METHOD FOR MANUFACTURING SEPARATOR FOR FUEL CELL

摘要

A method for manufacturing a titanium separator to be used in a fuel cell. In this method, an oxide film ( 66 ) is removed from a surface ( 21 ) of a separator material ( 51 ) by sputtering. Then, separator material is heated within a range of 350°C.-500°C. in a nitriding atmosphere which includes a nitriding gas ( 55 ), and a plasma nitriding process is performed to form a titanium film ( 71 ) on the surface of the separator material.