Method for discharging gas out of metal molds and apparatus ther

Details Method for discharging gas out of metal molds and apparatus ther Method for discharging gas out of metal molds and apparatus ther

1993-11-22

1995-10-24

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164 65, 164305, 164113, B22D 1732

Patent

active

054602181

ABSTRACT:
A method and apparatus capable of continuously discharging contaminated gas out of metal molds, the gas being generated prior to the casting step and including moisture. A gas vent valve is provided at a gas vent passage in communication with a mold cavity. A suction unit and a vacuum pump are selectively connected to the gas vent valve. After closure of the metal molds, the suction unit is connected to the gas vent valve to perform sucking interior of the mold cavity. By this suction, an external air is introduced into the metal molds through a pouring port of a shot sleeve. Thus, contaminated gas in the cavity is replaced with a clean air. During injection molding, the gas vent valve is connected to the vacuum pump for decompressing the mold cavity. Vapor explosion is avoidable since moisture content is removed from the mold cavity even if the molten metal is introduced into the cavity.

REFERENCES:
Patent Abstracts of JapaN, vol. 9, No. 286, 13 Nov. 1985 (JPA 60 127 063, 6 Jul. 1985).
Patent Abstracts of Japan, vol. 7, No. 183, 12 Aug. 1983 (JA 58 084 658, 20 May 1983).
Patent Abstracts of Japan, vol. 9, No. 117, 22 May 1985 (JA 60 003 959, 10 Jan. 1985).

Affiliated with

Also associated with

Rating

Method for discharging gas out of metal molds and apparatus ther does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for discharging gas out of metal molds and apparatus ther, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for discharging gas out of metal molds and apparatus ther will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1881039