CONTINUOUS CASTING DEVICE FOR METAL

PURPOSE:To improve the cooling effect of molds in the stage of cooling a graphite mold for continuous casting of copper alloys with water cooling jackets by controlling the tightening of the lock bolts for the graphite mold and the water cooling jackets at the rates of deformation according to heat flux. CONSTITUTION:A melt 6 of Cu or a Cu alloy is cast continuously with a mold 2 made of graphite for continuous casting which is cooled with water cooling jackets 1 and is drawn out as a continuously cast ingot 8 by means of traction rolls 7. Here, the casting surface of the ingot 8 is improved and the speed of casting is increased by perfecting the cooling of the mold 2 by the jackets 1. To this end, lock bolts 4 are provided in plural pieces and in parallel and springs 3 for tightening are mounted in plural stages in series to one piece of the bolt 4 for the purpose of improving the tightening force of the water cooling jackets upon the mold 2. The plane disposition of the bolts 4 is so arranged that the contact pressures by tightening forces are proportional to the rates of deformation from both surfaces in terms of both of thermal stresses and structural strength according to heat flux, whereby the contact of the jackets 1 with the graphite mold is improved and the effect of cooling is improved.