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Cryogenic treatment method of tungsten-titanium alloy

A tungsten-titanium alloy, cryogenic treatment technology, applied in the field of cryogenic treatment of metal materials, can solve problems such as difficulty in rolling and forging, and achieve the effects of reducing grain growth, good mechanical properties, and low cooling temperature

Active Publication Date: 2013-05-22
成都金钨硬质合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a cryogenic treatment method for tungsten-titanium alloy, which solves the existing difficult problems of rolling and forging

Method used

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  • Cryogenic treatment method of tungsten-titanium alloy
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  • Cryogenic treatment method of tungsten-titanium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Grind the tungsten-titanium alloy with fine sandpaper to remove scale and wire cutting marks, then rinse the surface residue with running water, and then use ultrasonic waves and alcohol to further clean the residue and moisture on the surface of the tungsten-titanium alloy;

[0025] Step 2, place the tungsten-titanium alloy cleaned in step 1 on the sample rack of the cryogenic treatment equipment, open the valve of the self-pressurized low-temperature fluid delivery device equipped with liquid nitrogen, and use the gas spray method to treat the alloy. The parameters are: the cooling rate is 15°C / min, the holding temperature is -196°C, and the holding time is 2h. After processing, cut off the power, turn off the cold source, take out the tungsten-titanium alloy and put it in a water bath at 25°C at a rate of 220°C / s. warm up.

[0026] Then, the above step 1 and step 2 are repeated, and the cryogenically treated tungsten-titanium alloy is subjected to a second cr...

Embodiment 2

[0028] Step 1: Grind the tungsten-titanium alloy with fine sandpaper to remove scale and wire cutting marks, then rinse the surface residue with running water, and then use ultrasonic waves and alcohol to further clean the residue and moisture on the surface of the tungsten-titanium alloy;

[0029] Step 2, place the tungsten-titanium alloy cleaned in step 1 on the sample rack of the cryogenic treatment equipment, open the valve of the self-pressurized low-temperature fluid delivery device equipped with liquid nitrogen, and use the gas spray method to treat the alloy. The parameters are: the cooling rate is 8°C / min, the holding temperature is -150°C, and the holding time is 4h. After treatment, cut off the power, turn off the cold source, take out the tungsten-titanium alloy and put it in a water bath at 15°C at a rate of 180°C / s. warm up.

[0030] Then, the above step 1 and step 2 are repeated, and the cryogenically treated tungsten-titanium alloy is subjected to a second cryo...

Embodiment 3

[0032] Step 1: Grind the tungsten-titanium alloy with fine sandpaper to remove scale and wire cutting marks, then rinse the surface residue with running water, and then use ultrasonic waves and alcohol to further clean the residue and moisture on the surface of the tungsten-titanium alloy;

[0033] Step 2, place the tungsten-titanium alloy cleaned in step 1 on the sample rack of the cryogenic treatment equipment, open the valve of the self-pressurized low-temperature fluid delivery device equipped with liquid nitrogen, and use the gas spray method to treat the alloy. The parameters are: the cooling rate is 13°C / min, the holding temperature is -175°C, and the holding time is 24h. After the treatment, the power is cut off, the cold source is turned off, and the tungsten-titanium alloy is taken out of the cryogenic treatment equipment with a clamp and placed in a water bath at 20°C. Rapid temperature recovery at a rate of 200°C / s, that is, a cryogenically treated tungsten-titanium...

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Abstract

The invention discloses a cryogenic treatment method of a tungsten-titanium alloy. The method comprises the following steps of: placing the cleaned tungsten-titanium alloy on a specimen holder of cryogenic treatment equipment; opening a valve of a self-pressurized cryogenic fluid conveying device filled with a cryogenic medium; treating the alloy by using a gas spraying method; after the treatment is finished, cutting off a power supply and closing a cryogenic source; and taking out the tungsten-titanium alloy to be put into a water bath of 15 to 25 DEG C to quickly realize the temperature raise at the rising rate of 180 to 200 DEG C / s, thereby obtaining the tungsten-titanium alloy of the cryogenic treatment. The tungsten-titanium alloy obtained by using the cryogenic treatment method has the definite crystal orientation and the good mechanical property, so that a film with a good blocking effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of cryogenic treatment of metal materials, and in particular relates to a cryogenic treatment method of tungsten-titanium alloy. Background technique [0002] Due to its stable thermomechanical properties, tungsten-titanium alloy is not only suitable for use in high-current and high-temperature environments, but also has a series of advantages such as low electron mobility, high corrosion resistance, and good chemical stability. Block Cu and Si / SiO 2 The best candidate for diffusion between thin films. Since the grain orientation of the tungsten-titanium alloy is difficult to control during the preparation process, the prepared tungsten-titanium alloy needs to be processed to improve its grain orientation during use. The existing methods for improving the grain orientation of the alloy mainly include rolling and forging. However, due to the high brittleness of tungsten-titanium alloy, it is difficult to us...

Claims

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Application Information

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IPC IPC(8): C22F1/18
Inventor 梁淑华代卫丽肖鹏邹军涛
Owner 成都金钨硬质合金有限公司
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