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1. 发明专利

JP2013087320A Nitrided component and method for producing the same 有权
标题翻译：硝基组分及其生产方法
公开(公告)号：JP2013087320A
公开(公告)日：2013-05-13
申请号：JP2011228140
申请日：2011-10-17
申请人： Aichi Steel Works Ltd , 愛知製鋼株式会社
发明人： ITO YUKIO , KOZUKA TAKUMI
IPC分类号： C23C8/26 , C21D1/06 , C21D3/04 , C21D9/00 , C21D9/02 , C21D9/30 , C21D9/32 , C22C38/00 , C22C38/24 , C22C38/54 , C23C8/02
摘要： PROBLEM TO BE SOLVED: To provide a nitrided component capable of being improved in fatigue characteristics without applying an expensive shot peening, and a method for producing the same.SOLUTION: The nitrided component includes a surface hardened layer including a decarburized layer and a nitrided layer. Chemical composition inside the nitrided component includes, by mass%, C: 0.15% or more and less than 0.5%; one or more elements selected from a group of Cr: 6.0% or less, V: 2.5% or less, Mo: 3.0% or less, and Al: 1.5% or less; N: 0.03% or less. A nitriding factor N1 expressed by (0.08×[%Cr]+0.29×[%V]+0.15×[%Mo]+0.65×[%Al])/[%C] is 1.0 or more. At the surface hardened layer, a decarburization rate expressed by (C-C)/C is 0.30 or more, wherein Cdenotes carbon concentration of the surface, and a surface nitrogen concentration factor Ns expressed by N2/(C-C+0.2) is 1.0 or more, wherein N2 denotes nitrogen concentration of the surface.
摘要翻译：解决的问题：提供能够在不施加昂贵的喷丸硬化的情况下能够改善疲劳特性的氮化组分及其制备方法。解决方案：氮化组分包括包括脱碳层和氮化层的表面硬化层。氮化成分中的化学成分以质量％计含有C：0.15％以上且小于0.5％选自Cr：6.0％以下，V：2.5％以下，Mo：3.0％以下，Al：1.5％以下的一种以上的元素; N：0.03％以下。由（0.08×[％Cr] + 0.29×[％V] + 0.15×[％Mo] + 0.65×[％Al]）/ [％C]表示的氮化因子N1为1.0以上。在表面硬化层，由（CC 1 / SB）表示的脱碳率为0.30以上，其中，C 1 表面的碳浓度和由N2 /（CC 1 +0.2）表示的表面氮浓度因子Ns为1.0以上，其中，N2表示表面的氮浓度。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2010167492A Component for machine structure and method for producing the same 有权
标题翻译：机械结构部件及其制造方法
公开(公告)号：JP2010167492A
公开(公告)日：2010-08-05
申请号：JP2009244295
申请日：2009-10-23
申请人： Aichi Steel Works Ltd , 愛知製鋼株式会社
发明人： ITO YUKIO , NISHIKAWA TOMOAKI , KOZUKA TAKUMI
IPC分类号： B23K35/30 , B23K9/00 , B23K9/04 , B23K9/167 , B23K10/02 , B23K26/34
摘要： PROBLEM TO BE SOLVED: To provide a component for a machine structure which has rigidity effectively increased by a simple method, and to provide a method for producing the same. SOLUTION: The component for a machine structure comprises: a base material 2 composed of a steel material; and an overlay weld zone 3 provided with one or a plurality of overlay weld layers 31 formed by feeding a raw material for overlay welding to the surface 20 of the base material 2 and performing welding. Each overlay weld layer 31 is composed of a high rigidity steel obtained by dispersing boride including one or more elements selected from the group 4A, 5A and 6A elements and Fe or/and the composite thereof into a matrix phase composed of pure iron or an iron alloy in an amount of 10 to 70% by volume ratio, and the overlay weld layer 31 has a Young's modulus higher than that of the base material 2. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过简单的方法有效提高刚性的机器结构的部件，并提供其制造方法。解决方案：机器结构的部件包括：由钢材构成的基材2; 以及设置有通过将基材2的表面20供给用于覆盖焊接的原料进行焊接而形成的一个或多个重叠焊接层31的覆盖焊接区域3。每个覆盖层31由通过将包含选自4A，5A和6A族元素中的一种或多种元素的硼化物和Fe或其复合物分散到由纯铁或铁构成的基质相中而获得的高刚性钢构成合金的量为10〜70体积％，覆盖层31的杨氏模量高于基材2的杨氏模量。（C）2010，JPO＆INPIT

3. 发明专利

JP2007211291A Melted high-modulus steel having excellent machinability and production method 审中-公开
标题翻译：具有优异机械性能和生产方法的熔融高模量钢
公开(公告)号：JP2007211291A
公开(公告)日：2007-08-23
申请号：JP2006032306
申请日：2006-02-09
申请人： Aichi Steel Works Ltd , 愛知製鋼株式会社
发明人： ITO YUKIO , NISHIKAWA TOMOAKI
IPC分类号： C22C38/00 , B22D27/04 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To newly provide a method for improving the machinability of a melted high-modulus steel by which the machinability of a high-modulus steel can be remarkably increased, the high-modulus steel being obtained by utilizing boride which usually provides the high-modulus steel with remarkably increased Young's modulus however with remarkably inferior machinability heretofore.
