All-chromium-free, passivated, colourized and galvanized steel plate and manufacturing method thereof
The invention discloses an all-chromium-free, passivated, colourized and galvanized steel plate and a manufacturing method of the all-chromium-free, passivated, colourized and galvanized steel plate, wherein the manufacturing method of the all-chromium-free, passivated, colourized and galvanized ste...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses an all-chromium-free, passivated, colourized and galvanized steel plate and a manufacturing method of the all-chromium-free, passivated, colourized and galvanized steel plate, wherein the manufacturing method of the all-chromium-free, passivated, colourized and galvanized steel plate comprises the following steps: dissolving dyes in all-chromium-free passivation solution; coating the surface of the galvanized steel plate by the all-chromium-free passivation solution dissolved with the dyes; and processing the all-chromium-free passivation solution on the surface of the galvanized steel plate so as to form an all-chromium-free, colourized and passivated film on the surface of the galvanized steel plate. |
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