Vacuum valve design for die casting

Details Vacuum valve design for die casting Vacuum valve design for die casting

1992-04-27

1994-03-15

Cuchlinski, Jr., William A.

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33121, G01B 526, B22D 1720

Patent

active

052936937

ABSTRACT:
A method for determining the size of the open area of a vacuum valve for use in a die casting operation is disclosed. The invention determines the size primarily as a function of the total length of the exterior parting lines of the die. Apparatus for producing die castings is disclosed which has a vacuum valve with a specified open flow area.

REFERENCES:
patent: 2562749 (1951-07-01), Speer
patent: 2747795 (1956-05-01), Kreuttner
patent: 2971230 (1961-02-01), Coleman et al.
patent: 4326338 (1982-04-01), Plante
patent: 4538666 (1985-09-01), Takeshima et al.
patent: 4577670 (1986-03-01), Moore
patent: 4852634 (1989-08-01), Kawai et al.

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