公开(公告)号：US06273830B1

公开(公告)日：2001-08-14

申请号：US09384385

申请日：1999-08-27

申请人： Shinichi Takemura ,  Hideyuki Ohno ,  Tomohiro Nakanishi ,  Yutaka Arai ,  Mikio Shima

发明人： Shinichi Takemura ,  Hideyuki Ohno ,  Tomohiro Nakanishi ,  Yutaka Arai ,  Mikio Shima

IPC分类号： A63B5310

CPC分类号： B29C70/30 ,  A63B53/10 ,  A63B60/06 ,  A63B60/08 ,  A63B60/10 ,  A63B60/54 ,  A63B2060/0081 ,  A63B2209/02 ,  A63B2209/026 ,  B29K2995/0089 ,  B29L2031/5227 ,  B32B5/28 ,  Y10T428/139

摘要： A tapered hollow shaft made of a fiber reinforced composite material, which comprises: (a) at least one angle layer consisting essentially of polyacrylonitrile-based carbon fibers having a tensile modulus ranging from 200 to 500 GPa and a tensile strength ranging from 4000 to 5600 MPa; (b) at least one straight layer consisting essentially of polyacrylonitrile-based carbon fibers having a tensile modulus ranging from 200 to 460 GPa and a tensile strength ranging from 3500 to 5600 MPa; (c) at least one reinforcing layer consisting essentially of pitch-based carbon fibers or polyacrylonitrile-based carbon fibers each having a compressive breaking strain of 1.7 to 5.0%, a tensile modulus ranging from 5 to 160 GPa, a tensile strength ranging from 500 to 3000 MPa and a density ranging from 1.5 to 1.9 g/cm3 with the carbon fibers in the reinforcing layer being oriented to incline at an angle of 0° to ±5° to the axial direction of the shaft, with the reinforcing layer being arranged at the thinner portion of the shaft to extend from a tip thereof up to at least {fraction (1/20)} and not more than ¾ of the entire length of the shaft, and with the reinforcing layer being arranged at the outermost portion of the shaft.

摘要翻译： 一种由纤维增强复合材料制成的锥形空心轴，其包括：（a）至少一个角度层，其基本上由聚丙烯腈基碳纤维组成，拉伸模量范围为200-500GPa，拉伸强度为4000-5600 MPa; （b）至少一个直层，其基本上由聚丙烯腈基碳纤维组成，拉伸模量范围为200-460GPa，拉伸强度为3500-5600MPa; （c）基本上由沥青类碳纤维或聚丙烯腈类碳纤维组成的至少一种增强层，其各自的压缩断裂应变为1.7〜5.0％，拉伸弹性模量为5〜160GPa，拉伸强度为500 至3000MPa，密度范围为1.5至1.9g / cm 3，加强层中的碳纤维相对于轴的轴向以0°至±5°的角度倾斜，并且加强层被布置 在所述轴的较薄部分处从其尖端延伸到所述轴的整个长度的至少{分数（1/20）}且不大于3/4，并且所述加强层布置在所述轴的最外部 轴。

公开(公告)号：US06228473B1

公开(公告)日：2001-05-08

申请号：US09334790

申请日：1999-06-16

申请人： Shinichi Takemura ,  Yoshio Soda ,  Hideyuki Ohno ,  Yutaka Arai ,  Tomohiro Nakanishi

发明人： Shinichi Takemura ,  Yoshio Soda ,  Hideyuki Ohno ,  Yutaka Arai ,  Tomohiro Nakanishi

IPC分类号： B32B508

CPC分类号： B32B5/26 ,  B29C70/40 ,  B32B2262/106 ,  B32B2605/18 ,  Y10T428/249933 ,  Y10T428/249934 ,  Y10T428/249939 ,  Y10T428/249945 ,  Y10T428/249952

摘要： Disclosed is a plate-like carbon fiber-reinforced composite material comprising carbon fibers, wherein that the carbon fibers have a strain at compressive break of 1.7 to 5%, a tensile elastic modulus of 5 to 160 GPa, and a density of 1.5 to 1.9 g/cm3 and further in that the composite comprising said carbon fibers cause no delamination by an impact energy of less than 1.4 J/mm in the test of compression after impact in accordance with JIS K 7089.

