| 摘要 |
PURPOSE:To obtain a composite galvanized steel sheet showing excellent adhesion property with a coating material for the can bottom, printing property of the outer surface and rust preventing property after the sheet is DI-formed by first applying a fluororesin composite galvanization on the surface of a steel sheet and then galvanizing thereon. CONSTITUTION:The above composite plated steel sheet has a fluororesin composite galvanized film containing 0.1-20vol.% of fluororesin of <=0.5mum particle size on at least one face and a galvanized film thereon. The galvanized film is provided to have 0.05-4.0g/m<2> coating weight which is <=70% of the total zinc amt, deposited on the sheet. The total amt, of zinc included in the two plating films is >=2.5g/m<2>. |
