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    • 2. 发明申请
    • LAMINATED METAL SHEET
    • 层压金属片
    • WO1993017864A1
    • 1993-09-16
    • PCT/GB1993000446
    • 1993-03-04
    • CARNAUDMETALBOX PLCHEYES, JohnBROWN, Alison
    • CARNAUDMETALBOX PLC
    • B32B15/08
    • B32B15/08B32B15/20B32B27/08B32B27/20B32B27/32B32B27/322B32B27/36B32B2307/518B32B2439/66Y10S428/91Y10T428/1355Y10T428/1359Y10T428/31681Y10T428/31692
    • A can end is formed from a metal sheet having adhered thereto a coating of a semi-crystalline thermoplastic polyester film. The can end comprises a central panel (4), a panel wall (5) dependent from the periphery of the centre panel, an annular countersink bead (6) extending outwardly from the panel wall (5), a chuck wall (7) extending upwardly from the periphery of the countersink bead and an annular seaming panel (8) extending radially from the chuck wall (7). The metal sheet comprises an aluminium alloy having a magnesium content between 0.8 % and 2.0 % by weight and manganese content between 0.6 % and 1.5 % by weight; the polyester coating has a crystallinity factor in the range 0.05 to 0.5 measured by X-ray diffraction; and the distance between the chuck wall and panel wall is between 0.85 mm and 1.0 mm as measured at a height of 0.45 mm above the lowest part of the upper surface of the countersink bead
    • 罐端部由附着有半结晶热塑性聚酯膜的涂层的金属板形成。 罐端部包括中心板(4),从中心板的周边依赖的板壁(5),从板壁(5)向外延伸的环形沉孔(6),延伸 从锪钻珠的周边向上并且从卡盘壁(7)径向延伸的环形接缝板(8)。 金属片包括镁含量为0.8%至2.0%重量的锰合金和0.6%至1.5%重量的锰含量; 聚酯涂层的结晶度因子通过X射线衍射测定为0.05〜0.5范围; 并且卡盘壁和面板壁之间的距离在0.85mm至1.0mm之间的距离,其在锪孔的上表面的最下部上方0.45mm的高度处测量