Patents by Inventor Hengcheng Liao

Hengcheng Liao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cast aluminum alloy for structural components
    Patent number: 9771635
    Abstract: An aluminum alloy that can be cast into structural components wherein the alloy has reduced casting porosity, improved combination of mechanical properties including tensile strength, fatigue, ductility in the cast condition and in the heat treated condition.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: September 26, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qigui Wang, Hengcheng Liao
  • Apparatus and method for degassing cast aluminum alloys
    Patent number: 8870999
    Abstract: A ladle that can melt and freeze castable metal in a specific manner so that high quality liquid metal and metal alloys may be produced with minimum oxide and hydrogen content. Upon introduction of a quantity of molten metal into the ladle, staged heating and cooling of the molten metal promotes the liberation of previously-dissolved gases from the castable metal, resulting in significant decreases in as-cast porosity.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: October 28, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Qigui Wang, Hengcheng Liao, Lei Zhao, Ye Pan
  • CAST ALUMINUM ALLOY FOR STRUCTURAL COMPONENTS
    Publication number: 20140017115
    Abstract: An aluminum alloy that can be cast into structural components wherein the alloy has reduced casting porosity, improved combination of mechanical properties including tensile strength, fatigue, ductility in the cast condition and in the heat treated condition.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 16, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qigui Wang, Hengcheng Liao
  • APPARATUS AND METHOD FOR DEGASSING CAST ALUMINUM ALLOYS
    Publication number: 20130112042
    Abstract: A ladle that can melt and freeze castable metal in a specific manner so that high quality liquid metal and metal alloys may be produced with minimum oxide and hydrogen content. Upon introduction of a quantity of molten metal into the ladle, staged heating and cooling of the molten metal promotes the liberation of previously-dissolved gases from the castable metal, resulting in significant decreases in as-cast porosity.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 9, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qigui Wang, Hengcheng Liao, Lei Zhao, Ye Pan