发明名称 |
Method of and apparatus for manufacturing double contact rivets |
摘要 |
A double-contact rivet is formed from wire portions cut from wire supplies. The wire portions are aligned so that outer portions of electric contact material are located on either side of a central portion of support material, and the two outer portions are cold-welded to the central portion. One end of the body so formed is punched to provide a contact head while the bead formed by the cold-welding at the other end is pressed to a substantially flat ring form and hardened by rapid cooling. The hardened ring bead is cleanly cut from the remainder of the rivet.
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申请公布号 |
US4073425(A) |
申请公布日期 |
1978.02.14 |
申请号 |
US19760747044 |
申请日期 |
1976.12.02 |
申请人 |
DODUCO, EUGEN DURRWACHTER |
发明人 |
BOLLIAN, ERWIN |
分类号 |
B21K1/62;H01H11/04;(IPC1-7):B23K21/00 |
主分类号 |
B21K1/62 |
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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