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1. 发明专利

JP2008231538A Ferrous sintered compact and its manufacturing method 有权
标题翻译：强化烧结及其制造方法
公开(公告)号：JP2008231538A
公开(公告)日：2008-10-02
申请号：JP2007075286
申请日：2007-03-22
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： YANO HITOSHI , ANDO KIMIHIKO , OMURA SHINYA , MIYAKE KENBU , KONDO MIKIO , MATSUMOTO NOBUHIKO
IPC分类号： C22C38/00 , B22F1/00 , B22F3/24 , F16C7/02
CPC分类号： C22C38/04 , B22F5/12 , B22F2998/00 , B22F2998/10 , C22C33/0264 , C22C38/12 , C22C38/16 , Y10T428/12014 , B22F1/025 , B22F3/17 , B22F3/10
摘要： PROBLEM TO BE SOLVED: To provide a ferrous sintered compact by which metal fatigue starting from pores can be suppressed and material strength can be improved and also material machinability can be improved. SOLUTION: This ferrous sintered compact has a mixed structure of martensite, bainite and pearlite and a plurality of pores are formed in the inner part of the mixed structure. The martensite and the bainite comprise ≥70% of the mixed structure, and the proportion of the martensite and/or the bainite comprises ≥90% of the mixed structure forming the surface of the pores. Further, the density of the ferrous sintered compact is ≥7.4 g/cm 3 . COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供可以抑制从孔隙开始的金属疲劳并且可以提高材料强度并且还可以提高材料切削性的铁质烧结体。解决方案：该铁质烧结体具有马氏体，贝氏体和珠光体的混合结构，并且在混合结构的内部形成多个孔。马氏体和贝氏体包含混合结构的≥70％，并且马氏体和/或贝氏体的比例包括形成孔表面的混合结构的≥90％。此外，铁质烧结体的密度为≥7.4g/ cm 3。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005336608A Iron-based sintered alloy and its manufacturing method 有权
标题翻译：基于铁的烧结合金及其制造方法
公开(公告)号：JP2005336608A
公开(公告)日：2005-12-08
申请号：JP2005125089
申请日：2005-04-22
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： KONDO MIKIO , MATSUMOTO NOBUHIKO , MIYAKE KENBU , TAKEMOTO YOSHIHIDE , YANO HITOSHI
IPC分类号： B22F1/00 , B22F3/02 , B22F3/10 , C22C33/02 , C22C38/00 , C22C38/04 , C22C38/44
摘要： PROBLEM TO BE SOLVED: To provide an iron-based sintered alloy in which mechanical properties such as strength and dimensional stability before and after sintering can be secured while suppressing the use of Cu or Ni and also to provide its manufacturing method. SOLUTION: The iron-based sintered alloy is an iron-based sintered alloy obtained by sintering a powder compact prepared by compacting a raw-material powder composed mainly of Fe and has a composition consisting of, by mass, 0.1 to 1.0% C, 0.01 to 1.5% Mn, 0.02 to 3.5% (Mn+Si) and the principal balance Fe when the total is 100 mass%. It is found out that the use of proper amounts of Mn and Si can strengthen the iron-based sintered alloy and develop excellent dimensional stability. As the result, the use of Cu or Ni hitherto considered to be almost essential for the strengthening of the iron-based sintered alloy can be suppressed or eliminated and the recyclability of the iron-based sintered alloy can be improved, and further, cost reduction can be attained. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种铁基烧结合金，其中可以在抑制Cu或Ni的使用的同时确保烧结前后的强度和尺寸稳定性等机械性能，并提供其制造方法。铁基烧结合金是通过烧结由主要由Fe组成的原料粉末压实而成的粉末成形体而得到的铁基烧结合金，其组成以质量计为0.1〜1.0质量％ C，0.01〜1.5％Mn，0.02〜3.5％（Mn + Si），总平衡Fe为100质量％时为Fe。发现使用适量的Mn和Si可以加强铁基烧结合金，并发展出优异的尺寸稳定性。结果，能够抑制或消除使用迄今为止对铁基烧结合金的强化几乎必不可少的Cu或Ni，并且可以提高铁基烧结合金的可回收性，进一步降低成本可以实现。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005336609A Iron-based sintered alloy member and its manufacturing method 有权
标题翻译：基于铁的烧结合金成员及其制造方法
公开(公告)号：JP2005336609A
公开(公告)日：2005-12-08
申请号：JP2005125117
申请日：2005-04-22
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： KONDO MIKIO , MATSUMOTO NOBUHIKO , MIYAKE KENBU , TAKEMOTO YOSHIHIDE , YANO HITOSHI
IPC分类号： B22F3/02 , B22F3/10 , C22C22/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh density sintered compact having excellent dimensional stability.
