Die casting apparatus

Details Die casting apparatus Die casting apparatus

1988-09-02

1989-08-08

Lin, Kuang Y.

Metal founding

Means providing inert or reducing atmosphere

164312, B22D 2700

Patent

active

048543705

ABSTRACT:
A die casting apparatus has a sleeve having one end communicating with a die cavity defined by a movable die and a fixed die and connected to a feed pipe, a plunger slidably fitted in the sleeve for forcing molten metal supplied from the feed pipe through the sleeve into the die cavity, and a hydraulic cylinder for moving the plunger in the sleeve. An inert gas supply unit communicates with the sleeve for supplying an inert gas to a passage defined in the sleeve and also to the feed pipe. The inert gas supply unit comprises a closed casing and a gas feed pipe for supplying the inert gas into the closed casing. The casing is connected to an opposite end of the sleeve in covering relation thereto, and has a window for visually checking the interior of the casing therethrough.

REFERENCES:
patent: 3400752 (1968-09-01), Unsworth
patent: 4240497 (1980-12-01), Glazunov et al.
patent: 4583579 (1986-04-01), Miki et al.

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