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冷間圧延鋼板を連続的に搬送しながら溶融めっき浴に浸漬することで溶融めっき層を形成し、前記冷間圧延鋼板が前記溶融めっき浴から引き出された直後に、その表面に金属化合物かつ／または金属イオンを含有する水系塗材を塗布し、溶融めっき処理直後の余熱で前記水系塗材を乾燥することによって、前記冷間圧延鋼板の表面に前記溶融めっき層とその上層に金属化合物の薄膜層を連続的に形成させることを特徴とする表面処理めっき鋼板の製造方法。
A cold-plated steel sheet is immersed in a hot-dip plating bath while continuously conveying the cold-rolled steel sheet, and immediately after the cold-rolled steel sheet is drawn out of the hot-dip bath, a metal compound and / or or an aqueous coating material containing the metal ions is applied, a thin film of the by drying an aqueous coating material, the molten plating layer between the metal compound thereon on the surface of the cold-rolled steel sheet at a residual heat immediately after hot dipping process A method for producing a surface-treated plated steel sheet, wherein the layer is continuously formed.前記水系塗材中に、アクリル系エマルジョン、かつ／または、ポリウレタン系ディスパージョンを含有することを特徴とする請求項１に記載の表面処理めっき鋼板の製造方法。
The method for producing a surface-treated plated steel sheet according to claim 1,wherein the water-based coating material contains an acrylic emulsion and / or a polyurethane dispersion.前記金属化合物の薄膜層の上層に更に樹脂塗材を塗布し焼付け乾燥することで樹脂薄膜層を形成することを特徴とする請求項１又は２に記載の表面処理めっき鋼板の製造方法。The method for producing a surface-treated plated steel sheet according to claim 1 or 2, wherein a resin thin film layer is formed by further applying a resin coating material on the upper layer of the metal compound thin film layer and baking and drying.前記樹脂塗材が、アクリル系エマルジョン、かつ／または、ポリウレタン系ディスパージョンであることを特徴とする請求項３に記載の表面処理めっき鋼板の製造方法。
The method for producing a surface-treated plated steel sheet according to claim 3, wherein the resin coating material is an acrylic emulsion and / or a polyurethane dispersion .前記樹脂薄膜層中に金属化合物が含まれることを特徴とする３又は４に記載の表面処理めっき鋼板の製造方法。
The method for producing a surface-treated plated steel sheet according to 3 or 4, wherein the resin thin film layer contains a metal compound .前記樹脂薄膜層中に含まれる金属化合物が、Ｚｒ酸化物であることを特徴とする請求項５に記載の表面処理めっき鋼板の製造方法。
The method for producing a surface-treated plated steel sheet according to claim 5, wherein the metal compound contained in the resin thin film layer is a Zr oxide .前記金属イオンが、Ｚｒイオンであることを特徴とする請求項１乃至６のいずれか１項に記載の表面処理めっき鋼板の製造方法。
The method for producing a surface-treated plated steel sheet according to any one of claims 1 to 6, wherein the metal ions are Zr ions .請求項１乃至７のいずれか１項に記載の表面処理めっき鋼板の製造方法で製造されることを特徴とする表面処理めっき鋼板。It manufactures with the manufacturing method of the surface treatment plating steel plate of any one of Claims 1 thru | or 7. The surface treatment plating steel plate characterized by the above-mentioned.
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