abstract |
(57) [Abstract] [Problem] On the plating surface of a zinc-based plated steel sheet, It forms a film with excellent press formability, spot weldability and adhesiveness. At least one of first Fe sulfate and first Fe nitrate, and at least one of Ni sulfate and Ni nitrate are contained, and the sum of Fe content and Ni content is 0.1 to 3. At 0 mol / l, Fe content (mol / 1) and the Ni content (mol / l) to the sum of the Fe content (mol / l) is in the range of 0.004 to 0.9, and the pH is 1.0 to 3. A Fe-Ni-O-based film is formed on the surface of the plating layer of the zinc-based plated steel sheet by immersing the zinc-based plated steel sheet in an aqueous solution in the range of 5 and a temperature of 20 to 70 ° C. Let |