Patents Assigned to Technogenia S.A. societe anonyme
  • Process for producing parts with an abrasion-proof surface
    Patent number: 5261477
    Abstract: The process according to the invention involves using an infiltration technique with a binder metal 16 in a layer filled with grains of melted tungsten carbide 15, the layer being arranged between the walls of a mould 13 and a core 2, the walls of the mould being made of foundry sand bonded by resins. The invention makes it possible to reduce the cost of the infiltration process.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: November 16, 1993
    Assignee: Technogenia S.A. societe anonyme
    Inventors: Pierre Brunet, Guy Maybon, Gerard Pizzini