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1. 发明专利

JP2011226539A Retainer 有权
标题翻译： RETAINER
公开(公告)号：JP2011226539A
公开(公告)日：2011-11-10
申请号：JP2010095864
申请日：2010-04-19
申请人： Japan Steel Works Ltd:The , Ntn Corp , Ntn株式会社 , 株式会社日本製鋼所
发明人： HAYAKAWA YASUTAKE , SHIMAZU EIICHIRO , OKUNO TAKAHIRO , OSHITA JUNICHI , SAKAMOTO RYUICHI
IPC分类号： F16C33/44 , C22C23/02 , F16C33/56
摘要： PROBLEM TO BE SOLVED: To provide a lightweight and strong magnesium alloy retainer.SOLUTION: The retainer 14 comprises a magnesium alloy such as AZ91D and is molded by injection molding. A converging region including a void formed by converging the magnesium alloy in the injection molding flows out of the retainer 14. When the cross-section of the retainer 14 is observed, an α phase having a particle diameter of 20 μm or more constitutes less than 15% in the magnesium alloy constructing the retainer 14.
摘要翻译：要解决的问题：提供一种轻质坚固的镁合金保持器。解决方案：保持器14包括诸如AZ91D的镁合金，并通过注模成型。包括通过在注射成型中会聚镁合金而形成的空隙的会聚区域从保持器14流出。当观察到保持器14的截面时，粒径为20μm以上的α相构成小于 15％的镁合金构成保持器14.版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2015010272A 焼結機械部品及びその製造方法有权
标题翻译：烧结机及其生产方法
公开(公告)号：JP2015010272A
公开(公告)日：2015-01-19
申请号：JP2013139080
申请日：2013-07-02
申请人： Ntn株式会社 , Ntn Corp , Ntn株式会社
发明人： OKUNO TAKAHIRO , YASHIRO NAOKI , OHIRA AKINARI
IPC分类号： C22C38/00 , B22F1/00 , B22F5/08 , C22C33/02 , F16H53/02 , F16H55/06
CPC分类号： F16H55/06 , B22F1/007 , B22F3/16 , B22F5/08 , B22F2003/026 , B22F2301/35 , B22F2302/40 , B22F2304/10 , B22F2998/10 , C22C33/0264 , C22C38/00 , C22C38/08 , C22C38/12 , F16H53/025 , F16H55/17
摘要：【課題】鉄系焼結金属からなる機械部品の密度を、低コストな方法で、7.5g/cm3以上まで高める。【解決手段】拡散合金鋼粉100wt%に対して平均粒子径が8μm以下の黒鉛粉末を0.05〜0.35wt%混合した混合粉末、あるいは、完全合金鋼粉100wt%に対して平均粒子径が8μm以下の黒鉛粉末を0.15〜0.35wt%混合した混合粉末を用いて、密度が7.5g/cm3以上の焼結体を形成する。【選択図】なし
摘要翻译：要解决的问题：通过低成本的方法将由铁基烧结金属组成的机器部件的密度增加到7.5g / cm 3以上。解决方案：形成密度为7.5g / cm 3或更高的烧结体通过使用由100重量％的与0.05-0.35重量％平均粒径为8μm以下的石墨粉末混合的扩散合金钢粉末或由100重量％完全合金钢功率与0.15-0.35重量％的平均粒径为8μm或更小的石墨粉混合。

3. 发明专利

JP2013256688A Sintered gear, and method for producing the same 有权
标题翻译：烧结齿轮及其制造方法
公开(公告)号：JP2013256688A
公开(公告)日：2013-12-26
申请号：JP2012132820
申请日：2012-06-12
申请人： Ntn Corp , Ntn株式会社
发明人： OKUNO TAKAHIRO , SHIMAZU EIICHIRO
IPC分类号： B22F5/08 , B22F3/24 , F16H55/06
摘要： PROBLEM TO BE SOLVED: To provide a sintered gear having high shape precision and exhibiting high fatigue characteristics, and a method for producing the sintered gear.SOLUTION: A sintered gear made of a metal sintered body includes: a dedendum region 16; an engagement region 17 located more on the side of a tooth crest 15 from the dedendum region 16; and an addendum region 18 located more on the side of the tooth crest 15 from the engagement region 17. In the dedendum region 16, a high density dedendum region 19 having high density than those of the engagement region 17 and the addendum region 18 are formed so as to include the surface 16S of the dedendum region 16 and a critical section 20 obtained by a Hofer's 30° tangent method, and a surface hardened layer 21 is formed on the surface 19S of the high density dedendum region 19.
摘要翻译：要解决的问题：提供一种具有高形状精度和显示出高疲劳特性的烧结齿轮及其制造方法。本发明提供一种烧结齿轮，包括：齿根区域16; 从齿根区域16位于齿顶15侧的接合区域17; 以及从接合区域17更靠在齿顶15侧的齿顶区域18.在齿根区域16中，形成了具有比接合区域17和齿顶区域18高的密度的高密度齿根区域19 以包括齿根区域16的表面16S和通过霍夫30°切线方法获得的临界部分20，并且在高密度子公司区域19的表面19S上形成表面硬化层21。

