| 摘要 |
PURPOSE:To produce a fiber-reinforced composite member having high quality in the stage of casting the reinforced composite member consisting of a bar- shaped fiber molding as a reinforcing material and a metal by forming the cross sectional shapes of the fiber molding and the combining part into a similar figure and adjusting the space and sectional area ratio between the fiber molding and the composite part at specific values. CONSTITUTION:A fiber molding F1 is attached to the top end of a core 71 for forming a piston pin hole in the rod forming part 4C of a casting cavity 4 constituted of upper and lower casting molds 1, 2 in the case of producing a connecting rod for an internal-combustion engine of a fiber reinforced composite material. A molten metal is poured from a hopper 11 through a sprue 3 and is filled into the sprue 3, the cavity 4 and a well 5. A molten metal supply pipe 9 is closed with a seal plunger 12 and a plunger 13 is risen to pressurize the molten metal in the sprue 3; at the same time, the molten metal is pressurized and solidified by pressurizing punches 141-143. The sections of the fiber molding F1 and the combining part 15C are made into a similar figure. The space (t) between the surface of the F1 and the outside surface of the 4C is made to >=2mm.. The sectional area of the F1 is made to >=25% of the sectional area of the 15C.
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