Hex-directional press for consolidating powdered materials

Details Hex-directional press for consolidating powdered materials Hex-directional press for consolidating powdered materials

1996-07-02

1998-12-22

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Plural shaping plungers or rolls coacting with a single...

425 77, 425330, 4254052, B29C 4310

Patent

active

058515682

ABSTRACT:
A method for consolidating powdered material to near net shape and full density is provided. The method includes the steps of: mixing a particulate material with an organic or inorganic binder to form a mold material; shaping the mold material into a mold having a shape and including an external surface and an interior cavity and being of sufficient solidity to maintain its shape yet being compressible under pressure; filling the interior cavity with a powdered material to be consolidated; heating the mold with the powdered material therein to form a heated filled mold; applying pressure to the external surface of the mold sufficient to compress the mold material and transfer a pressurizing force to the powdered material within the mold cavity so as to consolidate the powder and form an article; and removing the article from the mold. In an alternative method, the mold material is made of a particulate material which is held in the shape of the mold by a vacuum.

REFERENCES:
patent: 2449008 (1948-09-01), Pecker et al.
patent: 2499530 (1950-03-01), Scott
patent: 3584336 (1971-06-01), Von Platen
patent: 3809736 (1974-05-01), Munk
patent: 4559195 (1985-12-01), Heggenstaller
patent: 5100601 (1992-03-01), Heggenstaller

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