Patents Assigned to Proengco Tooling AB
  • Iron-base alloy containing chromium-tungsten carbide and a method of producing it
    Patent number: 7442261
    Abstract: In a method of producing an iron-based alloy containing chromium carbide, pieces of cemented carbide are added to an iron-based melt containing carbon, e.g. cast iron. Chromium, which regulates the solution of WC into the melt, is also added. The molten alloy is then cast. An alloy comprising chromium-tungsten-carbide in a ferrous matrix is produced. Uses of the alloy are claimed.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: October 28, 2008
    Assignee: Proengco Tooling AB
    Inventors: Mikael Andersson, legal representative, Henrik Andersson, legal representative, Helena Andersson, legal representative, Anders Nilsson, Jan-Eric Ståhl, Carl-Håkan Andersson