Zinc-based plated steel sheet
[Object] To provide a zinc-based plated steel sheet excellent in coating film adhesiveness after hot pressing more conveniently. [Solution] A zinc-based plated steel sheet according to the present invention comprises: a zinc-based plated steel sheet that is a base metal; and a surface treatment layer formed on at least one surface of the zinc-based plated steel sheet, in which the surface treatment layer contains one or more oxides selected from titanium oxide, nickel oxide, and tin(IV) oxide each having a particle size of more than or equal to 2 nm and less than or equal to 500 nm, in a range of more than or equal to 0.2 g/m 2 and less than or equal to 2 g/m 2 per one surface.
1. A zinc-based plated steel sheet comprising:
a zinc-based plated steel sheet that is a base metal; and
a surface treatment layer formed on at least one surface of the zinc-based plated steel sheet, wherein
the surface treatment layer contains one or more oxides selected from titanium oxide, and nickel oxide each having a particle size of more than or equal to 2 nm and less than or equal to 100 nm, in a range of more than or equal to 0.2 g/m 2 and less than or equal to 2 g/m 2 per one surface, and
the surface treatment layer further contains one or more vanadium-containing compounds and/or one or more copper-containing compounds in the following range as a content per one surface, and contains resin,
the one or more vanadium-containing compounds: more than or equal to 0.0007 g/m 2 and less than or equal to 0.01 g/m 2 on a V basis,
the one or more copper-containing compounds: more than or equal to 0.0016 g/m 2 and less than or equal to 0.02 g/m 2 on a Cu basis.
2. The zinc-based plated steel sheet according to claim 1 , wherein
the surface treatment layer further contains one or more phosphorus-containing compounds, one or more aluminum-containing compounds, one or more silicon-containing compounds, and/or one or more chromium-containing compounds in the following range as a content per one surface,
the one or more phosphorus-containing compounds: more than or equal to 0.0 g/m 2 and less than or equal to 0.01 g/m 2 on a P basis,
the one or more aluminum-containing compounds: more than or equal to 0.0 g/m 2 and less than or equal to 0.005 g/m 2 on an Al basis,
the one or more silicon-containing compounds: more than or equal to 0.0 g/m 2 and less than or equal to 0.005 g/m 2 on a Si basis, and
the one or more chromium-containing compounds: more than or equal to 0.0 g/m 2 and less than or equal to 0.01 g/m 2 on a Cr basis.
3. The zinc-based plated steel sheet according to claim 1 , wherein
the particle size of each of the one or more oxides selected from titanium oxide, and nickel oxide is more than or equal to 5 nm and less than or equal to 50 nm.
4. The zinc-based plated steel sheet according to claim 1 , wherein
the content of the one or more oxides selected from titanium oxide, and nickel oxide is more than or equal to 0.4 g/m 2 and less than or equal to 1.5 g/m 2 per one surface.
5. The zinc-based plated steel sheet according to claim 1 , wherein
the one or more oxides are titanium oxide.
6. The zinc-based plated steel sheet according to claim 1 , wherein
the zinc-based plated steel sheet is a zinc-based plated steel sheet for hot pressing.