SKIN PLATE MADE OF FRP FOR DOOR BODY OF FLOODGATE, BEAM MATERIAL MADE OF FRP, GUSSET PLATE MADE OF FRP, RUBBER PRESS PLATE MADE OF FRP, WATER LEVEL REGULATING SHARPNESS REMOVED PLATE MADE OF FRP, DOOR BODY MADE OF FRP AND DOOR STOP MADE OF FRP FOR FLOODGATE

摘要

PROBLEM TO BE SOLVED: To achieve the enhancement of strength of an FRP molded product and the shortening of a molding time by raising molding pressure and a molding temperature and increasing a molding speed in a hand lay-up method.;SOLUTION: In the molding method of the FRP molded product by the hand lay-up method, a process of the hand lay-up method is performed by preparing a mold (S1-S4). Glass cloth is laid in the mold (S5) to cast an unsaturated polyester resin, a curing agent and a curing accelerator in the mold, the surface of the cast composition is leveled using a coating roller by a worker (S6), a glass mat is laid on the formed laminate (S7) to cast the unsaturated polyester resin on the laminate, lamination for leveling the surface of the cast layer is performed for 5 min using the coating roller by the worker (S8) and this operation is repeated for about 1 hr until the formed laminate becomes a predetermined thickness to complete the lamination. A pressing machine equipped with an electric heater is placed on the laminate to press the laminate under a pressure of about 0.7 kgf/cm² while heating the same to about 140C (S9). The air in the laminate is expelled to bring the laminate to a dense structure and the laminate is heated at a high temperature to obtain the FRP molded product having a high strength.;COPYRIGHT: (C)2006,JPO&NCIPI