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1. 发明专利

JP2012193452A STEEL SHEET HOT-DIP-COATED WITH Zn-Al-Mg-BASED SYSTEM, AND PROCESS OF MANUFACTURING THE SAME 有权
标题翻译：用Zn-Al-Mg系统热镀锌的钢板及其制造方法
公开(公告)号：JP2012193452A
公开(公告)日：2012-10-11
申请号：JP2012041552
申请日：2012-02-28
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： HIRATA KENTARO , KATAGIRI YUKIO , FUJIWARA SUSUMU , HOSOMI KAZUAKI , URANAKA MASAAKI
IPC分类号： C22C38/00 , C21D9/46 , C22C18/04 , C22C38/14 , C22C38/38 , C23C2/06
CPC分类号： B60R13/00 , B32B15/013 , C21D8/0205 , C21D8/0278 , C21D2211/004 , C21D2211/005 , C22C18/04 , C22C23/02 , C22C23/04 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/40 , Y10T428/12799
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet hot-dip-coated with a Zn-Al-Mg-based system, which can enhancing all of a burring property, molten metal embrittlement crack resistance, and corrosion resistance of a welded part, as a steel sheet suitable for an arc welded structural part member.SOLUTION: This steel sheet hot-dip-coated with a Zn-Al-Mg-based system for welded structural members has a Zn-Al-Mg-based hot-dip coating layer on the surface of a base steel sheet, wherein the base steel sheet has a specified chemical composition and has such a metallic structure that Ti-containing precipitates having an average particle diameter of 20 nm or smaller are dispersed in a matrix composed of a ferrite phase, and the relationship between the contents of steel components and the thickness (t) (mm) in the base steel material is such a relationship that a molten metal embrittlement cracking sensitivity index (H3 value) represented by formula (3) is 2.90 or less. H3 value=C/0.2+Si/5.0+Mn/1.3+Cr/1.0+Mo/1.2+0.4t-0.7(Cr+Mo)(3).
摘要翻译：要解决的问题：提供一种热浸涂覆有Zn-Al-Mg系的钢板，其可以提高焊接的所有的翻边性能，熔融金属脆化抗裂性和耐腐蚀性作为适用于电弧焊结构部件的钢板。解决方案：用于焊接结构件的Zn-Al-Mg基系统热浸涂覆的钢板在基体钢板的表面上具有Zn-Al-Mg基热浸涂层，其特征在于，所述基材钢板具有规定的化学成分，并且具有将平均粒径为20nm以下的含Ti析出物分散在由铁素体相构成的基体中的金属结构，并且钢的含量之间的关系基材中的组分和厚度（t）（mm）是由式（3）表示的熔融金属脆化裂纹敏感性指数（H3值）为2.90以下的关系。 H3 = C / 0.2 + Si / 5.0 + Mn / 1.3 + Cr / 1.0 + Mo / 1.2 + 0.4t-0.7（Cr + Mo） 1/2 < 。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2010235977A High workability steel plate for carburizing 有权
标题翻译：高效的钢板加固
公开(公告)号：JP2010235977A
公开(公告)日：2010-10-21
申请号：JP2009082728
申请日：2009-03-30
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： TAKEDA KIMIYOSHI , TAGASHIRA SATOSHI , KATAGIRI YUKIO , SUZAKI TSUNETOSHI
IPC分类号： C22C38/00 , C21D1/06 , C21D9/32 , C21D9/40 , C21D9/46 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel plate having excellent workability and carburization hardening property, even in the steel plate having 3-15 mm plate thickness to be used for a gear, the outer ring of a bearing, a pulley, and the like. SOLUTION: A high workability steel plate for carburizing, has a component composition composed of, by mass%, 0.10-0.40% C, 0.02-0.40% Si, 1.00-2.00% Mn, ≤0.02% P, ≤0.02% S, 0.20-0.70% Cr, 0.0003-0.005% B, 0.03-0.20% Ti and further, when necessary, one or two kinds of 0.20-2.00% Ni and 0.10-0.80% Mo and the balance Fe with inevitable impurities. The steel plate has a structure such that a structural phase occupying ≥1% area ratio is only ferrite phase and cementite phase, and the number of the particles having ≥0.2 μm in the cementite phase is ≤1,500 pieces/10,000 μm 2 , and in addition to it, Ti carbide particles having 20-100 nm particle diameter are dispersed in the range of 4,000-20,000 pieces/10,000 μm 2 , and the steel plate shows hardness of COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了提供一种具有优异的可加工性和渗碳硬化性能的钢板，即使在用于齿轮的板厚度为3-15mm的钢板中，轴承的外圈，滑轮，等等。解决方案：用于渗碳的高可加工性钢板，具有以质量％计含有0.10-0.40％C，0.02-0.40％Si，1.00-2.00％Mn，≤0.02％P，≤0.02％的组分组成的组分组合物， S，0.20-0.70％Cr，0.0003-0.005％B，0.03-0.20％Ti，此外，如果需要，可以使用一种或两种0.20-2.00％的Ni和0.10-0.80％的Mo，余量为Fe和不可避免的杂质。钢板具有这样的结构，使得占据面积比为1％的结构相仅为铁素体相和渗碳相，渗碳体相中≥0.2μm的粒子数为≤1,500个/10,000μm 2 除此之外，具有20-100nm粒径的Ti碳化物颗粒分散在4,000-20,000片/10,000μm 2 的范围内，并且钢板显示硬度 <180 HV。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2006291236A Middle and high carbon steel sheet with high-strength superior in stampability 有权
