| 摘要 |
A method for producing a pultrusion product having a variable cross section using a specially adapted temperature controllable pultrusion die (26) includes the steps of pulling reinforcing fibers (13) which have been impregnated with a heat curable thermosetting polymeric resin composition through a temperature controllable die (26), heating the temperature controllable die (26) to a temperature sufficient to effect curing of the thermosetting resin, cooling the temperature controllable die (26) to a temperature which is sufficiently low to prevent any significant curing of thermosetting resin passing through the pultrusion die (26), pulling the cured material and a predetermined length of uncured material from the die, reshaping the uncured material, and curing the reshaped material. The reshaping step can be used to provide off-sets, flanges, bosses and the like. The method and associated apparatus (10) of the invention provide a relatively simple and inexpensive way of producing fiber-reinforced thermoset plastics having a variable cross section.
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