| 摘要 |
<p>PURPOSE:To reduce unit material cost, make mechanical strength larger and make it possible to realize thin-walled sheet by a method wherein base material, which is woven fabric or non-woven fabric, is applied and impregnated with liquid thermosetting resin and respective sheets of resin-impregnated base material are laminated to one another at laminating rolls so as to laminate release sheet or metal foil on both the sides of the resultant laminate in order to continuously form it in a hot press. CONSTITUTION:Three sheets of resin-impregnated base materials, each sheet of which is prepared by weaving yarn 1 with a weaving machine 2 and, after passing through accumulator rollers 3, being impregnated with resin with a resin-impregnator 4 and led in parallel to laminating rolls 6. At the laminating rolls 6, metal foil sheet 8 is laminated to one side of the three layered resin-impregnated base material and release sheet 7 is laminated to the other side of said three layered base material so as to be fed between the upper and lower belts 9 and 10 of an endless belt press in order to be formed through a hot press 12. As the woven fabric or non-woven fabric, cellulose-based fabric such as paper, synthetic resin fiber or glass fiber is used. The woven fabric or non-woven fabric is sent ot an application and impregnation section so as to be applied and impregnated with thermosetting resin, which is liquid in normal temperature, such as epoxy resin, which is liquid in normal temperature, such as epoxy resin, acrylic ester resin or the like. The resin coverage employed is within the range of 40 - 60 % for glass fabric and 60 - 90 % for non-woven fabric or chopped strand mat.</p> |
