B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 69/00 (2006.01) B05D 1/02 (2006.01) B27N 5/00 (2006.01) B29B 11/16 (2006.01) B29B 13/08 (2006.01) B29C 35/08 (2006.01) B29C 70/30 (2006.01) B29C 70/34 (2006.01) B29C 70/38 (2006.01) D04H 1/00 (2006.01)
Patent
CA 2089334
METHOD AND APPARATUS FOR MAKING PREFORMS ABSTRACT A directed fiber, directed energy process provides both a method and an apparatus for making structural preforms. Fibrous reinforcement material is chopped into short lengths of fiber and propelled toward a perforate mold part. During propulsion and/or deposition on the perorate mold part the fibers are sprayed with an electromagnetic radiation-curable binder. The binder- carrying fibers are held on the perforate mold part by a flow of air in that the perforate mold part is rotatably mounted in a plenum which provides an air flow therethrough. Rotation of the perforate mold part and scanning action of the fiber and binder propelling mechanisms effects even and complete coverage of the perforate mold part. After a mat of the chopped fibers has been applied to the perforate mold part, a conforming second mold part closes the mold and presses the fibers to replicate the shape of the three dimensional rigid preform. While in the mole which may be advantageously constructed of an electromagnetic radiation transmissive material, the pressed fibers are subjected to electromagnetic radiation to cure the binder and bond the fibers of the mat into a rigid three-dimensional element. A subassembly, such as an auxiliary member or members, may be attached by applying an electromagnetic energy- curable binder to a selected area of the preform and/or the subassembly, placing the auxiliary member into a desired orientation and into intimate contact with the preform at the selected binder-coated area, and the binder at that area cured by the application of the electromagnetic energy. The electromagnetic energy may be, for example, microwave radiation and/or ultraviolet radiation.
Gowling Lafleur Henderson Llp
The C.a. Lawton Company
LandOfFree
Directed fiber, directed energy structural preform process... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Directed fiber, directed energy structural preform process..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directed fiber, directed energy structural preform process... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1577974