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    • 3. 发明专利
    • Carburized sintered body, and manufacturing method thereof
    • 加热烧结体及其制造方法
    • JP2012255183A
    • 2012-12-27
    • JP2011128065
    • 2011-06-08
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所Toyota Motor Corpトヨタ自動車株式会社
    • MIYAKE KENBUKONDO MIKIOMATSUMOTO NOBUHIKOANDO KIMIHIKO
    • C22C33/02B22F1/00B22F3/10C21D9/00C21D9/32C22C22/00C22C38/00C22C38/38
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing a carburized sintered body for manufacturing the carburized sintered body of high strength efficiently.SOLUTION: The method of manufacturing the carburized sintered body includes: a molding step of molding raw material powder by pressure to obtain a molded body, the raw material powder obtained by adding Fe-Mn-Si-C powder that consists of an alloy or compound of Fe, Mn, and Si and C to iron alloy powder; and a carburizing step of heating the molded body in a carburizing atmosphere with a carburization temperature of 850-980°C to obtain the carburized sintered body that is a sintered body with a carburized layer formed near a surface thereof. The Fe-Mn-Si-C powder reduces and activates the particle surface of the iron alloy powder, and thereby a so-called sintering neck is formed between the particles of the iron alloy powder during the carburizing step. Therefore, both sintering of the molded body and the formation of the carburized layer are performed in the carburizing step without a sintering step. Thus, according to this manufacturing method, the carburized sintered body of high strength can be efficiently manufactured at low cost.
    • 要解决的问题:提供一种制造渗碳烧结体的方法,用于有效地制造高强度的渗碳烧结体。 解决方案:渗碳烧结体的制造方法包括:通过压力成型原料粉末以获得成型体的成型步骤,通过添加Fe-Mn-Si-C粉末而获得的原料粉末 Fe,Mn,Si和C与Fe合金粉末的合金或化合物; 以及在渗碳温度为850-980℃的渗碳气氛中加热成型体的渗碳工序,得到在其表面附近形成有渗碳层的烧结体的渗碳烧结体。 Fe-Mn-Si-C粉末减少并激活铁合金粉末的颗粒表面,从而在渗碳步骤期间在铁合金粉末的颗粒之间形成所谓的烧结颈部。 因此,在不进行烧结工序的渗碳工序中进行成型体的烧结和渗碳层的形成。 因此,根据该制造方法,可以以低成本有效地制造高强度的渗碳烧结体。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Piston of internal combustion engine and manufacturing method for piston
    • 内燃机活塞和活塞制造方法
    • JP2009264236A
    • 2009-11-12
    • JP2008114591
    • 2008-04-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • ANDO KIMIHIKO
    • F02F3/00F02F3/26F16J1/01
    • F02F3/12C21D7/06F02F3/02Y10T29/49249
    • PROBLEM TO BE SOLVED: To provide a piston for an internal combustion engine and a manufacturing method for the engine, capable of suppressing the fuel oozing at the piston top opposite to the surface of the combustion chamber. SOLUTION: The piston 10 of the internal combustion engine includes a piston body 12 and a member 14 having a low thermal conductivity consisting of a sintered body arranged at the top of the piston body 12 opposite to the combustion chamber, wherein the porosity of the facial layer of the member 14 on its combustion chamber surface 14a side opposite to the combustion chamber is smaller than the internal porosity of inside the member 14 deeper than the facial layer. The combustion chamber surface 14a of the member 14 is subjected to shot peening. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于内燃机的活塞和用于发动机的制造方法,其能够抑制在与燃烧室的表面相对的活塞顶部渗出的燃料。 解决方案:内燃机的活塞10包括活塞体12和具有低导热性的构件14,其由布置在与燃烧室相对的活塞体12顶部的烧结体组成,其中孔隙率 构件14的与燃烧室相对的燃烧室表面14a侧的面层的面积小于比面层更深的部件14内部的内部孔隙。 对构件14的燃烧室表面14a进行喷丸处理。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Method of manufacturing piston for internal combustion engine
    • 制造内燃机活塞的方法
    • JP2007332930A
    • 2007-12-27
    • JP2006168691
    • 2006-06-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • ANDO KIMIHIKO
    • F02F3/00F02F3/26F16J1/01
    • PROBLEM TO BE SOLVED: To provide a piston top surface without substantially a clearance, while restraining a cost increase and reduction in productivity, in casting for insertingly casing a functional plate appearing on the piston top surface.
