PURPOSE: To produce continuously and stably a thin clad metallic sheet by supplying successively a different molten metal from a supply spout and bringing the same into contact with an underlying molten metal supplied from a preceding supply spout part after the completion of cooling and solidifying of the thin sheet of the underlying molten metal.
CONSTITUTION: Molten metal supply parts 2, 2' are disposed so as to contact with the outside peripheral surface of a water cooling roll 1 in the rotating direction of the roll at two points. After the thin layer strip 8 of the steel kind A supplied in the part 2 is thoroughly cooled down to a prescribed temp., the melt of the steel kind B supplied in the molten metal supply part 2' for the steel kind B is brought into contact with said strip. The thin layer 9 of the steel kind B which is the 2nd layer is coiled via the thin layer 8 of the steel kind A on the shell of the water cooling roll 1; at the same time, said layer is quickly cooled to solidify on the roll. The clad thin sheet consisting of such two layers is cooled on the roll surface down to the temp. at which the sheet has substantial mechanical strength and thereafter the sheet is stripped from the water cooling roll 1 by a scraper 10 and is supplied to a take-up reel, etc. The product of the thin steel sheet clad material is thus obtd.
SATO HIROAKI
KAMIO HIROSHI
FUKUDA SHUZO
