Mixed alkali for removing titanium alloy surface oxides and titanium alloy surface oxide removal method

A surface oxide and titanium alloy technology, which is applied in the field of titanium alloy processing, can solve the problems of titanium alloy substrate damage and influence, and achieve the effects of simple formula, improved quality stability, and avoiding the harm of hydrogen absorption

Inactive Publication Date: 2020-04-21
河南航天精工制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another object of the present invention is to provide a method for removing oxides on the surface of titanium alloys, so as to solve the problem of different degrees of damage to the titanium alloy substrate after the existing removal method, which affects subsequent processing and use.

Method used

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  • Mixed alkali for removing titanium alloy surface oxides and titanium alloy surface oxide removal method
  • Mixed alkali for removing titanium alloy surface oxides and titanium alloy surface oxide removal method
  • Mixed alkali for removing titanium alloy surface oxides and titanium alloy surface oxide removal method

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Embodiment 1

[0023] The mixed alkali that is used to remove titanium alloy surface oxide of the present embodiment is made up of the component of following mass percent: 45%NaOH, 50%KOH and 5%Na 2 CO 3 .

Embodiment 2

[0025] The mixed alkali that is used to remove titanium alloy surface oxide of the present embodiment is made up of the component of following mass percent: 40%NaOH, 55%KOH and 5%Na 2 CO 3 .

Embodiment 3

[0027] The mixed alkali that is used to remove titanium alloy surface oxide of the present embodiment is made up of the component of following mass percentage: 40%NaOH, 50%KOH and 10%Na 2 CO 3 .

[0028] Two, the specific embodiment of titanium alloy surface oxide removal method of the present invention

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Abstract

The invention relates to the technical field of titanium alloy processing, in particular to mixed alkali for removing titanium alloy surface oxides and a titanium alloy surface oxide removal method. The mixed alkali for removing the titanium alloy surface oxides comprises the following components in percentage by mass: 40-45% of NaOH, 50-55% of KOH and 5-10% of Na2CO3. According to the mixed alkali for removing the titanium alloy surface oxides, three common alkaline substances are used, so that the mixed alkali is cheap and easy to obtain, and the formula is simple. During use, eutectic melting is carried out at a lower temperature, the titanium alloy surface oxides can be completely removed, acid washing is not needed subsequently, any adverse effect on the titanium alloy is avoided, themixed alkali is suitable for the treatment of titanium alloy material cost and semi-finished products, and the quality stability of the titanium alloy product is improved.

Description

technical field [0001] The invention relates to the technical field of titanium alloy processing, in particular to a mixed alkali for removing surface oxides of titanium alloys and a method for removing oxides on the surface of titanium alloys. Background technique [0002] Titanium alloy materials are corrosion-resistant, high-strength, light-weight, fatigue-resistant, and have excellent performance. They are widely used in aviation, aerospace, medicine and other fields. [0003] Titanium is active at high temperature and is easily oxidized, so an oxide layer will be formed on the surface of titanium alloy during heat treatment. The oxide layer is mostly a substance with high hardness and high brittleness, and its existence will cause surface cracks to easily occur in titanium alloy products and extend into the matrix during subsequent processing and use. Therefore, the oxide layer on the surface of titanium alloy must be treated to ensure its performance. The thickness a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/28
CPCC23G1/28
Inventor 詹洋孙晓军杨晨辉刘哲程远超路兴余静
Owner 河南航天精工制造有限公司
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