Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By providing – treating or protecting environment – e.g. – vacuum
Patent
1985-02-04
1986-10-14
Rosenberg, Peter D.
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
By providing, treating or protecting environment, e.g., vacuum
75 49, 75 5931, 75 65EB, C21C 710
Patent
active
046168087
ABSTRACT:
A method in which the melt is first treated with solid alloying additives and an alloying gas, and then the casting operation is effected. There is produced a differential between the pressures in the space for additional saturation with alloying gas and in the space where the casting takes place.
An apparatus for practicing the above method comprising an induction furnace in a first hermetic chamber, and a second hermetic chamber inside which there is mounted a casting mold. The induction furnace and the first hermetic chamber are interconnected with the second hermetic chamber via a movable launder. Above the one end of the movable launder there is mounted a siphon, underneath its other end there is disposed an tundish, which is mounted inside the first hermetic chamber and is gas-tightly sealed against a separating plate, attached to the second hermetic chamber containing the casting mold. The tundish is provided with a bottom for blowing-through with alloying gas.
REFERENCES:
patent: 3342250 (1967-09-01), Treppschule
patent: 4533413 (1985-08-01), Miura
Dimov, heir Dobromir I.
Dimov, heir Petar I.
Dimova, heir by Vassilka P.
Marinov Marin I.
Nikolov, deceased Ivan D.
Institute po Metaloznanie I Technologia Na Metalite
Rosenberg Peter D.
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