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Title: In-situ conditioning of a strip casting roll

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.
Inventors:
 [1];  [2]
  1. (Fairfield, OH)
  2. (Middletown, OH)
Issue Date:
OSTI Identifier:
871067
Assignee:
Armco Inc. (Middletown, OH) IDO
Patent Number(s):
US 5651413
Contract Number:
FC07-92ID13086
Research Org:
Armco, Inc., Middletown, OH (United States)
Country of Publication:
United States
Language:
English
Subject:
in-situ; conditioning; strip; casting; roll; caster; 10; producing; continuous; 24; tundish; 12; containing; melt; 14; pair; horizontally; disposed; water; cooled; rolls; 22; juxtaposed; relative; forming; pouring; basin; 18; receiving; teeming; tube; 16; establishing; meniscus; 20; protected; outside; air; non-oxidizing; gas; passed; supply; line; 28; sealing; chamber; 26; devices; 29; outer; peripheral; chill; surfaces; grit; blasting; nozzles; 30a; 30b; 30c; 30d; collection; trough; 32; gathering; 34; recycling; bag; house; 36; feeder; 38; pressurized; distributor; 40; delivering; remove; dirt; metal; oxides; surface; imperfections; providing; clean; readily; wetted; casting rolls; surface imperfections; outside air; continuous strip; oxidizing gas; metal oxide; metal oxides; supply line; outer peripheral; water cooled; horizontally disposed; strip casting; casting roll; strip caster; surface imperfection; cooled casting; disposed water; /164/451/

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