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1. 发明专利

JP2007256256A Method of evaluating thickness-directional component concentration of metal sample by spark discharge emission spectrophotometric analysis 有权
标题翻译：通过火花放电发射光谱分析法评估金属样品的厚度 - 方向分量浓度的方法
公开(公告)号：JP2007256256A
公开(公告)日：2007-10-04
申请号：JP2006289039
申请日：2006-10-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MIZUKAMI KAZUSANE , NANBA HIDEKAZU , MORISHIGE NORISATO
IPC分类号： G01N21/67
摘要： PROBLEM TO BE SOLVED: To provide a method of evaluating accurately and quickly a component concentration in a plate thickness-directional cross section of a metal sample, using a spark discharge emission analyzer. SOLUTION: In this method of evaluating the thickness-directional component concentration of the metal sample by spark discharge emission analysis, a surface of the metal sample of a measuring object is polishedly inclination-worked preliminarily, an emission spectrum obtained from each analytical point is spectroscopically analyzed thereafter while moving the analytical points not to be overlapped with the fellow analytical points adjacent each other, along a surface inclination direction with a thickness of the metal sample getting thin, using the spark discharge emission analysis, and the concentration of the specified component corresponding to the each thickness of the metal sample is found based on an emission intensity of wavelength corresponding to the specified component. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用火花放电发射分析仪来精确和快速地评估金属样品的板厚度方向横截面中的组分浓度的方法。解决方案：在通过火花放电发射分析评估金属样品的厚度方向分量浓度的方法中，测量对象的金属样品的表面被预先抛光倾斜，从每个分析得到的发射光谱点之后，使用火花放电发射分析，使金属样品的厚度变薄，沿着表面倾斜方向移动不与分析点重叠的分析点，并且将浓度基于对应于指定部件的波长的发射强度，找到与金属样品的每个厚度对应的特定成分。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2009235574A Method for producing grain-oriented electrical steel sheet having extremely high magnetic flux density 有权
标题翻译：生产具有极高磁通密度的面向电工钢板的方法
公开(公告)号：JP2009235574A
公开(公告)日：2009-10-15
申请号：JP2009052396
申请日：2009-03-05
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORISHIGE NORISATO , MURAKAMI KENICHI , ARAI SATOSHI , NANBA HIDEKAZU , HONMA HODAKA , MIZUKAMI KAZUSANE , KUBO YUJI
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for stably producing a grain-oriented electrical steel sheet having extremely high magnetic flux density in an industrial scale. SOLUTION: The method for producing the grain-oriented electrical steel sheet uses as material a slab composed of 0.02-0.10% C, 2.5-4.5% Si, 0.01-0.15% Mn, 0.001-0.050% S, 0.01-0.05% acid-soluble Al, 0.002-0.015% N, 0.0005-0.1000% Te. The method includes a series of processes: hot-rolling the above slab then applying a hot-rolled sheet annealing to the hot-rolled steel sheet; obtaining cold-rolled steel sheet by applying cold-rolling one time or two or more times with a process annealing interposed therebetween; then applying decarburization-annealing to the cold-rolled steel sheet and coating the cold-rolled steel sheet with an annealing separator; then applying finish-annealing to the steel sheet. In the method, just before the decarburization annealing or in the temperature raising process for decarburization annealing, the heating treatment to the temperature of ≥800°C at ≥50°C/sec heating speed, is performed. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种以工业规模稳定地制造具有极高磁通密度的方向性电磁钢板的方法。＆lt;解决方案＆gt;方向性电磁钢板的制造方法使用由0.02-0.10％C，2.5-4.5％Si，0.01-0.15％Mn，0.001-0.050％S，0.01-0.05 ％酸溶性Al，0.002-0.015％N，0.0005-0.1000％Te。该方法包括一系列方法：热轧上述板坯，然后对热轧钢板进行热轧板退火; 通过冷轧一次或两次以上，通过加工退火而获得冷轧钢板; 然后对冷轧钢板进行脱碳退火，并用退火分离机涂覆冷轧钢板; 然后对钢板进行精加工退火。在该方法中，在脱碳退火之前或脱碳退火的升温过程中，进行加热处理至≥800℃〜50℃/秒加热速度的温度。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2008063655A Method for producing grain oriented silicon steel sheet capable of stably obtaining magnetic property in sheet width direction 有权
