发明名称 |
Method of and apparatus for producing can bodies welded along the longitudinal seam |
摘要 |
In conventional methods for welding can bodies along their longitudinal seams, high frequency substantially rectangular a.c. currents are used for the welding current to avoid the problem of arcing found in d.c. welders. However, the high frequency a.c. current causes an undesirable degree of heating which produces eddy currents and necessitates cooling equipment. To overcome this problem, a method of producing can bodies welded along their longitudinal seam is provided in which the length of a half wave of the substantially rectangular welding current is matched in length and concurrent with the amount of time required for a can body to pass between the welding electrodes.
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申请公布号 |
US4414455(A) |
申请公布日期 |
1983.11.08 |
申请号 |
US19810233866 |
申请日期 |
1981.02.12 |
申请人 |
L. SCHULER GMBH |
发明人 |
SCHNEIDER, FRANZ;PANKNIN, WALTER;BELAMARIC, ZELIMIR;SCHALCH, FRED |
分类号 |
B23K11/06;B23K11/24;(IPC1-7):B23K11/06 |
主分类号 |
B23K11/06 |
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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