Patents Assigned to Societe Nobel Bozel
  • Ferroalloy for the treatment of cast metals and process
    Patent number: 4432793
    Abstract: A ferroalloy for the treatment by inoculation of cast iron with spheroidal graphite comprises from 0.005 to 3% by weight of at least one metal of the rare earth group and from 0.05 to 3% by weight of at least one element taken from the group comprising bismuth, lead and antimony, the remainder being essentially the silicon and iron normally present in the ferroalloys used for inoculating the cast metals.This ferroalloy may be used for the treatment by inoculation of cast metals with spheroidal graphite having to be used rough cast.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: February 21, 1984
    Assignee: Societe Nobel Bozel
    Inventors: Pierre Hilaire, Franz Lietaert, Claude Staroz, Walter Schumacher