Alusuisse Technology & Management Ltd.

Jean-Pierre Seppey

Bertrand Carrupt

Maurice Constantin

Eric Vuignier

Etienne Caloz

A method for automatic, vertical continuous casting of metals, in particular aluminium alloys, in a casting facility having several molds. According to the method, the liquid metal is fed from a furnace along a spout to the molds and guided, via nozzles with adjustable through-flow, to the molds which are initially closed off by the dummy blocks arranged on a lowerable casting table. The metal through-flow volume of each nozzle is adjusted individually for each mold on the basis of an initial time (t,) and an initial metal level (N,) at which adjustment of the metal level begins, in such a way that the metal in all molds at a pre-set starting time (t,) is at substantially the same starting level (N,) at which the casting table starts being lowered for the production of the metal strands. The metal level (N) is adjusted simultaneously during filling between the initial level (N,) at the initial time (t,) and the starting level (N,) at the starting time (t,) in all molds on the basis of time (t) in accordance with a set-point curve N&equals;f(t) which is identical for all molds. The slope dN/dt of the set-point curve is greater in a range starting from the initial level (N,) and smaller in a range in relation to the starting level (Ns) than the mean slope (N,&minus;N,)/(t,&minus;t,) between the initial and the starting level.

Method for vertical continuous casting of metals

Adjustable continuous casting mold for manufacturing continuously cast ingots of different dimensions, having a mold frame with a pair of stationary facing side walls and a pair of facing end walls, where at least one end wall can be displaced and each side wall and end wall features a primary coolant chamber and, connected to the primary coolant chamber, a plurality of primary coolant channels for jetting coolant onto the ingot material. The displaceable end walls exhibit a secondary coolant chamber and, connected to the secondary coolant chamber, a plurality of secondary coolant channels for jetting additional coolant onto the continuously cast material, the secondary coolant channels being arranged such that the coolant emerging from them strikes the continuously cast material after, with respect to the direction of flow of the cast material, the coolant from the primary coolant channels.

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Champlan, Switzerland

Jean-Pierre Seppey