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Hot isostatic pressing method for preventing adhesion between welding part and package sleeve.

A technology of hot isostatic pressing and welding parts, which is applied in welding equipment, non-electric welding equipment, ion implantation plating, etc., can solve the problems of incomplete anti-adhesion effect and welding interface defects, and achieve the integrity of weldments, easy separation, The effect of improving quality

Inactive Publication Date: 2018-07-06
SOUTHWESTERN INST OF PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is: the existing method for preventing hot isostatic welding parts from sticking to the sheath is likely to cause welding interface defects or incomplete anti-sticking effect

Method used

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  • Hot isostatic pressing method for preventing adhesion between welding part and package sleeve.
  • Hot isostatic pressing method for preventing adhesion between welding part and package sleeve.
  • Hot isostatic pressing method for preventing adhesion between welding part and package sleeve.

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The part to be welded is the semi-prototype finger module of the first wall of the shielding cladding of the thermonuclear experimental reactor, such as figure 1 As shown, the finger module is composed of 48 beryllium tiles 3 of different sizes and a curved composite plate cooling base 4 with cooling channels through hot isostatic welding. The curved surface composite plate cooling base 4 is made of copper-chromium-zirconium alloy or 316L stainless steel or 316N stainless steel.

[0046] The hot isostatic pressing method in the present embodiment is as figure 2 As shown, it specifically includes the following steps:

[0047] Step 1. Coating Deposition

[0048] Depositing a ceramic-based coating on the part of the surface of the sheath cover 1 in contact with the beryllium tile 3;

[0049] The jacket cover 1 is made of 304 stainless steel with a thickness of 2 mm, and an alumina ceramic coating is deposited on the part of its surface in contact with the beryllium til...

Embodiment 2

[0068] The part to be welded is the neutron irradiation module of the first wall of the shielding cladding of the thermonuclear fusion experimental reactor, such as figure 2 As shown, the neutron irradiation module is composed of four beryllium tiles 3 and a curved composite plate cooling base 4 with cooling channels through hot isostatic welding. The curved surface composite plate cooling base 4 is made of copper-chromium-zirconium alloy or 316L stainless steel or 316N stainless steel.

[0069] The method used in this embodiment specifically includes the following steps:

[0070] Step 1. Coating Deposition

[0071] Depositing a carbon-based coating on the part of the surface of the sheath cover 1 in contact with the beryllium tile 3;

[0072] The wrapping cover 1 is made of 304 stainless steel with a thickness of 2 mm, and a carbon-based coating is deposited on the part of its surface that is in contact with the beryllium tile 3 by means of a magnetic filter cathode arc. ...

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Abstract

The invention belongs to the technical field of hot isostatic pressing welding, and particularly relates to a hot isostatic pressing method for preventing adhesion between a welding part and a packagesleeve. The methods specifically comprise the steps that coating deposition is performed, the cleaning and baking degassing are performed, the package sleeve is subjected to packaging and sealing, the hot isostatic pressing welding is performed, and the package sleeve is removed. According to the hot isostatic pressing method for preventing the adhesion between the welding part and the package sleeve, the problems that the existing hot isostatic pressing method to prevent adhesion between the welding part and the bag sleeve is prone to causing the defect of a welding interface and the uncompleted anti-adhesion effect are solved; after the hot isostatic pressure diffusion welding, non-adhesion exists between the welding part and the package sleeve, the welding part are easily separated from the package sleeve, and the welding part is completed under the condition of maintaining good welding interface quality; and the requirement of product technical index can be met, the follow-up process is simplified, the production efficiency is improved, the batch production of the hot isostatic pressure diffusion welding can be achieved economically and environmentally.

Description

technical field [0001] The invention belongs to the technical field of hot isostatic pressing welding, and in particular relates to a method for preventing welding parts from sticking to a sheath by hot isostatic pressing. Background technique [0002] Hot isostatic pressing (HIPing) welding means that in a high-temperature and high-pressure sealed container, the weldment placed in the high-pressure container is uniformly pressurized from all directions with high-pressure gas as the medium, and heated at the same time, and is realized under the action of temperature and pressure. Diffusion welding of weldments. Conventional hot isostatic pressing welding uses a sealed sheath to seal the weldment in a closed space, and applies the air pressure in the hot isostatic pressing furnace to the weldment through the sheath. Therefore, the sheath technology is one of the core processes. one. However, in the development and production process, in order to maintain the integrity of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/02B23K20/18B23K20/24C23C14/08C23C14/32C23C14/02
CPCB23K20/02B23K20/18B23K20/24C23C14/022C23C14/081C23C14/325
Inventor 金凡亚谌继明尹星王平怀赵云华朱明张平高翚
Owner SOUTHWESTERN INST OF PHYSICS
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