Titanium alloy surface chemical coarsening method

A chemical roughening and titanium alloy technology, which is applied in the field of metal surface treatment, can solve the problems of unusable and only applicable processing methods, and achieve the effects of increased hydrogen content, simple operation, and improved bonding strength

Inactive Publication Date: 2021-09-07
北京缔诚科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because it is necessary to provide a working space for the processing equipment during the processing, and some processing methods are only applicable to the processing plane or require vacuum environment processing.
At the same time, physical processing methods often generate additional stress on parts, and parts with strict requirements on deformation rate or parts processed on one side are usually not available

Method used

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  • Titanium alloy surface chemical coarsening method
  • Titanium alloy surface chemical coarsening method
  • Titanium alloy surface chemical coarsening method

Examples

Experimental program
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Embodiment

[0035] The process parameters of Examples 1 to 5 are shown in Table 1. The wetting agent used in Examples 1 to 5 consists of carboxylic acid-based anionic fluorocarbon surfactant FSA, nonionic surfactant AEO and dodecyldimethylamine It is compounded with hydantoin BS-12, carboxylic anionic fluorocarbon surfactant FSA belongs to fluorocarbon surfactant, nonionic surfactant AEO belongs to fatty alcohol polyoxyethylene ether; BS-12 belongs to sugar beet Alkaline surfactants. Oxidant and corrosive agent all adopt H respectively in embodiment 1~3 2 o 2 and ammonium fluoride, oxidant and corrosive agent adopt nitrate and ammonium bifluoride respectively in embodiment 4, oxidant and corrosive agent adopt HNO respectively in embodiment 5 3 and hydrofluoric acid. The surface roughness of the titanium alloy after treatment is shown in Table 2, and the photo of the surface topography is shown in Figure 4-8 . The surface roughness is tested by Mitutoyo SURFTEST SJ410 testing equipme...

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Abstract

The invention discloses a titanium alloy surface chemical coarsening method. The titanium alloy surface chemical coarsening method comprises the steps that the titanium alloy surface is sequentially subjected to oil removal, water washing, chemical coarsening, water washing and drying; the chemical coarsening is carried out by adopting a coarsening solution at the temperature of 10-50 DEG C; the coarsening solution is formed by compounding an oxidizing agent, a corrosive agent containing F <-> and a wetting agent, and the mass concentration of the oxidizing agent in the coarsening solution is 10%-60%, the mass concentration of the F <-> in the coarsening solution is 2%-10%, and the mass concentration of the wetting agent in the coarsening solution is 3%-8%.The method is easy to operate and high in machining efficiency, and extra stress cannot be generated on a part.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a method for chemically roughening the surface of a titanium alloy. Background technique [0002] Metal surface roughening process is a common surface treatment process, which is a commonly used method in matting, improving the bonding force of paint or coating, increasing the bonding strength, and decoration. The traditional surface roughening process can be divided into physical means and chemical means. Physical means generally include sandpaper, water sandpaper grinding, sandblasting, electroetching, laser etching, plasma etching, etc. Chemical means include chemical etching, electrolytic corrosion, etc. Physical means usually have certain requirements on the structural size of parts. This is because it is necessary to provide a working space for the processing equipment during the processing, and some processing methods are only applicable to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/26
CPCC23F1/26
Inventor 朱伯棣
Owner 北京缔诚科技发展有限公司
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