| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To form a good curled part by which cap opening property and cap closing property of a cap are secured while securing the sealing performance between a bottle can and the cap. <P>SOLUTION: In a manufacturing method of the bottle can 1 on the base part 4 of which a screw part 6 is formed and also in which a curled part 7 is formed on the open end part 9 of the base part 4, a precurled part is formed by outward bending the open end part 9 of the base part 4, after that, the screw part 6 is formed and the curled part 7 is formed by working the precurled part of the open end part 9. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
