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1. 发明专利

JP2014196559A 方向性電磁鋼板およびその製造方法有权
标题翻译：面向电磁钢板及其生产方法
公开(公告)号：JP2014196559A
公开(公告)日：2014-10-16
申请号：JP2014044312
申请日：2014-03-06
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： MATSUDA HIROSHI , HAYAKAWA YASUYUKI , WATANABE MAKOTO , ARAGAKI YUKIHIRO , YAMAGUCHI HIROSHI , WAKISAKA YUIKO
IPC分类号： C22C38/00 , C21D8/12 , C22C38/04 , C22C38/60 , H01F1/16
摘要：【課題】増硫法を用いて製造する場合に懸念された下地被膜の不安定形成を有利に解消して、下地被膜の被膜密着性ひいては磁気特性に優れた方向性電磁鋼板を安定して得る。【解決手段】フォルステライト下地被膜付き方向性電磁鋼板の表面から板厚中心方向へのMgおよびMnの成分プロファイル分析において、Mgの濃度変化が鋼板表層部においてピークを呈し、一方、Mnの濃度変化は、鋼板表層部の濃度が板厚中心部の地鉄に比べて低いか、または鋼板表層部に板厚中心部の地鉄に比べて高い濃度ピークを有する場合には、鋼板表面からMnおよびMgの濃度ピーク位置までの距離をそれぞれt(Mn)、t(Mg)とするとき、t(Mn)>t(Mg)の関係を満足させる。【選択図】図2
摘要翻译：要解决的问题：为了稳定地获得通过使用硫增加方法有利地消除在生产中可能发生的基板膜的不稳定形成的基板膜的膜粘合性优异的磁特性的方向性电磁钢板解决方案：在从镁橄榄石基材薄膜提供的晶粒取向电工钢板的表面到中心的Mg和Mn的成分分布的分析中，Mg的浓度变化在钢板表面层部分。对于Mn的浓度变化，当钢板表面层部分的浓度在板厚的中心部分显示出比碱铁低的峰值，或者显示出高于中心部分中的碱铁的峰值在钢板表面层部分的板厚度中，晶粒取向电工钢板满足t（Mn）> t（Mg）的关系，其中t（Mn）是从钢板表面到浓度的距离 Mn的峰值位置，t（Mg）是从钢板表面到Mg的浓度峰值位置的距离。

2. 发明专利

JP2014194050A Method of producing grain-oriented electrical steel sheet 有权
标题翻译：生产面向电工钢板的方法
公开(公告)号：JP2014194050A
公开(公告)日：2014-10-09
申请号：JP2013070401
申请日：2013-03-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： WAKISAKA YUIKO , ARAGAKI YUKIHIRO , HAYAKAWA YASUYUKI , YAMAGUCHI HIROSHI , MATSUDA HIROSHI
IPC分类号： C21D8/12 , C22C38/00 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method of producing a grain-oriented electrical steel sheet which is formed by adding nitrogen to a steel sheet before secondary recrystallization to form silicon nitride and has good magnetic characteristics owing to efficient dispersion of nitrogen into the steel and resultant deposition of silicon nitride in the grain boundary.SOLUTION: A method of producing a grain-oriented electrical steel sheet comprises carrying out a nitriding treatment before secondary recrystallization annealing so that a nitrogen increase (ΔN) is 50-1,000 mass ppm, raising the temperature temporarily to the temperature range (T1) of 400-600°C, then leaving in the temperature range (T2) of equal to or higher than 300°C and lower than 600°C for at least 20 h and raising the temperature to 800°C or higher at a rate of 15°C/h or higher.
摘要翻译：要解决的问题：提供一种通过在二次再结晶之前将氮添加到钢板上以形成氮化硅并且由于氮有效地分散到钢中而具有良好的磁特性而形成的方向性电磁钢板的方法，以及晶粒取向电工钢板的制造方法包括在二次再结晶退火之前进行氮化处理，氮增加（＆Dgr; N）为50〜1,000质量ppm，将温度暂时升高到400-600℃的温度范围（T1），然后在等于或高于300℃且低于600℃的温度范围（T2）中放置至少20小时，并提高以15℃/ h以上的速度升温至800℃以上。

