发明名称 |
METHOD FOR WELDING OF POLYMER PIPES |
摘要 |
FIELD: construction. ^ SUBSTANCE: invention is related to the field of polymer pipes butt welding by means of flashing and may be used to weld polyethylene pipes in case of high temperatures of ambient atmospheric air out of regulated interval of welding works performance temperature. Invention provides for identical speed of welded seam cooling along internal surface of polymer pipe along its whole perimetre. On completion of upset forging operation, atmospheric air is supplied to one end of welded pipe under pressure, while the other end of pipe is in open condition. ^ EFFECT: welded seam produced under such conditions has identical strength properties along the whole perimetre of welded seam. |
申请公布号 |
RU2383811(C1) |
申请公布日期 |
2010.03.10 |
申请号 |
RU20080129230 |
申请日期 |
2008.07.16 |
申请人 |
INSTITUT PROBLEM NEFTI I GAZA SIBIRSKOGO OTDELENIJA ROSSIJSKOJ AKADEMII NAUK |
发明人 |
GERASIMOV ALEKSANDR INNOKENT'EVICH;STAROSTIN NIKOLAJ PAVLOVICH;DANZANOVA ELENA VIKTOROVNA |
分类号 |
F16L13/02 |
主分类号 |
F16L13/02 |
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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