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    METHOD OF PRODUCING PREFORM AND METHOD OF MOLDING COMPOSITE MATERIAL
    5.
    发明公开
    METHOD OF PRODUCING PREFORM AND METHOD OF MOLDING COMPOSITE MATERIAL 审中-公开

    公开(公告)号：EP4349573A1

    公开(公告)日：2024-04-10

    申请号：EP23195007.2

    申请日：2023-09-04

    申请人： Subaru Corporation

    发明人： KOMANIWA, Masami

    IPC分类号： B29C70/16 ,  B29C70/38

    摘要： A method of producing a preform includes: laminating first prepreg tapes with at least one interval in a width direction of the first prepreg tapes using an automated fiber placement apparatus configured to allow disposing desired prepreg tapes, supplied from bobbins, in a width direction of the desired prepreg tapes, and feeding out the disposed desired prepreg tapes in a length direction of the disposed desired prepreg tapes; and laminating at least one second prepreg tape in the at least one interval between the laminated first prepreg tapes, using the automated fiber placement apparatus. The preform is a material for a fiber reinforced plastic.

    MOLDED BODY AND METHOD FOR MANUFACTURING SAME
    7.
    发明公开
    MOLDED BODY AND METHOD FOR MANUFACTURING SAME 审中-公开

    公开(公告)号：EP4215357A1

    公开(公告)日：2023-07-26

    申请号：EP21869285.3

    申请日：2021-09-09

    申请人： Mitsui Chemicals, Inc.

    发明人： MIZUMOTO, Kazuya ,  ISAKI, Takeharu ,  MIYATA, Atsushi ,  KANDA, Yoshihiko ,  FUJIHARA, Kazutoshi

    IPC分类号： B32B5/28 ,  B29B15/12 ,  B29C70/16 ,  B29C70/30

    摘要： The present invention addressed the problem of providing a molded body which has a high performance of reducing energy caused by the application of a load, and which is obtained from a fiber-reinforced resin containing reinforcing fibers arranged while aligned in one direction. To solve the problem, the present invention relates to a molded body, including a reinforced layer formed by layering fiber-reinforced resin layers containing a plurality of reinforcing fibers arranged while aligned in one direction and a matrix resin impregnated with the reinforcing fibers. In the molded body, the reinforced layer has a plurality of alignment shifted layers, which are fiber-reinforced resin layers in which the shift angle, i.e., the angle formed by the reinforcing fibers with respect to the longitudinal direction of the reinforced layer, is 25° to 65° or -65° to -25°.

    APPARATUS AND METHOD TO ENABLE IN-PLANE BENDING OF HIGH CONTOUR COMPOSITE STRUCTURES IN POST- FORMING OPERATIONS
    8.
    发明公开
    APPARATUS AND METHOD TO ENABLE IN-PLANE BENDING OF HIGH CONTOUR COMPOSITE STRUCTURES IN POST- FORMING OPERATIONS 审中-公开

    公开(公告)号：EP4140718A1

    公开(公告)日：2023-03-01

    申请号：EP22190400.6

    申请日：2022-08-15

    申请人： The Boeing Company

    发明人： KENDALL, James R ,  SURIYAARACHCHI, Raviendra S ,  MODIN, Andrew E

    IPC分类号： B29D99/00 ,  B64C3/18 ,  B29C70/16 ,  B29C70/54 ,  B29C70/46 ,  B64C1/00

    摘要： There is provided a forming apparatus (10, 10a) for forming a high contour composite structure (18). The forming apparatus (10, 10a) includes an upper die (72) and a lower die (140) between which a composite charge (14) is formed. The forming apparatus (10, 10a) further includes a plurality of load cells (66), a control system (60), and an overlay tool assembly (42) coupled to the upper die (72). The overlay tool assembly (42) has scalloped sections (76a) positioned between pairs (66a) of the plurality of load cells (66), and positioned against portion(s) (14a) of the composite charge (14). The composite charge (14) has ply discontinuity features (90) through the one or more portions (14a). The overlay tool assembly (42) denies pressure (46) and a through thickness compaction (48) to the one or more portions (14a) of the composite charge (14) during a forming process (12), to allow one or more plies (32) in the one or more portions (14a) to move after the forming process (12), and to enable in-plane bending (52) of the high contour composite structure (18) in post-forming operations (56).

    REINFORCED FIBER TAPE MATERIAL AND PRODUCTION METHOD THEREFOR, FIBER REINFORCED RESIN
    9.
    发明公开
    REINFORCED FIBER TAPE MATERIAL AND PRODUCTION METHOD THEREFOR, FIBER REINFORCED RESIN 审中-公开

    公开(公告)号：EP4140710A1

    公开(公告)日：2023-03-01

    申请号：EP22202660.1

    申请日：2019-07-29

    申请人： Toray Industries, Inc.

    发明人： KANDA, Mamoru ,  SATO, Masayuki

    IPC分类号： B29C70/16 ,  B29C70/50 ,  B32B5/26 ,  B32B27/12 ,  B29C70/20 ,  B32B5/02 ,  B29B11/16 ,  B29C70/12 ,  B29C70/08 ,  B29C70/46 ,  B29B15/14 ,  B29B15/12

    摘要： The present invention concerns a reinforcing fiber tape material having a strand aggregate provided with one or a plurality of reinforcing fiber strands, used for resin injection molding, characterized in that the tape material is formed by being restrained and integrated with reinforcing fibers forming the reinforcing fiber strand or/and the plurality of reinforcing fiber strands with each other by a first or fourth resin material arranged on at least one of surfaces of the strand aggregate and a second or third resin material arranged on one of the surfaces which is different in softening point from the first or fourth resin material, and the first or fourth resin material and the second or third resin material have matrix resin permeability,
    wherein a heat-meltable fourth resin material having a softening point of 40°C or higher and 200°C or lower is provided at a state of being solidified after being softened on both surfaces of the strand aggregate composed of reinforcing fiber strands each in which reinforcing fibers are aligned in parallel in one direction, and a third resin material having a softening point higher than that of the fourth resin material is adhered to one surface of the strand aggregate composed of the reinforcing fiber strands via the fourth resin material,
    especially wherein the softening point M3 [°C] of the third resin material and the softening point M4 [°C] of the fourth resin material satisfy the following equation: M 3 > M 4 + 10 ° C .

    TANK
    10.
    发明公开
    TANK 审中-公开

    公开(公告)号：EP4130519A1

    公开(公告)日：2023-02-08

    申请号：EP21774637.9

    申请日：2021-03-15

    申请人： Toray Industries, Inc.

    发明人： NAGAMATSU, Daisuke ,  OUCHIYAMA, Naoya ,  MATSUI, Akihiko

    IPC分类号： F16J12/00 ,  F17C1/06 ,  B29C70/16 ,  B29C70/32

    摘要： A tank including: a liner which is an inner shell; and a reinforcing layer covering the outer surface of the liner; wherein the reinforcing layer is formed by continuously winding resin-impregnated fiber bundles around the liner; the reinforcing layer includes a hoop layer placed in the liner side, and a helical layer; gaps are formed between adjacent bundles of the resin-impregnated fiber bundles wound in the hoop layer; there is at least one site where the resin-impregnated fiber bundles are wound without forming a gap between adjacent bundles in the helical layer; and the resin constituting the tank has a resin toughness value of not less than 1.0 MPa·m 0.5 . An inexpensive tank for which accurate arrangement of resin-impregnated fiber bundles, an apparatus for detecting gaps between resin-impregnated fiber bundles, and the like are not required; and a production method therefor; are provided.