Abstract: The present invention provides a method for producing a mold made of a composite material by using a prepreg material. First, a material 200 of a mold having a long two-dimensional shape and in a semi-cured state is produced from a prepreg sheet by continuous pultrusion molding. Subsequently, the semi-cured material 200 is mounted on a plurality of templates 131, 132, 133, 134, and 135 vertically provided on a base plate 120 of a molding apparatus 100, and thereby plastically deformed into a three-dimensional shape. The entire molding apparatus 100 is heated and pressurized to produce a completely-cured mold.

Abstract: The present invention provides a method for producing a mold made of a composite material by using a prepreg material. First, a material 200 of a mold having a long two-dimensional shape and in a semi-cured state is produced from a prepreg sheet by continuous pultrusion molding. Subsequently, the semi-cured material 200 is mounted on a plurality of templates 131, 132, 133, 134, and 135 vertically provided on a base plate 120 of a molding apparatus 100, and thereby plastically deformed into a three-dimensional shape. The entire molding apparatus 100 is heated and pressurized to produce a completely-cured mold.

Abstract: The invention provides an improved method for forming a composite material mainly composed of carbon fiber. It is difficult to form an H-shaped structural member formed of a prepreg material having carbon fiber fabric impregnated with epoxy resin into a member having curvature. Thus, the structural member is divided into two bendable constructional elements 110 and 120, which are bent to given curvature then adhesively-bonded to form a structural member having curvature.

Abstract: The invention provides an improved method for forming a composite material mainly composed of carbon fiber. It is difficult to form an H-shaped structural member formed of a prepreg material having carbon fiber fabric impregnated with epoxy resin into a member having curvature. Thus, the structural member is divided into two bendable constructional elements 110 and 120, which are bent to given curvature then adhesively-bonded to form a structural member having curvature.

Abstract: A continuous forming method and device for an H-shaped FRP member for forming semi-hardened preimpregnated members produced by impregnating thermosetting resin to carbon fiber or glass fiber and the like into a predetermined H-shape. The forming device comprises of a device for mounting a plural number of bobbins having strip-shaped preimpregnated material spooled thereto, providing tension when pulling the impregnated material out from the bobbin. The device the shapes the preimpregnated material to a predetermined H-shape that feeds release films from four sides of upper, lower, left and right. The device then provides heat and pressure to the preimpregnated material from said four sides with a heating furnace for after-curing the preimpregnated material. The device then hauls and holds the preimpregnated material for cutting the cured product.

Abstract: A method for forming a compound material by intermittently heating and pressurizing a composite material reinforced by fibers. The method is made up of a pinching step of pinching and fixing the upstream end and the downstream end of the composite material; a heating/pressurizing step of heating and pressurizing the pinched and fixed composite material intermittently; and a moving step of releasing the compound material and sending the material to the downstream direction after termination of the heating/pressurizing step; during the pinching step, tension toward the downstream advancing direction is provided to the downstream end of the composite material, and during the moving step, the amount of movement of the compound material at the downstream side is set to be greater than the amount of movement of the compound material at the upstream side, thereby straightening the fibers in the compound material linearly.

Abstract: A preimpregnated sheet material 250 impregnated with thermosetting resin is spooled around a bobbin, and two bobbins positioned one above the other constituting one unit is provided to feed the materials sequentially to a crease forming device 310, an open-trapezoid-shape forming device 330 and a U-shape forming device 340 where the materials are bent. The preimpregnated sheet member bent to form a U-shape is vertically mounted on another U-shaped member to form the shape of an H, and to the surfaces of said H-shaped member are provided release films 260 before the member is transferred to a hot press device 400. Said sheet material heated and pressed by the hot press device 400 is then heated for a predetermined time at an after-cure device, where thermosetting of the material is completed. The produced H-shaped member is then intermittently pulled out by a haulage device and cut into predetermined lengths.