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1. 发明专利

JPH03223163A HYBRID FIBER REINFORCED CARBON WIRE 失效
公开(公告)号：JPH03223163A
公开(公告)日：1991-10-02
申请号：JP1696490
申请日：1990-01-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： UTSUNOMIYA MAKOTO , OKUMURA MITSUHIRO , KOGO YASUO , OZAKI TAKESHI
IPC分类号： C04B35/83 , C01B31/02 , C04B35/52 , D07B1/04 , D07B5/00
摘要： PURPOSE:To improve strength of carbon matrix and to exhibit performances of carbon fibers as a main stress carrier by dispersing whiskers into fibrous gaps of carbon fiber bundle. CONSTITUTION:A bundle of 100-20,000 gathered carbon fibers having 3-30mum diameters is formed. The bundle is blended with whiskers 3 having 0.05-1mum diameter and then impregnated with a carbon matrix 2 by chemical vapor phase impregnation. Thus, the objective hybrid fiber reinforced carbon wire formed into a wire state having 0.1-2mm wire diameter is formed.

2. 发明专利

JPH03161324A PIPE FITTED WITH FLANGE MADE OF FIBER REINFORCED COMPOSITE MATERIAL AND PREPARATION THEREOF 失效
公开(公告)号：JPH03161324A
公开(公告)日：1991-07-11
申请号：JP30166289
申请日：1989-11-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： YANO ISAMU , OTSUKA MASATO , OKANDA KATSUHARU , UTSUNOMIYA MAKOTO , HATTA HIROSHI , KOGO YASUO
IPC分类号： B29C70/06 , B29K105/06 , B29L23/00
摘要： PURPOSE:To prevent damage from occuring by stress such as due to bending moment by increasing the strength of the whole and especially increasing the fixing strength of a pipe part and a flange part by embedding a reinforcing fiber composed of knitted structure of a fiber continuous through the pipe part and the flange part in a matrix. CONSTITUTION:A flange forming part 8 is formed to a sleeve-shaped reinforcing fiber 6 composed of a knitted structure of a continuous fiber 6 composed of a knitted structure of a continuous fiber. Next, this sleeve-shaped reinforcing fiber 6 is mounted to a mandrel 11 to form a pipe forming part 7. Subsequently, the reinforcing fiber 6 mounted to the mandrel 11 is set to a mold 12 having a continuous pipe molding cavity and a flange molding cavity to be impregnated with a matrix 5 and the matrix 5 is cured to obtain a desired pipe 1 fitted with a flange made of a fiber reinforced composite material.

3. 发明专利

JPH0375322A SQUARE BEAM MADE OF FIBER REINFORCED METAL 失效
公开(公告)号：JPH0375322A
公开(公告)日：1991-03-29
申请号：JP21234289
申请日：1989-08-18
申请人： MITSUBISHI ELECTRIC CORP
发明人： OKANDA KATSUHARU , KOGO YASUO , UTSUNOMIYA MAKOTO
IPC分类号： C22C47/08 , B29C70/16
摘要： PURPOSE:To obtain the square beam made of FRM having uniform thermal deformation and high strength by impregnating metal into a preform formed by coiling fibers around the outer circumference of a square mandrel for plural times and providing bar-shaped metal or the like in the corner part for every fibrous layer. CONSTITUTION:The layer of fibers 11a is formed on the outer circumference of a square handle 13 or the layer of coiled fibers 11b on the cross. The layer 12 of bar-shaped metal or ceramics is provided in the corner part for every layer, and the layer of fibers 11b is furthermore formed thereon. The above stage is repeated. The formed preform 16 is heated to impregnate molten metal therein, and compounding is executed. Next, the outer circumference and inner circumference are mechanically worked to form a square beam 10 having final shape. In this way, the fattening in the coiling of fibers can be prevented, and the effect that thermal deformation is uniformized and reduced can be obtd. Furthermore, butt parts are not formed, so that the effect of high strength can be obtd.

4. 发明专利

JPH0475763A SURFACE TREATED FIBER REINFORCED METAL AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0475763A
公开(公告)日：1992-03-10
申请号：JP18841390
申请日：1990-07-17
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOGO YASUO , OKUMURA MITSUHIRO , UTSUNOMIYA MAKOTO
IPC分类号： B22D19/14 , C23F1/00
摘要： PURPOSE:To obtain highly reliable fiber reinforced metal with no detachment of film by forming metallic matrix, reinforcing fibers embedded in this metallic matrix and projecting a part thereof on the matrix surface and the film on the matrix surface so as to embed the fibers. CONSTITUTION:This surface treated FRM 1 is produced by etching the surface over one or more layers as fiber layer form the surface in the range that the reinforcing fiber 2 on the FRM surface is not detached, in the etching process, and after that, in the film forming process, forming the film 4 with plating, etc., and embedding the projecting reinforcing fiber in there. In the surface treated FRM 6 manufactured in such way the film replaces the metallic matrix on the surface layer of FRM, i.e., the FRM 6 is formed integrally in a mechanically engaging condition that the film with the fiber by embedding the projecting reinforcing fiber in the film. Therefore, the joined strength of film becomes sum of stuck strength between the film and the metallic matrix and mechanical engagement force between the film and the reinforcing fiber, and even to heat cycle and heat impact, the detachment of film is not developed and the high reliability can be obtd.

