发明名称 |
MANUFACTURING PISTON RING |
摘要 |
A process for manufacturing a piston ring is disclosed wherein web-like first metal member which will form a base of a piston ring and web-like second metal member which will form a wear resistant layer of the piston ring are separately fed and joined together. The joined web is subject to curving to gradually decrease a radius of curvature. |
申请公布号 |
GB8317937(D0) |
申请公布日期 |
1983.08.03 |
申请号 |
GB19830017937 |
申请日期 |
1983.07.01 |
申请人 |
NIPPON PISTON RING CO LTD |
发明人 |
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分类号 |
B21D7/08;B21F37/00;B23P15/06;B23P15/08;(IPC1-7):23P15/06 |
主分类号 |
B21D7/08 |
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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