Abstract
AbstractChlorinated polyvinylchloride (CPVC) pipe is a rapidly growing market, especially 25.4 mm (1″) pipe and smaller. Extrusion of CPVC pipe presents a greater challenge than PVC, because CPVC has less heat stability and higher viscosity. However, CPVC has good physical properties, particularly with respect to heat, and can be used to make hot water pipe. This paper discusses some of the basic factors involved in screw and pipe head design for CPVC extrusion, and gives some examples of successful applications.
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