SOLUTION: The melted high-modulus steel is obtained by dispersing boride containing one or more elements selected from the group containing the group 4A elements, 5A elements, 6A elements and Fe or/and the compounded substance thereof into a matrix phase composed of pure iron or an iron alloy. Among the dispersed boride or/and the compounded substance thereof, ≥80 volume% is composed of TiB
2 , further, the volume ratio of the TiB
2 in the whole of the steel lies in the range of 8 to 23%, and at least in the part equivalent to the region to be finally machined, the number of boride and carbide with a grain size of ≥5 μm dispersed into the matrix phase is ≤0.5 piece/10
4 μm
2 .
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种提高高模量钢的切削加工性的方法，通过该方法可以显着提高高模量钢的切削性，通过使用硼化物获得的高模量钢通常提供高模量钢的杨氏模量显着提高，然而迄今为止的切削加工性能差。解决方案：熔融的高模量钢通过将含有一种或多种选自含有4A族元素，5A族元素，6A族元素和Fe或其配合物质的元素的硼化物分散在基质相中而形成，的纯铁或铁合金。在分散的硼化物或其复合物中，≥80体积％由TiB 2 组成，此外，TiB 2 的体积比在整个钢在8〜23％的范围内，至少在与最终加工区域相当的部分中，分散在基体相中的粒径≥5μm的硼化物和碳化物的数量为≤0.5片/ 10 4 微米 2 。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2012026040A High-rigidity iron-based alloy 审中-公开
标题翻译：高刚性铁基合金
公开(公告)号：JP2012026040A
公开(公告)日：2012-02-09
申请号：JP2011235181
申请日：2011-10-26
申请人： Aichi Steel Works Ltd , Toyota Central R&D Labs Inc , 愛知製鋼株式会社 , 株式会社豊田中央研究所
发明人： IKEHATA HIDEAKI , TANAKA KOJI , NAKAJIMA YOSHIHIRO , NISHIKAWA TOMOAKI , ITO YUKIO
IPC分类号： C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a new high-rigidity iron-based alloy enabling efficient conversion to high rigidity and improvement of mechanical characteristics.SOLUTION: The high-rigidity iron-based alloy comprises a matrix composed of pure iron or an iron alloy and dispersed particles composed of a boride crystallized and dispersed in the matrix. The dispersed particles comprise boride particles composed of titanium (Ti) and at least one kind of another boride particles composed of at least one or more elements of group VIa elements and iron (Fe). The boride particle composed of Ti is contained by an amount equal to or below eutectic composition in a pseudo-binary system phase diagram of metal comprising the matrix and boride composed of Ti. The content of boride particles composed of Ti is suppressed to be small (for example, 13 vol.% or below), and another boride particles are used concurrently, so that high rigidity can be achieved while coarsening of the boride particles is suppressed.