3. 发明专利

JP2014156647A Nitriding treatment method and nitriding treatment device for grain-oriented electrical steel sheet 有权
标题翻译：用于面向导电电工钢板的硝化处理方法和氮化处理装置
公开(公告)号：JP2014156647A
公开(公告)日：2014-08-28
申请号：JP2013029380
申请日：2013-02-18
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUDA HIROSHI , TAKAHASHI HIDEYUKI , YAMAGUCHI HIROSHI , ARAGAKI YUKIHIRO , HAYAKAWA YASUYUKI
IPC分类号： C23C8/50 , C21D8/12 , C21D9/46 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a nitriding treatment method for a grain-oriented electrical steel sheet that is extremely useful in obtaining superior magnetic characteristics having no variance by carrying out a suitable nitriding treatment before secondary re-crystallization and then dispersing inhibitor forming elements uniformly to the overall length and overall width of a strip when manufacturing a grain-oriented electrical steel sheet.SOLUTION: In a stage after cold rolling and before secondary re-crystallization annealing in a process of manufacturing a grain-oriented electrical steel sheet, a strip is dipped in a molten salt bath so as to subject the strip to a continuous nitriding treatment.
摘要翻译：要解决的问题：提供一种方向性电磁钢板的氮化处理方法，其通过在二次再结晶之前进行适当的氮化处理，然后均匀地分散抑制剂形成元素，在获得优异的磁特性方面非常有用相对于制造方向性电磁钢板时的带材的总长度和总宽度。解决方案：在冷轧后的阶段和在取向电工钢板的制造过程中的二次再结晶退火之前的阶段浸入熔融盐浴中，以使条带经受连续氮化处理。

4. 发明专利

JP2013159833A Method and apparatus for improving iron loss of directional electromagnetic steel plate 有权
标题翻译：改进方向电磁钢板损失的方法和装置
公开(公告)号：JP2013159833A
公开(公告)日：2013-08-19
申请号：JP2012023369
申请日：2012-02-06
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OKABE SEIJI , TAKAGI SHIGEHIRO , YAMAGUCHI HIROSHI
IPC分类号： C21D8/12 , H01F1/16 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for obtaining the same effect as lengthening of an electron beam shape.SOLUTION: In segmentalization of a magnetic domain by irradiating a surface of a finish-annealed directional electromagnetic steel plate with an electron beam, when an irradiation spot of the electron beam is scanned in a direction intersecting a rolling direction of the steel plate, the irradiation spot is vibrated in the scanning direction.
摘要翻译：要解决的问题：提供一种获得与延长电子束形状相同效果的方法。解决方案：在通过用电子束照射精制退火定向电磁钢板的表面的磁畴的分段化中，当沿与钢板的轧制方向交叉的方向扫描电子束的照射点，照射点在扫描方向上振动。

5. 发明专利

JP2013159824A Method and apparatus for refining magnetic domain 有权
标题翻译：用于精制磁畴的方法和装置
公开(公告)号：JP2013159824A
公开(公告)日：2013-08-19
申请号：JP2012022760
申请日：2012-02-06
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： MATSUDA HIROSHI , TAKAGI SHIGEHIRO , YAMAGUCHI HIROSHI , TAKASHIMA MINORU
IPC分类号： C21D8/12 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for refining a magnetic domain by electron beam irradiation, by which a large curvature can be given to a steel sheet even at short distance, and miniaturization of equipment including a vacuum treating vessel can be realized, and to provided an apparatus for refining a magnetic domain.SOLUTION: There is provided a method for refining a magnetic domain, in which after secondary recrystallization annealing, an electron beam gun is disposed with respect to a grain-oriented magnetic steel sheet with a tension insulating coating film formed thereon, at a position separated from the steel sheet, and the surface of the steel sheet is irradiated with electron beam from the electron beam gun while the electron beam is oscillated in a direction crossing the rolling direction of the steel sheet. The method for refining the magnetic domain is characterized in that the steel sheet is given twist to be curved and the surface of the steel sheet is irradiated with the electron beam while a distance between the irradiated portion of the steel sheet and the electron beam gun is set to be constant in a steel sheet width direction.
摘要翻译：要解决的问题：提供一种通过电子束照射来提炼磁畴的方法，通过该方法即使在短距离内也可以给予钢板大的曲率，并且可以实现包括真空处理容器的设备的小型化，以及提供了一种用于精炼磁畴的装置。解决方案：提供一种用于精制磁畴的方法，其中在二次再结晶退火之后，相对于具有张力绝缘的晶粒取向电磁钢板设置电子束枪在与钢板分离的位置处形成的涂膜，并且电子束在与钢板的轧制方向交叉的方向上振荡时，从电子束枪照射电子束。精制磁畴的方法的特征在于，钢板被弯曲弯曲，钢板的表面用电子束照射，而钢板的照射部分和电子束枪之间的距离为设定为钢板宽度方向恒定。

