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Method for roughening substrate, method for surface-treating substrate, method for producing spray-coated member, and spray-coated member

一种表面粗化、表面处理的技术，应用在基材的表面粗化、基材的表面处理、喷涂覆膜被覆部件及其制造领域，能够解决残留物密合性下降等问题，达到优异密合性、密合性高、抑制强度下降的效果

Active Publication Date: 2018-01-02
TOCALO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] If the surface is roughened by laser, problems such as residues generated during blasting and reduced adhesion will disappear

Method used

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  • Method for roughening substrate, method for surface-treating substrate, method for producing spray-coated member, and spray-coated member
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  • Method for roughening substrate, method for surface-treating substrate, method for producing spray-coated member, and spray-coated member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0104] Examples 1-8: Obtained a good rough surface with an oxide film formed.

Embodiment 12

[0119] In Example 12, after the surface roughening treatment was performed by laser irradiation, the surface roughening treatment surface was further oxidized by heat treatment before the coating of the spray coating was formed, and the adhesion and bending strength were improved. On the other hand, in Comparative Example 11, after the surface roughening treatment by spraying, the surface roughening treatment surface was oxidized by heat treatment before the spray coating was formed, and the bending strength was slightly improved but still insufficient. In addition, as for the adhesion, since the surface roughening treatment was performed by the blasting treatment so as not to damage the base material, unevenness was not formed, and good adhesion was not obtained.

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Abstract

A ceramic substrate (2) is irradiated in atmospheric air by a laser having a power density of 1.0 * 107-109 W / cm2, in which the duration of action on an irradiation position is set to 1.0 * 10-7-10-5,the surface of the ceramic substrate (2) is roughened, and an oxide film 3 is formed on the roughened surface (2a). This yields high adhesiveness to a spray coating, formed on the ceramic substrate (2), due to the action of chemical affinity in addition to the physical adhesive force of the roughened surface (2a), without causing any great reduction in substrate strength.

Description

technical field [0001] The present invention relates to a method for roughening the surface of a base material by laser processing, a method for surface treating a base material whose surface has been roughened by laser processing, and a substrate whose surface has been roughened by laser processing by sprayed coating. A method of manufacturing a spray-coated member whose surface is covered with a substrate, and a spray-coated member. Background technique [0002] In order to improve the wear resistance of members, etc., various methods of forming spray coatings on the surface of structural members are widely used. The spraying method is to supply ceramics, metals, cermets and other spray powders to the combustion flame of combustible gas or Ar, He, H 2 In a plasma flame such as , the spray powder is softened or melted, and sprayed onto the surface of the object to be sprayed at high speed, thereby applying a spray coating on the surface of the object to be sprayed. Surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/02B23K26/00B23K26/352B32B18/00
CPCB23K26/00B23K26/352C23C8/02C23C8/10C23C8/80C23C28/04C23C4/02B23K2103/52C23C4/134
Inventor 横田博纪川井大辅水津龙夫
Owner TOCALO CO LTD
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