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61. 发明专利

JPS6119750A Cupreous sintered body 失效
标题翻译： CUBUEOUS烧结体
公开(公告)号：JPS6119750A
公开(公告)日：1986-01-28
申请号：JP14126684
申请日：1984-07-07
申请人： Nippon Funmatsu Gokin Kk , Toyota Motor Corp
发明人： TAKAHASHI YOSHITAKA , OOBUCHI SADATAKA
IPC分类号： C22C9/00
摘要： PURPOSE: To contrive to improve the anti-wear property and seizure resistance of a cupreous sintered body, by specifying the composition and compounding ratio of ferrous hard particles, which are mixed with a cupreous metal powder, prior to sintering.
CONSTITUTION: The ratio of hard particles mixed with a cupreous metal powder is set to 10W70wt% and the composition thereof is constituted of 0.2W66wt% of one or more of Cr, Mo, W, V, Nb, Co, B, P, Mn and Si, 0.2W3.0wt% C and the remainder of iron and inevitable impurities. The mixture of both components is sintered to form a cupreous sintered body wherein the hard particles are dispersed in the cupreous metal matrix. Because this sintered body is excellent in both of an anti-wear property and seizure resistance, it can be used in slide parts receiving high load. The hard particles are pref. constituted of a ferrous system containing one or more of 0.5W25% Cr, 0.3W7.0% Mo, 0.5W25% W, 0.2W 6.0% V and 0.05W3% Nb on a wt. basis.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过在烧结之前确定与铜金属粉末混合的铁质硬质颗粒的组成和配合比来改善铜烧结体的耐磨损性和耐咬合性。构成：与铜金属粉末混合的硬质粒子的比例设定为10-70wt％，其组成由Cr，Mo，W，V，Nb，Co，B中的一种或多种的0.2-66wt％构成， P，Mn和Si，0.2-3.0wt％C，剩余的铁和不可避免的杂质。将两种组分的混合物烧结以形成铜烧结体，其中硬质颗粒分散在铜基质中。由于该烧结体具有优异的抗磨损性和耐咬合性，因此可以用于承受高负载的滑动部。硬颗粒是最好的。由含有0.5-25％Cr，0.3-7.0％Mo，0.5-25％W，0.2-6.0％V和0.05-3％Nb中的一种或多种的含铁体系组成。基础。

62. 发明专利

JPS6119702A Preparation of sintered metal material 失效
标题翻译：烧结金属材料的制备
公开(公告)号：JPS6119702A
公开(公告)日：1986-01-28
申请号：JP14123984
申请日：1984-07-07
申请人： Toyota Motor Corp
发明人： TAKAHASHI YOSHITAKA
IPC分类号： B22F3/02
CPC分类号： B22F2003/026
摘要： PURPOSE: To reduce the quantity to be used of a lubircant in the preparation of a sintered metal material, by thinly arranging a lubricant-containing powder to the contact part with a die wall and arranging a powder containing no lubricant to the other part while applying compression molding both powders before sintering.
CONSTITUTION: A shaft shaped main lower punch 2, a ring shaped partition punch 3 and a ring shaped auxiliary lower punch 4 are arranged to the internal lower part of a die 1 in a superposed state to demarcate two chambers 1a, 1b and an upper punch 5 is arranged above the die 1. A powder A consisting of a die steel powder, a graphite powder and a lubricant is allowed to fill the chamber 1a and the powder B consisting of the die steel powder and the graphite powder is allowed to fill the chamber 1b while the partition punch 3 is fallen to contact both powders A, B. In this state, the upper punch 5 is fallen to perform compression molding and both powders A, B are closely bonded to form a two-layered molded body 6 which is, in turn, sintered in a hydrogen gas atmosphere to prepare a sintered metal material.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了减少制备烧结金属材料时使用的润湿剂的量，通过将具有润滑剂的粉末与模具壁一起将接触部分稀薄地布置并将不含润滑剂的粉末排列到另一部分，同时施加在烧结之前对两种粉末进行压缩成型。构成：在叠置状态下，在模具1的内部下部配置有轴形的主下冲头2，环形分隔冲头3和环形辅助下冲头4，以分隔两个室1a，1b和上冲头 5.将由模具钢粉末，石墨粉末和润滑剂组成的粉末A填充到室1a中，并使由模具钢粉末和石墨粉末组成的粉末B填充到模具钢粉末在分隔冲头3下降以与粉末A，B接触的状态下，上冲头5掉下来进行压缩成型，两个粉末A，B紧密结合，形成双层成形体6，进而在氢气气氛中烧结以制备烧结金属材料。