摘要翻译：要解决的问题：提供一种新的高刚性铁基合金，能够高效率地转化为高刚性并提高机械特性。解决方案：高刚性铁基合金包括由纯铁或铁合金构成的基体和由结晶并分散在基体中的硼化物组成的分散颗粒。分散颗粒包括由钛（Ti）和至少一种由至少一种或多种VIa族元素和铁（Fe）组成的其他硼化物颗粒组成的硼化物颗粒。由Ti组成的硼化物粒子的含量在由Ti构成的基体和硼化物的金属的假二元体系相图中含有等于或低于共晶组成的量。由Ti组成的硼化物颗粒的含量被抑制为小（例如13体积％或更低），并且同时使用另一种硼化物颗粒，从而可以在硼化物颗粒的粗化被抑制的同时实现高刚性。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2007154284A High rigidity iron based alloy 审中-公开
标题翻译：高刚性铁基合金
公开(公告)号：JP2007154284A
公开(公告)日：2007-06-21
申请号：JP2005353952
申请日：2005-12-07
申请人： Aichi Steel Works Ltd , Toyota Central Res & Dev Lab Inc , 愛知製鋼株式会社 , 株式会社豊田中央研究所
发明人： IKEHATA HIDEAKI , TANAKA KOJI , NAKAJIMA YOSHIHIRO , NISHIKAWA TOMOAKI , ITO YUKIO
IPC分类号： C22C38/00 , C22C38/32
摘要： PROBLEM TO BE SOLVED: To provide a new high rigidity iron based alloy in which rigidity can be efficiently increased, and also mechanical properties can be improved.
SOLUTION: The high rigidity iron based alloy is composed of: a matrix composed of pure iron or an iron alloy; and dispersed grains composed of boride crystallized out into the matrix and dispersed. The dispersed grains are boride grains composed of titanium (Ti) and at least one kind of other boride grains composed of one or more elements selected from the group VIa elements and iron (Fe), and the boride grains composed of Ti are contained in the amount of an eutectic composition or below in a pseudo two-dimensional phase diagram of the metal composing the matrix and the boride of Ti. By suppressing the content of the boride grains composed of Ti (e.g., to ≤13 vol.%), and jointly using the other boride grains, high rigidity can be realized while suppressing the coarsening of the boride grains.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以有效提高刚性的新的高刚性铁基合金，并且还可以提高机械性能。
解决方案：高刚性铁基合金由以下组成：由纯铁或铁合金组成的基体; 并将由硼化物组成的分散颗粒结晶出来，并分散。分散颗粒是由钛（Ti）组成的硼化物颗粒和由选自Ⅵa族元素和铁（Fe）中的一种或多种元素组成的至少一种其它硼化物颗粒，并且由Ti组成的硼化物颗粒包含在构成基体的金属和Ti的硼化物的假二维相图中的共晶组成或以下的量。通过抑制由Ti组成的硼化物颗粒（例如≤13体积％）的含量，并且通过使用其它硼化物颗粒，可以在抑制硼化物颗粒的粗大化的同时实现高刚性。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006022351A Precipitation hardening type nitrided steel component and production method therefor 审中-公开
标题翻译：降低型硬化型钢组件及其生产方法
公开(公告)号：JP2006022351A
公开(公告)日：2006-01-26
申请号：JP2004199560
申请日：2004-07-06
申请人： Aichi Steel Works Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛知製鋼株式会社
发明人： NISHIKAWA TOMOAKI , SUMITA ISAO , ITO YUKIO , YAMAMOTO IZURU
IPC分类号： C22C38/00 , C21D1/06 , C21D6/00 , C22C38/28 , C22C38/50 , C23C8/26
摘要： PROBLEM TO BE SOLVED: To provide a nitrided steel component and a production method therefor which enable high surface hardness to be secured even if nitriding treatment temperature is increased, and realize remarkable reduction of treatment time by high temperature treatment.