标题翻译：具有高强度中高耐磨性的中高碳钢板
公开(公告)号：JP2006291236A
公开(公告)日：2006-10-26
申请号：JP2005108955
申请日：2005-04-05
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KATAGIRI YUKIO , SUZUKI MASAHITO , INOUE MAKOTO , HIRAMATSU TERUSHI
IPC分类号： C22C38/00 , C22C38/06 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide a middle and high carbon steel sheet with high-strength which has high strength and superior stampability and is suitable for parts for various machine structures.
SOLUTION: The middle and high carbon steel sheet with high-strength has a metallurgical structure in which carbides with an average particle diameter of 0.30 μm or smaller are dispersed in a matrix consisting of ferritic crystal grains with an average grain size of 2.0 μm or smaller; contains C in an amount of 0.30 to 1.00 mass%; and is thermally refined into the hardness of 250 HV. Specifically, the steel sheet has a composition comprising 2.0 mass% Si or less, 1.0 mass% Mn or less, 0.03 mass% P or less, 0.02 mass% S or less, 0.1 mass% acid-soluble Al or less in addition to 0.30-1.00 mass% C, and the balance substantially Fe; and may also further include one or more elements of 2.0 mass% Cr or less, 0.5 mass% Mo or less, 0.3 mass% Cu or less, 2.0 mass% Ni or less and 0.10 mass% Ti or less.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有高强度和优异的冲压性的高强度的中高碳钢板，适用于各种机械结构的部件。解决方案：具有高强度的中高碳钢板和高碳钢板具有冶金结构，其中平均粒径为0.30μm或更小的碳化物分散在由平均粒径为2.0的铁素体晶粒组成的基体中 μm以下; 含有0.30〜1.00质量％的C; 并被热精炼成250HV的硬度。具体地说，钢板的组成包括2.0质量％以下，1.0质量％以下，0.03质量％以下，0.02质量％以下，0.1质量％以下的酸溶性Al以下，0.30以下 -1.00质量％C，余量基本为Fe; 还可以包含2.0质量％以下Cr，0.5质量％以下，0.3质量％以下Cu，2.0质量％以下，0.10质量％Ti以下的1种以上的元素。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2014189812A High strength plated steel sheet for weld structure member and manufacturing method therefor 有权
标题翻译：焊接结构件高强度钢板及其制造方法
公开(公告)号：JP2014189812A
公开(公告)日：2014-10-06
申请号：JP2013064370
申请日：2013-03-26
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： HIRATA KENTARO , KATAGIRI YUKIO , MORIKAWA SHIGERU , URANAKA MASAAKI
IPC分类号： C22C38/00 , C21D9/46 , C22C18/04 , C22C38/38 , C23C2/06 , C23C2/40
CPC分类号： C23C2/06 , B32B15/013 , C21D8/0236 , C21D8/0247 , C21D8/0263 , C21D8/0278 , C21D9/46 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C18/04 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/26 , C23C2/28 , C23C2/40
摘要： PROBLEM TO BE SOLVED: To provide a high strength plated steel sheet excellent in corrosion resistance, molten metal embrittlement crack resistance and bendability at a weld zone.SOLUTION: There is provided a high strength molten Zn-Al-Mg-based plated steel sheet for weld structure member having a steel composition containing, by mass%, C:0.050 to 0.150%, Si:0.001 to 1.00%, Mn:1.00 to 2.50%, P:0.005 to 0.050%, S:0.001 to 0.020%, and Al:0.005 to 0.100%, having a steel base material having a metallographic structure consisting of a ferrite phase and a second phase mainly containing martensite having an average particle diameter of 8 μm or less, and a sheet thickness t (mm) and a chemical component are adjusted to have C/0.2+Si/5.0+Mn/1.3+Cr/1.0+Mo/1.2+0.4 t-0.7(Cr+Mo)of 2.9 or less.
摘要翻译：要解决的问题：提供一种耐蚀性优异，熔融金属脆性抗裂性和焊接区的弯曲性优异的高强度电镀钢板。本发明提供一种高强度熔融Zn-Al-Mg系镀层钢板，焊接结构构件，其具有以质量％计含有C：0.050〜0.150％，Si：0.001〜1.00％，Mn：1.00〜2.50％，P：0.005〜0.050％，S：0.001〜0.020％，Al ：0.005〜0.100％，具有由铁素体相和主要含有平均粒径为8μm以下的马氏体的第二相组成的金相组织的钢基材和板厚t（mm）和化学成分调整为C / 0.2 + Si / 5.0 + Mn / 1.3 + Cr / 1.0 + Mo / 1.2 + 0.4 t-0.7（Cr + Mo）为2.9以下。

