| 摘要 |
　Provided is a method for manufacturing a galvanized steel sheet, with which sliding friction during press-molding is low, and degreasing properties are exceptional even under severe alkali degreasing conditions at low temperature and small line length, and with which is it possible to minimize dissolving of formed oxide films, and to minimize the occurrence of irregularities caused by the washing processes. The method comprises: an oxide layer formation step for bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the sheet for 1-60 seconds, and thereafter performing a rinse; and a neutralization treatment step for bringing the surface of the oxide layer formed during the oxide layer formation step into contact with an alkaline aqueous solution and holding the sheet in this state for 0.5 seconds or longer, then performing rinsing and drying. The alkaline aqueous solution contains 0.01 g/L or more of P ions, and 0.1 g/L or more of carbonate ions. |