63. 发明专利

JPS5938354A Joined cam shaft made of sintered alloy 失效
标题翻译：烧结合金加工凸轮轴
公开(公告)号：JPS5938354A
公开(公告)日：1984-03-02
申请号：JP14799182
申请日：1982-08-26
申请人： Toyota Motor Corp
发明人： SUGANUMA TETSUYA , KAZUOKA KOUJI , TAKAHASHI YOSHITAKA
IPC分类号： F01L1/04 , C22C38/00 , C22C38/12
摘要： PURPOSE: To obtain a cam shaft for an internal combustion engine made of a novel sintered alloy material at a low cost, by uniformly dispersing open pores in the sliding parts of the shaft except the main cam under specified conditions and by specifying the surface hardness of the sliding surfaces.
CONSTITUTION: Open pores each having ≤70μm size are uniformly dispersed in the sliding surfaces of the sliding parts of a cam shaft except the main cam, that is, the gear part, the fuel pump part, the journal part, etc. or the regions each having at least 0.5mm thickness under the sliding surfaces. The pores are dispersed by 0.1W20% by area at 0.05W10% effective porosity. The surface hardness Hv of the sliding surfaces is regulated to 150W350. The composition of the sliding surfaces consists of, by weight, one or more among 1.5W20% Cu, 1.0W5.0% Ni and 0.2W2.0% Mo, 0.5W3.5%C, ≤2% impurities and the balance Fe. The density of the sintered body is 6.8W7.5g/cm
3 .
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了以低成本获得由新型烧结合金材料制成的内燃机的凸轮轴，通过在特定条件下除主凸轮之外的轴的滑动部分中均匀地分散开孔，并通过规定表面硬度滑动面。构成：除了主凸轮，即齿轮部分，燃料泵部分，轴颈部分等之外，具有均匀分散在凸轮轴的滑动部分的滑动表面中的具有<70μm尺寸的开孔是均匀分散的各自具有至少0.5mm的区域。滑动面下方的厚度。孔隙以0.05-10％的有效孔隙率分散0.1-20％的面积。滑动面的表面硬度Hv调节为150-350。滑动面的组成由1.5-20％Cu，1.0-5.0％Ni和0.2-2.0％Mo，0.5-3.5％C，<= 2％杂质和余量为Fe组成的重量组成。烧结体的密度为6.8-7.5g / cm 3。

64. 发明专利

JPH1180805A PRODUCTION OF SINTERED MEMBER 失效
公开(公告)号：JPH1180805A
公开(公告)日：1999-03-26
申请号：JP25140197
申请日：1997-09-01
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA
IPC分类号： F16C7/02 , B22F3/02 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To facilitate the control of compacting process at the time of producing a sintered members easily broken and separated. SOLUTION: In the producing method of the sintered member for producing plural sintered members by compressing powder material 7 to form a green compact 10 and breaking and separating at preset separating surface after sintering the green compact, either part 10 separated in the green compact is compacted and also, the compacted density at least either one side surface side of both front and back surfaces in the pressurizing direction is set at higher than the compacted density at the center part in the pressurizing direction. Successively, the either part and the other part adjoined with this either part are integrally pressurized to the last density and compacted and after compacting, the sintering is executed and further, the either part and the other part are broken and separated at the boundary position between these parts.

