초록 ▼

A die and process of reinforcing a resin with fibers. The die includes a first mold and a second mold positioned with respect to the first mold to define a passageway having an entrance portion, an exit portion, and a mixing chamber situated between the entrance portion and the exit portion. The fir

A die and process of reinforcing a resin with fibers. The die includes a first mold and a second mold positioned with respect to the first mold to define a passageway having an entrance portion, an exit portion, and a mixing chamber situated between the entrance portion and the exit portion. The first mold has a recess and the second mold has a protrusion which extends into the recess of the first mold to angle a portion of the passageway between the entrance portion and the mixing chamber. This angle is generally greater than about 90 degrees with respect to a direction in which the fibers may be drawn along an axis through the entrance portion. A roving of fibers is drawn into the die and through the entrance portion of the passageway. The fibers then pass through the angled portion of the passageway, wherein the fibers are forced to bend, causing the fibers to splay before entering the mixing chamber. As the fibers pass into the mixing chamber, the fibers are homogeneously impregnated with molten resin. The impregnated fibers are then consolidated in the exit portion and extruded from the die.

대표청구항 ▼

[ What is claimed:] [1.]1. A die for reinforcing a resin with fibers, the die comprising a first mold and a second mold positioned with respect to the first mold to define a passageway having an entrance portion, an exit portion, and a mixing chamber situated between the entrance portion and the exi

[ What is claimed:] [1.]1. A die for reinforcing a resin with fibers, the die comprising a first mold and a second mold positioned with respect to the first mold to define a passageway having an entrance portion, an exit portion, and a mixing chamber situated between the entrance portion and the exit portion, the first mold having a recess and the second mold having a protrusion extending into the recess of the first mold to angle a portion of the passageway between the entrance portion and the mixing chamber, the angle generally being greater than about 90 degrees with respect to a direction in which the fibers may be drawn along an axis through the entrance portion.