发明名称 |
FremgangsmÕte og innretning for fremstilling av metaller med liten diameter og stor lengde |
摘要 |
<p>The method for producing long pipes with a small diameter includes extraction of a strip from a coil, forming of this strip into a pipe with a longitudinal slit, and welding of the slit. The improvement in the method is that (a) the beginning and end of a number of strip coils are joined to one another by welding and (b) coils (23a-23n) are fed horizontally fed onto clamping rings (22a-22n) mounted on a rotatable supply drum (17), and are extracted from it without interruptions. Also claimed is a corresponding apparatus.</p> |
申请公布号 |
NO975239(A) |
申请公布日期 |
1998.05.18 |
申请号 |
NO19970005239 |
申请日期 |
1997.11.14 |
申请人 |
ALCATEL ALSTHOM COMPAGNIE GUNURALE D'ELUCTRICITU |
发明人 |
STASCHEWSKI, HARRY |
分类号 |
B21C37/08;B21C37/083;B21C47/18;B21C47/26;B21C47/28;B65H49/20;G02B6/44;(IPC1-7):B21C37/08 |
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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