B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/69
B22D 17/08 (2006.01) B22D 17/30 (2006.01)
Patent
CA 1329460
ABSTRACT A casting apparatus comprising a crucible furnace for containing a molten metal, a die assembly defining a die cavity having a casting volume for producing a die casting by forcing molten metal from the crucible furnace thereinto, an injection sleeve having a feed slot located therein, wherein the injection sleeve is vertically oriented for supplying the molten metal upwardly towards the die cavity, a feed block proximate to the injection sleeve and comprising a curved passage therein one end of which communicates with the feed slot, a feed pipe connected to the other end of the curved passage for providing fluid communication between the crucible furnace and the curved passage, feeder means for feeding the molten metal from the crucible furnace, through the feed pipe and the curved passage in the feed block, and through the feed slot into the injection sleeve. The present invention avoids the problems usually associated with the use of vertically oriented injection sleeve, such as oxidation of the molten metal, and solidification of molten metal upon the walls of the feed passage between the crucible furnace and the injection sleeve.
596700
Bereskin & Parr
Toshiba Kikai Kabushiki Kaisha
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