Manufacture of tubular core for winding strip material from fiber-reinforced polymer, comprises extruding polymer to form strip, helically winding strip on core and winding on additional overlapping layers

摘要

Manufacture of a tubular core for a winding strip material from fiber-reinforced polymer comprises extruding the polymer to form a strip, helically winding the strip on a core, and winding on additional layers. Independent claims are included for: (a) the apparatus for carrying out the method comprising: (i) an extruder (2) with an extruder head (6) for producing the plastic strip (7); and (ii) a mandrel (3) on which the band is helically wound with overlapping layers; and (b) a core produced by the method.