发明授权
- 专利标题: Resin-coated steel sheet suitable for use in thin-walled deep-drawn ironed can and steel sheet therefor
- 专利标题(中): 适用于薄壁深拉熨烫罐和钢板的树脂涂层钢板
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申请号: US09701417申请日: 2001-03-07
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公开(公告)号: US06334910B1公开(公告)日: 2002-01-01
- 发明人: Taizo Sato , Shigeyoshi Nishiyama
- 申请人: Taizo Sato , Shigeyoshi Nishiyama
- 优先权: JP10-164471 19980529
- 主分类号: C22C3806
- IPC分类号: C22C3806
摘要:
A purpose of the present invention is to provide a resin coated steel sheet with excellent forming, anti surface roughness and corrosion resistances suitable for a thinned, deep drawn and ironed can and a steel sheet therefor, particularly to material suitable for a container for beverage such as pop drink, coffee, tea, fruit juice and so on. Therefore, the material according to the present invention is a steel sheet and a resin covered steel sheet suitable for a thinned, deep-drawn and ironed can comprising Carbon in the range of 0.008% to 0.08%, Silicon of equal or less than 0.05%, Manganese of equal or less than 0.9%, Phosphorous of equal or less than 0.04%, Sulfur of equal or less than 0.04%, Aluminum of equal or less than 0.03%, Nitrogen of equal or less than 0.0035%, residual iron arid unavoidable impurities, wherein the steel sheet is characterized in that an average diameter of crystal grains of the steel sheet before covered with a resin layer is equal or less than 8 &mgr;m, an average surface roughness (Ra) is equal or less than 0.5 &mgr;m and the maximum surface roughness (Rmax) is equal or less than 5 &mgr;m.
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