MANUFACTURE OF FIBER REINFORCED RESIN CIRCULAR BOARD

摘要

PURPOSE:To obtain the titled high strength product containing uniformly distributed reinforcement and having uniform strength and a large content of reinforcement by a method wherein strip-form reinforcement and molding material are supplied in turn to be laminated into the circular space of a bottom force with a specified shape and pressed by a top force. CONSTITUTION:For example, strip-form reinforcement (such as glass-chopped strand) is supplied from the strip-form reinforcement supplier 10 into the above- mentioned circular space 4 of a bottom force 1 where the core bar 3 is provided vertically concentrically about the one end closed cylinder 2 to form the circular space 4 and then thermosetting resin 141 (such as a hardener mixed unsaturated polyester resin etc.) and filler 141' (such as silica sand etc.) are supplied from the molding material supplier 13, 13'. These operations are repeated in turn to supply a necessary amount into the circular space 4, then a top force 15 is inserted into the bottom force 1, pressed, and the material in the space is hardened to obtain the intended product.