发明名称 |
PROCESS FOR THE MANUFACTURE OF AN ELONGATED TUBE AND USE OF THE TUBE |
摘要 |
<p>This invention relates to a process for the manufacture of an elongated tube, the process comprising the following steps: (a) forming a rotating temporary tube (1), the tube having a first end at which the tube is continuously produced and a second end opposite to the first end, by continuously supplying a flat, elongated metal strip to a guiding body, which guiding body is forming a helix from the strip in such a way that consecutive windings of the helix do not overlap, and helically welding the consecutive windings of the helix formed by the guiding body to each other, (b) cutting cylinders from the second end of the rotating temporary tube (1); and (c) welding the cylinders obtained in step (b) to each other to form the elongated tube. The invention further relates to the use of the elongated tube in a process for the manufacture of an elongated, multilayered tubular body.</p> |
申请公布号 |
EP2307153(B1) |
申请公布日期 |
2012.01.04 |
申请号 |
EP20090772500 |
申请日期 |
2009.07.02 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
FREETH, GRAHAM DUDLEY;SMITH, RICHARD JAMES ANTHONY;WEIL, WOLFGANG |
分类号 |
B21C37/12;B23K9/028;B23K9/032;B23K26/28;B23K26/30;B23K33/00 |
主分类号 |
B21C37/12 |
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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