Polymer pipe connection and method to make it

Details Polymer pipe connection and method to make it Polymer pipe connection and method to make it

F - Mech Eng,Light,Heat,Weapons

16

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285/62, 18/975

F16L 47/02 (2006.01) B29C 65/00 (2006.01) B29C 65/68 (2006.01) F16L 41/00 (2006.01) F16L 47/00 (2006.01) F16L 47/22 (2006.01) B29C 61/00 (2006.01) B29C 65/50 (2006.01)

Patent

CA 1042480

Abstract of the Disclosure A pipe connection is provided which comprises two pipe ends, one inserted inside of the other, and one consisting essentially of crosslinked polymer material, whereas the other consists essentially of crosslinked or non-crosslinked polymer material, the connection having a layer of polymer material press-fitted and crosslinked between the two pipe ends. The pipe fitting is made by arranging the two pope ends so that one is inserted in the other, one of the ends having a mechanical memory and having been deformed so that one of the pipe ends fits into the other, providing an in situ heat- crosslinkable polymer layer between the two pipe ends and heating the thus assembled pipe ends to crosslink the heat-crosslinkable layer, while the deformed pipe end returns towards its original shape, thus press-fitting the crosslinking polymer layer between the two pipe ends and making a strong, fluid-tight joint.

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