发明名称 |
APPARATUS AND METHOD FOR MANUFACTURING HOLLOW SHAFTS. |
摘要 |
<p>A method and apparatus for welding a shaft having an open seam defined between opposed longitudinal edges, comprising passing the shaft along its longitudinal axis through an array of pressure rollers which contact the surface of the shaft at a plurality of discrete points and compressing the shaft by applying inwardly directed radial forces to the shaft. An electrical resistance welding assembly welds the seam while closed by said pressure rollers. <IMAGE></p> |
申请公布号 |
MXPA02012650(A) |
申请公布日期 |
2004.02.17 |
申请号 |
MX2002PA12650 |
申请日期 |
2000.10.17 |
申请人 |
IUSRD (IRELAND) LIMITED |
发明人 |
JACK, ROBERT, GEORGE, JOHN |
分类号 |
B21C37/08;B21C37/18;B21D5/12;B23K11/02;B23K13/00;B23K37/00;(IPC1-7):B21C37/18 |
主分类号 |
B21C37/08 |
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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