Patents Represented by Attorney, Agent or Law Firm Israel Blum, Esq.
  • Surface treatment process for mechanical parts subject to wear and corrosion
    Patent number: 6645315
    Abstract: In a surface treatment process for mechanical parts, for conferring on the parts a high resistance to wear and corrosion and a roughness propitious to lubrication, nitriding of the part is followed consecutively by oxidation of the part. The nitriding is applied by immersing the part in a molten salt nitriding bath free of sulfur-containing species at a temperature from approximately 500° C. to approximately 700° C. The oxidation is carried out in an oxidizing aqueous solution at a temperature less than approximately 200° C.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: November 11, 2003
    Assignee: Centre Stephanois de Recherches Mecaniques Hydromecanique et Frottement
    Inventors: Stéphane Chomer, Stephan Teil