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1. 发明专利

JPH09209501A FIXATION PART STRUCTURE FOR FIBER-REINFORCED PLASTIC CABLE 失效
公开(公告)号：JPH09209501A
公开(公告)日：1997-08-12
申请号：JP1889396
申请日：1996-02-05
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KIMURA HIROMI , SEISHIYOU MORIO , EGUCHI TATSUYA , OKADA HIROYUKI
IPC分类号： E04C5/12
摘要： PROBLEM TO BE SOLVED: To provide a large-capacity, simple fixation part structure by fixing the load end side of an FRP cable radially spread and arranged in a conical socket with a thermosetting resin, and fixing the free end side with the thermosetting resin and a filler. SOLUTION: The terminal section of an FRP cable converged with many FRP wires 1 is inserted into a socket 3 formed into a conical shape so that the load end side of the cable 2 is made a small diameter and the free end side is made a large diameter, and the wires 1 are dispersively arranged in the socket 3 radially from the load end side to the free end side. A fixing material 6 made of only a thermosetting resin 4 is filled on the load end side in the socket 3, and the fixing material 6 made of a mixture of the thermosetting resin 4 and a filler 5 is filled on the free end side. The length of the fixing material 6 made of only the thermosetting resin 4 is preferably set to 1/20-2/3 of the whole length of the socket 3. The strength reduction due to vibration is prevented, and high safety can be maintained even when the resin of a fixation section is damaged.

2. 发明专利

JPH09170138A TRIAXIAL WOVEN FABRIC AND ITS PRODUCTION 失效
公开(公告)号：JPH09170138A
公开(公告)日：1997-06-30
申请号：JP32857495
申请日：1995-12-18
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO , SAKASE ADTEC KK
发明人： KIMURA HIROMI , FURUYAMA MASATOSHI , TADOKORO HIROYUKI , SHIBATA HIROTAKA , OISHIBASHI HIROHARU
IPC分类号： D01F9/145 , B29C70/22 , D03D13/00 , D03D15/12 , D03D25/00 , D03D41/00
摘要： PROBLEM TO BE SOLVED: To provide a lightweight triaxial woven fabric having high elasticity and high thermal conductivity by using pitch carbon fibers. SOLUTION: Pitch carbon fibers with tensile elasticity(TE) of 35t/ mm , tensile strength of 300kg/mm , tensile elongation at break of >=0.6%, fiber diameter of =80W/mK are used to produce lightweight triaxial woven fabric constituted with fiber boundles having fiber fineness of 40g/km

3. 发明专利

JPH06160257A METHOD FOR MEASURING ORIENTATION ANGLE OF FIBER IN CONTINUOUS FIBER REINFORCED PLASTIC 失效
公开(公告)号：JPH06160257A
公开(公告)日：1994-06-07
申请号：JP33357792
申请日：1992-11-19
申请人： NIPPON STEEL CHEMICAL CO , NIPPON STEEL CORP
发明人： KIMURA HIROMI
IPC分类号： G01N1/32
摘要： PURPOSE:To determe orientation angle of fiber accurately by polishing a fiber reinforced plastic to provide a cross-section inclining at an angle within a predetermined range with respect to the reinforcing direction and measuring long and short diameters of fiber on the polished surface. CONSTITUTION:Reinforcing fiber 2 and basic material 3 may be combined arbitrarily so long as an FRP 1 is reinforced at least partially in one direction by continuous fibers. The fiber 2 has preferably right circular cross-section. The FRP 1 is polished to make an angle of 5-60 deg. with respect to the reinforcing direction. The FRP 1 may be polished solely or while being embedded in a resin. Polished FRP 1 is observed by means of a microscope. The microscope is selected from optical microscope, stereoscopic microscope, electronic microscope, etc., depending on the fiber diameter or sample profile. The fiber has elliptical cross-section and lond and short diameters (b), (a) thereof are measured. Assuming the inclination angle of the cross-section of the FRP 1 is theta, inclination angle (alpha) of the fiber with respect to the reinforcing direction can be determined according to the following formula alpha=¦theta-cos (a/b)¦. The angle alpha is measured for a plurality of fibers 2 and processed statistically thus determining the orientation angle of fiber.

