Metallurgical apparatus – Means for melting or vaporizing metal or treating liquefied... – By means introducing treating material
Patent
1987-10-01
1988-08-23
Rosenberg, Peter D.
Metallurgical apparatus
Means for melting or vaporizing metal or treating liquefied...
By means introducing treating material
75 53, 75 58, C21C 700
Patent
active
047655992
ABSTRACT:
An apparatus suitable for forming a metal tube filled with powders for the treatment of a liquid metal bath is disclosed. The apparatus includes a feeding unit provided with rollers capable of unrolling a metal sheet from a roll and advancing it into a filling chamber where powders supplied from separate hoppers are charged on the sheet by a powder metering unit. The metering unit includes a device for continuous weighing of the powders to be supplied. A programmer or computer is used for calculating the required powder amounts. A roller shaping device is provided which forms the sheet into the shape of an open U-shaped channel. A roller forming means is also provided for closing the U-shaped channel to form a continuous tube by partially overlapping the side flanges of the U-shaped tube. Finally, a guiding and introduction device moves the just-formed tube under the surface of the molten liquid bath in the ladle.
REFERENCES:
patent: 4126446 (1978-11-01), Knorre
patent: 4363470 (1982-12-01), Ives
patent: 4364770 (1982-12-01), Douchy
patent: 4486227 (1984-12-01), Douchy
Kinglor-Ltd.
Rosenberg Peter D.
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