SOLUTION: The iron-based sintered alloy member is an iron-based sintered alloy member obtained by sintering a powder compact prepared by compacting a raw-material powder composed mainly of Fe and has a composition consisting of, by mass, 0.01 to 2% Si, 0.1 to 0.8% C and the principal balance Fe when the total is 100 mass%, and further, the density ratio of the sintered compact, as a ratio of bulk density to theoretical density, is made to a high density of ≥96%. Even in the case where a C-containing ultrahigh density powder compact is sintered, the occurrence of blister in the sintered compact can be suppressed by the incorporation of Si and the dimensional stability of the sintered compact can be secured.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异尺寸稳定性的超高密度烧结体。铁基烧结合金构件是通过烧结由主要由Fe组成的原料粉末压实而制备的粉末压块而获得的铁基烧结合金构件，其组成由以质量计0.01〜 2％Si，0.1〜0.8％C，当总量为100质量％时的主余量为Fe，另外，作为体积密度与理论密度的比例，将烧结体的密度比设为高密度 ≥96％。即使在含有C的超高密度粉末成形体的情况下，也可以通过Si的掺入来抑制烧结体中的起泡，能够确保烧结体的尺寸稳定性。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006233331A Iron-based sintered alloy and manufacturing method therefor 有权
标题翻译：基于铁的烧结合金及其制造方法
公开(公告)号：JP2006233331A
公开(公告)日：2006-09-07
申请号：JP2006015437
申请日：2006-01-24
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： MATSUMOTO NOBUHIKO , KONDO MIKIO , MIYAKE KENBU , YANO HITOSHI , ANDO KIMIHIKO
IPC分类号： C22C38/00 , B22F3/10 , B22F3/24 , C22C33/02
摘要： PROBLEM TO BE SOLVED: To provide an iron-based sintered alloy superior in strength and toughness, and to provide a manufacturing method therefor.
SOLUTION: The iron-based sintered alloy 3 is manufactured by the steps of: pressing a raw powder 1 containing two or more iron powders 10 and 20 having different grain sizes and compositions from the others into a powder compact 2; and heating and sintering the powder compact 2 in an oxidation-preventing atmosphere. The manufacturing method downsizes remaining cavities to increase the strength at the neck part; and optimizes a balance of hardness with ductility in the neck part and the inner part of the particle to provide the iron-based sintered alloy having high strength and toughness.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供强度和韧性优异的铁基烧结合金，并提供其制造方法。解决方案：铁基烧结合金3通过以下步骤制造：将含有两种或更多种不同晶粒尺寸和组成的铁粉10和20的原料粉末1压成粉末成型体2; 在防氧化气氛中加热烧结粉体2。制造方法减小了剩余的空腔，以增加颈部的强度; 并优化其在颈部和内部的硬度与延展性的平衡，以提供具有高强度和韧性的铁基烧结合金。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2006299364A Fe-BASED SINTERED ALLOY 审中-公开
标题翻译：铁基烧结合金
公开(公告)号：JP2006299364A
公开(公告)日：2006-11-02
申请号：JP2005125202
申请日：2005-04-22
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ANDO KIMIHIKO , YANO HITOSHI
IPC分类号： C22C38/00
CPC分类号： C22C38/02 , C22C33/0271 , C22C33/0278
摘要： PROBLEM TO BE SOLVED: To further improve mechanical strength of an Fe-based sintered alloy.
