发明名称 METHOD FOR PRODUCING FIBER-REINFORCED RESIN MOLDING, FIBER-REINFORCED RESIN MOLDING OBTAINED BY THE METHOD, AND SYNTHETIC RESIN RAILROAD TIE
摘要 PROBLEM TO BE SOLVED: To provide a method for producing a fiber-reinforced resin molding which improves the physical properties including mechanical strength such as flexural strength, durability, and productivity of the molding and can reduce its costs, the fiber-reinforced resin molding obtained by the method, and a synthetic resin tie. SOLUTION: Reinforcing long fibers 11 are made to advance in one direction while being aligned at prescribed intervals, and a urethane resin liquid 12 is sprayed from above the fibers 11 during advancing. The tension of one aligned reinforcing long fiber is adjusted to be 9.8-29.4 N. After the fibers 11 are impregnated with the urethane resin liquid 12, the liquid 12 is led to a molding passage 24 and foamed/cured to produce the fiber-reinforced resin molding 1. The weight ratio of the fibers in the molding 1 is 45-50%, and the weight ratio of a urethane resin foamed part is 50-55%. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005262572(A) 申请公布日期 2005.09.29
申请号 JP20040076734 申请日期 2004.03.17
申请人 SEKISUI CHEM CO LTD 发明人 ISHIJIMA YUJI
分类号 E01B3/44;B29C70/52;B29K75/00;B29L31/00;C08G18/00;C08G101/00;C08J5/04;(IPC1-7):B29C70/52 主分类号 E01B3/44
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