SOLUTION: The nitrided steel component is obtained by subjecting a steel having a composition comprising 0.02 to 0.10% C, ≤1.50% Si, ≤1.00% Mn, 0.50 to 1.50% Cr, ≤0.040% Al, ≤0.0100% N, 0.25 to 0.45% P and 0.30 to 1.00% Ti, and satisfying Ti-4×C-3.4N≥0.20, and the balance Fe with impurity elements to nitriding treatment, and the nitrided steel component has a tempered martensitic structure after the nitriding treatment, and also has a surface hardness of ≥650 by Hv.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：为了提供即使氮化处理温度升高也能够确保高表面硬度的氮化钢部件及其制造方法，并且通过高温处理实现显着减少处理时间。解决方案：氮化钢成分是通过使含有0.02〜0.10％C，≤1.50％Si，≤1.00％Mn，0.50〜1.50％Cr，≤0.040％Al，≤0.0100％N ，0.25〜0.45％的P和0.30〜1.00％的Ti，并且满足Ti-4×C-3.4N≥0.20，余量为Fe与杂质元素进行氮化处理，氮化钢成分在氮化后具有回火马氏体组织处理，并且Hv具有≥650的表面硬度。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006022350A High strength bainite type nitrided component and its production method 有权
标题翻译：高强度白云石型氮化物组分及其生产方法
公开(公告)号：JP2006022350A
公开(公告)日：2006-01-26
申请号：JP2004199559
申请日：2004-07-06
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： FUJIWARA TERUMOTO , NISHIKAWA TOMOAKI , SUMITA ISAO , ITO YUKIO , YAMAMOTO IZURU , AIHARA HIDEO , OCHI TATSURO
IPC分类号： C22C38/00 , B21J1/06 , B21J5/00 , C21D1/06 , C21D9/32 , C22C38/60 , C23C8/26
摘要： PROBLEM TO BE SOLVED: To provide a nitrided component capable of obtaining strength close to that of a carburized component even in the case nitriding treatment is performed under the conditions where the formation of a compound layer causing its expansion and made into an obstacle to the attainment of low strain is suppressed as far as possible.
SOLUTION: The high strength bainite type nitrided component has components comprising 0.20 to 0.30% C, ≤0.25% Si, 1.00 to 2.00% Cr, 0.10 to 0.10 to 0.20% Al, ≤0.10% Ti and 0.0060 to 0.020% N, satisfying 18
摘要翻译：要解决的问题：为了提供能够获得接近渗碳部件的强度的氮化部件，即使在渗透处理的情况下，在形成引起其膨胀并形成障碍物的化合物层的条件下进行尽可能地抑制低应变的实现。解决方案：高强度贝氏体型氮化组分具有包含0.20-0.30％C，≤0.25％Si，<0.50％Mn，≤0.03％P，≤0.05％S，> 1.00-2.00％Cr，0.10- <0.50％Mo，0.10〜0.50％V，0.10〜0.20％Al，≤0.10％Ti，0.0060〜0.020％N，满足18 <27C + 9Mn + 7Cr + 8Mo，22 <37C + 6Mn + 8Cr + 11V，平衡Fe与杂质元素，具有贝氏体组成，其中贝氏体组织的平均包装尺寸≤10μm，经高压渗氮处理后的表面硬度≥650，淬火深度≥0.2mm，表面层中化合物层的平均厚度≤1μm。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2004300473A Steel for cold forging having excellent nitriding property, and production method therefor 有权
公开(公告)号：JP2004300473A
公开(公告)日：2004-10-28
申请号：JP2003092084
申请日：2003-03-28
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： NISHIKAWA TOMOAKI , SUMITA ISAO , ITO YUKIO , AIHARA HIDEO , YAMAMOTO IZURU , OZAWA SHUJI
IPC分类号： C21D8/06 , C22C38/00 , C22C38/28 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To remarkably improve the service lives of a die and a punch on cold forging by reducing loads thereon because of the low deformation resistance and high critical working ratio of a steel, and also to obtain high surface hardness and deep hardening depth therein by nitriding treatment in a short period of time.
SOLUTION: The hot-rolled steel has a composition consisting of, by weight, 0.05 to 0.20% C,

9. 发明专利

JP2014189860A Steel plate excellent in fatigue strength and production method of the same 有权
标题翻译：钢板优良的疲劳强度及其生产方法
公开(公告)号：JP2014189860A
公开(公告)日：2014-10-06
申请号：JP2013067780
申请日：2013-03-28
申请人： Aichi Steel Works Ltd , 愛知製鋼株式会社
发明人： UDAGAWA TAKESHI , ITO YUKIO , SUGA KATSUNORI
IPC分类号： C22C38/00 , C21C5/52 , C21C7/06 , C21D9/46 , C22C38/14 , C22C38/28
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide: a steel plate excellent in a fatigue characteristic that can be used at ease in a site to which a severe repeating load stress is added; and a production method of the steel plate.SOLUTION: The steel plate excellent in a fatigue characteristic is provided which includes a specific chemical component composition, and in which the number of a specific compound oxide-based inclusion satisfying all the following conditions (a)-(e) is 90% or more of the number of the total oxide-based inclusion in the steel.(a) SiOand MnO are included as a composing oxide, and at least one of AlO, MgO and CaO is included, (b) when the total content of the composing oxide is assumed 100% by a mass ratio, 30%≤SiO≤60%, 10%≤MnO≤50%, and 10%≤AlO+MgO+CaO≤50%, (c) a diameter of the equivalent circle of the compound oxide- based inclusion is 10 μm or less, (d) a major axis/a minor axis of the compound oxide-based inclusion is 2 or less, and (e) a distance between the compound oxide-based inclusion and the other oxide- based inclusions that exist at a circumference of the compound oxide-based inclusion is 10 μm or more.