SOLUTION: The Fe-based sintered alloy is manufactured through the following steps: a mixing step (S16) where Fe-Mn alloy powder, graphite powder and Fe powder are mixed using mixing equipment; a compaction step (S18) where the resultant powder mixture is pressurized at prescribed pressure and compacted; and a sintering step (S20) where the resultant green compact is sintered in a sintering furnace at a prescribed temperature for a prescribed time. The Fe-Mn alloy powder contains 2 to 30 mass% Mn. In particular, in the mixing step (S16), 5 to 50 mass% Fe-Mn alloy powder, 0.2 to 2 mass% graphite powder and Fe powder as the balance are mixed using mixing equipment.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了进一步提高Fe基烧结合金的机械强度。解决方案：通过以下步骤制造Fe基烧结合金：混合步骤（S16），其中使用混合设备将Fe-Mn合金粉末，石墨粉末和Fe粉末混合; 压实步骤（S18），其中所得粉末混合物在规定压力下加压并压实; 和烧结步骤（S20），其中所得生坯在规定温度下在烧结炉中烧结规定时间。 Fe-Mn合金粉末含有2〜30质量％的Mn。特别是在混合工序（S16）中，使用混合设备混合5〜50质量％的Fe-Mn合金粉末，0.2〜2质量％的石墨粉末和作为余量的Fe粉末。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2004190055A Aluminum surface nitriding method 审中-公开
公开(公告)号：JP2004190055A
公开(公告)日：2004-07-08
申请号：JP2002356168
申请日：2002-12-09
申请人： Kawasaki Heavy Ind Ltd , Toyota Gakuen , Toyota Motor Corp , トヨタ自動車株式会社 , 学校法人トヨタ学園 , 川崎重工業株式会社
发明人： TSUNEKAWA YOSHIKI , HARA TAMIO , SHOYAMA HIROAKI , BABA AKIHIRO , YANO HITOSHI , KAJIKAWA YOSHIAKI , KASA YOSHITOKU , SUEMITSU TAKESHI , MORI TAKASHI
IPC分类号： C23C8/36 , C23C8/02 , C23C14/00 , C23C14/06 , C23C14/34
摘要： PROBLEM TO BE SOLVED: To provide an aluminum nitriding method for removing an oxide film on a surface of a base aluminum member and depositing a thick aluminum nitride layer by using nitrogen plasma with high concentration.
SOLUTION: An aluminum containing metal 5 is set on a sample stand 34 in a reaction chamber by using an electron beam excitation plasma (EBEP) apparatus to generate plasma in the reaction chamber 3 by electron beams of low voltage and large current, the reaction chamber is evacuated, hydrogen gas is introduced therein, and hydrogen plasma is generated by accelerated electron beams to clean a surface of the metal. Next, substitution is performed to reaction gas containing nitrogen gas to generate reaction plasma by accelerated electron beams. A nitrided aluminum film is deposited on the surface of the metal by generating nitriding reaction while performing sputtering by applying the bias voltage to the metal.
COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2003313649A Nitriding method and sintered member 审中-公开
标题翻译：硝化方法和烧结成员
公开(公告)号：JP2003313649A
公开(公告)日：2003-11-06
申请号：JP2002122110
申请日：2002-04-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YANO HITOSHI , OKAJIMA HIROSHI
IPC分类号： B22F3/24 , B22F5/00 , C22C33/02 , C22C38/00 , C23C8/38
摘要： PROBLEM TO BE SOLVED: To provide a nitriding method capable of acquiring a sintered member having proper contact pressure fatigue strength, and to provide the sintered member.
SOLUTION: In the nitriding method in which glow discharge is generated within a gas atmosphere including nitrogen by employing a sintered material as a cathode, the nitriding method of the invention is characterized in that the gas partial pressure of nitrogen-including gas, which forms the gas atmosphere including nitrogen, is equal to or less than 150 Pa. The sintered member of the invention is manufactured by applying the nitriding method to the sintered material. According to the nitriding method of the invention, the thickness of a compound layer can be reduced, and a sintered member with a proper contact pressure fatigue strength can be manufactured without applying processing such as void-sealing or pressing to a sintered material.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够获得具有适当接触压力疲劳强度的烧结构件的氮化方法，并提供烧结构件。解决方案在本发明的氮化方法中，通过使用烧结材料作为阴极，在包含氮的气体气氛中产生辉光放电的氮化方法中，其特征在于，含氮气体的气体分压，形成包含氮气的气体气氛等于或小于150Pa。本发明的烧结体通过将氮化方法施加到烧结材料而制造。根据本发明的氮化方法，可以减少化合物层的厚度，并且可以在不对烧结材料进行空隙密封或压制等处理的情况下，制造具有适当的接触压力疲劳强度的烧结体。版权所有（C）2004，JPO

8. 发明专利

JP2007315240A Piston of internal combustion engine 有权
标题翻译：内燃机活塞
公开(公告)号：JP2007315240A
公开(公告)日：2007-12-06
申请号：JP2006144197
申请日：2006-05-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ANDO KIMIHIKO , YANO HITOSHI
IPC分类号： F02F3/26 , C22C22/00 , C22C38/00 , F02F3/04
CPC分类号： F02F3/285 , B22F5/008 , B22F2999/00 , C22C33/0278 , B22F3/1007 , B22F2201/02
摘要： PROBLEM TO BE SOLVED: To provide a piston of an internal combustion engine having a low heat conductive member having a small heat conductivity and a thermal expansion characteristic similar to an aluminum alloy which is used for the piston as a base material.