5. 发明专利

JP2014136824A Raw material slab, thin steel sheet and manufacturing method of the same 审中-公开
标题翻译：原材料薄板，薄钢板及其制造方法
公开(公告)号：JP2014136824A
公开(公告)日：2014-07-28
申请号：JP2013006637
申请日：2013-01-17
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KONDO TOSHIHIRO , KATAGIRI YUKIO , MORIKAWA SHIGERU , FUJIWARA SUSUMU , ISAYAMA TOMOAKI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/14
摘要： PROBLEM TO BE SOLVED: To prevent surface flaw of a hot rolled sheet due to a crack generated on a slab surface from both corner parts of the slab to an 80 mm position during manufacturing the slab of a medium carbon steel (0.06% to 0.30% C) by a vertical flexure type continuous casting machine.SOLUTION: There is provided a continuous cast slab having a steel composition containing, by mass%, C:0.06 to 0.30%, Si:0.04% or less, Mn:0.10 to 2.0%, P:0.03% or less, S:0.03% or less, acid soluble Al:0.005 to 0.10%, Ti:0.001 to 0.10%, B:0.0005 to 0.005%, N:0.006% or less, Ti>48/14 N and the balance Fe with inevitable impurities.
摘要翻译：要解决的问题：为了防止在制造中碳钢板坯时（0.06％至0.30％）的板坯从板坯的两个角部产生的裂纹产生的热轧板的表面缺陷到80mm的位置， C）通过垂直弯曲型连续铸造机提供。本发明提供一种连续铸造板坯，其具有以质量％计含有C：0.06〜0.30％，Si：0.04％以下，Mn：0.10〜2.0％，P：0.03％以下，S：0.03％以下，酸溶性Al：0.005〜0.10％，Ti：0.001〜0.10％，B：0.0005〜0.005％，N：0.006％以下，Ti> 48/14 N和余量为Fe与不可避免的杂质。

6. 发明专利

JP2013227649A Steel plate for high output reluctance motor iron core, method of manufacturing the steel plate, rotor for reluctance motor and stator using the steel plate as raw material, and reluctance motor 有权
标题翻译：用于高输出功率电动机铁芯的钢板，制造钢板的方法，用于使用钢板作为原材料的电动机和定子的转子和电动机
公开(公告)号：JP2013227649A
公开(公告)日：2013-11-07
申请号：JP2012224694
申请日：2012-10-10
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： FUJIWARA SUSUMU , IWAZU TOMONAGA , KATAGIRI YUKIO , SAITO MORIHIRO
IPC分类号： C22C38/00 , C21D8/12 , C22C38/06 , C22C38/16 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide: a steel sheet that can make an output torque greater when using the same as an iron core of a reluctance motor; a method of manufacturing the steel plate; a rotor and a stator, using the steel plate as an iron core material; and a motor.SOLUTION: A steel sheet in which a value of magnetic flux density Bis at least 1.0 T when strength of a magnetic field is 500 A/m and Bis at least 1.70 T when being 5,000 A/m is used as an iron core steel sheet of a reluctance motor. It is desirable that a metal structure of the steel sheet is a ferrite single-phase structure in which a crystal grain size is at least 25 μm, since the magnetic flux density in a low magnetic field side becomes high.
摘要翻译：要解决的问题：提供：使用与磁阻电动机的铁芯一样使输出转矩更大的钢板; 钢板的制造方法; 转子和定子，使用钢板作为铁芯材料; 和电动机。其中当磁场强度为500A / m时磁通密度Bis的值至少为1.0T，当为5,000A / m时为双轴至少1.70T的钢板作为铁磁阻电机的核心钢板。由于低磁场侧的磁通密度变高，所以优选钢板的金属结构是结晶粒径为25μm以上的铁素体单相结构。

