Method of manufacturing a pulp molding die

Details Method of manufacturing a pulp molding die Method of manufacturing a pulp molding die

1996-04-08

1998-05-05

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

298966, 264510, 72 60, B23P 1704, B29C 4906, B21D 1510

Patent

active

057459711

ABSTRACT:
A method of manufacturing a pulp molding die, by providing a superplastic material plate having a plurality of preformed through-holes, closing the plurality of preformed through-holes, heating the superplastic material plate under a pressurized atmosphere, forming the plate into a desired shape, and uncovering the plurality of preformed through-holes of the plate, thereby forming the pulp molding die.

REFERENCES:
patent: 3001582 (1961-09-01), Kindseth et al.
patent: 3325349 (1967-06-01), Reifers
patent: 4901552 (1990-02-01), Ginty et al.
patent: 5309747 (1994-05-01), Yasui
patent: 5361617 (1994-11-01), Dittlo
patent: 5407610 (1995-04-01), Kohama et al.
patent: 5540075 (1996-07-01), Hall, Jr.
English-Language abstract of Japanese Patent No. 52-63268.
English-Language abstract of Japanese Patent No. 2-40800.
English-Language abstract of Japanese Patent No. 58-32556.

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