5. 发明专利

JPH03161326A PIPE FITTED WITH FLANGE MADE OF FIBER REINFORCED COMPOSITE MATERIAL AND PREPARATION THEREOF 失效
公开(公告)号：JPH03161326A
公开(公告)日：1991-07-11
申请号：JP30164889
申请日：1989-11-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： YANO ISAMU , OTSUKA MASATO , OKANDA KATSUHARU , UTSUNOMIYA MAKOTO , HATTA HIROSHI , KOGO YASUO
IPC分类号： B29C70/06 , B29K105/06 , B29L23/00
摘要： PURPOSE:To enhance the regularity and fiber density of orientation, to reduce wall thickness and to enhance fiber density by embedding a reinforcing fiber consisting of a knitted structure of 20-45 deg. oriented continuous fibers in a crossing direction and a 0 deg. oriented continuous fiber through a pipe part and a flange part and a reinforcing fiber composed of a 90 deg. oriented continuous fiber in a matrix. CONSTITUTION:A flange forming part 8 is formed to a sleeve-shaped knitted structure 6A consisting of 20-45 deg. oriented continuous fibers 6a, 6b in a crossing direction and a 0 deg. oriented continuous fiber 6c. Next, the sleeve-shaped knitted structure 6A is mounted to a mandrel 11 to form a pipe forming part 7 and a 90 deg. oriented continuous fiber 6B is wound around the knitted structure 6A mounted to the mandrel 11 to form a reinforcing fiber 6. Subsequently, the reinforcing fiber 6 mounted to the mandrel 11 is set to a mold 12 having a continuous pipe molding cavity and a flange molding cavity and a matrix is subsequently infiltrated in the reinforcing fiber and cured to obtain a pipe 1 fitted with a flange made of a fiber reinforced composite material.

6. 发明专利

JPH03161325A PIPE FITTED WITH FLANGE MADE OF FIBER REINFORCED COMPOSITE MATERIAL AND PREPARATION THEREOF 失效
公开(公告)号：JPH03161325A
公开(公告)日：1991-07-11
申请号：JP30166389
申请日：1989-11-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： YANO ISAMU , OTSUKA MASATO , OKANDA KATSUHARU , UTSUNOMIYA MAKOTO , HATTA HIROSHI , KOGO YASUO
IPC分类号： B29C70/06 , B29K105/06 , B29L23/00
摘要： PURPOSE:To enhance the strength such as the torsional strength or bending strength of the whole by embedding a reinforcing fiber composed of a knitted structure of 20-45 deg. oriented continuous fibers in a crossing direction and a 0 deg. oriented continuous fiber through a pipe part and a flange part in a matrix. CONSTITUTION:A flange forming part 8 is formed to a sleeve-shaped reinforcing fiber 6 composed of a knitted structure of 20-45 deg. oriented continuous fibers 6a, 6b in a crossing direction and a 0 deg. oriented continuous fiber 6c. Next, the sleeve-shaped reinforcing fiber 6 is mounted to a mandrel 11 to form a pipe forming part 7. Thereafter, the reinforcing fiber 6 mounted to the mandrel 11 is set to a mold 12 having a continuous pipe molding cavity and a flange molding cavity and a matrix is subsequently infiltrated in the reinforcing fiber 6 and curved to obtain a desired pipe fitted with a flange made of a fiber reinforced composite material.

7. 发明专利

JPS634033A PREFORM FOR PRODUCING FIBER-REINFORCED METAL 失效
公开(公告)号：JPS634033A
公开(公告)日：1988-01-09
申请号：JP14652586
申请日：1986-06-23
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOGO YASUO , UTSUNOMIYA MAKOTO , KAGAWA YUTAKA , OKUMURA MITSUHIRO
IPC分类号： B22D19/14 , C22C47/08
摘要： PURPOSE:To obtain a titled preform which maintains a prescribed shape during casting and with which impregnation of a metal is surely executed by housing a fiber molding having a prescribed shape into the cavity of a metallic container having an aperture and special through-holes at the points apart therefrom. CONSTITUTION:The fiber molding 1 formed to the prescribed shape is housed into the metallic container 2 having the cavity of the shape approximately equal to the shape of said molding. The metallic container 2 has the aperture 3 into which a molten metal flows at the time of high-pressure casting and at least >=1 pieces of the through-holes 4 having 0.1-10mmphi diameter at the points apart therefrom. The aperture 3 is capped by preferably a wire net 5, etc., to restrain and fix the fiber molding 1 to the metallic container. The metallic container 2 is formed of the same metal as a matrix metal and is preferably formed to >=5mm wall thickness. The molding 1 can be constituted by using >=1 kinds of fibers of C, SiC, Si3N4, Al2O3 and B. The preform from which the defectless fiber-reinforced metal can be produced is thus obtd.