4. 发明专利

JPH0465572A METHOD FOR CARRYING OUT SURFACE OXIDATION TREATMENT OF CARBON FIBER AND TREATING DEVICE THEREFOR 失效
公开(公告)号：JPH0465572A
公开(公告)日：1992-03-02
申请号：JP17748890
申请日：1990-07-06
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KIMURA HIROMI
IPC分类号： D06M10/00 , D06M101/00 , D06M101/40
摘要： PURPOSE:To enable effective surface oxidation treatment of carbon fiber even having high modulus by electrolyzing an electrolytic solution in a state in which part of a cathode is exposed from the electrolytic solution into air when a carbon fiber is subjected to anode oxidation in the electrolytic solution. CONSTITUTION:For example, a carbon fiber bundle 1 is introduced through a current-carrying roll 2 into an electrolyzer 6 in which electrolytic solution consisting of 1N aqueous solution of sulfuric acid is packed and positive charge is applied to the carbon fiber bundle 1 with the current-carrying roll 2 and electricity is continuously applied in a state in which the upper part of cathode 4 is exposed in air. Thereby the surface of a carbon fiber even having high modulus is effectively subjected to oxidation treatment.

5. 发明专利

JPH0716317A FACE PLATE FOR HEAD OF GOLF CLUB AND ITS MANUFACTURE 失效
公开(公告)号：JPH0716317A
公开(公告)日：1995-01-20
申请号：JP16124793
申请日：1993-06-30
申请人： NIPPON STEEL CHEMICAL CO , NIPPON STEEL CORP
发明人： KIMURA HIROMI , MAIKUMA HIRONORI , YAMASHITA HIROAKI , KUBOMURA KENJI
IPC分类号： A63B53/04
摘要： PURPOSE:To provide a face plate for a head of a golf club made of a fiber- reinforced resin beautiful and adapted to prevent a loss and wear of a groove part and a method for manufacturing the face plate by a relatively low molding pressure. CONSTITUTION:This face plate for a head of a golf club is made of a fabric material with one or several layers of reinforcing fibers near the surface wherein a part or the whole of the fabric material is given a cut along a groove on the surface of the face. A plurality of sheets of prepreg are laminated so that one or several sheets of textile-shaped prepreg given a cut to match the shape of the groove part of the face plate are positioned near the surface of the face plate and arranged so that the cut in a molding die having a protrusion corresponding to the shape of the groove part corresponds to a protrusion. Then, a thermosetting resin is hardened by heating under a pressure.

6. 发明专利

JPH08209492A TRIAXIAL WOVEN FABRIC AND ITS PRODUCTION 失效
公开(公告)号：JPH08209492A
公开(公告)日：1996-08-13
申请号：JP28625995
申请日：1995-11-02
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO , SAKASE ADTEC KK
发明人： KIMURA HIROMI , SHIBATA HIROTAKA , KUBOMURA KENJI
IPC分类号： D01F9/145 , D03D15/12 , D03D25/00
摘要： PURPOSE: To produce a triaxial wove fabric suitable as a reinforcing material having a light weight bad a high modulus of elasticity by using the bundle of carbon fibers started from an optically anisotropic pitch and having a specific crimp releasing ratio. CONSTITUTION: This triaxial woven fabric is obtained by weaving a triaxial woven fabric having 45-300g/m weight, a crimp releasing ratio [(L -L)/L] satisfying [(Lo -L)Lo ]×0.7>=[(L -L)/L]>=0 (L is the length of the warp yarn fiber bundle, Lo is the length along the direction of the crimp of the warp yarn fiber bundle having the length L, and L is the drawing out length of a fiber from the fiber bundle having the length L) and also having a basic structure in which both warp and waft yarns cross each other by the angle of ±60 deg. from the weaving width direction, by using the bundle of carbon fibers made form an optically anisotropic pitch as a raw material and having >=300kgf/mm tensile strength, >=0.6% tensile breakage distortion, >=15tf/mm tensile modulus of elasticity and 40-300g/mm thickness as warp yarn and a weft yarn having substantially the same cross section of the bundle of fibers, and then heat-treating the fabric at >=1800 deg.C under an inert gas atmosphere and immersing it into a resin to obtain a triaxial woven fabric resin matrix composite having >=3tf/mm tensile modulus of elasticity.

