Method and the directional solidification of a molten metal and a casting apparatus for the practice thereof

摘要

A casting apparatus has within a heating chamber (6) a mold (5) which can be moved out of the heating chamber (6) into a molten cooling metal (10) disposed beneath it. As heat insulation between the heating chamber (6) and the molten cooling metal (10) a thermal insulation layer (13) floating on the molten cooling metal is provided through which the mold (5) dips into the molten cooling metal (10). To prevent clumping within the thermal insulation layer (13) a rake or stirrer (19) is provided, which is driven by a shaker (17) and whisks or stirs the thermal insulation layer.