the surface of a ceramic material with facial tissue to remove oil grease and dust; jetting flame towards the surface of the ceramic material with a flame jetting gun for 10-35 seconds by taking methane gas as combustion gas. According to the method, the bonding firmness between a coating layer and the ceramic material is measured according to a national standard GB / T5270-200X; the coated surface has high luster durability, is smooth, is free from pin holes, wrapping and bubbling, and has uniform color and brightness; the method is simple in process.

Description

technical field [0001] The invention belongs to the field of ceramic coating, and in particular relates to a ceramic surface coating method. Background technique [0002] In recent years, the rapid development of coating technology has put forward higher requirements for ceramics, that is, ceramic materials should not only have high bending strength, high hardness and toughness, but also low friction coefficient and good wear resistance. It is difficult for advanced ceramic materials to fully possess these characteristics. In the existing technology, an intermediate metal layer is usually pre-plated on the ceramic surface, and then electroplating is performed on the basis of the intermediate metal layer. However, when the surface of some ceramic materials is rough, the bonding force between the pre-plated intermediate metal layer and the ceramic surface substrate is not good, and in the process of coating, because the impurities in the gas in the coating environment will af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/88
CPCC04B41/009C04B41/5127C04B41/5133C04B41/5144C04B41/88C04B35/10
Inventor 刘和来
Owner 福建省德化新吉利工艺有限公司
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