标题翻译：用于生产厚度方向的稳定获得磁性材料的面向导向的硅钢板的方法
公开(公告)号：JP2008063655A
公开(公告)日：2008-03-21
申请号：JP2007055753
申请日：2007-03-06
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORISHIGE NORISATO , MURAKAMI KENICHI , NAKAMURA SHUICHI , HONMA HODAKA
IPC分类号： C21D8/12 , C21D9/46 , C22C38/00 , C22C38/16 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method where grain oriented silicon steel sheet having high magnetic flux density can be stably produced by uniformizing inhibitor strength in the sheet width direction upon secondary recrystallization annealing. SOLUTION: When a grain oriented silicon steel sheet is produced through a series of stages from a slab having a composition comprising, by mass, ≤0.10% C, 2.5 to 7.0% Si, 0.01 to 0.30% Mn, 0.01 to 0.40% Cu, 0.001 to 0.050% S, 0.005 to 0.060% acid soluble Al and 0.002 to 0.015% N, and the balance Fe with inevitable impurities, the steel sheet temperature in the range from 10 to 30 mm by the distance from the edge in the sheet width direction on the outlet side of finish rolling in a hot rolling stage is controlled to 900 to 1,100°C, also, hot rolled sheet annealing is performed in a two step heat treatment cycle, the steel sheet temperature in the primary soaking is controlled to 1,000 to 1,150°C, further, the steel sheet temperature in the secondary soaking is controlled to 850 to 950°C, and the holding time in the secondary soaking temperature is controlled to 10 to 300 s. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过二次再结晶退火使片宽度方向上的抑制强度均匀化可以稳定地制造具有高磁通密度的晶粒取向硅钢板的方法。解决方案：当晶粒取向硅钢板从具有质量≤0.10％C，2.5〜7.0％Si，0.01〜0.30％Mn，0.01〜0.40质量％％Cu，0.001〜0.050％S，0.005〜0.060％酸溶性Al和0.002〜0.015％N，余量为Fe与不可避免的杂质，钢板温度在10〜30mm的范围内与边缘的距离在热轧阶段的精轧出口侧的板宽度方向控制在900〜1100℃，在两步热处理循环中进行热轧板退火，初次均热中的钢板温度为控制在1000〜1150℃，另外将二次均热中的钢板温度控制在850〜950℃，将二次均热温度的保持时间控制在10〜300秒。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2009270129A Grain-oriented electrical steel sheet excellent in magnetic properties and adhesiveness of film, and manufacturing method therefor 有权
标题翻译：电磁性能优异的电磁钢板及其制造方法
公开(公告)号：JP2009270129A
公开(公告)日：2009-11-19
申请号：JP2008118705
申请日：2008-04-30
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： KUBO YUJI , MURAKAMI KENICHI , NANBA HIDEKAZU , ARAI SATOSHI , HONMA HODAKA , MORISHIGE NORISATO , MIZUKAMI KAZUSANE
IPC分类号： C23C22/00 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/60 , H01F1/16 , H01F1/18
摘要： PROBLEM TO BE SOLVED: To provide a grain-oriented electrical steel sheet to be used for an iron core material in electrical machinery and apparatus, which has both of high magnetic properties and an excellent adhesiveness of the film, shows acid resistance even when the forsteritic film is thinned, and can be industrially stably manufactured, and to provide a manufacturing method therefor. SOLUTION: The grain-oriented electrical steel sheet excellent in the magnetic properties and the adhesiveness of the film contains 2 to 5 mass% Si, has the forsteritic film on its surface, and has saturation magnetic flux density B 8 of 1.90 T or more. The forsteritic film contains one or two of Ce and La, and has a color of 1.0 or more but less than 7.0 in terms of yellow degree b * in a L * a * b * color coordinate system. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有高磁性和膜粘合性优异的电机和设备中的铁芯材料用的方向性电磁钢板，均匀显示出耐酸性当镁橄榄石薄膜变薄并且可以在工业上稳定地制造时，并提供其制造方法。解决方案：具有优异的磁特性和膜的粘合性的晶粒取向电工钢片含有2〜5质量％的Si，其表面具有镁橄榄石膜，并具有饱和磁通密度B 8 为1.90T以上。镁橄榄石膜含有Ce和La中的一种或两种，并且在L * a中的黄色度b * 中具有1.0以上且小于7.0的颜色颜色坐标系 * b * 版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008156693A Method for manufacturing grain-oriented electromagnetic steel sheet excellent in magnetic characteristic having good film 审中-公开
