发明名称 |
METHODS AND APPARATUS FOR THE MANUFACTURE OF SEAMLESS MULTILAYER COMPOSITE PIPES |
摘要 |
The present invention relates to a method of manufacturing a seamless multilayer composite pipe, an apparatus for manufacturing a seamless multilayer composite pipe, and a seamless multilayer composite pipe. The method of manufacturing a seamless multilayer composite pipe comprises the steps of a) providing a seamless metal pipe with at least one continuous layer covering its inner surface, and b) passing the seamless metal pipe through a unit in order to reduce the diameter of the seamless metal pipe by cold working. An apparatus for manufacturing a seamless multilayer composite pipe comprises a unit for providing a seamless metal pipe with at least one continuous layer covering its inner surface, and a unit for reducing the diameter of the seamless metal pipe by cold working. A seamless multilayer composite pipe comprises a seamless metal pipe with at least one continuous layer covering its inner surface, wherein the continuous layer covering the inner surface of the a seamless metal pipe is mechanically compressed. |
申请公布号 |
EP2139624(B1) |
申请公布日期 |
2017.03.01 |
申请号 |
EP20070728365 |
申请日期 |
2007.04.20 |
申请人 |
Halcor Metal Works S.A. |
发明人 |
BIRIS, John;HINOPOULOS, George;KAIMENOPOULOS, Apostolos |
分类号 |
B21C23/30;B21C23/00;B29C47/02 |
主分类号 |
B21C23/30 |
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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