摘要翻译：要解决的问题：提供：可以在添加严重重复载荷应力的部位容易使用的疲劳特性优异的钢板; 以及钢板的制造方法。解决方案：提供具有特定化学成分组成的疲劳特性优异的钢板，其中满足以下所有条件（a）的特定复合氧化物系夹杂物的数量， - （e）为钢中总氧化物系夹杂物的数量的90％以上，（a）SiO和MnO作为构成氧化物而含有AlO，MgO，CaO中的至少一种，（b ）当质量比为30％≤SiO≤60％，10％≤MnO≤50％，10％≤AlO+ MgO +CaO≤50％时，构成氧化物的总含量为100％，（c）复合氧化物系夹杂物的当量圆的直径为10μm以下，（d）复合氧化物系夹杂物的长轴/短轴为2以下，（e）化合物存在于复合氧化物系夹杂物的周围的氧化物系夹杂物和其他氧化物系夹杂物为10μm以上。

10. 发明专利

JP2013087849A Method of manufacturing cvt ring member, the cvt ring member, and cvt belt 有权
标题翻译：制造CVT环圈，CVT环圈和CVT带的方法
公开(公告)号：JP2013087849A
公开(公告)日：2013-05-13
申请号：JP2011228141
申请日：2011-10-17
申请人： Aichi Steel Works Ltd , 愛知製鋼株式会社 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： ITO YUKIO , KOZUKA TAKUMI , NISHIDA KOJI , SHIMIZU TAKUYA
IPC分类号： F16G5/16 , C21D1/06 , C21D3/04 , C21D9/40 , C22C38/00 , C22C38/46 , C22C38/60 , C23C8/14 , C23C8/26
摘要： PROBLEM TO BE SOLVED: To provide a CVT ring member capable of improving fatigue strength without using mal aged steel and without expensive shot peening.SOLUTION: A ring member as a material formed in a ring from a thin structural steel plate is subjected to decarbonization, circumference adjustment and nitriding. Chemical components of the ring member as the material include, by mass, 0.3-0.5% of C, 0.5% or less of Si, 0.8% or less of Mn, 4.0% or less of Ni, 1.0-4.0% of Cr, 0.5-1.5% of Mo and 0.1-1.0% of V, while the remaining comprises Fe with inevitable impurities. The decarbonization can be done in a depth extending inward from a ring surface at the approximate center in a ring widthwise direction of the ring member after nitriding within a range of dc/dr of 0.03 to 0.23 where dc refers to a carbonization depth of a depth containing C of a C content of the ring member as the material minus 0.02%, and dr refers to a thickness of the ring member after the nitriding.
摘要翻译：要解决的问题：提供一种能够在不使用老化钢并且没有昂贵的喷丸硬化的情况下提高疲劳强度的CVT环构件。解决方案：作为从薄的结构钢板形成在环中的材料的环形构件进行脱碳，圆周调节和氮化。作为材料的环构件的化学成分，以质量计含有0.3〜0.5％的C，0.5％以下的Si，0.8％以下的Mn，4.0％以下的Ni，1.0〜4.0％的Cr，0.5 -1.5％的Mo和0.1-1.0％的V，而其余的包含Fe和不可避免的杂质。脱碳可以在直径为0.03〜0.23的dc / dr的范围内，在环状构件的环形宽度方向的大致中央的环形表面向内延伸的深度进行，其中dc是指深度的碳化深度含有C成分的C成分的C为材料的0.02％，dr为氮化后的环状部件的厚度。版权所有（C）2013，JPO＆INPIT

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