Patents Assigned to Metso Powdermet Oy
  • Patent number: 7284590
    Abstract: A method for manufacturing cast components, in which method the cast mold and/or macroscopic inserts to be placed either totally or partly inside thereof are left totally or partly as a part of the final component to be used, after the casting the piece is further treated with temperature and/or pressure in order to improve the compactness of both the cast materials and the materials acting as inserts and to improve the bond between the cast material and the solid material attached thereto, and the portion of the solid or partly solid material (inserts) to be placed into the cast mold and remaining in the final component, inclusive the portion of the mold eventually remaining in the final component, of the weight of the total component is more than 3 percent by weight.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: October 23, 2007
    Assignee: Metso Powdermet Oy
    Inventor: Jari Liimatainen
  • Publication number: 20060108088
    Abstract: A method for manufacturing cast components, in which method the cast mold and/or macroscopic inserts to be placed either totally or partly inside thereof are left totally or partly as a part of the final component to be used, after the casting the piece is further treated with temperature and/or pressure in order to improve the compactness of both the cast materials and the materials acting as inserts and to improve the bond between the cast material and the solid material attached thereto, and the portion of the solid or partly solid material (inserts) to be placed into the cast mold and remaining in the final component, inclusive the portion of the mold eventually remaining in the final component, of the weight of the total component is more than 3 percent by weight.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 25, 2006
    Applicant: Metso Powdermet Oy
    Inventor: Jari Liimatainen
  • Publication number: 20040142200
    Abstract: A method of manufacturing erosion-resistant wearing parts and a wearing part are disclosed, whereby the wearing part manufactured according to the invention comprises at least one hard powder composition (A) and at least one ductile powder composition (B) that together are densified in a single pressing step into an entirely dense product. According to the method, the temperature coefficient of the hard powder composition (A) is controlled by keeping the temperature coefficient of the hard powder composition smaller than that of the encapsulating powder composition (B), whereby the hard powder composition (A), with the exception of the outer erosion-subjected surface of the wearing part, remains entirely encapsulated by powder composition (B) so effectively that the imposed eroding forces cannot essentially extrude the hard powder composition (A) out from the wearing part through its erosion-subjected outer surface.
    Type: Application
    Filed: September 2, 2003
    Publication date: July 22, 2004
    Applicant: Metso Powdermet Oy
    Inventors: Jari Liimatainen, Mikko Malkamaki, Kari Peltomaki, Jukka Lehtonen
  • Patent number: 6561258
    Abstract: A maraging steel for use as a mold steel is disclosed. In general, the use of maraging steels in molds is limited by the fact that the martensitic microstructure is not stable at temperatures above 480° C. The precipitate hardening maraging type steel according to the invention contains titanium, molybdenum, cobalt, chromium and nickel and has, in addition to high strength, good ductility, small thermal expansion coefficient and good thermal conductivity, a significantly better thermal stability than other maraging steels, which makes it suitable for use as a mold material particularly in pressure casting.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: May 13, 2003
    Assignee: Metso Powdermet Oy
    Inventor: Mikko Kumpula