7. 发明专利

JPH068345A PRODUCTION OF PIPE BODY MADE OF FIBER REINFORCED PLASTIC 失效
公开(公告)号：JPH068345A
公开(公告)日：1994-01-18
申请号：JP16971592
申请日：1992-06-26
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KIMURA HIROMI , OSONE HIDEO , KUBOMURA KENJI
IPC分类号： B29C70/16 , B29C70/06 , B29K101/10 , B29K105/08 , B29L23/00 , B29C67/14
摘要： PURPOSE:To produce a pipe body made of fiber reinforced plastic free from voids while putting the advantages of a filament winding method to practical use. CONSTITUTION:A reinforcing fiber 1 is wound around a core metal 2 to be transferred into a container along with the core metal and, after the container is evacuated, the reinforcing fiber is dipped in a liquid thermosetting resin and the pressure in the container is set to 1atm or more. Thereafter, the core metal having the reinforcing fiber 1 wound therearound is taken out and the resin is heated and cured to obtain a pipe body made of fiber reinforced plastic free from voids.

8. 发明专利

JPH06888A CARBON FIBER REINFORCED RESIN COMPOSITE MATERIAL AND PRODUCTION THEREOF 失效
公开(公告)号：JPH06888A
公开(公告)日：1994-01-11
申请号：JP16107392
申请日：1992-06-19
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KIMURA HIROMI , SHIMADA MASAKI , OMIYA SHINICHI , KUBOMURA KENJI
IPC分类号： B29C70/16 , B29C70/10 , B29K105/08 , B29C67/14
摘要： PURPOSE:To obtain a molded product excellent in compression strength, bending strength and twist strength by molding fiber bundles of a pitch type carbon fiber and a polyacrylonitrile (PAN) base carbon fiber both of which have specific strengths and specific fiber diameters by a filament winding method winding the fiber bundles around a core metal in the same direction at the same time. CONSTITUTION:A pitch base carbon fiber to be used is characterized by that tensile elastic modulus is 400GPa or more, tensile strength is 2000MPa or more, the compression strength of a unidirectional reinforced composite material is 100-800MPa and a diameter is 4-15mum and a PAN base carbon fiber to be used is characterized by that tensile elastic modulus is 200GPa or more, the compression strength and compression breakage strength thereof is higher than those of the pitch type carbon fiber and a diameter is smaller than that of the pitch base carbon fiber. The fiber bundles 1, 2 of these fibers are combined in a predetermined ratio to be drawn out and impregnated with an uncured resin in an impregnation tank 3 and the impregnated fiber bundles are wound around a mandrel 5 through a delivery eye 4 to be molded.

9. 发明专利

JPH06143478A BAR MATERIAL MADE OF FIBER REINFORCED PLASTIC AND PRODUCTION THEREOF 失效
公开(公告)号：JPH06143478A
公开(公告)日：1994-05-24
申请号：JP32138292
申请日：1992-11-06
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KIMURA HIROMI , YAMADA KANJI , HIRATO YASUHIRO
IPC分类号： B29C70/06 , B29C53/58 , B29C61/00 , B29C70/08 , B29C70/20 , B29K105/08 , B29L31/10 , B32B5/28 , B32B37/00 , D01F6/06 , E04C5/07 , B29C67/14 , B29D9/00
摘要： PURPOSE:To provide a bar material made of fiber reinforced plastic not deteriorated even when mortar or concrete is aged in an autoclave. CONSTITUTION:A bar material is constituted of a core material 1 and a surface material 2 and the core material 1 is constituted of high strength continuous fibers 3 and a matrix resin 4 and the surface material 2 is constituted of polypropylene fibers.

10. 发明专利

JPH07276538A ROLL MADE OF CARBON-FIBER-REINFORCED PLASTIC AND ITS MANUFACTURE 失效
公开(公告)号：JPH07276538A
公开(公告)日：1995-10-24
申请号：JP10163694
申请日：1994-04-15
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KIMURA HIROMI , KUBOMURA KENJI , MARUI TAKETOSHI
IPC分类号： F16C13/00 , B29C69/00 , B29C70/16 , B29D99/00 , B29K105/08 , B29L31/32 , C25D5/54 , D01F9/12 , B29D31/00
摘要： PURPOSE:To provide a manufacture of an easily platable pipe body as to a metal coated roll made of a carbon-fiber-reinforced plastic. CONSTITUTION:This roll is constituted of a pipe body layer made of a carbon- fiber-reinforced plastic 1 which is comprised by being wound up in the circumferential direction by a filament winding method and a metallic plated layer 2 circumscribing the pipe body layer. The pipe body made of the carbon fiber reinforced plastic 1 wherein a carbon fiber of a surface layer of a pipe body is comprised by being wound up in the circumferential direction by the filament winding method is molded and the outer surface of the pipe body is coated with the metal by an electric plating method. Hereby, since the carbon fiber of the outermost layer is wound up in the circumferential direction, it becomes possible that the electric plating is performed directly upon the same.

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