| 摘要 |
<p>A galvanized steel sheet having excellent press-formability is obtained. The steel sheet has an organic inorganic complex coating on the surface thereof which contains an organic resin and a crystalline layered substance and has an average film thickness of 0.10 to 2.0 µm. The organic inorganic complex coating contains the crystalline layered substance in a solid content of not less than 0.5 parts by weight with respect to 100 parts by weight of the solid content of the organic resin. For example, the crystalline layered substance is preferably a layered double hydroxide represented by [M 2+ 1-x M 3+ x (OH) 2 ][A n- ] x/n ·zH 2 O wherein M 2+ is one, or two or more selected from Mg 2+ , Ca 2+ , Fe 2+ , Ni 2+ and Zn 2+ , M 3+ is one, or two or more selected from Al 3+ , Fe 3+ and Cr 3+ , and A n- is one, or two or more selected from OH - , CO 3 2- , Cl - and (SO 4 ) 2- .</p> |
