Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Heat and pressure simultaneously to effect sintering
Patent
1984-02-22
1984-10-23
Padgett, Benjamin R.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Heat and pressure simultaneously to effect sintering
419 48, 419 56, 264 56, 264319, B22F 300
Patent
active
044787898
ABSTRACT:
An object of ceramic or metallic material is manufactured by isostatic pressing of a body preformed from a powder of the metallic or ceramic material, the preformed body (10) then being embedded in glass, for example in a mass of glass particles (16) in a vessel (15) which is resistant to the temperature at which the sintering of the metallic or ceramic material is carried out, the material embedding the preformed body being transferred to a melt having a surface limited by the walls of the vessel, below which surface the preformed body is located, and a pressure necessary for the isostatic pressing of the preformed body then being applied on the melt by a gaseous pressure medium.
REFERENCES:
patent: 3229971 (1973-05-01), Gurganas et al.
patent: 3455682 (1969-07-01), Barbaras
patent: 3700435 (1972-10-01), Chandhok
patent: 3804575 (1974-04-01), Chandhok
patent: 3992200 (1976-11-01), Chandhok
patent: 4081272 (1978-03-01), Adlerborn
patent: 4108652 (1978-08-01), Ogawa
Larker Hans
Mattsson Bertil
Nilsson Jan
Asea AB
Padgett Benjamin R.
Wallen T. J.
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