METHOD AND APPARATUS FOR BENDING COMPOSITE REINFORCED PIPE
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app pub date -
Dec 22, 2011
filing date -
Oct 27, 2003
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Abstract
An induction heater is used to heat composite reinforced pipe (CRP) prior to a bending operation. By heating the composite reinforcement to approximately 90° F.-110° F., the incidence of circumferential stress cracks in the resin is significantly reduced. Resin cracking is also reduced by incorporating longitudinal fibers in the composite reinforcement during manufacture of CRP.
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