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41. 发明专利

JP2014196558A 方向性電磁鋼板の製造方法有权
标题翻译：生产面向电工钢板的方法
公开(公告)号：JP2014196558A
公开(公告)日：2014-10-16
申请号：JP2014044299
申请日：2014-03-06
申请人： Jfeスチール株式会社 , Jfe Steel Corp
发明人： HAYAKAWA YASUYUKI , OKUBO TOMOYUKI , ARAGAKI YUKIHIRO , WATANABE MAKOTO
IPC分类号： C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
摘要：【課題】方向性電磁鋼板の製造工程において、脱炭焼鈍条件と浸硫処理条件を適切に組み合わせることにより、磁気特性と被膜特性の両者に優れた方向性電磁鋼板を得る。【解決手段】方向性電磁鋼板を製造するに際し、脱炭焼鈍前段の800℃を超える温度域で少なくとも60秒間にわたり、雰囲気酸化性〔P(H2O)/P(H2)〕を0.10以上、0.30以下に制御し、脱炭焼鈍後の酸素目付量を0.70〜1.10g/m2に制限し、MgOを主体とする焼鈍分離剤中に硫酸マグネシウムを5mass%以上含有させて、二次再結晶焼鈍後の酸素目付量(OFA)と脱炭焼鈍後の酸素目付量(O2H)の比(OFA/O2H)を2.8〜4.1とし、かつ二次再結晶焼鈍後の下地被膜付きS量を15ppm以上とする。【選択図】図7
摘要翻译：要解决的问题：提供一种在制造方向性电磁钢板的工序中，通过将脱碳条件适当地与脱硫条件组合而成的磁特性和膜特性优异的晶粒取向电工钢板。晶粒取向电工钢板，在脱碳退火前期的800℃以上的温度区域中，在60秒以上的气氛氧化性[P（HO）/ P（H）]控制为0.10〜0.30，脱碳退火后的氧重量限制在0.70〜10g / m。硫酸镁在基于MgO的退火分离器中含有5质量％，以将二次再结晶退火后的氧重量（O）的比（O / O）调节至脱碳退火后的氧重量（O）至2.8-4.1，二次再结晶退火后的基板膜的S含量为15ppm以上。

42. 发明专利

JP2014173103A Method of producing grain-oriented magnetic steel sheet 有权
标题翻译：生产面向磁性钢板的方法
公开(公告)号：JP2014173103A
公开(公告)日：2014-09-22
申请号：JP2013044605
申请日：2013-03-06
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OKUBO TOMOYUKI , IMAMURA TAKESHI , SUEHIRO RYUICHI
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 producing a grain-oriented magnetic steel sheet excellent in magnetic properties and having little variation in magnetic properties in a coil longitudinal direction.SOLUTION: The method of producing a grain-oriented magnetic steel sheet is provided in which an a steel raw material containing, by mass%, C:0.002 to 0.10%, Si:2.0 to 8.0% and Mn:0.005 to 1.0% is hot rolled, cold rolled after subjected to hot rolled sheet annealing as needed, and the resulting cold rolled sheet is subjected to primary recrystallization annealing acting also as decarbonization annealing, then final annealing. In the method, each aging treatment conducted between path in the final cold rolling satisfies the following expression: (Dt/T)≤2.0×10, where D=0.394exp(-(8.02×10)/8.31T), T:aging temperature (K), t:aging time (second), and the cold rolled steel sheet is subjected to a soaking treatment for holding the cold rolled steel sheet at any temperature between 250 to 600°C for 1 to 10 seconds when the cold rolled steel sheet is rapidly heated at 50°C/s or more between 200 to 700°C in a heating process of the primary recrystallization annealing.
摘要翻译：要解决的问题：提供一种制造磁性能优异且线圈长度方向磁性能变化小的取向磁性钢板的方法。解决方案：提供一种晶粒取向电磁钢板的制造方法其中以质量％计含有C：0.002〜0.10％，Si：2.0〜8.0％，Mn：0.005〜1.0％的钢原料进行热轧，根据需要进行热轧退火后进行冷轧，对得到的冷轧板进行一次再结晶退火，还进行脱碳退火，然后进行最终退火。在该方法中，在最终冷轧中的路径之间进行的每个时效处理满足以下表达式：（Dt / T）≤2.0×10，其中D = 0.394exp（ - （8.02×10）/8.31T），T：温度（K），t：老化时间（秒）），冷轧钢板进行均热处理，将冷轧钢板在250〜600℃之间的任何温度下保持1〜10秒，在一次再结晶退火的加热工序中，钢板在200℃〜700℃之间以50℃/ s以上的速度快速加热。

