Method and apparatus for continuous strip casting

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(11)

EP 0 342 020 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	07.02.1990 Bulletin 1990/06

(43)	Date of publication A2:
	15.11.1989 Bulletin 1989/46

(21)	Application number: 89304760.5

(22)	Date of filing: 10.05.1989

(51)	International Patent Classification (IPC)⁴: B22D 11/14, B22D 11/04

(84)	Designated Contracting States:
	AT BE CH DE ES FR GB GR IT LI LU NL SE

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Priority:

10.05.1988 GB 8811028

(71)	Applicant: STELCO INC.
	Hamilton Ontario L8N 3T1 (CA)

(72)	Inventors:
	Hunter, Robert F. Burlington Ontario, L7R 1C2 (CA) LaPointe, Raymond L. Hamilton Ontario, L9A 3H1 (CA) McKay, John C. Burlington Ontario, L7L 2H8 (CA)

(74)	Representative: Walter, Douglas Ernest (GB) et al
	()

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References cited: :

(54)	Method and apparatus for continuous strip casting

(57) Metal strip is continuously cast using a primary solidification zone (245) in the form of a chamber for molten metal (224), the chamber being defined in part by an oscillating cooling wall (228) upon which solidification of the molten metal can take place, creating one face of the ultimate strip. Heat is withdrawn from the cooling wall (228) to promote solidification of the metal. A secondary solidification zone (247) adjoins the primary solidification zone and receives the solidified metal from the primary zone. The secondary zone is defined in part by a further cooling wall (268) facing oppositely from the oscillating cooling wall in the primary zone. Solidification of the molten metal takes place against the further cooling wall (268) in the second zone to create a second face of the metal strip. The metal in the secondary solidification zone is maintained against the further cooling wall to prevent liquid breakout. Heat is also withdrawn from the further cooling wall (268). The formed metal strip (273) is withdrawn from the primary zone (245) through the secondary zone (247).

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