Automatic unplugging aluminothermic welding crucible

Details Automatic unplugging aluminothermic welding crucible Automatic unplugging aluminothermic welding crucible

B - Operations, Transporting

22

D

22/80

B22D 35/00 (2006.01) B22D 37/00 (2006.01) B22D 39/00 (2006.01) B22D 41/00 (2006.01)

Patent

CA 1038132

ABSTRACT OF THE DISCLOSURE The present invention relates to an automatic unplugging aluminothermic welding crucible comprising a crucible per se made of refractory material, shaped generally as a truncated cone with a vertical axis, said cone tapering inwardly to the lower base thereof and comprising a vertically oriented conical hole, in said crucible, receiving a crown provided with a conical bore, said conical bore extending vertically through said crown and being inwardly downwardly tapered, said conical bore of said crown and said conical hole receiving a casting socket disposed vertically therein, the lower base of said crucible being sealed by sealing means before filling of said crucible. The sealing means comprise a plug made of an aluminothermic compound consisting of iron oxide and aluminum agglomerated with a suitable binder, said plug resting on a steel washer.

197228

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