Molding a component by blowing powder into a porous mold

Details Molding a component by blowing powder into a porous mold Molding a component by blowing powder into a porous mold

1991-03-08

1992-12-08

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 57, 264517, 264121, 419 38, B27N 100, B29C 4322, B29C 5900

Patent

active

051695774

ABSTRACT:
A process for the production of a complex component made of metal, ceramic or plastic, in which process powder (7) is blown by means of a transport gas into a gas-permeable negative mold (14), which is under reduced pressure and is located in a container (11), and pre-compacted, after which the negative mold (14) is removed from the container (11) and the green compact is sintered, either in a separate ceramic supporting composition or in the negative mold (14) itself, which consists of ceramic. The process allows production of a hollow body or of a layered body as the component by programming the powder injection.

REFERENCES:
patent: 4056589 (1977-11-01), Lingscheit
patent: 4473526 (1984-09-01), Buhler et al.
patent: 4683118 (1987-07-01), Hayashi et al.

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