Apparatus and methods for reducing plastics pipes

Details Apparatus and methods for reducing plastics pipes Apparatus and methods for reducing plastics pipes

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 55/165 (2006.01) B29C 63/34 (2006.01) F16L 55/128 (2006.01)

Patent

CA 2219461

Apparatus and a method for producing reduction in width in plastics lining pipes includes at least one pair of reducing rolls through which in use the liner pipe is forced from the upstream thereof, the rolls being disposed and configured to present a roll throat of effective ovality, the percentage of the difference between the maximum dimension normal to the axes of rotation and the maximum dimension parallel to the axes of rotation towards the last dimension is in the range of 5% and 30%.

Appareil et procédé permettant de réduire la largeur de tuyaux de regarnissage en plastique. Ledit appareil comporte au moins une paire de rouleaux réducteurs à travers lesquels est poussé le tuyau de regarnissage à partir de l'amont, les rouleaux étant placés et configurés de manière à former une gorge de roulement effectivement ovale. Le pourcentage de la différence entre la dimension maximale perpendiculaire aux axes de rotation et la dimension maximale parallèle aux axes de rotation par rapport à la dernière dimension est de l'ordre de 5 % et 30 %.

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