Pipe of oriented thermoplastics polymeric material

Details Pipe of oriented thermoplastics polymeric material Pipe of oriented thermoplastics polymeric material

F - Mech Eng,Light,Heat,Weapons

16

L

285/52

F16L 19/00 (2006.01)

Patent

CA 1095551

ABSTRACT OF THE DISCLOSURE A pipe of oriented thermoplastic polymeric material having an integral socket is manufactured by expanding a tubular blank having a portion of greater wall thickness which is positioned in a portion of a female mould defining the socket. The tubular blank is heated by circulation of hot water to a temperature at which deformation will induce orientation of the polymer molecules, and is then expanded radially out- wards against the mould by application of internal pressure. In this manner the wall thickness and rigidity of the socket are increased.

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