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A kind of brazing method of tungsten-copper alloy and chromium-zirconium-copper alloy

A technology of tungsten copper alloy and brazing method, applied in welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of complex sintering process of tungsten copper alloy, high welding cost, high sintering temperature, avoid serious oxidation, The effect of low cost and low soldering temperature

Active Publication Date: 2021-08-17
SHENYANG JINCHANG LANYU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tungsten-copper alloy sintering process of this method is complicated, the sintering temperature is high, the pressure is high, and the energy consumption is high. Although the heat-affected area of ​​electron beam welding is small, it requires a high-vacuum environment and the welding cost is high.

Method used

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  • A kind of brazing method of tungsten-copper alloy and chromium-zirconium-copper alloy
  • A kind of brazing method of tungsten-copper alloy and chromium-zirconium-copper alloy

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specific Embodiment approach 1

[0026] Specific embodiment one: a kind of brazing method of tungsten-copper alloy and chromium-zirconium-copper alloy of the present embodiment is carried out according to the following steps:

[0027] 1. Before welding, polish the surface of the tungsten-copper block and the chrome-zirconium-copper base to be welded brightly, and use acetone as a cleaning agent to ultrasonically clean the two base materials to remove surface impurities;

[0028] 2. Fix the tungsten-copper block and chrome-zirconium-copper base cleaned in the previous step on the preheating table with clamps. The preheating temperature is 500-600°C, and the preheating time is 5-30 minutes;

[0029] 3. After preheating, use a flame spray gun to locally heat the surface to be welded of tungsten copper and chromium zirconium copper, and the flame will completely surround the part to be welded. When the temperature reaches the melting point of the flux, spread flux on the surface to be welded , and spread the flux...

specific Embodiment approach 2

[0040] Specific Embodiment 2: This embodiment is different from Specific Embodiment 1 in that: the thickness of the brazing filler metal layer reserved on the surface to be welded in Step 5 is 0.1-0.6 mm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0041] Embodiment 3: Embodiment 1 of this embodiment is different in that: the tungsten-copper alloy is WCu20, and the chromium-zirconium-copper alloy is CuCr1Zr. Others are the same as in the first embodiment.

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Abstract

A brazing method for tungsten-copper alloy and chromium-zirconium-copper alloy, which relates to the field of welding. The purpose of the invention is to shorten the welding time of tungsten-copper alloy and chromium-zirconium-copper alloy, avoid the use of solder resist, reduce welding cost, and improve welding efficiency . The invention adopts the method of ultrasonic-assisted brazing to connect tungsten-copper and chromium-zirconium-copper alloy, and uses the ultrasonic wave in the welding process through the titanium alloy intermediate layer to promote the spreading and wetting of the melted solder on the welding surface by using the acoustic cavitation effect . When tungsten-copper alloy and chromium-zirconium-copper alloy are welded together, one of the base metals is moved to promote the discharge of air bubbles, and then the ultrasonic-assisted brazing process is completed in a short period of time under a lower welding pressure. In addition, the present invention can Welding in the atmospheric environment has low technical requirements for welding operators and high welding efficiency. The invention is applied in the field of welding.

Description

technical field [0001] The invention relates to the field of welding, in particular to a brazing method for a tungsten-copper alloy and a chromium-zirconium-copper alloy. Background technique [0002] Tungsten copper alloy combines the advantages of metal tungsten and copper, uniform microstructure, high temperature resistance, high strength, arc ablation resistance, high density, moderate electrical and thermal conductivity, and has a wide range of uses. At present, it has been used to manufacture contacts of high-voltage electrical switches resistant to arc ablation, rocket nozzle throat linings, tail rudders and other high-temperature components, as well as electrodes for electrical processing, high-temperature molds, and other electrical and thermal conductivity and high-temperature applications occasion. [0003] Chromium-zirconium copper (CuCrZr) has high strength and hardness, strong electrical and thermal conductivity, good wear resistance and wear reduction, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/06B23K1/19B23K1/20B23K28/02
CPCB23K1/06B23K1/19B23K1/20B23K1/206B23K28/02B23K2103/12
Inventor 许志武陈姝李政玮苗晓丹
Owner SHENYANG JINCHANG LANYU NEW MATERIAL CO LTD
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