PURPOSE: To speed up and simplify the exchange of casting molds, to permit small lot production of different diameters and to improve productivity by exchanging the casting mold with a dummy bar-contg. casting mold after closing of a gate, welding the rear end of the already cast ingot and dummy bar and restarting casting.
CONSTITUTION: After the gate 4 of a tundish 1 for storing a molten metal 2 is closed, the used casting mold 7 on a carriage 12a is exchanged with the dummy bar-contg. casting mold 16 on a carriage 12b. The rear end of the already cast ingot 10 and the dummy bar 16 are welded by a welding machine 15 and thereafter the horizontal and continuous casting is restarted by opening the gate 4. The exchange of the casting mold in the breakout stage is made quick and simple, by which the productivity is improved and the small lot production of different diameters is made possible. The exchange of the casting molds may be executed by any of methods for exchanging the casting molds with vertically supporting side arms by swiveling the casting molds with each other, exchanging the casting molds having arms for horizontally and pivotally supporting the molds in a casting direction at both ends by swiveling the same or sliding the casting molds supported by cross slide gates.
TAKEDA SHUHEI
HONDA AKIRA
YANAGIBASHI YASUO
KOMORI SHIGEKI
TSURU MASAHIRO
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