Method and apparatus for producing cast steel article

Details Method and apparatus for producing cast steel article Method and apparatus for producing cast steel article

1993-04-01

1994-09-20

Batten, Jr., J. Reed

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164 65, 164255, B22D 1806

Patent

active

053480732

ABSTRACT:
The apparatus for producing a cast steel article has a permeable mold having a cavity, a sprue and at least one rise/run-off portion, and a vacuum apparatus, the permeable mold being provided with a hole having an opening on a mold surface near the rise/run-off portion, the vacuum apparatus being provided with a suction pipe having an opening which is brought into contact with the hole of the permeable mold, wherein the air is sucked from the hole by the vacuum apparatus, in order to conduct the casting of the article at reduced pressure.

REFERENCES:
patent: 3774668 (1973-11-01), Heimgartner
patent: 4340108 (1982-07-01), Chandley et al.
patent: 4606396 (1986-08-01), Chandley et al.

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