A system for manufacturing a thermoplastic prepreg includes a double belt mechanism that is configured to compress a fiber mat, web, or mesh that is passed through the double belt mechanism, a resin applicator that is configured to apply monomers or oligomers to the fiber mat, web, or mesh, and a curing oven that is configured to effect polymerization of the monomers or oligomers and thereby form the thermoplastic polymer as the fiber mat, web, or mesh is moved through the curing oven. The double belt mechanism compresses the fiber mat, web, or mesh and the applied monomers or oligomers as the fiber mat, web, or mesh is passed through the curing oven so that the monomers or oligomers fully saturate the fiber mat, web, or mesh. Upon polymerization of the monomers or oligomers, the fiber mat, web, or mesh is fully impregnated with the thermoplastic polymer.

A system for manufacturing a thermoplastic prepreg includes a double belt mechanism that is configured to compress a fiber mat, web, or mesh that is passed through the double belt mechanism, a resin applicator that is configured to apply monomers or oligomers to the fiber mat, web, or mesh, and a curing oven that is configured to effect polymerization of the monomers or oligomers and thereby form the thermoplastic polymer as the fiber mat, web, or mesh is moved through the curing oven. The double belt mechanism compresses the fiber mat, web, or mesh and the applied monomers or oligomers as the fiber mat, web, or mesh is passed through the curing oven so that the monomers or oligomers fully saturate the fiber mat, web, or mesh. Upon polymerization of the monomers or oligomers, the fiber mat, web, or mesh is fully impregnated with the thermoplastic polymer.

A fiber-reinforced resin molding material includes at least components (A) to (D), wherein the fiber-reinforced resin molding material has a weight loss on heating, when heated at 300° C. for 10 minutes either in a nitrogen atmosphere or in an air atmosphere, of 1.5% or less, and components (A) to (D) are:

(A) an amorphous thermoplastic resin: 100 parts by weight
(B) a reinforcement fiber: 4 to 60 parts by weight
(C) a phosphorus-based flame retardant: 20 to 60 parts by weight
(D) an antioxidant (D): 1.0% by weight or more.

Polypropylene composition comprising a polypropylene base material, a carbon fibre and an adhesion promoter with an excellent impact/stiffness balance, its preparation, articles comprising the composition and the use of the composition.

A molding machine places strips of a tape material side by side and molds the tape material into a molded shape having a web portion and a flange portion, the tape material including a continuous fiber bundle extending in a longitudinal direction. The molding machine includes spreading unit able to increase a width of the tape material by spreading the tape material, and a laying roller that places the tape material which has passed through the spreading unit onto a surface of a molding tool. The spreading unit continuously changes the width of the tape material to avoid generation of a gap between adjacent strips of the tape material, the adjacent strips being adjacent to each other when the tape material is placed on the surface of the molding tool, and the laying roller places the strips of the tape material side by side in a plurality of rows.

The disclosure is to improve quality of a processed molded product. A processing apparatus is a processing apparatus for a composite material in which fibers and a thermoplastic resin are compounded. The processing apparatus includes a heating device configured to heat the composite material to a temperature higher than or equal to the melting point of the resin contained in the composite material; a mold configured to press the composite material; and a temperature adjustment unit configured to adjust the temperature of the mold. While the mold presses the composite material, the temperature adjustment unit maintains the temperature of the mold at a predetermined temperature at which a time required for solidification of the resin contained in the composite material matches a desired time.

The disclosure is to improve quality of a processed molded product. A processing apparatus is a processing apparatus for a composite material in which fibers and a thermoplastic resin are compounded. The processing apparatus includes a heating device configured to heat the composite material to a temperature higher than or equal to the melting point of the resin contained in the composite material; a mold configured to press the composite material; and a temperature adjustment unit configured to adjust the temperature of the mold. While the mold presses the composite material, the temperature adjustment unit maintains the temperature of the mold at a predetermined temperature at which a time required for solidification of the resin contained in the composite material matches a desired time.

Provided is a welding method including: a sheet disposition process of disposing a first and a second protection sheet such that the first and the second protection sheet come into contact with a first and a second composite material and disposing an energization sheet such that the energization sheet comes into contact with the first and the second protection sheet; and a welding process of applying a voltage to a pair of electrode portions disposed at the energization sheet and welding the first and the second composite material, the energization sheet contains the carbon fiber base material oriented in a first predetermined direction connecting the pair of electrode portions, and the first and the second protection sheet contain the carbon fiber base material oriented in a second predetermined direction that substantially perpendicularly intersects the first predetermined direction.

Provided is a welding method including: a sheet disposition process of disposing a first and a second protection sheet such that the first and the second protection sheet come into contact with a first and a second composite material and disposing an energization sheet such that the energization sheet comes into contact with the first and the second protection sheet; and a welding process of applying a voltage to a pair of electrode portions disposed at the energization sheet and welding the first and the second composite material, the energization sheet contains the carbon fiber base material oriented in a first predetermined direction connecting the pair of electrode portions, and the first and the second protection sheet contain the carbon fiber base material oriented in a second predetermined direction that substantially perpendicularly intersects the first predetermined direction.

Techniques for inlaying a composite material within a tooling shell are disclosed. In one aspect, an additively manufactured tooling shell is provided, into which a composite material is inlaid and cured. A surface of the tooling shell is provided with indentations or another mechanism to enable adherence between the composite material and the tooling shell. The resulting integrated structure is used as a component in a transport structure.