| 发明名称 |
METHOD OF MAKING MULTI-LAYER PIPE OF STEEL BELTS |
| 摘要 |
FIELD: pipeline engineering. ^ SUBSTANCE: method includes making at least a part of the inner layer of the pipe and outer layer by winding the steel belt on the inner layer. The first steel belt is covered with a gel comprising metalloorganic matter before winding. ^ EFFECT: enhanced crack resistance. ^ 48 cl, 17 dwg |
| 申请公布号 |
RU2235936(C2) |
申请公布日期 |
2004.09.10 |
| 申请号 |
RU20010116604 |
申请日期 |
1999.11.17 |
| 申请人 |
|
发明人 |
FRIDRIKH RAL'F S.;EHNDRES GARRETT DZH.;SHENG KVIZKHONG;INGLKHART LEHMONT T.;DE BI STEFAN;VAN BRAKEL JERUN |
| 分类号 |
B21C37/06;B21C37/12;B21C37/15;B32B1/08;B32B15/08;F16L9/02;F16L9/14;F16L9/147;F16L9/16;F16L11/00 |
主分类号 |
B21C37/06 |
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