4. 发明专利

JP2014125646A Method of producing powder for manufacture of sintered body and method of producing sintered part 审中-公开
标题翻译：生产烧结粉末的粉末的方法和生产烧结部件的方法
公开(公告)号：JP2014125646A
公开(公告)日：2014-07-07
申请号：JP2012281151
申请日：2012-12-25
申请人： Ntn Corp , Ntn株式会社
发明人： OKUNO TAKAHIRO , KATAYANAGI AKIRA , OHIRA AKINARI , YASHIRO NAOKI
IPC分类号： B22F1/02 , B22F3/02 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To form a lubrication film coating the surface of a base powder with high accuracy at low costs.SOLUTION: In a method of producing a powder 10 for manufacture of a sintered body consisting of a metal powder 11, as a base powder B, surface-coated with a lubrication film 12, a solid lubricant 13 is molten with frictional heat generated in mixing the metal powder 11 with the solid lubricant 13, and a solution 14 produced in the melting is coated to the surface of the metal powder 11. The mixing of the metal powder 11 and the solid lubricant 13 is carried out in a medialess condition.
摘要翻译：要解决的问题：以低成本形成以高精度涂覆基底粉末的表面的润滑膜。解决方案：在制造由金属粉末11组成的烧结体的粉末10的方法中，作为基底用润滑膜12表面涂覆的粉末B，在将金属粉末11与固体润滑剂13混合时产生的摩擦热熔化，固体润滑剂13熔化，并将熔化中生成的溶液14涂覆到金属的表面金属粉末11和固体润滑剂13的混合是在无中间状态下进行的。

5. 发明专利

JP2013189658A Machine structural component and method of manufacturing the same 审中-公开
标题翻译：机械结构部件及其制造方法
公开(公告)号：JP2013189658A
公开(公告)日：2013-09-26
申请号：JP2012054643
申请日：2012-03-12
申请人： Ntn Corp , Ntn株式会社
发明人： OKUNO TAKAHIRO , SHIMAZU EIICHIRO , KATAYANAGI AKIRA
IPC分类号： B22F5/08 , B22F3/02 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide a machine structural component capable of achieving improvement of static strength, toughness and fatigue strength while suppressing decline of dimensional accuracy, and to provide a method of manufacturing the same.SOLUTION: A gear as a machine structural component is composed of a metal sintered compact, and includes: a base area 13; and a high density area 14 formed to include a maximum stress position 17 which is a position to which the maximum tensile stress or the maximum shear stress is added and to include a surface 15, and having a porosity smaller than that of the base area 13. In an area including the surface 15, a surface hardened layer 16 is formed by executing hardening treatment.
摘要翻译：要解决的问题：提供能够在抑制尺寸精度下降的同时提高静态强度，韧性和疲劳强度的机械结构部件，并提供其制造方法。解决方案：作为机械结构部件的齿轮是由金属烧结体组成，并且包括：基部区域13; 以及形成为包括最大应力位置17的高密度区域14，该最大应力位置17是最大拉伸应力或最大剪切应力所添加的位置，并且包括表面15，并且具有小于基部区域13的孔隙率在包括表面15的区域中，通过进行硬化处理形成表面硬化层16。

