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61. 发明专利

JPS59224410A VALVE SPRING RETAINER OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS59224410A
公开(公告)日：1984-12-17
申请号：JP9982683
申请日：1983-06-03
申请人： TOYOTA MOTOR CO LTD
发明人： DOUNOMOTO TADASHI , TANAKA ATSUO
IPC分类号： F01L3/10
摘要： PURPOSE:To raise the revolving speed generated by surge of valve, by making a valve spring retainer from a light metal reinforced compositely with short fibers, and thereby reducing the inertia mass of the valve system. CONSTITUTION:A valve spring retainer is formed from an aluminum alloy reinforced compositely with silundum whisker in its whole construction. This gives the retainer a light weight to suppress the inertia mass of the valve system, and thereby the number of revolutions of engine at the time of valve surge can be raised. A high thermal conductivity of this material provides good radiation of the heat from the valve, which reduces the thermal load applied to the valve seat.

62. 发明专利

JPS59121414A SHIFT FORK 失效
公开(公告)号：JPS59121414A
公开(公告)日：1984-07-13
申请号：JP23470582
申请日：1982-12-27
申请人： TOYOTA MOTOR CO LTD
发明人： FUNATANI SEIJI , DOUNOMOTO TADASHI , TANAKA ATSUO , TATEMATSU YOSHIAKI
IPC分类号： B22D19/14 , B21J5/00 , C22C47/08 , F16H63/00 , F16H63/32 , G05G3/00
摘要： PURPOSE:To increase greatly the rigidity and strength of a head part and to improve the wear resistance of the groove wall surface of the head part with reduction of weight, by using a composite material containing a light alloy material and fibers mixed together. CONSTITUTION:A fiber/light alloy composite material 4 obtained by mixing fibers and a light alloy material like an Al alloy, Mg alloy, etc. together is used for form a head part 2 having a groove 3 into which the tip of a change lever is inserted. A long fiber 6 uses carbon fiber, boron fiber, silicon carbide fiber, etc.; while a short fiber 5 uses alumina fiber, carbon fiber, etc. For production of such a shift fork, a fiber product formed into a columnar shape, etc. is preheated and set into a cast. Then the light alloy molten melt is quickly poured into the cast, and the voltage of a prescribed high level is applied to the molten metal. This melt is filled into gaps among fibers. Then the fiber product is taken out of the cast after the light alloy is solidified. Thus a fiber/light alloy composite material is obtained, and plastic or mechanical processing such as a hot extrusion process, etc. is applied to said material.

63. 发明专利

JPS5874267A HIGH PRESSURE CASTING DEVICE FOR PRODUCTION OF COMPOSITE MATERIAL 失效
公开(公告)号：JPS5874267A
公开(公告)日：1983-05-04
申请号：JP17349081
申请日：1981-10-28
申请人： TOYOTA MOTOR CO LTD
发明人： DOUNOMOTO TADASHI , TANAKA ATSUO
IPC分类号： B22D19/14 , B22D19/02 , B22D27/11 , C22C47/00 , C22C47/08 , C22C47/12
摘要： PURPOSE:To heat a reinforcing material to temp. higher than the m.p. of a matrix metal and to obtain a composite material wherein the reinforcing material and the matrix metal are adhered tightly and satisfactorily by packing the 1st chamber and the 2nd chamber through a small hole for holding moldings of reinforcing materials with the molten matrix metal. CONSTITUTION:Moldings 13 of reinforcing materials molded to a prescribed shape are placed on th shoulder parts 11 and 12 of a mold 1. A molten matrix metal 8 is introduced slowly into an upper chamber 5. The entire region in a lower chamber 6 and the chamber 5 is packed with the metal 8. The metal 8 is pressurized with a plunger 14 and the pressurizing state is held until the metal 8 solidifies thoroughly. After the metal 8 in the mold 1 solidifies, the mold haves 3, 4 are parted, and the solidified body is removed. The solidified matrix metal in the chamber 5, the chamber 6 and a hollow part 15 is removed, and the composite material of a cylindrical shape is removed.

64. 发明专利

JPS5834150A PRODUCTION OF COMPOSITE MATERIAL 失效
公开(公告)号：JPS5834150A
公开(公告)日：1983-02-28
申请号：JP13253881
申请日：1981-08-24
申请人： TOYOTA MOTOR CO LTD
发明人： DOUNOMOTO TADASHI , TANAKA ATSUO
IPC分类号： B22D19/14 , C22C47/00 , C22C47/08 , C22C47/12
摘要： PURPOSE:To compound matrix metals and reinforcing fiber materials in an outstanding state in the stage of producing a fiber reinforced metallic composite material by using the reinforcing fibers which are held stuck with inorg. binders on at least the outside circumferential parts thereof. CONSTITUTION:A reinforcing material 3 consisting of a coil-like molding 3 of fibers of boron, carbon, alumina, silicon carbide, etc., is stuck with sodium silicate, colloidal silica, ethyl silicate, etc. in the state of liquid and is then heated to allow moisture to evaporate and to allow silica to remain. The shape of the fiber molding is held and fixed by said silica. Such material 3 is disposed in an accepting chamber 5 of dies 4 for casting, and after an Al alloy as a matrix metal is heated to temp. higher than its melting temp., the molten Al alloy 7 as the matrix metal is charged into a pressurizing chamber 6 and is cooled to solidify while the molten alloy is pressurized with a plunger element 8 for pressurizing. The fiber reinforced metallic composite material having excellent performance is obtained without disturbance in the orienting state of the material 3.

