Abstract: A pressure booster (1) for a die casting machine, comprises a pressure booster piston (4) having a valve seat (7), wherein the pressure booster piston (4) interacts with the valve seat (7) to form a shut-off or non-return valve (6). The valve body (24) is displaceable to a limited extent in the axial direction (a) and can be retained hydraulically in a starting position.
Abstract: The invention relates to a process for producing metal foam and to a metal body produced using this process. The object is achieved by a process for producing metal foam by adding a blowing agent to a metal melt, wherein the metal melt is introduced into the die cavity of a metal die-casting machine and is foamed using a blowing agent which releases gases and is solid at room temperature.
Type:
Grant
Filed:
January 30, 2002
Date of Patent:
July 12, 2005
Assignees:
Goldschmidt AG, Buehler Druckguss AG
Inventors:
Wilfried Knott, Benno Niedermann, Manfred Recksik, Andreas Weier
Abstract: The invention relates to a process for producing metal/metal foam composite components, wherein a flat or shaped metal part is introduced into the cavity of a die, the cavity being at least partially delimited by the metal part, and then a mixture comprising a metal melt and a blowing agent which is solid at room temperature is introduced into the cavity, where it is foamed.
Type:
Grant
Filed:
June 5, 2002
Date of Patent:
April 5, 2005
Assignees:
Goldschmidt AG, Buehler Druckguss AG
Inventors:
Wilfried Knott, Benno Niedermann, Manfred Recksik, Andreas Weier
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