43. 发明专利

JP2013057118A Method for 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：JP2013057118A
公开(公告)日：2013-03-28
申请号：JP2012161136
申请日：2012-07-20
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： WATANABE MAKOTO , ARAGAKI YUKIHIRO , TAKAMIYA TOSHITO , OKUBO TOMOYUKI
IPC分类号： C21D9/46 , C21D9/673 , C22C38/00 , C22C38/60 , H01F1/16
CPC分类号： H01F41/04 , C21D6/00 , C21D8/12 , C21D8/1233 , C21D8/1266 , C21D8/1272 , C21D8/1283 , C21D9/46 , C21D2201/05 , C22C38/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To reduce shape defects arising in finishing annealing, and to increase product yield.SOLUTION: There is provided a method for producing a grain-oriented electrical steel sheet by subjecting a post-cold-rolling coil for a grain-oriented electrical steel sheet to primary recrystallization annealing, applying an annealing separation agent, and performing finishing annealing, wherein in the heating step of the primary recrystallization annealing, rapid heating is performed between 500-700°C at least at 80°C/sec, and in the heating step of finishing annealing, a holding process is performed that holds for 2-100 hours between 700-1,000°C. Preferably, finishing annealing is additionally performed after laying down an insulating material onto the upper surface of a coil pedestal, which is in the annealing furnace used in finishing annealing, in a concentric manner from the outer peripheral side and at least at 20% of the radius of the coil pedestal.
摘要翻译：要解决的问题：减少退火中出现的形状缺陷，提高产品产量。解决方案：提供了一种通过对晶粒取向电工钢板的后冷轧线圈进行一次再结晶退火，涂布退火分离剂和进行精加工来制造晶粒取向电工钢板的方法退火，其中在一次再结晶退火的加热步骤中，在500-700℃至少80℃/秒之间进行快速加热，并且在精加工退火的加热步骤中，进行保持2 700-1,000℃之间-100小时。优选地，在从外周侧以同心的方式将绝缘材料放置在线圈基座的上表面上，并且至少在20％线圈座的半径。版权所有（C）2013，JPO＆INPIT

44. 发明专利

JP2012184497A Method for producing grain-oriented electromagnetic steel sheet 有权
标题翻译：生产面向导电电磁钢板的方法
公开(公告)号：JP2012184497A
公开(公告)日：2012-09-27
申请号：JP2011174949
申请日：2011-08-10
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： ARAGAKI YUKIHIRO , OKUBO TOMOYUKI , TAKASHITA TAKUYA
IPC分类号： C21D8/12 , B21B3/02 , C22C38/00 , C22C38/04 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To propose a novel method for producing a grain-oriented electromagnetic steel sheet by which texture modification effect same as that of warm rolling can be attained.SOLUTION: Steel slab containing 0.01-0.10 mass% C, 2.0-4.5 mass% Si and 0.01-0.5 mass% Mn is hot-rolled to produce a hot-rolled plate, and the hot-rolled plate is annealed. Then, the hot-rolled plate is rolled at rolling-reduction ratio of 85% or more by one-time cold rolling, or it is rolled at rolling-reduction ratio of 80% or more by finish cold rolling comprising two or more times cold rolling with intermediate annealing, to produce a cold-rolled plate having a final plate thickness. The cold-rolled plate is subjected to primary recrystallize-annealing and secondary recrystallize-annealing to obtain the grain-oriented electromagnetic steel sheet. In the method for producing the grain-oriented electromagnetic steel sheet, low strain rate cold rolling of 150sor less in strain rate is conducted at least one pass or more in a step of the cold rolling in which a total rolling reduction is 50% or less.
摘要翻译：解决问题的方案：提出一种可以获得与温轧相同的织构修饰效果的方向性电磁钢板的制造方法。
解决方案：将含有0.01-0.10质量％C，2.0-4.5质量％Si和0.01-0.5质量％Mn的钢板热轧制成热轧板，并对该热轧板进行退火。然后，通过一次冷轧，以85％以上的轧制减量率轧制热轧板，或者通过包含2次以上的冷轧的精冷轧以80％以上的轧制减速比进行轧制用中间退火进行轧制，制造具有最终板厚度的冷轧板。对冷轧板进行一次再结晶退火和二次再结晶退火，得到晶粒取向电磁钢板。在晶粒取向电磁钢板的制造方法中，应变速率的150s以下的低应变率冷轧进行至少一次以上的步骤的总压下率为50％以下的冷轧。版权所有（C）2012，JPO＆INPIT

