Hot isostatic pressure repairing method of copper-chromium-zirconium-stainless steel explosive welded clad plate connection interface
A repair method and technology of a hot isostatic press, applied in the field of static pressure repair, can solve the problems of defects in the connection interface, low product yield, and unstable connection performance, so as to meet the organizational structure and mechanical properties, and improve the yield. , the effect of interface defect repair
Active Publication Date: 2020-10-23
SOUTHWESTERN INST OF PHYSICS
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Problems solved by technology
At present, explosive welding is one of the main methods for manufacturing composite panels for fusion experiments, but there are many problems in the composite panels manufactured by explosive welding: the connection performance is not stable enough, the connection interface has defects, and the product yield is low
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[0023] The present invention will be further described below by means of the accompanying drawings and specific embodiments.
[0024] High-purity argon gas (purity ≥ 99.99%) for hot isostatic pressing medium complies with GB / T4842-1995 standard;
[0025] The workpieces to be processed are copper chromium zirconium and 316L stainless steel explosive welding clad plates.
[0026] as per figure 1 The steps shown in the process are as follows:
[0027] (1) Fix the copper chromium zirconium and stainless steel explosive welding composite plate on the material seat of the hot isostatic pressing machine;
[0028] (2) Turn on the booster pump to pressurize, the gas medium is argon, and the argon with a purity of more than 99.99% is used; argon is used as the heating and pressurizing medium for hot isostatic pressure repair, because it is not active, so the heating and pressurization performance better;
[0029] (3) Turn on the heating element for heating, the heating rate is >6°C / ...
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The invention belongs to a technology for diffusion connection treatment for dissimilar metals and particularly discloses a hot isostatic pressure repair method for a connection interface of a copper-chromium-zirconium and stainless steel explosion welding composite board. The hot isostatic pressure repair method comprises the steps that the copper-chromium-zirconium and stainless steel explosionwelding composite board is fixed to a hot isostatic pressure machine; after pressure boosting, heat and pressure preservation, rapid cooling and furnace cooling are conducted while pressurization andheating are conducted, gas is recycled, and solution treatment is conducted; and then, defects of the connection interface of the explosion welding composite board are repaired. The problems that connection performance of explosion welding is not stable enough, and the connection interface has the defects are solved. The yield of the copper-chromium-zirconium and stainless steel composite board repaired through the hot isostatic pressure is greatly increased; the defects of the interface are repaired; and the structure and mechanical performance can meet the using requirements.
Description
technical field [0001] The invention belongs to the treatment technology of dissimilar metal diffusion connection, and in particular relates to a hot isostatic pressure repair method for an explosive welding connection interface. Background technique [0002] Dissimilar metal composite plates are widely used in the International Thermonuclear Experimental Reactor (ITER), and will occupy an important place in the future fusion reactor materials. The composite plates used in fusion reactors have important effects on connection performance, interface defects, and material mechanical properties strict requirements. At present, explosive welding is one of the main methods for manufacturing composite panels for fusion experiments, but there are many problems in the composite panels manufactured by explosive welding: the connection performance is not stable enough, the connection interface has defects, and the product yield is low. Contents of the invention [0003] The purpose ...
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IPC IPC(8): B22F7/06
CPCB22F7/062B22F2007/068
Inventor 王平怀谌继明李前周毅金凡亚杨波刘丹华
Owner SOUTHWESTERN INST OF PHYSICS