| 摘要 |
The adherence of nickel-plated steel sheets, which is liable to occur when the nickel-plated steel sheets are thermally treated in an annealing furnace so as to disperse the nickel into the steel sheets, is prevented. A surface treated steel sheet characterized in that the steel sheet is obtained by plating both surfaces of a cold rolled steel sheet with nickel, plating one surface only of this nickel plated steel sheet with tin, immersing the resultant steel sheet in a bath containing ortho-sodium silicate as a main component or electrolyzing the same steel sheet in the same bath, to deposit silicon hydrate on the surface of the steel sheet, and then thermally treating the resultant steel sheet so as to disperse the nickel and tin therein. |
