| 摘要 |
PURPOSE:To prepare a screw part having high tensile strength and high interlayer peel strength by using interlace yarns whose monofilaments are being entangled each other by means of gas flow in molding a screw with a resin. CONSTITUTION:24 glass fiber rovings are passed through a resin layer where 100 parts epoxy resin, 80 parts methytetrahydrophthalic anhydride and 2 parts 2-ethyl-4-methylimidazole as a curing accelerator are mixed, and then pulled through a die whose inner diameter is 8.5mm heated at 120 deg.C while it is being heated and cured to mold a round bar. Screw preparation is carried out on this round bar to prepare an ordinary tooth. A screw part wherein interlace yarns are homogeneously distributed from the screw center with no screw cut to the thread can be thereby obtained.
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