| 摘要 |
PURPOSE:To provide superior corrosion resistance to a body to be treated by successively forming an Ni-P film and an Ni-W-P film on the surface of the body by electroless plating after optionally forming an under-layer on the surface of the body. CONSTITUTION:An Ni-P film of 2-50mum thickness having >=2wt%, preferably 7-12wt% P content is formed on the surface of a body to be treated by electroless plating after optionally forming an under-layer on the surface of the body. An Ni-W-P film of 1-20mum thickness having 10-20wt% W content and 5- 12wt% P content is then formed on the Ni-P film by electroless plating. The plated body may be heat treated. |
