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    • 15. 发明公开
    • Method for necking thin wall metallic containers and drawn container produced by this method
    • Verfahren zum EinhalsendünnwandigerMetalldosen und nach diesem Verfahren hergestellte Dose。
    • EP0020926A1
    • 1981-01-07
    • EP80102224.5
    • 1980-04-25
    • BALL CORPORATION
    • Atkinson, Michael Lee
    • B21D51/26B65D8/12
    • B21D51/2615B21D51/2638B65D7/48
    • The present invention relates to methods for reducing the open end of drawn and ironed containers such as beverage cans (20). It is desirable to provide a maximum reduction in diameter of the open end (36) in order to reduce the quantity of material in the lid (24); but previous forming methods have resulted in localized buckling in the reduced diameter portion (32) and/or crumpling of the transition portion. The present invention has solved the localized buckling and crumpling problems by a step wherein both the reduced diameter portion (32) and the transition portion are reformed within controlled limits to provide a new reduced diameter portion and a new curvilinear transition portion. Principal uses include the manufacture of beverage cans.
    • 本发明涉及减少诸如饮料罐(20)的拉制和熨烫容器的开口端的方法。 期望提供开口端(36)的直径的最大减小以便减少盖(24)中的材料的数量; 但是以前的成形方法已经导致在直径减小的部分(32)中的局部屈曲和/或过渡部分的皱褶。 本发明通过一个步骤解决了局部屈曲和皱缩问题,其中减小直径部分(32)和过渡部分都在受控限制内重新形成,以提供新的缩径部分和新的曲线过渡部分。 主要用途包括制造饮料罐。
    • 16. 发明申请
    • RING REINFORCEMENT FOR CONVENTIONAL DRUM
    • 传统鼓环加固
    • WO98051576A1
    • 1998-11-19
    • PCT/US1998/009286
    • 1998-05-04
    • B65D1/42B65D8/08B65D8/10B65D7/42
    • B65D7/48
    • A ring reinforcement is utilized on the circular head (H) and bottom (B) of a conventional 55 gallon drum (D). The conventional drum (D) contains a cylindrical steel body (C) having the two conventional V-shaped ribs expanded into the sidewalls at the middle of the cylinder. The drum, when either of the open-head or closed-head variety, has a circular head (H) and a circular bottom (B) closing in sealed relationship with the drum interior. This circular head (H) and circular bottom (B) are reinforced by welding a drum-reinforcing rim (R) preferably inside bulging results, enabling the barrel to be shipped with product with up to 25 psi pressure to the barrel exterior without objectional distortion.
    • 在常规的55加仑鼓(D)的圆头(H)和底(B)上使用环形增强件。 传统的滚筒(D)包含一个圆柱形钢体(C),其中两个常规的V形肋在圆筒的中间扩展到侧壁。 滚筒当开头或闭头品种中的任何一个具有与滚筒内部密封关系的圆形头部(H)和圆形底部(B)时。 该圆形头(H)和圆形底部(B)通过优选地将鼓加强边缘(R)焊接在凸出结果内而被加强,使得桶能够以高达25psi的压力运送到桶外部的产品,而没有异常失真 。