Method and apparatus for stirring and pouring molten metal in a

Details Method and apparatus for stirring and pouring molten metal in a Method and apparatus for stirring and pouring molten metal in a

1990-01-22

1991-02-12

Kastler, S.

Dispensing

Processes of dispensing

Molten metal

222603, 222606, B22D 3700

Patent

active

049917528

ABSTRACT:
A method and apparatus for stirring molten metal as it is poured into a covered metallurgical vessel in a neutral atmosphere. A gas pressurized tube shroud assembly is positioned in an opening in the covered metal vessel and wherein atmosphere is replaced by the injection of inert gas under pressure through the shroud assembly. Molten metal is poured through a portion of the shroud assembly and as it becomes partially submerged within the molten metal forms a bubble field around the shroud protecting it from nonmetallic inclusions and associated erosion normally incurred.

REFERENCES:
patent: 3460725 (1969-08-01), Golde et al.
patent: 4429816 (1984-02-01), Thrower
patent: 4555050 (1985-11-01), Schiefer
patent: 4619443 (1986-10-01), Mitchell
patent: 4624292 (1986-11-01), LaBate
patent: 4740241 (1988-04-01), LaBate
patent: 4756452 (1988-07-01), Tsukamoto et al.
patent: 4854487 (1989-08-01), Ando et al.

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