B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/72
B22D 18/00 (2006.01) B22D 18/04 (2006.01)
Patent
CA 1185063
ABSTRACT Apparatus for casting of low-density metals, such as magnesium alloys, into an air-permeable mold includes a housing (11) forming a substantially airtight chamber (30) in which is disposed a mold assembly (40) including a mold secured between top and bottom plates (47,41) by encircl- ing bands or straps (49). A bottom-discharge reservoir vessel (70) for molten metal is disposed above the mold, the vessel outlet communicating with the mold inlet through a coupling against which the mold assembly is resiliently urged by bias means to insure an airtight coupling. A valve means (95) is selectively operable for opening and closing the vessel outlet and closure means cooperates with the vessel (70) for providing a substantially airtight closure thereof. Pressure control means (33,35,66,68;121, 132) is coupled to the vessel (70) and the chamber (30) for establishing a pressure differential therebetween which cooperates with gravity to urge the molten metal from the vessel into the mold when the valve (95) is open. Two em- bodiments are disclosed, one in which the vessel (70) is disposed within a separate airtight chamber (51) above the mold chamber (30), and another in which the vessel (70) is closed by an airtight cover plate (130). Means are pro- vided for opening and closing the vessel and chambers to provide access to the interiors thereof.
400070
Hammond Harry W.
Rosenthal Hyman
Interlake Inc.
Smart & Biggar
LandOfFree
Apparatus for casting low-density alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for casting low-density alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for casting low-density alloys will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1199884