MEMBER HAVING SLIDE CONTACT SURFACE AND ITS PRODUCTION METHOD

• Main Authors: KAMIKAWA MITSURU, KOSUGI MASAKI
• Format: Patent
• Language: English
• Published: 17.02.2005
• Edition: 7
• Subjects: CASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WORKING METALLIC POWDER

PROBLEM TO BE SOLVED: To secure heat check resistance, wear resistance, and galling resistance in the slide contact surface of a member such as a die for forging with which a prescribed member is brought into slide contact. SOLUTION: The surface of a base metal 12 consisting of steel is provided with a metallic layer 14. The first layer 16 composing the metallic layer 14 consists of a Ni-P alloy, and is formed by a plating method. Further, graphite as a lubricant is packed into the pores of the second layer 18. When the die 10 for forging is used, the graphite passes through the pores of the third layer 20 having a relative density higher than that of the second layer 18 and also set to the value equal to or lower than that of the first layer 16, and is drawn out to to the surface of the third layer 20. COPYRIGHT: (C)2005,JPO&NCIPI