6. 发明专利

JP2013159795A Method for manufacturing sintered bearing 有权
标题翻译：烧结轴承的制造方法
公开(公告)号：JP2013159795A
公开(公告)日：2013-08-19
申请号：JP2012020855
申请日：2012-02-02
申请人： Ntn Corp , Ntn株式会社
发明人： ITO YASUTAKA , SHIMIZU SUNAO , SHIMAZU EIICHIRO , OKUNO TAKAHIRO
IPC分类号： B22F5/00 , B22F1/00 , B22F3/02 , B22F3/10 , B22F7/00 , B22F7/06 , C22C38/00 , C22C38/16 , F16C33/10 , F16C33/12 , F16C33/14
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered bearing that can not only reduce costs of the sintered bearing by using flat copper powder to reduce the amount of copper used but also can achieve stable bearing performance by suppressing dispersion of containing amounts of the flat copper powder in mass production.SOLUTION: A mold is filled with a raw material powder prepared by mixing iron powder, copper powder containing flat copper powder, low-melting-point metallic powder, and solid lubricant powder, and a green compact formed by the mold is sintered to manufacture a sintered bearing. The solid lubricant powder is made into a foil state, and the raw material powder is obtained by mixing the flat copper powder and the solid lubricant powder in the primary mixture and by adding and mixing the iron powder and the low-melting-point metallic powder in the subsequent secondary mixture.
摘要翻译：要解决的问题：提供一种制造烧结轴承的方法，其不仅可以通过使用扁平铜粉来降低烧结轴承的成本以减少所使用的铜的量，而且还可以通过抑制含量的分散来实现稳定的轴承性能扁平铜粉在批量生产中。一种模具填充有通过混合铁粉，含有扁铜粉末的铜粉，低熔点金属粉末和固体润滑剂粉末制备的原料粉末和形成的生坯通过模具烧结制造烧结轴承。将固体润滑剂粉末制成箔状态，并且通过将初始混合物中的扁平铜粉末和固体润滑剂粉末混合并通过将铁粉末和低熔点金属粉末加入并混合而获得原料粉末在随后的二次混合物中。

