Pultrusion is a continuous process for the manufacture of composite structures. Parts feature a constant cross-section and are made by pulling continuous reinforced fibers through a resin bath, optionally followed by a separate preforming system, and into a heated die, where the resin undergoes polymerization as the reinforcements are pulled through the die. Resin types typically include polyester, polyurethane, vinyl ester and epoxy. Pultrusion is particularly effective in production of long, relatively narrow parts used as reinforcing members or ribs in a larger structure.
The Russian nanotechnology Centre of Composites has ordered custom-built pultrusion and filament winding processing lines from U.K.-based machinery manufacturer Pultrex Ltd.12th World Pultrusion Conference: Call for papers Composites Technology
The European Pultrusion Technology Assn. (EPTA, Frankfurt am Main, Germany) has extended a call for papers for its 12th World Pultrusion Conference, set for March 6-7, 2014 in Lisbon, Portugal.Clean wet-filament winding machine Composites Technology
At JEC Europe 2013, Mouldlife Ltd.’s and Pultrex Ltd.’s new clean wet-filament winding technology made its debut.Pultrudable polyurethane Composites Technology
Dow Formulated Systems, a business unit of The Dow Chemical Co., introduced at JEC Europe 2013 its VORAFORCE TP polyurethane system for pultrusion.Pultruding polyurethane: Sheet pilings break boundaries Composites Technology
High-pressure pultrusion process creates polyurethane composite sheet pile system with the strength and stiffness to compete with steel.