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Processing method of TC21 high-strength and high-toughness titanium alloy wire

The technology of a tough titanium alloy and a processing method is applied in the processing field of TC21 high-strength and high-toughness titanium alloy wire, which can solve the problems of difficult production of TC21 titanium alloy wire, and achieve the effect of high quality and reasonable process.

Inactive Publication Date: 2013-09-04
贵州顶效经济开发区沈兴实业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a processing method of TC21 high-strength and high-toughness titanium alloy wire, which solves the problem of difficult production of domestic TC21 titanium alloy wire in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) The first annealing and stretching process: the first surface treatment of TC21 titanium alloy straight rod or wire rod, manual or mechanical grinding to remove the surface defects of the raw material, and then put into the annealing furnace for annealing, the annealing temperature is 780°C, and keep it warm for 80 minutes; after being out of the furnace, it has been stretched twice, the stretching speed is 25m / min, the processing rate is 3%, and the stretching temperature is 750°C; the purpose of annealing is to obtain the elongation that can meet the stretching requirements ;

[0038] (2) The second annealing and stretching process: anneal the material in the above step (1) again, the annealing temperature is 750 ° C, and keep it warm for 60 minutes, and then it is stretched twice after it is released from the furnace, and the stretching speed is 25m / min. The processing rate is 3%, and the stretching temperature is 700°C. After ensuring the roundness of the materi...

Embodiment 2

[0048] (1) The first annealing and stretching process: the first surface treatment of TC21 titanium alloy straight rod or wire rod, manual or mechanical grinding to remove the surface defects of the raw material, and then put into the annealing furnace for annealing, the annealing temperature is 800°C, and keep it warm for 120min; After being out of the furnace, it has been stretched twice, the stretching speed is 30m / min, the processing rate is 6%, and the stretching temperature is 760°C; the purpose of annealing is to obtain the elongation that can meet the stretching requirements ;

[0049] (2) The second annealing and stretching process: anneal the material in the above step (1) again, the annealing temperature is 780 ° C, and keep it warm for 100 minutes, and then stretch it twice after it comes out of the furnace, the stretching speed is 30m / min, The processing rate is 6%, and the stretching temperature is 730°C. After ensuring the roundness of the material, perform surf...

Embodiment 3

[0059] (1) The first annealing and stretching process: the first surface treatment of TC21 titanium alloy straight rod or wire rod, manual or mechanical grinding to remove the surface defects of the raw material, and then put into the annealing furnace for annealing, the annealing temperature is 820°C, and keep it warm for 150min; After being out of the furnace, it has been stretched twice, the stretching speed is 35m / min, the processing rate is 9%, and the stretching temperature is 770°C; the purpose of annealing is to obtain the elongation that can meet the stretching requirements ;

[0060] (2) The second annealing and stretching process: anneal the material in the above step (1) again, the annealing temperature is 800 ° C, and keep it warm for 120 minutes, and then stretch it twice after it comes out of the furnace, the stretching speed is 35m / min, The processing rate is 9%, and the stretching temperature is 750°C. After ensuring the roundness of the material, the surface ...

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Abstract

The invention discloses a processing method of a TC21 high-strength and high-toughness titanium alloy wire. The processing method comprises the following steps of: (1) carrying out annealing stretching process for the first time; (2) carrying out annealing stretching process for the second time; (3) carrying out annealing stretching process for the third time; (4) carrying out annealing stretching process for the fourth time; and (5) carrying out vacuum annealing and surface treatment and manufacturing the finished product. The processing method solves the problem of difficult production of TC21 titanium alloy wire in China, innovates the production method, and is reasonable and efficient in technology; and the obtained high-quality TC21 titanium alloy wire product is beneficial to the development of TC21 titanium alloy industry in China.

Description

technical field [0001] The invention relates to a processing method of TC21 high-strength and high-toughness titanium alloy wire. Background technique [0002] TC21 titanium alloy is a two-phase high-strength, high-toughness, high-damage-tolerant α+β titanium alloy. It is one of the titanium alloys with better comprehensive mechanical properties of high-strength and high-toughness titanium alloys in my country. Wing joint structural parts, fuselage and landing gear connection frame, suspension engine joints and other parts, as well as the production of important or key load-bearing parts that require high strength and durability. At present, the application forms of TC21 titanium alloy are mainly bars, forgings and thick plates. Because of its high hardness, low plasticity, and the characteristic that it can still be made of its own material under high temperature conditions, it has become one of the first choices for aviation materials; at the same time, it also determines ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C1/00C22F1/18
Inventor 陈文孟凡斌
Owner 贵州顶效经济开发区沈兴实业有限责任公司
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