7. 发明专利

JP2013079438A Sintered bearing and method for manufacturing the same 有权
标题翻译：烧结轴承及其制造方法
公开(公告)号：JP2013079438A
公开(公告)日：2013-05-02
申请号：JP2012018713
申请日：2012-01-31
申请人： Ntn Corp , Ntn株式会社
发明人： ITO YASUTAKA , SHIMIZU SUNAO , SHIMAZU EIICHIRO , OKUNO TAKAHIRO
IPC分类号： B22F7/00 , B22F1/00 , B22F1/02 , C22C38/00 , F16C33/12 , F16C33/14
摘要： PROBLEM TO BE SOLVED: To provide a sintered bearing capable of reducing the amount of copper used and lowering production cost, while exhibiting excellent initial running-in characteristics and quietness as well as high durability.SOLUTION: A sintered bearing 1 contains an iron structure and copper structure both being bonded to each other through a low-melting-point metal. A portion or all of the copper structure is formed with flat copper powder, and ferrite phase αFe is used as the iron structure. The bearing 1 is provided with: a base part S2 where the copper content is made uniform; and a surface layer S1 that covers a surface of the base part S2 and whose copper content is larger than that of the base part S2.
摘要翻译：要解决的问题：提供一种能够减少所用铜量并降低生产成本的烧结轴承，同时具有优异的初始运行特性和安静性以及高耐久性。解决方案：烧结轴承1含有通过低熔点金属彼此结合的铁结构和铜结构。铜结构的一部分或全部由平坦的铜粉末形成，铁素体αFe用作铁结构。轴承1设置有：铜含量均匀的基部S2; 以及覆盖基部S2的表面并且铜含量大于基部S2的表面的表面层S1。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2011094789A Power-transmitting part 有权
标题翻译：发电部分
公开(公告)号：JP2011094789A
公开(公告)日：2011-05-12
申请号：JP2010196581
申请日：2010-09-02
申请人： Ntn Corp , Ntn株式会社
发明人： OKUNO TAKAHIRO , SHIMAZU EIICHIRO
IPC分类号： F16H55/06 , B22F5/00 , B22F5/08 , F16H53/02
CPC分类号： C21D9/32 , B22F5/08 , B22F2998/10 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/44 , F16H55/06 , Y10T74/1987 , Y10T74/2101 , Y10T428/24273 , B22F3/02 , B22F3/10 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide a high strength and high rigidity power transmitting part by achieving high density of sintered material by powder press sintering method. SOLUTION: A gear 10 which is a power transmitting component comprises a sintered material which is produced by granulating a raw material powder mainly composed of iron, press-molding the resulting granules, and burning the press-molded product. Relative density of the sintered material is not less than 85%, destruction strength is not less than 1,500 N/mm2, powder grain size (D50) of the raw material powder is not greater than 20 μm, powder grain size (D50) of the granules is not greater than 500 μm, and the pressure press-molding the granules is 400 MPa or greater and 800 MPa or less. Quenching treatment is applied on the sintered material and its hardness is set not less than HRC 50 in Rockwell C-scale, and then tempering treatment is applied on the same and its hardness is set not less than HRC 50 in Rockwell C-scale. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过粉末压制烧结法实现高密度烧结材料，提供高强度和高刚性的动力传递部件。解决方案：作为动力传递部件的齿轮10包括烧结材料，该烧结材料通过将主要由铁组成的原料粉末进行造粒，对所得颗粒进行加压成型，并对该压制成型品进行燃烧而制造。烧结材料的相对密度不低于85％，破坏强度不小于1,500N / mm2，原料粉末的粉末粒径（D50）不大于20μm，粉末粒度（D50）为颗粒不大于500μm，压制成型颗粒的压力为400MPa以上且800MPa以下。对烧结材料进行淬火处理，将其硬度设定为不低于HRC 50的洛氏C级，然后对其进行回火处理，其硬度设定为不小于洛氏C级的HRC 50。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2013241637A Green compact, mechanical component, and method for producing the green compact 审中-公开
标题翻译：绿色紧凑，机械部件和生产绿色紧凑件的方法
公开(公告)号：JP2013241637A
公开(公告)日：2013-12-05
申请号：JP2012114579
申请日：2012-05-18
申请人： Ntn Corp , Ntn株式会社
发明人： YASHIRO NAOKI , OKUNO TAKAHIRO , SHIMAZU EIICHIRO , OHIRA AKINARI , ITO YASUTAKA
IPC分类号： B22F3/02 , B22F3/035 , B22F7/06
摘要： PROBLEM TO BE SOLVED: To provide a green compact which can be made into a highly-functional mechanical component, and to provide a method capable of easily and inexpensively producing the same.SOLUTION: In a method for producing a green compact 1 having a base portion 2 and a surface layer portion 3 covering the surface of the base portion 2, when a raw material powder including a base material powder 4 and a beaten powder 5 is compressed by use of a mold, prior to the filling of the base material powder 4 into a cavity of the mold, the beaten powder 5 is adhered to a molding surface of the mold to cover the molding surface with the beaten powder 5, and the raw material powder is then compressed.
摘要翻译：要解决的问题：提供可制成高功能机械部件的生坯，并提供能够容易且廉价地制造其的方法。解决方案：在具有基材的生坯的制造方法中，部分2和覆盖基部2的表面的表面层部3，在填充基材粉末之前，当使用模具压缩包含基材粉末4和破碎粉末5的原料粉末时 4进入模具的空腔中，将被粉碎的粉末5粘附到模具的模制表面以用打浆粉末5覆盖模制表面，然后将原料粉末压缩。

10. 发明专利

JP2013170297A Composition for compacting powder metal, metal sintered compact and power transmission component 审中-公开
标题翻译：用于压铸粉末金属，金属烧结和电力传输部件的组合物
公开(公告)号：JP2013170297A
公开(公告)日：2013-09-02
申请号：JP2012034991
申请日：2012-02-21
申请人： Ntn Corp , Ntn株式会社
发明人： OKUNO TAKAHIRO , SHIMAZU EIICHIRO
IPC分类号： B22F1/02 , B22F1/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a composition for compacting powder metal capable of improving the density of a green compact without using special apparatus, a metal sintered compact, and a power transmission component.SOLUTION: A composition 1 for compacting powder metal includes: powder 2 made of an iron element-containing material; an organic matter 3 covering at least a part of the powder; and a complex 4 formed between the powder 2 and the organic matter 3. The organic matter 3, e.g., being flavonoids having a plurality of OH groups. The flavonoids, e.g., being catechins.
摘要翻译：要解决的问题：提供一种用于压实粉末金属的组合物，其不需要使用专门的设备，金属烧结体和动力传递部件，可以提高生坯的密度。解决方案：用于压实粉末金属的组合物1包括：粉末 2由含铁元素的材料制成; 覆盖至少一部分粉末的有机物质3; 以及在粉末2和有机物质3之间形成的络合物4.有机物质3，例如具有多个OH基团的类黄酮。类黄酮，例如儿茶素。

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