7. 发明专利

JP2013076161A Steel sheet for rotor core of high-speed ipm motor, method of manufacturing the same, rotor core of ipm motor, and ipm motor 审中-公开
标题翻译：高速IPM电机转子芯钢，其制造方法，IPM电机转子芯和IPM电机
公开(公告)号：JP2013076161A
公开(公告)日：2013-04-25
申请号：JP2012147416
申请日：2012-06-29
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： IWAZU TOMONAGA , KATAGIRI YUKIO , FUJIWARA SUSUMU
IPC分类号： C22C38/00 , C21D8/12 , C22C38/06 , C22C38/58 , H01F1/16 , H01F1/18
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet for a rotor core which, when the steel sheet is used as a rotor core of an IPM motor, does not cause lowering of a reluctance torque of the IPM motor, and has high yield strength and high proportional limit capable of coping with high-speed rotation.SOLUTION: The steel sheet for a rotor core of a high-speed IPM motor having a yield strength of 780 N/mmor more, a proportional limit of 600 N/mmor more, and a magnetic flux density Bof 1.65 T or more, is obtained by: cold-rolling a hot-rolled steel sheet having a component composition including >0.03-0.90 mass% of C, 0-3.0 mass% of Si, 0.05-2.5 mass% of Mn, ≤0.05 mass% of P, ≤0.02 mass% of S, 0.005-0.20 mass% of acid soluble Al, 0.001-0.020 mass% of N, and the balance Fe with inevitable impurities, to adjust the final rolling rate to 10% or more; and then heating the resultant cold-rolled sheet at a temperature range of from 200 to 500°C.
摘要翻译：要解决的问题：提供一种用于转子铁心的钢板，当钢板用作IPM电动机的转子铁芯时，不会导致IPM电动机的磁阻转矩降低，并且具有高的屈服强度和高比例极限能够应对高速旋转。解决方案：屈服强度为780N / mm 2 的高速IPM电机的转子铁心用钢板，比例限制为600N / mm 2 以上，磁通密度B 8000 为1.65T以上，通过以下方式获得：冷轧组成成分为：C：0.03〜0.90质量％，Si：0.3〜3.0质量％，Mn：0.05〜2.5质量％，P：0.05质量％，P：0.02质量％以下的成分组成的热轧钢板， 0.005-0.20质量％的酸溶性Al，0.001-0.020质量％的N，余量为Fe与不可避免的杂质，将最终轧制速率调整到10％以上; 然后在200〜500℃的温度范围内加热得到的冷轧板。版权所有（C）2013，JPO＆INPIT

