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Titanium alloy surface processing process

A surface treatment, titanium alloy technology, applied in the direction of metal processing equipment, manufacturing tools, abrasives, etc., can solve the problems of incomplete removal of stubborn scales, improved surface wear resistance, rough surface, etc., to improve oxidation resistance and Creep performance, surface hardness improvement, surface smooth effect

Inactive Publication Date: 2017-06-06
当涂县宏宇金属炉料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the surface treatment of titanium alloy tools is mostly carried out according to the surface treatment process of steel tools. This process cannot completely remove the stubborn scales on the surface of titanium alloys caused by hot forging. Grinding needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A titanium alloy surface treatment process, comprising the following steps:

[0020] (1) Sand blasting: Put the titanium alloy workpiece into an environment with a relative humidity of 60% and a temperature of 50°C for 2 hours. The abrasive is cast iron sand with a particle size of 1.2mm and 0.5mm. The injection pressure when using 1.2mm abrasive 0.55MPa, and then use 0.5mm abrasive for the second injection, the injection pressure is 0.66MPa, the distance between the nozzle and the titanium alloy surface is maintained at 120mm, and the angle between the injection direction and the normal line of the titanium alloy workpiece surface is controlled at 25°;

[0021] (2) Chemical treatment: Soak the sandblasted workpiece in a solution prepared by mixing ethylenediaminetetraacetic acid, triethanolamine, sodium fluorosilicate and water for 30 minutes;

[0022] (3) Rough polishing: Roughly polish the soaked workpiece with 100-mesh sand on a polishing machine;

[0023] (4) Pier...

Embodiment 2

[0030] A titanium alloy surface treatment process, comprising the following steps:

[0031] (1) Sand blasting: Put the titanium alloy workpiece into an environment with a relative humidity of 68% and a temperature of 54°C for 2 hours. The abrasive is cast iron sand with a particle size of 1.2mm and 0.5mm. The injection pressure when using 1.2mm abrasive 0.58MPa, and then use 0.5mm abrasive for the second injection, the injection pressure is 0.69MPa, the distance between the nozzle and the titanium alloy surface is maintained at 120mm, and the angle between the injection direction and the normal line of the titanium alloy workpiece surface is controlled at 25°;

[0032] (2) Chemical treatment: Soak the sandblasted workpiece in a solution prepared by mixing ethylenediaminetetraacetic acid, triethanolamine, sodium fluorosilicate and water for 30 minutes;

[0033] (3) Rough polishing: Roughly polish the soaked workpiece with 100-mesh sand on a polishing machine;

[0034] (4) Pier...

Embodiment 3

[0041] A titanium alloy surface treatment process, comprising the following steps:

[0042] (1) Sand blasting: Put the titanium alloy workpiece into an environment with a relative humidity of 64% and a temperature of 52°C for 2 hours. The abrasive is cast iron sand with a particle size of 1.2mm and 0.5mm. The injection pressure when using 1.2mm abrasive 0.56MPa, and then use 0.5mm abrasive for the second injection, the injection pressure is 0.68MPa, the distance between the nozzle and the titanium alloy surface is maintained at 120mm, and the angle between the injection direction and the normal line of the titanium alloy workpiece surface is controlled at 25°;

[0043] (2) Chemical treatment: Soak the sandblasted workpiece in a solution prepared by mixing ethylenediaminetetraacetic acid, triethanolamine, sodium fluorosilicate and water for 30 minutes;

[0044] (3) Rough polishing: Roughly polish the soaked workpiece with 100-mesh sand on a polishing machine;

[0045] (4) Pier...

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PUM

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Abstract

The invention discloses a titanium alloy surface processing process which comprises steps of (1) sand blasting; (2), chemical processing; (3), rough polish; (4), burr removal; (5), fine polish; (6), finishing polish; (7), corona processing; (8), acid pickling processing; (9), drying by boiling and oil smearing. Titanium alloy processed through the process is smooth and bright in surface, uniform in color and free of color change, oxide skin and the like; and in addition, antioxygenation and creep performance of the titanium alloy processed through the process can also be greatly improved, and a surface microstructure is effectively refined.

Description

technical field [0001] The invention relates to the field of metal surface treatment, in particular to a titanium alloy surface treatment process. Background technique [0002] At present, the surface treatment of titanium alloy tools is mostly carried out according to the surface treatment process of steel tools. This process cannot completely remove the stubborn scales on the surface of titanium alloys caused by hot forging. Grinding needs to be improved. Contents of the invention [0003] The object of the present invention is to provide a kind of titanium alloy surface treatment process, realize by following technical scheme: [0004] A titanium alloy surface treatment process, comprising the following steps: [0005] (1) Sand blasting: Put the titanium alloy workpiece into the environment with a relative humidity of 60-68% and a temperature of 50-54°C for 2 hours. The abrasive is cast iron sand with a particle size of 1.2mm and 0.5mm, and 1.2mm is used. The injecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24C1/08B24C11/00B24B1/00C23G1/10C23F4/00
CPCB24C1/086B24B1/00B24C11/00C23F4/00C23G1/106
Inventor 芮德发
Owner 当涂县宏宇金属炉料有限责任公司
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