Hot isostatic pressure repair process for connection interface of tungsten-chromium zirconium copper vacuum brazing part

A hot isostatic press, chromium zirconium copper technology, applied in welding equipment, manufacturing tools, non-electric welding equipment and other directions, to achieve the effect of improving yield, improving stability and firmness, and repairing interface defects

Pending Publication Date: 2022-04-01
合肥聚能电物理高技术开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a hot isostatic pressing repair process for the connection interface of tungsten-chromium-zirconium-copper vacuum brazing parts, which solves the welding defects that are prone to occur in the tungsten-chromium-zirconium-copper vacuum brazing parts in the prior art Problems, effectively realize the effective connection of tungsten-chromium zirconium copper

Method used

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  • Hot isostatic pressure repair process for connection interface of tungsten-chromium zirconium copper vacuum brazing part

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Embodiment 1

[0032] Please refer to figure 1 , the present embodiment provides a tungsten-chromium-zirconium-copper vacuum brazing joint interface hot isostatic pressing repair process, including the following steps:

[0033] Place the tungsten-chromium-zirconium copper vacuum brazing parts in the hot isostatic press basket, and place them on the material seat of the hot isostatic press;

[0034] Start the hot isostatic press and start vacuuming, the vacuum degree is 100Pa;

[0035] Start the gas supply system to clean the furnace and deflate the gas. The purity of the gas is not less than 99.99% argon. replaced;

[0036] Start the supercharger to start pre-increasing, the pre-increasing parameter is 45MPa; the pre-increasing is because the pressure of the gas will increase with the temperature during the heating process, and the pressure will increase, so generally some pressure will be pre-increased, When the temperature is up, if the pressure is not enough, add a little more pressure...

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Abstract

The invention relates to the technical field of dissimilar metal connection, and discloses a tungsten-chromium zirconium copper vacuum brazing part connection interface hot isostatic pressing repair process which comprises the steps of vacuumizing, furnace washing, deflating, pre-pressurizing, heating and pressurizing, heat and pressure preservation, rapid cooling starting, aging treatment, gas recovery system starting and gas recovery in a hot isostatic pressing machine in sequence. According to the method, the defects of the interface of the tungsten-chromium-zirconium-copper vacuum brazing part are repaired through the hot isostatic pressing technology in the high-temperature and high-pressure state, and the problem that the defects exist in the connecting interface of the tungsten-chromium-zirconium-copper vacuum brazing part is solved.

Description

technical field [0001] The invention relates to the technical field of connection of dissimilar metals, in particular to a hot isostatic pressure repair process for the connection interface of a tungsten-chromium-zirconium-copper vacuum brazing part. Background technique [0002] In a nuclear fusion device, when a high-temperature plasma discharge is performed, a large amount of high-energy particle flow will bombard the inner wall of the tokamak device, causing damage to the inner wall material. Plasma facing components (PFCs) are the first barrier to protect the vacuum chamber wall and other internal components of the device from direct irradiation of high-temperature plasma, and their performance is directly related to the operating quality of the discharge plasma. [0003] PFCs components are mainly W / CuZrCr components, and the preparation methods of PFCs components mainly include coating technology, welding, active metal casting and conceptual connection of functionally...

Claims

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Application Information

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IPC IPC(8): B23K20/02B23K20/14
Inventor 沈旭李波陶嘉赵东东姜北燕周能涛
Owner 合肥聚能电物理高技术开发有限公司
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