发明名称 |
MOLD DEVICE, EASY-OPEN END, METHOD OF MANUFACTURING EASY-OPEN END, AND LAMINATED STEEL SHEET FOR EASY-OPEN END |
摘要 |
<p>The mold apparatus has a pair of upper and lower molds being used for forming a score on one side surface of an easy-opening can end fabricated by a laminated metal sheet. The upper mold has a convex part for forming the score, and the cross sectional shape of the convex part at the portion contacting the laminated metal sheet is composed of a curve having a change rate of inclination of 0.08 or smaller to the upper surface of the facing lower mold, or having the curve and a straight line. The formed score has a maximum width of 0.80 mm or smaller.</p> |
申请公布号 |
EP1795278(A1) |
申请公布日期 |
2007.06.13 |
申请号 |
EP20040799864 |
申请日期 |
2004.11.22 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
KUBO, HIROSHI;KOJIMA, KATSUMI;OSHIMA, YASUHIDE;YASUE, YOSHIHIKO;IWASA, HIROKI |
分类号 |
B21D51/44;B65D17/32 |
主分类号 |
B21D51/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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