Patent ID: 8298360
Filing Date: 2012-10-30
Classification: B29C

Abstract:
1. A process for obtaining pipes and connections from a polymeric composite, comprising: forming one internal pipe with a thickness from 3.0 to 8.0 mm using a fiberglass and epoxy resin matrix; molding the internal pipe in a polished metallic mold by filament winding a first layer of roving wire at a winding angle of 52° to 55°, impregnating the first layer with epoxy resin, and catalyzing with a heat curing agent having an aromatic amine base, anhydride, and aliphatic amine; forming the extremities of the internal pipe with a mold having molded screw threads, using a composite with an epoxy resin and carbon fiber base; fixing the extremities of the internal pipe in an equipment which provides traction and prevents buckling; rotating the internal pipe to a speed of 35 rpm; applying a water sandpaper to the entire external surface of the internal pipe in order to decrease brightness and increase adherence thereto; cleaning the internal pipe after sanding; and washing the internal pipe with an acetone-based degreasing composition.