Die casting apparatus
AssigneeToshiba Kikai Kabushiki Kaisha
InventorHiromi Nakamura
Life of this patent
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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.
Claims7
A die casting apparatus comprising:
- 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 said sleeve for forcing molten metal supplied from said feed pipe through said sleeve into said die cavity;
- driver means for moving said plunger in said sleeve;
- supply means communicating with said sleeve for supplying an inert gas to a passage defined in said sleeve and also to said feed pipe, said supply means comprising a closed casing and a gas feed pipe for supplying the inert gas into said closed casing, said casing being connected to an opposite end of said sleeve in covering relation thereto, said casing having a window for visually checking the interior of the casing therethrough;
- said casing has an opening defined in a bottom thereof for removing small metal pieces from said casing.
Dependencies are inferred from the claim text.