Preparation of capsule for use in isostatic pressing treatment

Details Preparation of capsule for use in isostatic pressing treatment Preparation of capsule for use in isostatic pressing treatment

1991-04-11

1992-09-15

Seidel, Richard K.

Metal fusion bonding

Process

Preplacing solid filler

228186, 228265, 419 49, B23K 3524

Patent

active

051470861

ABSTRACT:
A process for preparation of capsule for use in isostatic pressing treatment, the process comprising a first step of enclosing a material to be treated, such as ceramic, metal, resin, etc. with metallic foil having a thickness of from 30 to 300 .mu.m, and a second step of welding the metallic foil so as to seal the material to be treated in the metallic foil thus welded, thereby preparing a capsule, wherein the welding is carried out by means of TIG welding. Alternatively, the welding may be carried out by means of seam resistance welding. It is posible, by the process, to seal the material to be treated in a capsule easily and economically. The capsule thus obtained is in a good sealed condition, permits effective isostatic pressing treatment, and enables the treated material to be taken out easily. A ceramic or metal layer covers the material to be treated to prevent adhesion between the material and the metallic foil.

REFERENCES:
patent: 3340053 (1967-09-01), Hodge et al.
patent: 3577635 (1971-05-01), Bergman
patent: 3936277 (1976-02-01), Jakway et al.
patent: 4150775 (1979-04-01), Roden et al.
patent: 4383809 (1983-05-01), Hoffmuller
patent: 4435360 (1984-03-01), Trottier et al.
patent: 4772293 (1988-09-01), Bugden et al.
patent: 4995549 (1991-02-01), Hellman, Sr.

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