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.
There are numerous methods for fabricating composite components. Some methods have been borrowed (injection molding, for example), but many were developed to meet specific design or manufacturing challenges. Selection of a method for a particular part, therefore, will depend on the materials, the part design and end-use or application.12th World Pultrusion Conference program now available Composites Technology
The European Pultrusion Technology Assoc. (EPTA) reports that the program is now available for the 12th World Pultrusion Conference, March 6-7 in Lisbon, Portugal.Russian nanotech center orders Pultrex machines for product development Composites Technology
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.