B - Operations – Transporting – 23 – D
Patent
B - Operations, Transporting
23
D
13/22
B23D 3/00 (2006.01) B23K 20/04 (2006.01)
Patent
CA 1151818
METHOD FOR PRODUCING CLAD STEEL PLATE Abstract of the Disclosure: A clad steel plate is produced by superposing a backing steel and a cladding metal having their contact surfaces cleaned, with a metallic foil or a metallic plating layer applied onto the contact surface of at least one of the back- ing steel and the cladding metal interposed as an intermediate layer between them, welding the superposed backing steel and cladding metal together along contact lines between their peripheral edges into a composite slab leaving at least one portion of the contact lines unwelded, exhausting any air remaining between the contact surfaces of the backing steel and the cladding metal by cold rolling or cold pressing under a light reduction, force welding the one or more unwelded portions on the peripheral edges together to isolate the contact surfaces from the external atmosphere, heating the composite slab to a rolling temperature, and hot-rolling it.
367729
Hayashi Chihiro
Miura Minoru
George H. Riches And Associates
Sumitomo Metal Industries Ltd.
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