6. 发明专利

JP2012177163A Method for manufacturing directional magnetic steel sheet 有权
标题翻译：制造方向磁钢板的方法
公开(公告)号：JP2012177163A
公开(公告)日：2012-09-13
申请号：JP2011040741
申请日：2011-02-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： INOUE HIROTAKA , YAMAGUCHI HIROSHI , OKABE SEIJI , OMURA TAKESHI , TAKAGI SHIGEHIRO
IPC分类号： C21D8/12 , B23K15/00 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/60 , H01F1/16 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a directional magnetic steel sheet having excellent magnetic characteristics even when used for an application causing bias magnetism by a method other than providing a gap in an iron core.SOLUTION: Strain is introduced linearly at an angle within 30° with a sheet width direction by electronic beam irradiation while turning the row interval in a rolling direction of irradiation lines to 2-10 mm and turning irradiation energy quantity E (mJ/mm) per unit area defined by the following equation (1): E (mJ/mm)=electron beam accelerating voltage (kV)×beam current value (mA)/(beam scanning speed (m/s)×beam diameter (mm)), wherein E is within the range of 20 to 220 mJ/mmso as to satisfy that a magnetic flux density Bis ≥1.90T and a magnetic flux density Bis ≤1.60T.
摘要翻译：要解决的问题：即使在用于通过除了在铁芯中提供间隙之外的方法引起偏磁的应用中也提供具有优异磁特性的定向磁钢板。解决方案：通过电子束照射将片材宽度方向以30°的角度线性地引入，将照射线的轧制方向的行间隔转换为2-10mm，并且将照射能量E（mJ / （1）中定义的单位面积的mm 2 ）E（mJ / mm 2 ）=电子束加速电压（kV）×光束电流值（mA）/（光束扫描速度（m / s）×光束直径（mm）），其中E在20〜220mJ / mm的范围内 8 为≥1.90T，磁通密度B 0.5 ≤1.60T。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2012177161A Method of producing grain-oriented electromagnetic steel sheet 有权
标题翻译：生产面向电磁钢板的方法
公开(公告)号：JP2012177161A
公开(公告)日：2012-09-13
申请号：JP2011040650
申请日：2011-02-25
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HAYAKAWA YASUYUKI , KIJIMA TAKESHI , YAMAGUCHI HIROSHI , OMURA TAKESHI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/60 , C23C22/00 , H01F1/16 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method of decreasing an iron loss of a grain-oriented electromagnetic steel sheet having a forsterite film and subjected to finish annealing, of securing interlaminar resistance, and of maintaining the appearance of the steel sheet, by avoiding the damage of an insulating film associated with the irradiation of laser or electron beam when subjecting the steel sheet to domain refinement processing after flattening annealing by using the laser or electron beam irradiation.SOLUTION: When the grain-oriented electromagnetic steel sheet is subjected to the flattening annealing, the steel sheet is subjected to insulation coating processing that mainly uses phosphate and silica. Then the processing temperature is set to 850°C or larger; and the tension applied to the steel sheet in an annealing furnace is 10 MPa or lower. Subsequently the steel sheet is subjected to the domain refinement processing in which the steel sheet is irradiated with the laser or the electron beam in a direction crossing the rolling direction of the steel plate.
摘要翻译：解决问题的方案为了提供一种降低具有镁橄榄石膜并进行最终退火的晶粒取向电磁钢板的铁损的方法，确保层间电阻，并保持钢板外观，通过在使用激光或电子束照射进行平坦化退火后对钢板进行区域精制处理时，避免与激光或电子束的照射有关的绝缘膜的损伤。解决方案：当对晶粒取向的电磁钢板进行压平退火时，钢板经受主要使用磷酸盐和二氧化硅的绝缘涂层处理。然后处理温度设定为850℃以上; 在退火炉中对钢板施加的张力为10MPa以下。接着，对与钢板的轧制方向交叉的方向的钢板照射激光或电子束的区域精制处理。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2012172259A Method of manufacturing high-strength cold-rolled steel plate excellent in bendability 审中-公开
标题翻译：制造高韧性钢板的优良方法
公开(公告)号：JP2012172259A
公开(公告)日：2012-09-10
申请号：JP2011039016
申请日：2011-02-24
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TAKAGI SHIGEHIRO , YAMAGUCHI HIROSHI , OKABE SEIJI , OMURA TAKESHI , INOUE HIROTAKA
IPC分类号： C21D1/34 , B23K15/00 , B23K26/00 , C21D1/38 , C21D9/46
