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.

Abstract: A cleaning device (1), for a die casting device, comprising: a housing (2) having an inlet (3) for medium to be cleaned; a cyclone (4) arranged in the housing (2) downstream of the inlet (3); a unit (5), which is arranged on the housing (2), projects into the cyclone (4), and has at least one opening (8) at the lower end of the unit, preferably in the base face of the unit. A medium to be cleaned enters the unit (5) through the opening (6); a filter insert (7) is arranged in the unit (5); and an outlet (8) is arranged downstream of the filter insert (7). A device for producing cast parts and a method for producing cast parts, preferably from metal or metallic alloys, with such a device using vacuum casting, and to the use of the cleaning unit and of the die casting device in such method.

Abstract: Underwater compressor arrangement and underwater process fluid conveying arrangement outfitted therewith. The underwater compressor arrangement has a housing, a turbocompressor with a compressor rotor, and a rotary drive unit with a drive rotor. The turbocompressor and rotary drive unit are arranged in the housing, and the compressor rotor is in rotationally driving connection with the drive rotor. The housing is hermetically sealed with the exception of operating connections for the turbocompressor and rotary drive unit, The compressor rotor is rotatably supported in the housing by a rolling element bearing arrangement.

Abstract: An electric machine has a housing with an inner circumference; a stator which is inserted into the housing so that an outer circumference of the stator is located opposite the inner circumference of the housing, a clearance fit being formed between the inner circumference of the housing and the outer circumference of the stator; at least one fastening element, each fastening element connects the stator to the housing by positive engagement so that the stator is held at the housing so as to be fixed with respect to rotation relative to it; and a rotor which is rotatably mounted in the housing in a radial direction of the electric machine inwardly of the stator.