Patents Assigned to Diffusion Alloys Ltd.
  • Method for removing at least one area of a layer of a component consisting of metal or a metal compound
    Patent number: 7429337
    Abstract: The invention relates to a method for removing an area of a layer of a component consisting of metal or a metal compound. According to prior art, corrosion products of a component are removed in a first step by applying a molten mass or by heating in a voluminous powder bed. This requires high temperatures or a large amount of space. The inventive method for removing corrosion products of a component is characterized in that a cleaning agent is applied locally, which removes the corrosion products by means of a gaseous reaction product.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: September 30, 2008
    Assignees: Siemens Aktiengesellschaft, Diffusion Alloys, Ltd.
    Inventors: Norbert Czech, Andre Jeutter, Adrian Kempster, Ralph Reiche, Rolf Wilkenhöner
  • Method for removing at least one area of a layer of a component consisting of metal or a metal compound
    Patent number: 7138065
    Abstract: The invention relates to a method for removing an area of a layer of a component consisting of metal or a metal compound. According to prior art, corrosion products of a component are removed in a first step by applying a molten mass or by heating in a voluminous powder bed. This requires high temperatures or a large amount of space. The inventive method for removing corrosion products of a component is characterized in that a cleaning agent is applied locally, which removes the corrosion products by means of a gaseous reaction product.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: November 21, 2006
    Assignees: Siemens Aktiengesellschaft, Diffusion Alloys Ltd.
    Inventors: Norbert Czech, Andre Jeutter, Adrian Kempster, Ralph Reiche, Rolf Wilkenhöner
  • Refurbishing of corroded superalloy or heat resistant steel parts
    Patent number: 6217668
    Abstract: A corroded superalloy or heat resistant steel part, in particular a gas turbine component like a gas turbine blade, having a surface with products or corrosion is refurbished. The invention the surface is cleaned, in particular mechanically or chemically, and an aluminide coating is applied to the cleaned surface. Subsequently, the aluminide coating is removed, whereby all products of corrosion which have still remained in the part to be refurbished are removed as well.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: April 17, 2001
    Assignees: Siemens Aktiengesellschaft, Diffusion Alloys Ltd.
    Inventors: Norbert Czech, Adrian Kempster