65. 发明专利

JPH06212367A IRON BASE ALLOY POWDER FOR SINTERING AND WEAR RESISTANT IRON BASE SINTERED ALLOY 失效
公开(公告)号：JPH06212367A
公开(公告)日：1994-08-02
申请号：JP23845493
申请日：1993-09-24
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA , MANABE AKIRA , KANEKO TADATAKA , OKAJIMA HIROSHI
IPC分类号： C22C33/02 , C22C38/00
摘要： PURPOSE:To provide iron base alloy powder for sintering excellent in compressibility and corrosion resistance and to provide an iron base sintered alloy excellent in wear resistance. CONSTITUTION:The iron base alloy powder is formed of one contg., as alloy elements, by weight, 2 to 15% Co and 2 to 10% Mo, preferably, by >3 to 10%, and the balance Fe with inevitable impurities, and the iron base sintered alloy is obtd. by mixing the same iron base alloy powder with 0.2 to 2.1% graphite powder and a lubricant for compacting and executing compacting and sintering. Since the solid solution homogenizing degree into the matrix of allay elements is high, excellent corrosion resistance, oxidation resistance and wear resistance can be obtd. by small amounts of alloys compared to the case of the conventional method in which elementary powder is mixed. Furthermore, since Co and Mo uniformly enter into solid solution into an Fe matrix, the structure of the matrix is formed into a bainitic one, and its wear resistance is made excellent. Moreover, Pb, Cu, a Pb-Cu alloy and alloys essentially consisting of the same are infiltrated into the sintered alloy to improve its seizing resistance and wear resistance.

66. 发明专利

JPH0633184A PRODUCTION OF SINTERED ALLOY FOR VALVE SEAT EXCELLENT IN WEAR RESISTANCE 失效
公开(公告)号：JPH0633184A
公开(公告)日：1994-02-08
申请号：JP19424292
申请日：1992-07-21
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KANEKO TADATAKA , TAKAHASHI YOSHITAKA , OKAJIMA HIROSHI , MAEJIMA TAKASHI , SEKIDO REI
IPC分类号： B22F3/24 , C22C33/02 , C22C38/00 , F01L3/02
摘要： PURPOSE:To produce an iron-base sintered alloy for valve seat excellent in heat, corrosion and wear resistances and having high strength by mixing powders of carbon, Co, Fe, FeMo, etc., with a powder of iron-base alloy of specific composition at specific ratio, compacting the resulting powder mixture, performing sintering, and then applying subzero treatment to the resulting sintered compact. CONSTITUTION:As a ferrous matrix composition constituting a matrix, a powder of an iron-base alloy having a composition consisting of, by weight, 0.2-0.6% C, 0.6-1.2% Si, 4.5-5.5% Cr, 1.0-1.5% Mo, 0.8-1.2% V, and the balance Fe with inevitable impurities is used. A powder mixture is prepared by mixing >=60% of the iron-base alloy powder, 0.3-1.5% carbon powder, 5-15% Co powder, 0.2-30% of one or more kinds among the powders of Fe, Ni, and Cu, and 2.0-20% of hard grain powder of one or more kinds among FeMo, FeW, and FeCr. This powder mixture is compacted and sintered. Then the resulting sintered compact is subjected to subzero treatment and to tempering treatment, by which a martensite structure or sorbite structure is formed.

67. 发明专利

JPH03177533A MANUFACTURE OF SINTERED MATERIAL 失效
公开(公告)号：JPH03177533A
公开(公告)日：1991-08-01
申请号：JP31713989
申请日：1989-12-06
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA , MANABE AKIRA
IPC分类号： B22F3/10 , C22C33/02
摘要： PURPOSE:To easily manufacture the sintered material having excellent mechanical characteristics with good productive efficiency by adding specified amounts of graphite powder and a lubricant to the powder of an alloy having a specified compsn. constituted of Mo, Cr, Mn and Fe, subjecting it to compacting and thereafter executing sintering under specified conditions. CONSTITUTION:By weight, 0.8 to 1.4% graphite powder having 200 to 350m /g specific surface area and 4 to 10mum average grain size is added to the powder of an alloy contg. 0.3 to 1.0% Mo, 0.7 to 1.2% Cr, 0.6 to 1.0% Mn and the balance substantial Fe, to which a lubricant for compacting is furthermore added by 0.5 to 1.5%, and uniform mixing is executed. The mixed powder is compacted into a prescribed shape of >=6.6g/cm density. The green compact is sintered. At this time, the state of a sintering atmospheric gas is regulated to the one contg. a reducing gas essentially consisting of an inert gas and in which the partial pressure of the reducing gas is kept >=1000 times higher than that of water. Moreover, the sintering is executed in such a manner that the green compact is heated to 1370 to 1423K in the above atmospheric gas, is held for 1800 to 3000S and is thereafter cooled at 600 to 1500K/H rate. In this way, the sintered material of high quality can be obtd. by normal sintering at a relatively low temp.

