发明名称 |
Method of manufacturing vibrationally stressed pipe element entails preprofiling metal strip with risers offset from plane and deflections with member heights of bellows equalling multiple of strip thickness |
摘要 |
The method for the manufacturing of a pipe element (1) subjected to vibrational stresses, and especially motor vehicles' exhaust pipes, from a preprofiled metal strip (2) which is wound in convolutions with bellows-shaped windings (4) entails preprofiling the strip with at least one riser offset from the plane and a deflection in the fashion of a circular track with member heights (h1,h2) of the bellows equalling a multiple of the strip thickness. The members (5a,5b) of the bellows are preprofiled, for example, with a height corresponding to 25 to 75 times the band thickness. An Independent claim is included for a pipe element which is subjected to vibrational stresses and is especially an exhaust pipe of a motor vehicle.
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申请公布号 |
DE10259695(A1) |
申请公布日期 |
2004.07.01 |
申请号 |
DE2002159695 |
申请日期 |
2002.12.18 |
申请人 |
WESTFALIA METALLSCHLAUCHTECHNIK GMBH & CO. KG |
发明人 |
BAUMHOFF, DIETMAR;FUHRMANN, MANFRED;BENDER, FRANK;HAUK, STEFAN |
分类号 |
F16L11/16;(IPC1-7):F16L55/04;B21C37/22 |
主分类号 |
F16L11/16 |
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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