PURPOSE: To provide a method for stably producing a cast slab for metal carrier foil base stock having extremely high productivity, by which a static electromagnetic field is formed in a continuously cast mold and different metals containing REM and no REM are supplied into the upper and lower sides and continuous casting is executed.
CONSTITUTION: In the continuously cast mold 1, DC magnetic flux in the direction crossing the thickness of the cast slab is given to over the whole width and by forming the static magnetic field zone 2 formed in the casting direction of the mold with the DC magnetic flux as the boundary, molten steel mainly containing 15-25wt% Cr, 2-9% Al is supplied into the upper side and also, the molten steel mainly containing 15-25wt% Cr, 2-9% Al and 0.05-0.2% REM is supplied into the lower side to execute continuous casting. By this method, the cast slab for metal carrier base stock without any cracking can be stably produced in high yield.
TOKUMITSU NAOKI
MIZOGUCHI SHOZO