8. 发明专利

JP2009024233A High carbon steel sheet excellent in hardenability, fatigue property and toughness, and method for producing the same 有权
标题翻译：高碳钢，耐疲劳性，韧性好的高碳钢板及其制造方法
公开(公告)号：JP2009024233A
公开(公告)日：2009-02-05
申请号：JP2007189872
申请日：2007-07-20
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KATAGIRI YUKIO , TAKEDA KIMIYOSHI , TAGASHIRA SATOSHI , SUZAKI TSUNETOSHI
IPC分类号： C22C38/00 , B21B3/00 , C21D9/46 , C22C38/14 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To provide a high carbon steel sheet which is excellent in blanking workability and hardenability thereafter, in which the amount of undissolved carbide and the grain size distribution thereof can easily be controlled by quenching/tempering treatment, and which can produce a component improved in fatigue properties in addition to toughness.
SOLUTION: An annealed steel sheet has a constitution containing, by mass, 0.50 to 0.70% C, ≤0.5% Si, 1.0 to 2.0% Mn, ≤0.02% P, ≤0.02% S and 0.001 to 0.10% Al, and further containing one kind or two kinds or more selected from 0.05 to 0.50% V, 0.02 to 0.20% Ti and 0.01 to 0.50% Nb, and having a structure where the spheroidizing ratio of carbides is ≥95%, and further, carbides with the maximum particle diameters of ≤2.5 μm are dispersed.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种淬火加工性和淬透性优异的高碳钢板，其中不溶性碳化物的量和其粒度分布可以通过淬火/回火处理容易地控制，并且哪些除了具有韧性之外，还可以生产提高疲劳性能的成分。解决方案：退火钢板具有以质量计含有C：0.50-0.70％C，≤0.5％Si，1.0-2.0％Mn，≤0.02％P，≤0.02％S和0.001-0.10％Al，并且还含有选自0.05〜0.50％V，0.02〜0.20％Ti和0.01〜0.50％Nb中的一种或两种以上，并且具有碳化物的球化率≥95％的结构，此外，碳化物与分散最大粒径≤2.5μm的粒径。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2006283175A High carbon steel sheet having excellent machinability 有权
标题翻译：高碳钢板具有优异的机械性能
公开(公告)号：JP2006283175A
公开(公告)日：2006-10-19
申请号：JP2005108223
申请日：2005-04-05
申请人： Nisshin Steel Co Ltd , 日新製鋼株式会社
发明人： KATAGIRI YUKIO , SUZUKI MASAHITO , HIRAMATSU TERUSHI
IPC分类号： C22C38/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-carbon steel sheet which is machined to product shapes of machine parts and parts for automobiles, etc., by improving machinability without depending on deposition of graphite and addition of free-cutting elements.
SOLUTION: The high-carbon steel sheet contains 0.6 to 1.5mass% C, ≤1.0mass% Si, 0.1 to 2.0mass% Mn, ≤0.02mass% S, ≤0.03mass% P, and 0.005 to 0.20mass% Al, has an area rate of 40 to 80% and lamella spacing of ≥0.4 μm and is made into a mixed structure of pearlite, ferrite+spherical or bar-shaped cementite. If necessary, one or two or more of ≤2.5mass% Ni,≤2.0 mass% Cr, ≤1.0mass% Mo and/or one or two or more of ≤0.07mass% Ti, ≤0.07mass% Nb, ≤0.4mass% V. and ≤0.07mass% B may be incorporated therein.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过提高机械加工性而不依赖于石墨沉积并添加自由切削元件而加工成机械零件和汽车零件形状的高碳钢板。
解决方案：高碳钢板含有0.6〜1.5质量％的C，≤1.0质量％的Si，0.1〜2.0质量％的Mn，≤0.02质量％S，≤0.03质量％的P，0.005〜0.20质量％ Al，面积率为40〜80％，薄片间距≥0.4μm，制成珠光体，铁素体+球形或棒状渗碳体的混合结构。如果需要，≤2.5质量％Ni，≤2.0质量％Cr，≤1.0质量％Mo中的一种或两种以上，和/或≤0.07质量％Ti，≤0.07质量％Nb，≤0.4质量的一种或两种以上可以加入％V.和≤0.07质量％B。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2014196535A 弱め界磁性に優れたＩＰＭモータのロータ鉄心用鋼板及びその製造方法有权
标题翻译：用于弱磁场系统性能优良的IPM电机的转子铁心用钢板及其制造方法
公开(公告)号：JP2014196535A
公开(公告)日：2014-10-16
申请号：JP2013072759
申请日：2013-03-29
申请人：日新製鋼株式会社 , Nisshin Steel Co Ltd
发明人： IWAZU TOMONAGA , KATAGIRI YUKIO , FUJIWARA SUSUMU
IPC分类号： C22C38/00 , C21D8/12 , C21D9/46 , C22C38/06 , C22C38/58 , H01F1/16 , H01F1/18
摘要：【課題】IPMモータのロータ用鉄心として用いるときに、高速回転域での出力トルクをより大きくできる鋼板を提供する。【解決手段】磁界の強さが8000A/mの時の磁束密度B8000の値が1.65T以上であり、フェライトの結晶粒径を30μm以下とすることでその時の残留磁束密度が0.5T以上、好ましくは1.0T以上であり、必要に応じて8000A/mまで磁化した時の保磁力が100A/m以上、好ましくは300A/m以上であるIPMモータのロータ鉄心用鋼板とする。【選択図】なし
摘要翻译：要解决的问题：为了提供一种钢板，其中当用作IPM电动机的转子的铁芯时，可以使高速旋转区域中的输出转矩更大。解决方案：用于转子铁的钢板 IPM电动机的铁芯的磁通密度B8000的值为1.65T以上时，当磁场强度为8000A / m时，铁素体的晶粒尺寸为30μm以下，残留磁通量此时的密度为0.5T以上，优选为1.0T以上。当根据要求进行磁化至8000A / m时，矫顽力为100A / m以上，优选为300A / m以上。

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