Magnesium alloy casting in plaster molds

Details Magnesium alloy casting in plaster molds Magnesium alloy casting in plaster molds

1984-04-10

1986-04-01

Godici, Nicholas P.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164 671, 164529, B22D 4600

Patent

active

045791660

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.

REFERENCES:
patent: 3400752 (1968-09-01), Unsworth

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