摘要翻译： 公开了一种包含碳纤维的板状碳纤维增强复合材料，其中碳纤维的压缩断裂应变为1.7〜5％，拉伸弹性模量为5〜160GPa，密度为1.5〜1.9 g / cm 3，进一步的是，根据JIS K 7089，在冲击后的压缩试验中，包含所述碳纤维的复合材料在不超过1.4J / mm的冲击能量下不会发生分层。

公开(公告)号：US5334124A

公开(公告)日：1994-08-02

申请号：US116052

申请日：1993-09-02

申请人： Hideyuki Ohno

发明人： Hideyuki Ohno

IPC分类号： F16C13/00 ,  B21B31/08 ,  B60B5/00

CPC分类号： F16C13/00 ,  B05D5/083 ,  B32B1/08 ,  B32B27/04 ,  B32B27/06 ,  B05D1/06 ,  B05D2401/32

摘要： A guide roll comprising an inside layer made of a fiber-reinforced material which consists essentially of an epoxy resin composition as a matrix and at least one kind of reinforcing fibers selected from the group consisting of carbon fibers, glass fibers, alumina fibers, aramide fibers, polyester fibers and polyethylene fibers, and an outside layer which consists essentially of a fluororesin.

摘要翻译： 一种引导辊，其包括由纤维增强材料制成的内层，该内层基本上由基于环氧树脂组合物和至少一种选自碳纤维，玻璃纤维，氧化铝纤维，芳族聚酰胺纤维的增强纤维组成 ，聚酯纤维和聚乙烯纤维，以及基本上由氟树脂组成的外层。

公开(公告)号：US06171696B2

公开(公告)日：2001-01-09

申请号：US09316246

申请日：1999-05-21

申请人： Shinichi Takemura ,  Yoshio Soda ,  Hideyuki Ohno ,  Yutaka Arai ,  Tomohiro Nakanishi

发明人： Shinichi Takemura ,  Yoshio Soda ,  Hideyuki Ohno ,  Yutaka Arai ,  Tomohiro Nakanishi

IPC分类号： D01F9145

CPC分类号： D01F9/15 ,  D01F9/145 ,  Y10T428/24994 ,  Y10T428/29 ,  Y10T428/2964 ,  Y10T428/298 ,  Y10T442/2008 ,  Y10T442/603

摘要： The resent invention provides a carbon fiber which enables a molded article produced from a fiber-reinforced composite material using the carbon fiber to exhibit excellent flexibility and to be freed from defects such as bending. According to the method of the present invention the carbon fiber is produced by a two-stage infusibilizing process, namely carrying out a first-stage infusibilization of a pitch-based fiber, which is obtained from mesophase pitch having a softening point of 200 to 400° C. and a true density of 1.30 to 1.38 g/cm3, in a mixed gas atmosphere having a nitrogen dioxide concentration of 1 to 5% by volume and an oxygen concentration of 5 to 50% by volume, the balance being an inert gas or steam, at a temperature between 100 and 200° C. and then carrying out a second-stage infusibilization of the product of the first-stage infusibilization in a mixed gas atmosphere having a nitrogen dioxide concentration of 0.1 to 5% by volume and an oxygen concentration of 5 to 40% by volume, the balance being an inert gas or a mixture of the inert gas and steam, at a temperature between 200 and 350° C.

摘要翻译： 本发明提供了一种碳纤维，其使得使用碳纤维的纤维增强复合材料制成的模制品显示出优异的柔性并且不会产生诸如弯曲的缺陷。根据本发明的方法，碳纤维是 通过两阶段渗透法生产，即进行沥青基纤维的第一阶段熔融，其由软化点为200-400℃的中间相沥青获得，真密度为1.30-1.38g / cm3，在二氧化氮浓度为1〜5体积％，氧浓度为5〜50体积％，余量为惰性气体或蒸汽的混合气体气氛中，温度为100〜200℃ 然后在二氧化氮浓度为0.1〜5体积％，氧浓度为5〜40体积％的混合气体气氛中进行第一阶段生产的产品的第二阶段的混合， 在余量为惰性气体或惰性气体与蒸汽的混合物之间，温度为200-350℃。