公开(公告)号：EP2781278A1

公开(公告)日：2014-09-24

申请号：EP12850533.6

申请日：2012-11-16

申请人： Daiwa Can Company

发明人： TAKATOMI, Tetsuya ,  NAGASHIMA, Akira ,  SATOU, Nobuhide ,  KAWASHIMA, Norihisa ,  KANAMORI, Shinitirou ,  ARIMA, Masahito ,  SATOU, Ayumu

IPC分类号： B21D51/26 ,  B65D8/04 ,  B65D23/02

CPC分类号： B65D7/42 ,  B21D51/26 ,  B65D23/02

摘要： Provided is a method for manufacturing a bottle-shaped can for holding content having strong metal corrosive properties such as sparkling wine. The method is comprised of a can trunk shaping step of shaping a cap into a diametrically reduced bottomed cylindrical can body, a top dome shaping step of forming a shoulder portion and a container mouth on the can body, a step of forming a curled portion, a thread and an annular bead on the container mouth, a seaming step of seaming a can lid to the can trunk, and an amorphization step of amorphizing a thermoplastic resin layer covering an inner surface of the container mouth on which the curled portion, the thread and the annular bead are formed

摘要翻译： 提供一种用于制造用于保持具有强烈金属腐蚀性能的物质的瓶形罐的方法，例如汽酒。 该方法包括：罐头成型步骤，其将盖子成形为径向缩小的有底圆筒形罐体;顶部圆顶成型步骤，在罐体上形成肩部和容器口;形成卷曲部分的步骤; 容器口上的螺纹和环形凸缘，将罐盖接合到罐主体的接缝步骤，以及非晶化步骤，其将覆盖在容器口部的内表面上的热塑性树脂层非晶化，卷曲部分上的螺纹 并且形成环形凸缘