PRODUCTION OF ALUMINUM CASTING SLAG BY RAPID COOLING AND SOLIDIFYING AND APPARATUS FOR PRODUCTION USED THEREFOR AS WELL AS SOLIDIFYING ROLL AND MOLDING ROLL FOR THE APPARATUS FOR PRODUCTION

摘要

PROBLEM TO BE SOLVED: To obtain casting slag of a thick near net shape with a single roll without the useless consumption of Al in a shortened machining stage by scraping up the melt of Al in a nozzle into the many casting cavities on the outer periphery of a rotated solidifying roll, rapidly cooling the melt with the solidifying roll 2 and discretely taking the formed casting slag out of the casting cavities. ;SOLUTION: While the solidifying roll 2 provided with the many casting cavities 1 on the outer periphery is rotated, the melt 4 of the aluminum in the nozzle 3 is scraped up into the casting cavities 1 and the melt 4 is rapidly cooled by the solidifying roll 2, by which the casting slag 5 is cast. At this time, the molten metal 4 which is scraped up into the casting cavities 1 and is protruded from the casting cavities 1 is also rapidly cooled to form a sheet 8 of Al, by which the casting slag 5 is cast to a state of connecting and linking the slag together. In such a case, the free solidified surface 6 of the sheet 8 in a semi-solidified state in the casting cavities 1 is pressurized by the molding roll 7 brought into proximity to the outer periphery of the solidifying roll 2 and is thus cleanly finished.;COPYRIGHT: (C)2000,JPO