标题翻译：用于制造具有良好电磁性的磁性特征优良的面向导电电磁钢板的方法
公开(公告)号：JP2008156693A
公开(公告)日：2008-07-10
申请号：JP2006345790
申请日：2006-12-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MURAKAMI KENICHI , HONMA HODAKA , MORISHIGE NORISATO , NANBA HIDEKAZU , ARAI SATOSHI , MIZUKAMI KAZUSANE , KUBO YUJI
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , C23C22/00 , H01F1/18
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method for satisfying both of an industrially good film and a magnetic characteristic, which have been conventionally difficult, as regards a method for manufacturing a grain-oriented electromagnetic steel sheet used for an iron core material for an electrical apparatus. SOLUTION: In the process for manufacturing grain-oriented electrical steel sheet, a slab composed, by weight, of 0.02-0.10% C, 2.5-4.5% Si, 0.010-0.050% acid-soluble Al, 0.003-0.013% N, 0.015-0.040% S, 0.040-0.120% Mn and the balance Fe with inevitable impurities, is heated to ≥1,250°C, is subjected to hot-rolling, and then subjected to annealing and pickling; thereafter, a decarburize-annealing at one time or two times of cold rolling steps interposing the annealing during the cold rolling steps is applied; an annealing separating agent-coating is performed, and then the final finish annealing is applied; wherein a coil temperature-raising rate at the final finish annealing is 13°C/h-50°C/h till 850-T°C and 3°C/h to COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种以往难以满足工业上良好的薄膜和磁特性两者的制造方法，关于用于铁芯的方向性电磁钢板的制造方法电器材料解决方案：在制造晶粒取向电工钢板的方法中，将重量比为0.02-0.10％C，2.5-4.5％Si，0.010-0.050％酸溶性Al，0.003-0.013％ N，0.015-0.040％S，0.040-0.120％Mn，余量为不可避免的杂质，加热至≥250℃，进行热轧，然后进行退火和酸洗; 此后，施加在冷轧步骤中进行退火的一次或两次冷轧步骤的脱碳退火; 进行退火分离剂涂布，然后进行最终成品退火; 其中最终成品退火时的线圈升温速度为13℃/ h-50℃/ h，直到850-T℃，3℃/ h至<13℃/ h，直至T-1150℃，其中T = 950-1,050℃。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007314826A Grain-oriented electrical steel sheet with excellent core loss characteristic 审中-公开
标题翻译：具有优异的核心损耗特性的面向导电的电工钢板
公开(公告)号：JP2007314826A
公开(公告)日：2007-12-06
申请号：JP2006144058
申请日：2006-05-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： USHIGAMI YOSHIYUKI , FUJII NOBUNORI , MURAKAMI KENICHI , MORISHIGE NORISATO
IPC分类号： C22C38/00 , C22C38/04 , C22C38/60 , H01F1/16
CPC分类号： C22C38/02 , C22C38/04 , C22C38/60 , H01F1/14775 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a grain-oriented electrical steel sheet having better core loss characteristics by clarifying the actual state of a ä110} recrystallization texture responsible for magnetic properties. SOLUTION: The grain-oriented electrical steel sheet with excellent core loss characteristics contains 0.8 to 7 mass% Si and has a secondary recrystallization texture whose principal orientation is ä110} . This steel sheet is characterized in that average deviation angles α, β and γ from the ä110} ideal orientation of the secondary recrystallization texture satisfy (α 2 +β 2 ) 1/2 ≤γ. In the inequality, the followings are satisfied, with respect to the secondary recrystallization texture: α is an average deviation angle from the ä110} ideal orientation around a normal direction (ND) of a rolling surface; β is an average deviation angle from the ä110} ideal orientation around a direction (TD) perpendicular to a rolling direction; and γ is an average deviation angle from the ä110} ideal orientation around the rolling direction (RD). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过澄清负责磁特性的ä110} <001>再结晶织构的实际状态，提供具有更好的铁损特性的晶粒取向电工钢板。解决方案：具有优异的磁芯损耗特性的晶粒取向电工钢板含有0.8〜7质量％的Si，二次再结晶组织的主取向为ä110} <001>。该钢板的特征在于，二次再结晶织构的ä110} <001>理想取向的平均偏差角α，β和γ满足（α 2 +β 2 ） 1/2 ≤γ。在不等式中，对于二次再结晶织构，满足以下条件：α是与滚动表面的法线方向（ND）相邻的ä110} <001>理想取向的平均偏差角; β是围绕垂直于轧制方向的方向（TD）的距离ä110} <001>理想取向的平均偏差角; 并且γ是围绕轧制方向（RD）的距离ä110} <001>理想取向的平均偏差角。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2011208196A Method for manufacturing grain-oriented electromagnetic steel sheet having considerably low iron loss 有权