45. 发明专利

JP2012001752A Annealing separating-agent and method for producing grain-oriented magnetic steel sheet 有权
标题翻译：退火分离剂和生产面向磁性钢板的方法
公开(公告)号：JP2012001752A
公开(公告)日：2012-01-05
申请号：JP2010136295
申请日：2010-06-15
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： TERAJIMA TAKASHI , OKUBO TOMOYUKI
IPC分类号： C23C22/00 , C21D8/12 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/34 , C22C38/60
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To solve a problem, in which the inner peripheral shape of a coil, especially in the sideway-placing state, is deformed by devising an annealing separating-agent.SOLUTION: As the annealing separating-agent for a grain-oriented magnetic steel sheet essentially consisting of magnesia and also having a volume-shrinking ratio of 20 to 80%, the one obtained by incorporating an yttrium compound of 0.0005 to 0.01 mass% expressed in terms of YOinto the annealing separating-agent is used.
摘要翻译：要解决的问题为了解决特别是侧向放置状态的线圈的内周形状通过设计退火分离剂而变形的问题。解决方案：作为基本由氧化镁组成并且体积收缩率为20〜80％的晶粒取向电磁钢板的退火分离剂，通过掺入0.0005〜0.01质量％的钇化合物使用以退火分离剂Y 2 表示的％。版权所有（C）2012，JPO＆INPIT

46. 发明专利

JP2011111645A Method for producing grain-oriented magnetic steel sheet 有权
标题翻译：生产面向磁性钢板的方法
公开(公告)号：JP2011111645A
公开(公告)日：2011-06-09
申请号：JP2009268283
申请日：2009-11-26
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： OKUBO TOMOYUKI , WATANABE MAKOTO , TAKASHIMA MINORU
IPC分类号： C21D9/46 , B21B3/02 , C21D8/12 , C22C38/00 , C22C38/60 , H01F1/16
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a technique for producing a grain-oriented magnetic steel sheet excellent in coating film properties. SOLUTION: When the grain-oriented magnetic steel sheet is produced by hot-rolling a steel slab containing, by mass, 0.02-0.10% C, 2.0-4.0% Si, 0.002-0.2% Cu and 0.01-0.08% one or both kinds of S and Se, carrying out annealing of the hot-rolled steel sheet, cold-rolling the steel sheet at two or more times including the intermediate annealing, and decarburizing-annealing and finish-annealing the steel sheet, PH 2 O/PH 2 in the heating zone at the intermediate annealing before the final cold-rolling is controlled to 0.01-0.2, a soaking zone is made a non-oxidizing atmosphere and further, when necessary, pickling and/or grinding are performed. Then, the desiliconized depth of the steel sheet surface before the final cold-rolling is made deeper than X(μm) obtained from following formula: X(μm)=61.7[Cu] 2 -23.5[Cu]+3.2 (wherein, [Cu] is Cu content (mass%) in base iron) and basis weight of oxigen on the steel sheet surface is adjusted to ≤0.6g/m 2 per both surfaces. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造涂膜性能优异的晶粒取向电磁钢板的技术。解决方案：当通过热轧含有质量为0.02-0.10％C，2.0-4.0％Si，0.002-0.2％Cu和0.01-0.08％一种Cu的钢板来制造晶粒取向电磁钢板时或两种S和Se，进行热轧钢板的退火，对钢板进行中间退火两次以上的冷轧，对钢板进行脱碳退火和最终退火，PH O / PH 2 控制在0.01-0.2，使均热区成为非氧化性气氛，必要时进行酸洗和/或研磨。然后，最终冷轧前的钢板表面的脱硅深度比由下式得到的X（μm）更深：X（μm）= 61.7 [Cu] 2 -23.5 [Cu ] +3.2（其中，[Cu]是铁中的Cu含量（质量％）），钢板表面的氧原子的单位面积被调整为每个表面≤0.6g/ m 2＆lt; SP＆gt; 2＆lt; / SP＆gt;。版权所有（C）2011，JPO＆INPIT

47. 发明专利

JP2010249616A Method for indirectly measuring coat tension of directional electromagnetic steel plate 有权
标题翻译：方向电磁钢板的间距测量方法
公开(公告)号：JP2010249616A
公开(公告)日：2010-11-04
申请号：JP2009098374
申请日：2009-04-14
申请人： Jfe Steel Corp , Jfeスチール株式会社
发明人： HAYAKAWA YASUYUKI , OKUBO TOMOYUKI
IPC分类号： G01L1/12 , C22C38/00 , C22C38/60 , C23C22/00 , G01L1/00 , H01F1/16 , H01F1/18 , H01F41/00
摘要： PROBLEM TO BE SOLVED: To provide a method for precisely and simply measuring a coat tension of a directional electromagnetic steel plate. SOLUTION: A relation between a magnetizing force in a prescribed excitation flux density in a direction perpendicular to a rolling direction of the directional electromagnetic steel plate and a coat tension applied to a surface of the plate, is obtained previously, and a magnetizing force in the direction perpendicular to the rolling direction of the directional electromagnetic steel plate being a coat tension measurement subject, is measured, and the coat tension is derived on the basis of the relation. COPYRIGHT: (C)2011,JPO&INPIT

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