| 摘要 |
PROBLEM TO BE SOLVED: To provide an easily and simply performable method for surface treatment of a metal material capable of improving various properties in the surfaces of various metal materials. SOLUTION: The method comprises subjecting a metal material such as an Fe alloy, a Ni alloy and an Al alloy to a heat treatment in the presence of an amino-based resin such as a melamine-formaldehyde resin. The amino-based resin may be present with the metal material by a method wherein the resin is applied to the surface of the metal material, directly or via a solvent such as water, or wherein the amino-based resin is placed in a container, and the container and the metal material are placed in a heat treatment furnace. Further, the supply of a nitriding gas at the time of heat treatment allows the performance of a nitriding treatment being several times more effective than a conventional treatment, and a subsequent supply of a carburizing agent allows the performance of a carburizing treatment. COPYRIGHT: (C)2005,JPO&NCIPI
|
