发明名称 Rörledningsforbindelse og fremgangsmåte for fremstilling av rörledningsforbindelser av polyolefin
摘要 A pipe end (13) of a pipe (12) consisting of polyolefin is deformed cold, that is to say at ambient temperature, with the aid of an expanding mandrel. Once the expanding mandrel has been withdrawn, the expanded pipe end (13) and a respectively desired connecting part, or the pipe end (11) of a further pipe (10), are plugged onto one another. The pipe end (13) consisting of polyolefin experiences only a reversible deformation and, as a result of it deforming back to its original shape, forms a firm, gas-tight connection to the connecting part or to the other pipe end (11). <IMAGE>
申请公布号 NO940672(A) 申请公布日期 1994.02.25
申请号 NO19940000672 申请日期 1994.02.25
申请人 WIRSBO ROHRPRODUKTION UND VERTRIEBS-GMBH 发明人 IMGRAM, FRIEDRICH
分类号 B29C61/08;B29C57/00;B29C57/04;B29C61/00;B29C65/66;B29D23/00;B29K23/00;B29L23/00;F16L47/00;F16L47/22 主分类号 B29C61/08
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