Importance

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Abstract

A method of determining the position of at least one opening (9, 10) in a casting chamber (6) of a die-casting machine (1), wherein a casting plunger (7) is contained in the casting chamber (8), The casting plunger (7) is movable into a position in which communication between the opening (9, 10) and the casting chamber (6) is no longer possible. It is determined, on the basis of the vacuum in the connecting line (14, 15), when the casting plunger (7) has reached the position in which communication, between the opening (9, 10) and the casting chamber (6), is no longer possible. A method of operating a vacuum die-casting machine, wherein a casting curve, for performing a casting cycle, is determined by specified and/or experimentally determined characteristic values of the die-casting machine by a computer program for operating the die-casting machine, and to a corresponding computer program product.

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First Claim