Metal continuously melting and retaining furnace

Details Metal continuously melting and retaining furnace Metal continuously melting and retaining furnace

1989-04-14

1991-02-05

Andrews, Melvyn J.

Metallurgical apparatus

Means for melting or vaporizing metal or treating liquefied...

By means introducing treating material

266225, 266226, 266900, 266901, F27B 304

Patent

active

049898418

ABSTRACT:
A metal continuously melting and retaining furnace including a retaining chamber which retains therein a molten metal fed from a melting chamber, a ladling chamber from which the molten metal is ladled out, and a treating chamber between the retaining and ladling chambers and having means of producing bubbles of a molten metal-refining gas and means of stirring the molten metal. A molten metal inlet port between the retaining chamber and the treating chamber and a molten metal outlet port between the treating chamber and the ladling chamber are disposed so as not to face directly to each other. In addition, a bubble baffle plate stands on the bottom surface of the treating chamber near the molten metal outlet port so as to oppose thereto. This makes it possible to provide a molten metal with a good yield, which is refined to a higher degree and is most suitable for producing a high quality thin cast product by casting. This also inhibits molten metal refining gas bubbles with inclusions entrained therein from flowing into the molten metal outlet port to reliably prevent reduction in the degree of refining the molten metal in the ladling chamber.

REFERENCES:
patent: 4426068 (1984-01-01), Gimond et al.
patent: 4443004 (1984-04-01), Hicter et al.
patent: 4784374 (1988-11-01), Pelton

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