SOLUTION: In this piston of an internal combustion engine, the low heat conductive member is arranged at the top of the piston. The low heat conductive member is formed of an alloy including Fe and Mn. The low heat conductive member is desirably be formed of a sintered body composed of Mn of 10 to 60 mass%, C of 2 mass% or less, and the remaining having Fe and unavoidable impurities.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的活塞，该内燃机具有导热性低的热传导性和与活塞用作基材的铝合金类似的热膨胀特性。解决方案：在内燃机的该活塞中，低导热构件设置在活塞的顶部。低导热构件由包含Fe和Mn的合金形成。低导热构件理想地由由10〜60质量％的Mn构成的烧结体形成，C为2质量％以下，剩余部分为Fe和不可避免的杂质。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2006181606A Method and apparatus for manufacturing connecting rod 审中-公开
标题翻译：制造连接方法和装置
公开(公告)号：JP2006181606A
公开(公告)日：2006-07-13
申请号：JP2004377919
申请日：2004-12-27
申请人： Aichi Steel Works Ltd , Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社 , 新日本製鐵株式会社
发明人： ERIGUCHI TADASHI , MORI MOTOHIDE , KINO KINSEI , YANO HITOSHI , SASANUMA HIDEKI , TAKADA HIROTADA , KAMO SATOSHI
IPC分类号： B21K1/14 , B21J1/06 , F16C7/02
摘要： PROBLEM TO BE SOLVED: To provide a method and apparatus for manufacturing a connecting rod with which the strength in a columnar part is improved by performing a surface hardening treatment so as to connect only with the columnar part and the state easily cut-worked to a large end part and a small end part can be secured without applying the surface hardening treatment, and the unevenness of the strength at the large end part and the strength at the small end part can suitably be restrained in this surface hardening treatment.
SOLUTION: The method for manufacturing the connecting rod 10, is provided with a process, in which cooling water is injected to the columnar part 11 while blowing the air from the whole peripheries to two positions of a boundary position 110 between the columnar part 11 and the small end part 12, and a boundary position 11b between the columnar part 11 and an expanded diameter part 14.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于制造连杆的方法和装置，通过进行表面硬化处理以便仅与柱状部分连接并且容易切割的状态，提高了柱状部分的强度，加工到大的端部，并且可以在不进行表面硬化处理的情况下固定小端部，并且可以在该表面硬化处理中适当地抑制大端部的强度的不均匀性和小端部的强度。解决方案：连接杆10的制造方法具有以下过程，其中将冷却水从整个周边喷射到柱状部分11，同时将空气吹入圆柱体之间的边界位置110的两个位置部分11和小端部12以及柱形部分11和扩径部分14之间的边界位置11b。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2008247339A Tie rod and its manufacturing method 有权
标题翻译： TIE ROD及其制造方法
公开(公告)号：JP2008247339A
公开(公告)日：2008-10-16
申请号：JP2007094463
申请日：2007-03-30
申请人： Nippon Steel Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 新日本製鐵株式会社
发明人： YANO HITOSHI , MORI MOTOHIDE , SAKUMA HITOSHI , IMAI KAZUHIKO , OKONOGI MAKOTO , TODA MASAHIRO , TAKADA HIROTADA , TERAMOTO SHINYA
IPC分类号： B62D7/08
摘要： PROBLEM TO BE SOLVED: To provide a tie rod capable of smoothly transmitting the steering operation of a driver to a wheel and enhancing a steering feeling of the driver.
SOLUTION: In the tie rod 1 provided with at least a shaft 10 and mounting parts 20, 30 at both ends of the shaft 10, the shaft 10 has a small cross section area 13 getting a smaller cross section area than respective cross section areas of both ends 11, 12 of the shaft, and a ratio of the cross section area Dmin of the small cross section area 13 to the respective cross section areas D1, D2 of both ends 11, 12 is 0.8 or smaller.
COPYRIGHT: (C)2009,JPO&INPIT

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