标题翻译：制造具有可观的低铁损失的面向导向的电磁钢板的方法
公开(公告)号：JP2011208196A
公开(公告)日：2011-10-20
申请号：JP2010075340
申请日：2010-03-29
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORISHIGE NORISATO , MURAKAMI KENICHI , ARAI SATOSHI , NANBA HIDEKAZU , KOBAYASHI HIDEYUKI , MASUMITSU NAOTO
IPC分类号： C21D8/12 , B21B3/02 , C22C38/00 , C22C38/60 , H01F1/16 , H01F1/18 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for consistently manufacturing a grain-oriented electromagnetic steel sheet of considerably low iron loss on the industrial scale.SOLUTION: The method for consistently manufacturing the grain-oriented electromagnetic steel sheet includes a series of steps of: heating a slab having the composition consisting of, by mass, C: 0.02-0.10%, Si: 2.5-4.5%, Mn: 0.01-0.15%, S: 0.001-0.050%, acid-soluble Al: 0.01-0.05%, N: 0.002-0.015%, Te: 0.0005-0.10%, and the balance Fe with inevitable impurities at the temperature of ≥1,280°C; hot-rolling the steel sheet; annealing the hot-rolled plate; cold-rolling once or twice or more including the intermediate annealing to form a cold-rolled steel sheet; performing the decarburization-annealing of the cold-rolled steel sheet; coating the separation agent for annealing mainly consisting of MgO on the surface of the steel sheet; and performing the finish-annealing. Grooves are formed during the decarburization-annealing or between the temperature-raising process before the decarburization-annealing and the decarburization-annealing, or the steel sheet is subjected to recrystallization-annealing after the decarburization-annealing.
摘要翻译：要解决的问题：提供一种在工业规模上持续制造具有相当低铁损的晶粒取向电磁钢板的方法。解决方案：一贯制造晶粒取向电磁钢板的方法包括以下一系列步骤：加热组成由以质量计含有C：0.02-0.10％，Si：2.5-4.5％，Mn：0.01-0.15％，S：0.001-0.050％，酸溶性Al：0.01-0.05％组成的板坯， N：0.002-0.015％，Te：0.0005-0.10％，余量为Fe，不可避免的杂质在温度≥1280℃; 热轧钢板; 退火热轧板; 冷轧一次或两次以上，包括中间退火以形成冷轧钢板; 进行冷轧钢板的脱碳退火; 在钢板表面涂覆主要由MgO组成的退火分离剂; 并进行最终退火。在脱碳退火期间或脱碳退火和脱碳退火前的升温工序之间形成槽，或者在脱碳退火后对钢板进行再结晶退火。

8. 发明专利

JP2010280970A Method for producing grain-oriented electromagnetic steel sheet with good magnetic flux density 有权
标题翻译：生产具有良好磁通密度的面向导电电磁钢板的方法
公开(公告)号：JP2010280970A
公开(公告)日：2010-12-16
申请号：JP2009136536
申请日：2009-06-05
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MURAKAMI KENICHI , MORISHIGE NORISATO , HONMA HODAKA
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a production method capable of stably producing a grain-oriented electromagnetic steel sheet with good magnetic flux density in an industrial scale. SOLUTION: The grain-oriented electromagnetic steel sheet is produced by: heating a slab containing 2.5-4.5% Si, 0.02-0.10% C, 0.01-0.05% acid-soluble Al, 0.003-0.02% N, 0.005-0.04% S and 0.04-0.20% Mn to a temperature of ≥1,250°C; subsequently subjecting the same to hot rolling; annealing the hot-rolled sheet; subjecting the same to cold rolling to obtain a cold-rolled sheet; subjecting the cold-rolled sheet to decarburization annealing; applying an annealing separator to the same; and conducting final finish annealing. After the decarburization annealing, the steel sheet surface achieves a strength of 2-11 and a grain size corresponding to ≤97% of the overall average grain size in ä111} orientation and achieves a strength of 2-7 and a grain size corresponding to ≥105% of the overall average grain size in ä411} orientation. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以工业规模稳定地生产具有良好磁通密度的晶粒取向电磁钢板的制造方法。解决方案：晶粒取向电磁钢板通过以下方法制造：加热含有2.5-4.5％的Si，0.02-0.10％的C，0.01-0.05％的酸溶性Al，0.003-0.02％N，0.005-0.04的板坯％S和0.04-0.20％Mn至≥2,250℃的温度; 随后对其进行热轧; 退火热轧板; 对其进行冷轧，得到冷轧板; 对冷轧板进行脱碳退火; 对其进行退火分离; 并进行最终成品退火。脱碳退火后，钢板表面的强度为2-11，晶粒尺寸对应于ä111} <112>取向的总平均粒径的≤97％，达到2-7的强度和晶粒尺寸对应于ä411} <148>方向的总平均粒度的≥105％。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2009209428A Method for manufacturing grain-oriented electromagnetic steel sheet with remarkably high magnetic flux density 有权