68. 发明专利

JPS62288713A SINTERED CONNECTING ROD 失效
公开(公告)号：JPS62288713A
公开(公告)日：1987-12-15
申请号：JP12880686
申请日：1986-06-03
申请人： TOYOTA MOTOR CORP
发明人： SENDA YOSHIZUMI , TAKAHASHI YOSHITAKA
IPC分类号： F16C7/00 , B22F5/00
摘要： PURPOSE:To enable a connecting rod to be obtained with large strength and light weight further with low vibration, by forming the whole unit of the connecting rod in average density of 6.8-7.4g/cm while the big-end part of the connecting rod in density smaller than that of the other part. CONSTITUTION:A connecting rod 1 causes a problem in strength, if its averaged density of the whole unit is less than 6.8g/cm , while small decreases an effect of weight lightness if reversely the averaged density of the whole unit is larger than 7.4g/cm . In this way, the sintered connecting rod 1 sets its averaged density of the whole unit to within a range of 6.8-7.4g/cm . Next the connecting rod causes a trouble in strength, if density of its big-end part 3 is less than 6.5g/cm , while small decreases a damping effect of vibration if the density is 7.2g/cm or more. In this way, the sintered connecting rod sets the density of its big-end part 3 to a range of 6.5-7.2g/cm . Accordingly, the connecting rod is formed with large strength and light weight further with low vibration.

69. 发明专利

JPS62256903A PRODUCTION OF SINTERED MEMBER 失效
公开(公告)号：JPS62256903A
公开(公告)日：1987-11-09
申请号：JP9858586
申请日：1986-04-28
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA
IPC分类号： B22F3/16 , C22C33/02
摘要： PURPOSE:To produce a sintered member having improved tensile strength and resistance to fatigue by subjecting ferrous metallic powder to two stages of compression molding under specific conditions to increase the density thereof and sintering the molding in a nonoxidizing atmosphere. CONSTITUTION:The ferrous metallic powder is compressively molded to form the primary compression molding having 80-90% density ratio. After the primary molding is heated to 800-1,000 deg.C, the molding is again subjected to compression molding to form the secondary compression molding having >=95% density ratio. The secondary stage is preferably executed in the nonoxidizing atmosphere. The compacted compression molding is sintered by heating to 1,100-1,300 deg.C in the nonoxidizing atmosphere and the sintered body is cooled down to an ordinary temp. the sintered member having no defects in the surface part and having the high resistance to fatigue is obtd. by the above-mentioned method.

70. 发明专利

JPS62202046A MANUFACTURE OF HIGH STRENGTH SINTERED BODY 失效
公开(公告)号：JPS62202046A
公开(公告)日：1987-09-05
申请号：JP4562686
申请日：1986-03-03
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA , MANABE AKIRA
IPC分类号： C22C33/02 , B22F3/10
摘要： PURPOSE:To obtain the titled body without high temp. sintering and heat treatment, by heating a compact from mixed powder of iron alloy powder composed of a prescribed component compsn., graphite powder and lubricant in reducing atmosphere, cooling and reduction treating, then further pressing and sintering. CONSTITUTION:Iron powder contg. by weight 1-6% Ni or Co, 0.5-3% one kind or more among Cu, Mo, Cr, Mn, Si under the state in which Ni or Co is not completely alloyed with Fe, further the other elements are mixed or partially or completely alloyed with Fe, graphite powder and lubricant are mixed. Next, the compact from the mixed powder having 80-90% density ratio is heated in reducing atmosphere by a prescribed heating rate, cooled by a prescribed rate and reduction treated. Then the compact is pressed by >=1.05 pressing ratio under normal temp., then heated to 1,100-1,150 deg.C for 10-20min, then cooled to 400 deg.C by >=10 deg.C/min rate to obtain the aimed titled body.

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