-
公开(公告)号：US20180194082A1
公开(公告)日：2018-07-12
申请号：US15741615
申请日：2016-07-07
CPC分类号： B29C70/10 , B29B11/02 , B29B15/122 , B29C70/42 , B29C2793/0081 , B29K2031/00 , B29K2307/04 , B65H35/0086 , B65H35/08 , D01D11/02
摘要： Provided are a method and an apparatus for manufacturing a fiber-reinforced resin molding material by which, when the fiber-reinforced resin molding material is manufactured, separated fiber bundles can be supplied to a cutting machine in stable condition while avoiding the influence of meandering of the fiber bundles or slanting or meandering of filaments occurring in the fiber bundles.
-
公开(公告)号：US20230050464A1
公开(公告)日：2023-02-16
申请号：US17978204
申请日：2022-10-31
摘要： Provided are a method and an apparatus for manufacturing a fiber-reinforced resin molding material by which, when the fiber-reinforced resin molding material is manufactured, separated fiber bundles can be supplied to a cutting machine in stable condition while avoiding the influence of meandering of the fiber bundles or slanting or meandering of filaments occurring in the fiber bundles. A method for manufacturing a sheet-shaped fiber-reinforced resin molding material in which spaces between filaments of cut-out fiber bundles (CF) are impregnated with resin includes, so that a condition of the following expression (1) is satisfied, intermittently separating fibers of the continuous fiber bundles (CF) in a longitudinal direction by a rotational blade (18) serving as a fiber separating part and cutting out the fiber bundles with an interval therebetween in a longitudinal direction of a cutting machine (13A) to obtain the cut-out fiber bundles (CF). Expression (1): 1≤a/L (where a represents a length of a separated part of the continuous fiber bundles (CF) and L represents an interval when the fiber bundles (CF) are cut out in the longitudinal direction.)
-
公开(公告)号：US20210245448A1
公开(公告)日：2021-08-12
申请号：US17216294
申请日：2021-03-29
摘要： Provided are a method and an apparatus for manufacturing a fiber-reinforced resin molding material by which, when the fiber-reinforced resin molding material is manufactured, separated fiber bundles can be supplied to a cutting machine in stable condition while avoiding the influence of meandering of the fiber bundles or slanting or meandering of filaments occurring in the fiber bundles. A method for manufacturing a sheet-shaped fiber-reinforced resin molding material in which spaces between filaments of cut-out fiber bundles (CF) are impregnated with resin includes, so that a condition of the following expression (1) is satisfied, intermittently separating fibers of the continuous fiber bundles (CF) in a longitudinal direction by a rotational blade (18) serving as a fiber separating part and cutting out the fiber bundles with an interval therebetween in a longitudinal direction of a cutting machine (13A) to obtain the cut-out fiber bundles (CF). Expression (1): 1≤a/L (where a represents a length of a separated part of the continuous fiber bundles (CF) and L represents an interval when the fiber bundles (CF) are cut out in the longitudinal direction.)
-
公开(公告)号：US20210086404A1
公开(公告)日：2021-03-25
申请号：US17113446
申请日：2020-12-07
摘要： Provided is a method for manufacturing a fiber-reinforced resin molding material having excellent productivity at low cost for manufacturing a fiber-reinforced resin molded article having excellent strength properties. Provided is a method for manufacturing a sheet-shaped fiber-reinforced resin molding material containing a plurality of cut fiber bundles and a resin impregnated between filaments of the cut fiber bundles, the method comprising an integrated material manufacturing step for obtaining an integrated material by collecting a sheet-shaped fiber bundle aggregate obtained by arranging and spreading a plurality of consecutive fiber bundles in a width direction.
-
公开(公告)号：US20210078207A1
公开(公告)日：2021-03-18
申请号：US17108230
申请日：2020-12-01
摘要： Provided is a fiber-reinforced resin material molding in which fluctuations of the dispersion state of the fiber bundle in the molding is small, the generation of a resin pool is suppressed, and fluctuations in physical properties such as tensile strength and modulus of elasticity are suppressed; a method for manufacturing the same, and a method for manufacturing a fiber-reinforced resin material. Provided is a fiber-reinforced resin material molding comprising: a fiber bundle comprising a plurality of reinforcing fibers; and a matrix resin, wherein a coefficient of variation in fiber content of the reinforcing fibers per unit zone of 0.1 mm square on a cut face along a thickness direction is 40% or less.
-
公开(公告)号：US20210213716A1
公开(公告)日：2021-07-15
申请号：US17216936
申请日：2021-03-30
IPC分类号： B32B27/18 , D02J1/18 , B29B15/12 , C08J5/04 , B32B27/08 , B32B27/30 , B32B27/38 , D02J13/00 , D06H7/02
摘要： The present invention provides a method for manufacturing a fiber reinforced resin material, the method including an opening step of opening an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting step of heat-setting the opened fiber bundle in the flat state by heating. In addition, the present invention provides an apparatus for manufacturing a fiber reinforced resin material containing a plurality of fiber bundles and a resin, the apparatus including an opening section that opens an elongated fiber bundle to be widened in a width direction thereof to be put into a flat state; and a heat setting section that heat-sets the opened fiber bundle in the flat state by heating.
-
公开(公告)号：US20210017670A1
公开(公告)日：2021-01-21
申请号：US17036333
申请日：2020-09-29
摘要： What is provided is a method for stably producing a fiber-reinforced resin molding material by splitting a fiber bundle such that a split portion becomes long while anon-split portion is shortened. A method for producing a fiber-reinforced resin molding material in which a cut fiber bundle is impregnated with a resin, the method comprising a splitting step of splitting the fiber bundle with a splitting machine at intervals in a longitudinal direction and a cutting step of cutting the fiber bundle at intervals in the longitudinal direction after the splitting step, in which the splitting machine comprises a rotary blade having a releasing section and a spacer member adjacent to the rotary blade.
-
公开(公告)号：US20200277455A1
公开(公告)日：2020-09-03
申请号：US16876173
申请日：2020-05-18
发明人： Junji KANEHAGI , Tadao SAMEJIMA
摘要： A method for manufacturing a fiber-reinforced resin molding material having a cut fiber tow impregnated with a resin includes a separation step of intermittently separating a fiber tow and forming at least two separation-processed lines arranged side by side in a width direction of the fiber tow and a cutting step of cutting the fiber tow at an interval in the longitudinal direction, and the separation step and the cutting step are carried out to satisfy (1) to (3). (1) 1≤c/L≤50 (2) c
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.014 秒)