标题翻译：制造具有高磁导率密度的面向导电电磁钢板的方法
公开(公告)号：JP2009209428A
公开(公告)日：2009-09-17
申请号：JP2008055253
申请日：2008-03-05
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MORISHIGE NORISATO , MURAKAMI KENICHI , ARAI SATOSHI , NANBA HIDEKAZU , HONMA HODAKA , MIZUKAMI KAZUSANE , KUBO YUJI
IPC分类号： C21D8/12 , B21B3/02 , C21D9/46 , C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for stably manufacturing a grain-oriented electromagnetic steel sheet with remarkably high magnetic flux density, on an industrial scale. SOLUTION: The method for manufacturing the grain-oriented electromagnetic steel sheet includes a series of steps of: hot-rolling a slab which has a composition comprising 0.02 to 0.10% C, 2.5 to 4.5% Si, 0.01 to 0.15% Mn, 0.001 to 0.050% S, 0.01 to 0.05% acid-soluble Al, 0.002 to 0.015% N, 0.0005 to 0.1000% Te and 0.0005 to 0.1000% Bi; then annealing the hot-rolled plate; cold-rolling it once, or cold-rolling it more times while sandwiching an intermediate annealing step to form a cold-rolled steel sheet; subsequently decarburization-annealing the sheet; applying a separation agent for annealing on the sheet; and finish-annealing it. In a heating step of finish annealing, an average heating rate for a coil is controlled to 20°C/h or less at 750°C to 1,150°C. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种以工业规模稳定地制造具有非常高的磁通密度的晶粒取向电磁钢板的方法。解决方案：晶粒取向电磁钢板的制造方法包括以下一系列步骤：将具有0.02〜0.10％C，2.5〜4.5％Si，0.01〜0.15％Mn，，0.001〜0.050％S，0.01〜0.05％酸溶性Al，0.002〜0.015％N，0.0005〜0.1000％Te和0.0005〜0.1000％Bi; 然后退火热轧板; 冷轧一次，或者在夹持中间退火工序的同时冷轧多次，形成冷轧钢板; 随后对片材进行脱碳退火; 在片材上施加退火分离剂; 并完成退火。在最终退火的加热步骤中，将线圈的平均加热速度在750℃〜1150℃下控制为20℃/ h以下。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008261022A Grain oriented electrical decarburized annealed steel sheet, and method for producing the same 审中-公开
标题翻译：面向电磁脱模的退火钢板及其制造方法
公开(公告)号：JP2008261022A
公开(公告)日：2008-10-30
申请号：JP2007105534
申请日：2007-04-13
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： MURAKAMI KENICHI , HONMA HODAKA , MORISHIGE NORISATO , NANBA HIDEKAZU
IPC分类号： C22C38/00 , C21D8/12 , C21D9/46 , C22C38/60 , H01F1/147 , H01F1/16
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a carburized annealed sheet capable of stably producing a product sheet on an industrial scale and a method for producing the same, regarding a method for producing a grain oriented electrical steel sheet used as the material for the iron core of an electrical component. SOLUTION: In the carburized annealed sheet, provided that the number density and average grain diameter of the crystal grains in the ä110} orientation are denoted as N and D, respectively, and the number density and average grain diameter of the crystal grains dispersed from the grains in the ä110} are defined as n and d, 8×N×D 3 >n×d 3 is satisfied. The draft in the final cold rolling is controlled to 85 to 93%, and heating speed at 600 to 800°C in carburizing annealing is controlled to ≥80°C/s. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：待解决的问题：为了提供能够稳定地生产工业规模的产品片材的渗碳退火板及其制造方法，关于用作用于生产该材料的晶粒取向电工钢板的方法铁芯的电气部件。解决方案：在渗碳退火板中，假设ä110} <001>取向晶粒的数密度和平均粒径分别表示为N和D，数密度和平均晶粒直径将从ä110} <001>中的晶粒分散的晶粒定义为n和d，满足8×N×D 3 > n×d 3 。将最终冷轧中的牵伸控制在85〜93％，渗碳退火时的600〜800℃的加热速度控制在≥80℃/ s以下。版权所有（C）2009，JPO＆INPIT

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