Molding precursor, process for manufacturing fiber-reinforced resin molding, and fiber-reinforced resin molding

Abstract

A molding precursor which comprises a main body part and a burr formation part protruding outward from the edge of the main body part and extending continuously along the edge, wherein the main body part comprises a first base comprising many reinforcing fibers and a second base which comprises many fibers and has been superposed on the first base in an outer peripheral part of the main body part, the burr formation part is constituted of that part of the second base which protrudes outward from the edge of the main body part, and spaces among the many fibers constitute passages for a moldingresin.

Description

Molding precursor, method for producing fiber-reinforced resin molded body, and fiber-reinforced resin molded body technical field The present invention relates to a molding precursor, a method for producing a fiber-reinforced resin molded body obtained by impregnating the molding precursor with a matrix resin by an RTM (Resin Transfer Molding) method, and a fiber-reinforced resin molded body. The molding precursor of the present invention facilitates finishing of a fiber-reinforced resin molding formed from the molding precursor and a resin. Background technique Fiber-reinforced resins (FRP), particularly carbon fiber-reinforced resins (CFRP), are used in various fields as composite materials that are lightweight and have high mechanical properties. As one of the molding methods of FRP moldings, the RTM method is known. In this method, a reinforcing fiber base material is placed in the molding cavity of the molding die, and after the mold is closed, a fluid matrix resin i...

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