JP2007196685A5 - - Google Patents

Claims (11)

It has a three-layer structure in which a second base material is sandwiched between a first base material that forms an outer surface and a third base material that forms an inner surface, and the first base material and the third base material And the second base material has a resin impregnation coefficient of 3.5 × 10 ⁻¹⁰ m ² or more and a resin impregnation coefficient of 0.7 × 10 ⁻¹⁰ m ² or less. A molding precursor characterized by being a material . Of the first, second, and third base materials, at least one base material is formed and processed, and then continuously extends outward from the edge of the main body forming the product to form a burr after forming. The forming precursor according to claim 1, wherein the forming precursor is formed. At least the first base material and the second base material constitute the burr forming portion, and the first base material covers at least a part of the second base material in the burr forming portion. The molding precursor according to claim 2 , wherein the molding precursor is disposed in the middle. At least the second base material and the third base material constitute the burr forming part, and the third base material covers at least a part of the second base material in the burr forming part. The molding precursor according to claim 1 or 2 , wherein It has a core material which consists of foams, The shaping | molding precursor in any one of Claims 1-4 characterized by the above-mentioned. The molding precursor according to claim 5 , wherein the core material made of the foam is disposed so as to be in contact with the second base material. Molded precursor according to any one of claims 1 to 6, wherein the second substrate is characterized in that it is a non-woven fabric. Molded precursor according to any one of claims 1 to 7, wherein the basis weight of said second substrate is a fibrous structure 10~1500g / m ^2. The molding precursor according to any one of claims 1 to 8 , wherein a ratio of thicknesses of the second base material and the first and third base materials is 10 or less. Wherein the shaped precursor is disposed in a mold, a RTM molding method of molding a fiber-reinforced resin moldings by injection to cure the resin into the mold, of any of claims 1-9, wherein An RTM molding method characterized by using a molding precursor. A fiber reinforced resin molded article obtained by placing a molding precursor in a molding die and curing it together with a resin, wherein the molding precursor according to any one of claims 1 to 10 is used. Reinforced resin molding.