8. 发明专利

JPH03223165A PRODUCTION OF CARBON/CARBON COMPOSITE MATERIAL BY COMPOSITE TYPE VAPOR PHASE IMPREGNATION METHOD 失效
公开(公告)号：JPH03223165A
公开(公告)日：1991-10-02
申请号：JP1696690
申请日：1990-01-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： OKUMURA MITSUHIRO , UTSUNOMIYA MAKOTO , KOGO YASUO , OZAKI TAKESHI
IPC分类号： C04B35/83 , C01B31/02 , C04B35/52
摘要： PURPOSE:To obtain a carbon/carbon composite material having excellent strength and toughness by depositing and packing a carbonaceous substance produced by decomposition of hydrocarbon gas into a reinforced material consisting of a carbon-based fiber while forming the carbonaceous substance into a composite type by a combination of pyrolysis and reaction excitation. CONSTITUTION:A carbon-based fiber produced by rayon, polyacrylonitrile, petroleum, etc., as a raw material is used as a reinforcing material. A hydrocarbon gas such as methane, ethane, propane or benzene or hydrocarbon gas containing a halogen element such as chlorine is prepared. Then, these gasses are decomposed and the resultant carbonaceous substance is deposited and packed into the above-mentioned reinforcing material to provide the carbon/ carbon composite material. In this time, the carbon/carbon composite material is formed into composite type by a combination of pyrolysis of raw material gas or by a combination of specific supply system of the pyrolysis, reaction excitation and raw material gas.

9. 发明专利

JPH03223164A PRODUCTION OF CARBON/CARBON COMPOSITE MATERIAL USING CARBON/CARBON COMPOSITE ROD 失效
公开(公告)号：JPH03223164A
公开(公告)日：1991-10-02
申请号：JP1696590
申请日：1990-01-26
申请人： MITSUBISHI ELECTRIC CORP
发明人： OKUMURA MITSUHIRO , UTSUNOMIYA MAKOTO , KOGO YASUO , OZAKI TAKESHI
IPC分类号： C04B35/83 , C01B31/02 , C04B35/52 , D02G3/02 , D02G3/36 , D03D1/00 , D03D23/00
摘要： PURPOSE:To obtain a carbon/carbon composite material having excellent strength and toughness by compactly packing a carbonaceous substance in the space of preform formed by a carbon/carbon composite rod filling the carbonaceous substance in the space of a carbon fiber bundle. CONSTITUTION:A precursor of carbon is impregnated into the space of carbon fiber 14 bundle and then burned or a carbonaceous substance 15 is filled into the above-mentioned space by a vapor phase method to remove residual pores. Carbon/carbon composite rod 12 obtained by the first process is oriented into two dimensions or tree dimensions to form a preform 13 of fabric, etc. The above-mentioned precursor is impregnated into the space distributing in the two dimensions or three dimensions in the preform 13 obtained by the second process and then burned or compounded by vapor phase method or in combination thereof to provide the carbon/carbon composite.

10. 发明专利

JPS649834A WHISKER-REINFORCED GLASS 失效
公开(公告)号：JPS649834A
公开(公告)日：1989-01-13
申请号：JP16572787
申请日：1987-07-02
申请人： MITSUBISHI ELECTRIC CORP
发明人： KAGAWA YUTAKA , HATTA HIROSHI , KOGO YASUO , UTSUNOMIYA MAKOTO
IPC分类号： C03C13/00 , C03C14/00
摘要： PURPOSE:To obtain a whisker-reinforced glass having low density, small total area of interface between the whisker and the glass and improved mechanical characteristics, by dispersing whiskers in a glass matrix with continuous concentration gradient. CONSTITUTION:Whiskers are dispersed in a glass matrix 2 consisting of an amorphous or crystalline glass. The volume content of the whisker in the glass is made highest at a part where the reinforcing effect is especially required. The volume content of whisker in the matrix 2 is gradually decreased and is made lowest at the surface part (b) where the requirement of the reinforcing effect is not so serious. The whisker-reinforced glass of the present invention having the above structure has high specific elastic modulus, specific strength and fracture toughness compared with conventional material. The volume content of whisker is decreased to the necessary minimum level in the present reinforced glass and, accordingly, the total area of the interface between the whisker and the glass matrix can be decreased and the cost of the reinforced glass can be reduced. The whisker is e.g. SiC, Si3N4 or C whisker.

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