B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
22/180, 13/20
B23K 20/04 (2006.01) B23K 20/233 (2006.01)
Patent
CA 1208879
A B S T R A C T Method of cladding one or both faces of a relatively hot cast aluminium core strip with a relatively cool Al cladding strip, drawn from a coil of such strip, in which the hot core strip and cool cladding strip are bonded together in the nip of a rolling mill. During its passage to the mill the hot core strip is bent over a first single roll, while the cool cladding strip is bent around a second single roll in advance of the first single roll and is reversely bent and brought into contact with the core strip at the first single roll, the cladding strip being adjusted to travel at a different speed to the core strip whereby the surface of the core strip and cladding strip exercise abrading action on each other. The differential speeds of the core strip and cladding strip are preferably achieved by adjustment of the braking torque applied to the cladding strip coil, as it is unwound.
436418
Alcan International Limited
Fetherstonhaugh & Co.
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