      SOLUTION: The functional plate 2 is arranged on a baseplate 4 smaller than the functional plate 2 arranged on a top surface molding mold surface 3b of a casting mold 3. Molten metal 5 of a piston material is injected into the casting mold 3. A top part 6b on the casing product top surface 6a side contacting with the top surface molding mold surface 3b, is composed of the baseplate 4 and a piston material part 61 for enclosing the baseplate 4. A casting product 6 of insertingly casing the baseplate 4 and the functional plate 2 is provided by forming a clearance 62 between the baseplate 4 and the piston material part 61 in a casting product surface 6a. The baseplate 4 and the piston material part 61 are removed so that the clearance 62 disappears and the functional plate 2 appears, by processing the top part 6b of the casing product 6.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了在出现在活塞顶表面上的功能板插入式铸造的铸造中提供活塞顶面而基本上没有间隙,同时抑制成本增加和生产率的降低。

      解决方案:功能板2布置在比设置在铸模3的顶表面成型模具表面3b上的功能板2更小的基板4上。将活塞材料的熔融金属5注入铸模3中 在与顶面成型模具表面3b接触的套筒产品上表面6a侧的顶部6b由基板4和用于封闭基板4的活塞材料部分61组成。铸造产品6将基板 并且功能板2通过在铸造产品表面6a中在基板4和活塞材料部分61之间形成间隙62来提供。 通过加工外壳产品6的顶部6b,移除基板4和活塞材料部分61,使得间隙62消失并且功能板2出现。(C)2008,JPO&INPIT

    • 8. 发明专利
    • Fe-BASED SINTERED ALLOY
    • 铁基烧结合金
    • JP2006299364A
    • 2006-11-02
    • JP2005125202
    • 2005-04-22
    • Toyota Motor Corpトヨタ自動車株式会社
    • ANDO KIMIHIKOYANO HITOSHI
    • C22C38/00
    • C22C38/02C22C33/0271C22C33/0278
    • 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
    • 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
    • 9. 发明专利
    • Composite material, and method for manufacturing the same
    • 复合材料及其制造方法
    • JP2006218493A
    • 2006-08-24
    • JP2005032891
    • 2005-02-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • ANDO KIMIHIKO
    • B22D19/00F02B23/10F02F1/24F02F3/10F02F3/14
    • Y02T10/125
    • PROBLEM TO BE SOLVED: To provide a composite material which can secure both of the adhesive strength and the heat insulating property between a sintered member made of titanium or titanium alloys and a cast member made of aluminum alloys at the same time, and further to provide a method for manufacturing the composite material.
      SOLUTION: The composite material 1 is composed such that at least a part of a sintered member 10 made of titanium or the titanium alloys is covered with a cast member 20 made of the aluminum alloys. The composite material 1 has an oxide film 12 having a film thickness of 10 to 200 μm formed on at least a part of the interface of the sintered member 10 covered by the aluminum alloy 20.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种复合材料,其可以同时确保由钛或钛合金制成的烧结构件和由铝合金制成的铸造构件之间的粘合强度和隔热性,以及 进一步提供一种制造复合材料的方法。 解决方案:复合材料1构成为使得由钛或钛合金制成的烧结构件10的至少一部分被由铝合金制成的浇铸构件20覆盖。 复合材料1具有在由铝合金20覆盖的烧结构件10的界面的至少一部分上形成的膜厚度为10〜200μm的氧化膜12。(C)2006,JPO&NCIPI