Device and process for limiting surface oxidation of glowing hot

Details Device and process for limiting surface oxidation of glowing hot Device and process for limiting surface oxidation of glowing hot

1976-11-10

1978-06-27

Lake, Roy

Metallurgical apparatus

Process

266256, 266264, C22B 2100

Patent

active

040970272

ABSTRACT:
A device limits the oxidation of the surface of hot metallic dross by preventing access of oxygen to the dross. The device includes a metal bell which is open at the bottom and can be moved vertically, a concrete base standing in a tank containing water and a shallow container for holding the dross. The bell includes a number of metallic supports projecting from its lower edge to support the bell as it rests in the water filled tank. This arrangement provides an air-tight seal for the space inside the bell and allows for compensation of any pressure change inside the bell as the hot dross consumes the limited amount of oxygen in the air

REFERENCES:
patent: 935793 (1909-10-01), Kinnear
patent: 2803449 (1957-08-01), Ludwig
patent: 2843514 (1958-07-01), Kunz, Jr.
patent: 3199853 (1965-08-01), Olsen

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