Abstract: Provided is a method for producing a molded body that is capable of effectively and accurately producing a molded body from a composite substrate made of a fiber-reinforced resin containing a thermosetting resin and reinforcing fibers. The method includes shaping the composite substrate with the a thermosetting resin in an uncured state into a three-dimensional shape at a site different from where a molding unit is located; conveying the composite substrate to the molding unit so as to maintain the three-dimensional shape thereof; then, placing the conveyed composite substrate on a molding surface of a lower die formed to suit the three-dimensional shape, so as to maintain the three-dimensional shape thereof; and pressing the composite substrate placed on the lower die with an upper die while heated, thereby curing the thermosetting resin and forming the molded body.

Abstract: The present disclosure is applied to a press molding method for press-molding a workpiece by a press die composed of an upper die and a lower die while holding the workpiece by a die cushion. The press molding method according to the present disclosure includes pressing process, in which a press position at which the workpiece is pressed by the press die is gradually lowered while repeatedly pressing and releasing the workpiece by the press die a plurality of times until the press position reaches a bottom dead center, wherein in the pressing process, a holding force for holding the workpiece by the die cushion is controlled separately from a press molding force for press-molding the workpiece by the press die.

Abstract: Provided is a method for producing a molded body that is capable of effectively and accurately producing a molded body from a composite substrate made of a fiber-reinforced resin containing a thermosetting resin and reinforcing fibers. The method includes shaping the composite substrate with the a thermosetting resin in an uncured state into a three-dimensional shape at a site different from where a molding unit is located; conveying the composite substrate to the molding unit so as to maintain the three-dimensional shape thereof; then, placing the conveyed composite substrate on a molding surface of a lower die formed to suit the three-dimensional shape, so as to maintain the three-dimensional shape thereof; and pressing the composite substrate placed on the lower die with an upper die while heated, thereby curing the thermosetting resin and forming the molded body.

Abstract: An electrical heating device electrically heats a material to be heated by supplying an electric current flowing between a plurality of electrodes. The electrical heating device includes a temperature detection device which detects temperature information of a plurality of areas of the material to be heated, a supplemental heating device which heats each of the plurality of areas of the material to be heated, and a controller for controlling heating of the material to be heated. During the electrical heating, the controller controls, based on the temperature of each of the plurality of areas of the material to be heated detected by the temperature detection device, the supplemental heating device so that the supplemental heating device heats at least one area or all of areas having a temperature lower than the temperature of an area having a highest temperature among the plurality of areas.

Abstract: An electrical heating device electrically heats a material to be heated by supplying an electric current flowing between a plurality of electrodes. The electrical heating device includes temperature detection means for detecting temperature information of a plurality of areas of the material to be heated, supplemental heating means for heating each of the plurality of areas of the material to be heated, and control means for controlling heating of the material to be heated. During the electrical heating, the control means controls, based on the temperature of each of the plurality of areas of the material to be heated detected by the temperature detection means, the supplemental heating means so that the supplemental heating means heats at least one area or all of areas having a temperature lower than the temperature of an area having a highest temperature among the plurality of areas.

Abstract: An electrical heating device includes supplemental heating means for supplementarily heating each of areas defined in advance in the material to be heated, and control means. A supplemental heating quantity for each of the areas is obtained by calculating a necessary heating quantity for heating each of the areas to a predefined target temperature and an electrical heating quantity generated in each of the areas by the electrical heating based on cross-sectional area information on the material to be heated and temperature information on the material to be heated and subtracting the calculated electrical heating quantity from the calculated necessary heating quantity. The control means controls, in addition to the control of an electrical heating, the supplemental heating means so that each of the areas is supplementarily heated based on the obtained supplemental heating quantity for each of the areas.

Abstract: The present invention intends provided a tandem pressing apparatus which can shorten and the conveying distance i.e. the conveying time without increasing conveying speed of the work. A tandem pressing apparatus of the present invention is comprised of a tandem pressing line constructed by plural tandem presses 10 and 20 disposed side by side, and a work conveying apparatus 70 including a main member and an arm portion. Each of the tandem press includes a bed, 11, plural uprights 13a to 13d studded on the bed, and a slide 15 supported on the uprights to be ascended or descended. The main member 62 and 63 is provided at a portion located inside the uprights of the adjacent two tandem presses constructing the tandem pressing line and does not interfer with the slide. The arm member 65 is held on the main member to transfer the work having been pressed by the upstream tandem press to the downstream tandem press.

Abstract: The present invention intends provided a tandem pressing apparatus which can shorten and the conveying distance i.e. the conveying time without increasing conveying speed of the work. A tandem pressing apparatus of the present invention is comprised of a tandem pressing line constructed by plural tandem presses 10 and 20 disposed side by side, and a work conveying apparatus 70 including a main member and an arm portion. Each of the tandem press includes a bed, 11, plural uprights 13a to 13d studded on the bed, and a slide 15 supported on the uprights to be ascended or descended. The main member 62 and 63 is provided at a portion located inside the uprights of the adjacent two tandem presses constructing the tandem pressing line and does not interfer with the slide. The arm member 65 is held on the main member to transfer the work having been pressed by the upstream tandem press to the downstream tandem press.