A method for controlling the hydrogen content of β-titanium alloy wire

A control method, β titanium alloy technology, applied in metal rolling, metal rolling, tool manufacturing, etc., can solve the problem of excessive hydrogen content in β titanium alloy wire, and achieve the effect of qualified hydrogen content

Active Publication Date: 2022-02-25
宝鸡鑫诺特材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the above problems, the present invention develops a method for controlling the hydrogen content of β titanium alloy wire, aiming at solving the problem that the hydrogen content of β titanium alloy wire exceeds the standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The raw material of sponge titanium is 0A grade (GB / T 2524-2010 standard) small particle sponge titanium produced by Luoyang Shuangruiwanji, with a particle size of 0.83-12.7mm.

[0053] The titanium sponge raw material weighs 680kg, and the master alloy adopts AlMoNbSi multi-element alloy with a weight of 220kg. After mixing the titanium sponge and the master alloy in proportion, press it into a Φ280×320mm electrode block with a 2500-ton hydraulic press (the density of the pressed electrode block is greater than 3.2g / cm 3 ), and use a plasma welding machine for welding. After welding, use a temperature of 120 ° C for 3 hours and then immediately install the furnace for melting. The ALD vacuum self-consumption furnace is smelted three times, and the vacuum degree of the last smelting is 0.87Pa. The smelted ingot is forged and rolled to a Φ9.0mm billet, and the forging and rolling process is heated by an electric furnace with a micro-oxidizing atmosphere.

[0054] The rol...

Embodiment 2

[0057] The raw material of sponge titanium is 0A grade (GB / T 2524-2010 standard) small particle sponge titanium produced by Luoyang Shuangruiwanji, with a particle size of 0.83-12.7mm.

[0058] The titanium sponge raw material weighs 680kg, and the master alloy adopts AlMoNbSi multi-element alloy with a weight of 220kg. After mixing the titanium sponge and the master alloy in proportion, press it into a Φ280×320mm electrode block with a 2500-ton hydraulic press (the density of the pressed electrode block is greater than 3.2g / cm 3 ), and use a plasma welding machine for welding. After welding, use a temperature of 120 ° C for 3 hours and then immediately install the furnace for melting. The ALD vacuum self-consumption furnace is smelted three times, and the vacuum degree of the last smelting is 0.87Pa. The smelted ingot is forged and rolled to a Φ9.0mm billet, and the forging and rolling process is heated by an electric furnace with a micro-oxidizing atmosphere.

[0059] The r...

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Abstract

The invention belongs to the field of titanium alloy preparation and processing, and specifically provides a method for controlling the hydrogen content of a beta titanium alloy wire. The present invention controls the processes of raw material selection, smelting, forging, rolling, hot drawing, heat treatment, etc. The raw material requires the use of small particle sponge titanium above grade 0; the sponge titanium is pressed and baked after the electrode is pressed, and a high-vacuum ALD vacuum automatic The electric arc furnace is used for three smelting; the forging and rolling process is heated by an electric furnace to control the micro-oxidation atmosphere; the surface of the billet after rolling is peeled; Reduce the intake of H content from the source, and further reasonably match the heating temperature, deformation amount, and deformation speed to reduce hydrogen addition during the hot drawing process; finally, remove the surface contamination layer by grinding to ensure that the hydrogen content of the finished silk is qualified.

Description

technical field [0001] The invention belongs to the field of titanium alloy preparation and processing, and in particular relates to a method for controlling the hydrogen content of a beta titanium alloy wire. Background technique [0002] β titanium alloy is a high-strength titanium alloy with excellent comprehensive properties. The long-term working temperature of the alloy can reach 400 ° C. It can be used to make aircraft structural parts, engine parts, fasteners, etc. with temperature requirements. In aerospace be widely used. Hydrogen content is a harmful element in titanium alloys. When the hydrogen content exceeds a certain range, it will lead to a sharp decline in material performance, and failure forms such as hydrogen embrittlement will directly affect product quality. Different titanium alloy structures have different hydrogen solubility. β titanium alloy is a high-strength material, which is generally more sensitive to hydrogen embrittlement. The hydrogen-conta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J17/02B21J1/00B21J1/06B21B3/02B21B45/04B21C1/00B21C1/02B21C9/00B21C9/02C22C1/03C10M173/02C10N40/24C10N30/06
CPCB21J17/02B21J1/003B21J1/06B21B3/02B21B45/04B21C1/003B21C1/02B21C9/00B21C9/02C22C1/03C22C14/00C10M173/02C10M2201/041C10M2201/085C10M2201/102
Inventor 容娇娇何忠义段晓鹏
Owner 宝鸡鑫诺特材股份有限公司
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