Patents Assigned to RHEINFELDEN ALLOYS GMBH & CO. KG
  • Patent number: 10669615
    Abstract: An aluminium, magnesium and silicon-based die casting alloy having 5.0-7.0 wt. % magnesium, 1.5-7.0 wt. % silicon, 0.3-0.8 wt. % manganese, 0.03-0.5 wt. % iron, 0.01-0.4 wt. % molybdenum, 0.01-0.3 wt. % zirconium, 0-0.25 wt. % titanium, 0-0.25 wt. % strontium, 0-250 ppm phosphorus, 0-4 wt. % copper and 1-10 wt. % zinc, the remainder being aluminium and inevitable impurities.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: June 2, 2020
    Assignee: Rheinfelden Alloys GmbH & Co. KG
    Inventor: Stuart Wiesner
  • Publication number: 20140219860
    Abstract: A process for producing formed parts made of an aluminum alloy, including the steps of exposing the aluminum alloy to high shearing forces in a mixing and kneading machine, feeding the liquid aluminum alloy to the working space at one end of the housing and, at the other end of the housing, removing from the working space the liquid aluminum alloy now formed as a partially solid aluminum alloy with a predefined solids content, and processing the partially solid aluminum alloy with the predefined solids content into formed parts, wherein the solids content of the aluminum alloy in the working space is set to the predefined solids content by cooling and heating the working space in a targeted manner. The mixing and kneading machine includes a housing with a working space, a worm shaft including kneading blades and axial passage openings, and kneading projections.
    Type: Application
    Filed: August 8, 2012
    Publication date: August 7, 2014
    Applicant: Rheinfelden Alloys GmbH & Co. KG
    Inventor: Rudiger Franke
  • Publication number: 20140117627
    Abstract: An assembly for sealing a shaft, which shaft is arranged in a container filled with a liquid melt consisting of aluminum or an aluminum alloy, passes through an opening in a wall of the container, and rotates about a shaft axis and/or moves back and forth in the direction of the shaft axis, including at least one annular sealing element that encompasses the shaft. The at least one annular sealing element is made of carbon, a ceramic material, or a metal material and is arranged outside of the container, and the shaft is provided with a coating made of carbon, a ceramic material, or a metal material in the encompassing area of the at least one annular sealing element, wherein the wear resistance of the coating on the shaft is the same as or higher than the wear resistance of the at least one annular sealing element.
    Type: Application
    Filed: May 9, 2012
    Publication date: May 1, 2014
    Applicant: RHEINFELDEN ALLOYS GMBH & CO. KG
    Inventor: Rudiger Franke
  • Publication number: 20130220568
    Abstract: In a process for producing die-cast parts made of an aluminum alloy, the aluminum alloy is exposed to high shearing forces in a mixing and kneading machine, is removed as partially solid aluminum alloy with a predefined solids content, is transferred into a filling chamber of a die-casting machine and is introduced into a casting mold using a piston, wherein a solids content of the aluminum alloy in a working space of the mixing and kneading machine is set to a predefined solids content by cooling and heating the working space in a targeted manner.
    Type: Application
    Filed: August 19, 2010
    Publication date: August 29, 2013
    Applicant: RHEINFELDEN ALLOYS GMBH & CO. KG
    Inventor: Rudiger Franke
  • Publication number: 20130199680
    Abstract: Aluminum die casting alloy comprising 2 to 6% by weight nickel, 0.1 to 0.4% by weight zirconium, 0.1 to 0.4% by weight vanadium, optionally up to 5% by weight manganese, optionally up to 2% by weight iron, optionally up to 1% by weight titanium, optionally total max. 5% by weight transition elements including scandium, lanthanum, yttrium, hafnium, niobium, tantalum, chromium and/or molybdenum, and aluminum as the remainder with further elements and impurities due to production total max. 1% by weight.
    Type: Application
    Filed: April 6, 2011
    Publication date: August 8, 2013
    Applicant: RHEINFELDEN ALLOYS GMBH & CO. KG
    Inventors: Diran Apelian, Makhlouf M. Makhlouf
  • Patent number: 8480822
    Abstract: The invention relates to an aluminum alloy having good electrical conductivity and good thermal conductivity for producing die-cast components, containing: 8.0 to 9.0 wt % silicon, 0.5 to 0.7 wt % iron, max. 0.010 wt % copper, max. 0.010 wt % magnesium, max. 0.010 wt % manganese, max. 0.001 wt % chromium, max. 0.020 wt % titanium, max. 0.020 wt % vanadium, max. 0.05 wt % zinc, 0.010 to 0.030 wt % strontium, and aluminum as the rest, with further elements and manufacturing-caused impurities individually max. 0.05 wt %, in total max. 0.2 wt %. The alloy is suited in particular for producing components having good electrical conductivity and good thermal conductivity in the die casting process.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: July 9, 2013
    Assignee: Rheinfelden Alloys GmbH & Co. KG
    Inventor: Peter Kohlmann
  • Publication number: 20120009081
    Abstract: The invention relates to an aluminum alloy having good electrical conductivity and good thermal conductivity for producing die-cast components, containing: 8.0 to 9.0 wt % silicon, 0.5 to 0.7 wt % iron, max. 0.010 wt % copper, max. 0.010 wt % magnesium, max. 0.010 wt % manganese, max. 0.001 wt % chromium, max. 0.020 wt % titanium, max. 0.020 wt % vanadium, max. 0.05 wt % zinc, 0.010 to 0.030 wt % strontium, and aluminum as the rest, with further elements and manufacturing-caused impurities individually max. 0.05 wt %, in total max. 0.2 wt %. The alloy is suited in particular for producing components having good electrical conductivity and good thermal conductivity in the die casting process.
    Type: Application
    Filed: March 3, 2010
    Publication date: January 12, 2012
    Applicant: RHEINFELDEN ALLOYS GMBH & CO. KG
    Inventor: Peter Kohlmann