In-situ conditioning of a strip casting roll

Details In-situ conditioning of a strip casting roll In-situ conditioning of a strip casting roll

1995-10-06

1997-07-29

Batten, Jr., J. Reed

Metal founding

Process

Shaping liquid metal against a forming surface

164121, 164158, 164428, 164429, 164480, 451426, B22D 1106

Patent

active

056514131

ABSTRACT:
A strip caster (10) for producing a continuous strip (24) has a tundish (12) for containing a melt (14) and a pair of horizontally disposed water cooled casting rolls (22). The casting rolls are juxtaposed relative to one another for forming a pouring basin (18) for receiving the melt through a teeming tube (16) thereby establishing a meniscus (20) between the rolls for forming a strip (24). The melt is protected from the outside air by a non-oxidizing gas passed through a supply line (28) to a sealing chamber (26). Devices (29) for conditioning the outer peripheral chill surfaces of the casting rolls includes grit blasting nozzles (30A, 30B, 30C, 30D), a collection trough (32) for gathering the grit, a line (34) for recycling the grit to a bag house (36), a feeder (38) and a pressurized distributor (40) for delivering the grit to the nozzles. The conditioning nozzles remove dirt, metal oxides and surface imperfections providing a clean surface readily wetted by the melt.

REFERENCES:
patent: 2059915 (1936-11-01), Ruch
patent: 2204636 (1940-06-01), Turnbull
patent: 2669809 (1954-02-01), McGrath
patent: 3703057 (1972-11-01), Krausz et al.
patent: 3984943 (1976-10-01), Kono et al.
patent: 4708194 (1987-11-01), Mohn
patent: 4951736 (1990-08-01), Yukumoto et al.
patent: 5103895 (1992-04-01), Furuya et al.

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