Ramaswami Neelameggham - Salt Lake City UT Owen K. Wheeler - Tooele UT Grant B. Weed - Bountiful UT
Assignee:
Amax Inc. - Greenwich CT
International Classification:
B22D 4600
US Classification:
164458
Abstract:
Magnesium and magnesium alloy castings are produced using porous, calcined plaster of Paris molds by filling the mold cavity and the pores communicating therewith with a pressurized inhibitor gas comprising sulfur hexafluoride and monitoring temperature conditions during cooling of the cast metal using a thermocouple placed in the mold close to the sprue whereby, in the event of an exotherm as indicated by non-decreasing temperature, the mold may be broken to prevent an explosion.