摘要： PROBLEM TO BE SOLVED: To provide a technology that improves ductility, especially bendability, without spoiling virtually the strength of a cold-rolled steel plate.SOLUTION: Laser beam or electron beam is linearly directed to the surface of a steel plate at a heat input amount per unit time of 50 W or larger and a heat input amount per unit length of 10-250 J/m, so as to recover and/or recrystallize the structure adjacent to a portion to which the laser beam or electron beam is radiated, in the surface layer of the steel plate.
摘要翻译：要解决的问题：提供一种提高延展性，特别是弯曲性的技术，而不会破坏冷轧钢板的强度。
解决方案：激光束或电子束以50W或更大的单位时间的热输入量和10-250J / m的单位长度的热输入量线性地引导到钢板的表面，因此在钢板的表面层中回收和/或再结晶与激光束或电子束所辐射的部分相邻的结构。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2012102395A Grain-oriented electromagnetic steel sheet, and method for producing the same 有权
标题翻译：面向导电的电磁钢板及其制造方法
公开(公告)号：JP2012102395A
公开(公告)日：2012-05-31
申请号：JP2011212400
申请日：2011-09-28
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： INOUE HIROTAKA , ISHIDA MASAYOSHI , YAMAGUCHI HIROSHI , OMURA TAKESHI , OKABE SEIJI
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , C25F3/02 , C25F3/06 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a grain-oriented electromagnetic steel sheet having linear grooves, which is used as a transformer iron core and is suited for use under conditions wherein large external stress is applied to the steel sheet or under conditions excited by an AC magnetic flux density waveform containing at least 3% harmonic components of third order and/or higher orders in addition to a fundamental sinusoidal wave.SOLUTION: In the grain-oriented electromagnetic steel sheet, the width and depth of the linear grooves are 50-300 μm and ≥10 μm, respectively, the distance between grooves in the rolling direction is 2-10 mm, and the curvature radius at a part where a groove side wall intersects with a groove bottom surface of the linear grooves is ≥1.0 μm.
摘要翻译：要解决的问题：提供一种具有直线槽的晶粒取向电磁钢板，其用作变压器铁芯，并且适用于在钢板上施加大的外应力或在钢板条件下激励的条件通过除了基本正弦波之外还包含三阶和/或更高阶的至少3％的谐波分量的交流磁通密度波形。解决方案：在晶粒取向电磁钢板中，线性槽的宽度和深度分别为50-300μm和≥10μm，轧制方向上的槽之间的距离为2-10mm，槽侧壁与线槽的槽底面相交的部分的曲率半径为≥1.0μm。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2012057218A Grain-oriented electromagnetic steel sheet and method of manufacturing the same 有权
标题翻译：面向导电电磁钢板及其制造方法
公开(公告)号：JP2012057218A
公开(公告)日：2012-03-22
申请号：JP2010202375
申请日：2010-09-09
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： YAMAGUCHI HIROSHI , OMURA TAKESHI , OKABE SEIJI
IPC分类号： C21D8/12 , C22C38/00 , C22C38/04 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method of reducing noise generated when exciting a transformer iron core produced using a grain-oriented electromagnetic steel sheet, in a method of manufacturing the steel sheet for reducing iron loss by irradiating a surface with a pulse laser and forming irradiation marks in a point sequence shape on the surface.SOLUTION: When scanning a pulse-like laser in a direction crossing a rolling direction on the surface of the grain-oriented electromagnetic steel sheet after secondary recrystallization annealing, forming irradiation marks in a point sequence shape extending in the crossing direction on the surface of the steel sheet, and executing magnetic domain subdivision processing, the intervals of the irradiation marks are changed and made unequal without being turned to equal intervals as in a conventional technique.
摘要翻译：解决的问题：提供一种降低使用晶粒取向电磁钢板制造的变压器铁芯的激励时产生的噪声的方法，在通过用表面照射来制造用于还原铁损的钢板的方法中，脉冲激光器和在表面上形成点序列形状的照射标记。解决方案：在二次再结晶退火之后沿着与取向电磁钢板的表面交叉的方向扫描脉冲状激光，在沿着交叉方向延伸的点序列形状上形成照射标记钢板的表面，并且执行磁畴细分处理时，如现有技术那样，照射标记的间隔被改变而不变成相等的间隔。版权所有（C）2012，JPO＆INPIT

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