65. 发明专利

JPS57158346A MANUFACTURE OF COMPOSITE MATERIAL 失效
公开(公告)号：JPS57158346A
公开(公告)日：1982-09-30
申请号：JP4484981
申请日：1981-03-26
申请人： TOYOTA MOTOR CO LTD
发明人： DOUNOMOTO TADASHI , TANAKA ATSUO
IPC分类号： B22D19/14 , C22C47/00 , C22C47/08 , C22C47/12
摘要： PURPOSE:To efficiently manufacture a metallic composite material of high performance at a low cost by heating a reinforcing material put in a heat insulating container made of refractory to a temp. above the m.p. of a matrix metal and applying a high pressure casting method. CONSTITUTION:A reinforcing material 1 of B, C, Al2O3, SiC or the like having a porous structure is put in a heat insulating container 2 made of refractory, and it is heated to a temp. above the m.p. of a matrix metal such as Al. The container 2 is set in a metallic mold 4, and the molten matrix metal 5 is injected and solidified while applying a pressure to the metal with a plunger element 6. The prescribed shape, density and oriented state of the reinforcing material 1 are kept by the container 2 even during the casting, and the material 1 is maintained at a temp. above the m.p. of the matrix metal 5 by the heat insulating property of the container 2. Accordingly, the metal 5 permeates well into the porous structure of the suitably oriented reinforcing material 1.

66. 发明专利

JPS57158344A MANUFACTURE OF COMPOSITE MATERIAL 失效
公开(公告)号：JPS57158344A
公开(公告)日：1982-09-30
申请号：JP4484781
申请日：1981-03-26
申请人： TOYOTA MOTOR CO LTD
发明人： DOUNOMOTO TADASHI , TANAKA ATSUO
IPC分类号： B22D19/14 , B22D19/04 , C22C47/00 , C22C47/08 , C22C47/12
摘要： PURPOSE:To efficiently manufacture a metal-base composite material of high performance at a low cost by putting a reinforcing material in a container, heating it to a temp. above the m.p. of a matrix metal, and applying a high pressure casting method. CONSTITUTION:A reinforcing material 1 such as fibers, thin wire rods, powder or whiskers of B, C, Al2O3, SiC or the like is packed into the molding chamber of a container 2 made of stainless steel or the like so as to form a porous structure and an air chamber 3 at one end of the container 2. The material 1 is heated to a temp. above the m.p. of a metal such as Al used as a matrix metal, and the container 2 is set in a container receiving chamber 5. The molten matrix metal 8 is introduced into a pressurizing chamber 7 and solidified while applying a pressure to the metal with a plunger element 9. Since a heat insulating space 6 exists between the container 2 and a metallic mold 4, the molten metal 8 does not solidify rapidly and permeates well into the reinforcing material 1.

67. 发明专利

JPH0564692B2 失效
公开(公告)号：JPH0564692B2
公开(公告)日：1993-09-16
申请号：JP21238887
申请日：1987-08-26
申请人： TOYOTA MOTOR CO LTD
发明人： KUBO MASAHIRO , TANAKA ATSUO
IPC分类号： B22D18/02 , B22D19/02 , B22D19/14 , C22C47/00 , C22C47/08 , C22C47/12 , C22C1/09

68. 发明专利

JPH0526855B2 失效
公开(公告)号：JPH0526855B2
公开(公告)日：1993-04-19
申请号：JP1979386
申请日：1986-01-31
申请人： TOYOTA MOTOR CO LTD
发明人： KUBO MASAHIRO , DONOMOTO TADASHI , TANAKA ATSUO , HIRAI HIDETOSHI
IPC分类号： C22C32/00 , C22C21/12 , C22C29/12 , C22C47/00 , C22C49/00 , C22C49/06

69. 发明专利

JPH0440104B2 失效
公开(公告)号：JPH0440104B2
公开(公告)日：1992-07-01
申请号：JP11039183
申请日：1983-06-20
申请人： TOYOTA MOTOR CO LTD
发明人： DONOMOTO TADASHI , TANAKA ATSUO , KATO SHINJI
IPC分类号： B22C9/10 , B22D18/02

70. 发明专利

JPH0316220B2 失效
公开(公告)号：JPH0316220B2
公开(公告)日：1991-03-05
申请号：JP13422982
申请日：1982-07-30
申请人： TOYOTA MOTOR CO LTD
发明人： DONOMOTO TADASHI , TANAKA ATSUO , TATEMATSU YOSHIAKI
IPC分类号： C22C47/08 , B22D19/00 , B22D19/14 , B60B3/06 , C22C47/00 , C22C47/12 , F02F3/00

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