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公开(公告)号：EP2957644B1
公开(公告)日：2020-06-03
申请号：EP14752108.2
申请日：2014-02-12
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公开(公告)号：EP2878687A1
公开(公告)日：2015-06-03
申请号：EP13822382.1
申请日：2013-07-25
CPC分类号： C21D9/46 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1266 , C21D8/1272 , C21D8/1283 , C21D2201/05 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/16 , C22C38/34 , C22C38/40 , C22C38/60 , H01F1/14775 , H01F1/16
摘要： In a method for producing a grain-oriented electrical steel sheet by comprising a series of steps of hot rolling a raw steel material containing C: 0.002~0.10 mass%, Si: 2.0~8.0 mass% and Mn: 0.005~1.0 mass% to obtain a hot rolled sheet, subjecting the hot rolled steel sheet after or without hot band annealing to one stage cold rolling or two or more stage cold rollings including an intermediate annealing therebetween to obtain a cold rolled sheet having a final sheet thickness, subjecting the cold rolled sheet to decarburization annealing combined with primary recrystallization annealing, applying an annealing separator to the steel sheet surface and then subjecting to a final annealing, when rapid heating is performed at a rate of not less than 50°C/s in a range of 200~700°C of the decarburization annealing, the cold rolled sheet is subjected to holding at any temperature of 250~600°C for 1~10 seconds thereof to thereby produce a grain-oriented electrical steel sheet being low in the iron loss and small in the deviation of the iron loss value.
摘要翻译： 1.一种方向性电磁钢板的制造方法，其特征在于，对含有C：0.002〜0.10质量％，Si：2.0〜8.0质量％，Mn：0.005〜1.0质量％的原料钢材进行热轧的一系列工序 获得热轧板，在热带退火或不经过热轧带钢退火的情况下对其进行一级冷轧或包括其间的中间退火的两级或更多级冷轧，以获得具有最终板厚的冷轧板， 当在200℃以上的范围内以50℃/ s以上的速度进行快速加热时，通过将退火分离剂涂布在钢板表面上，然后实施最终退火，从而进行脱碳退火并进行一次再结晶退火 在脱碳退火的〜700℃下，将该冷轧板在250〜600℃的任意温度下保持1〜10秒钟，制作低取向的取向性电磁钢板 铁损和铁损值偏差较小。
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公开(公告)号：EP2878688B1
公开(公告)日：2019-07-03
申请号：EP13822589.1
申请日：2013-07-25
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4.发明公开
公开(公告)号：EP3476976A1
公开(公告)日：2019-05-01
申请号：EP17850804.0
申请日：2017-09-08
摘要： The present invention provides grain-oriented magnetic steel sheets that have a chromium-free insulating tension coating with excellent moisture absorption resistance and coating tension, and methods for producing such steel sheets.
A grain-oriented magnetic steel sheet with chromium-free insulating tension coating includes a grain-oriented magnetic steel sheet and an insulating tension coating containing a phosphate salt and silica on a surface of the grain-oriented magnetic steel sheet, the coating further including a crystalline compound represented by the general formula (1) : M II 3 M III 4 (X v O 4 ) 6 ··· (1). In the formula (1), M II and M III are each independently one, or two or more selected from Sc, Ti, V, Mn, Fe, Co, Ni, Cu and Mg, and X V is one, or two or more selected from P, V and Mo. A method for producing a grain-oriented magnetic steel sheet with chromium-free insulating tension coating includes applying an insulating tension coating liquid to a surface of a finish annealed grain-oriented magnetic steel sheet, the coating liquid including colloidal silica, a phosphate salt and a metal element M-containing compound in a specific ratio, and heat treating the steel sheet at least one time at a temperature of not less than 900°C in an atmosphere including a non-oxidizing gas and having a dew point of not more than 0°C.-
5.发明公开INSULATION-COATED ORIENTED MAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING SAME 审中-公开隔离涂层取向的磁性钢板及其制造方法
公开(公告)号：EP3276011A1
公开(公告)日：2018-01-31
申请号：EP16772206.5
申请日：2016-03-11
摘要： Provided are an insulation-coated oriented magnetic steel sheet having an insulating coat with excellent heat resistance; and a method for manufacturing the same. This insulation-coated oriented magnetic steel sheet has an oriented magnetic steel sheet, and an insulating coat arranged on the surface of the oriented magnetic steel sheet, the insulating coat containing Si, P, O, and Cr, and at least one element selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn. The XPS spectrum of the outermost surface of the insulating coat has peaks observed at Cr2p 1/2 and Cr2p 3/2 .
摘要翻译： 本发明提供具有绝缘被膜的耐热性优异的绝缘被覆取向电磁钢板， 及其制造方法。 该绝缘被覆取向电磁钢板具有取向电磁钢板和配置在该取向电磁钢板表面上的绝缘被膜，该被覆电绝缘被膜包含Si，P，O和Cr，以及选自 由Mg，Ca，Ba，Sr，Zn，Al和Mn组成的组。 绝缘涂层的最外表面的XPS谱在Cr2p1 / 2和Cr2p3 / 2处观察到峰。
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公开(公告)号：EP2878687B1
公开(公告)日：2017-12-13
申请号：EP13822382.1
申请日：2013-07-25
CPC分类号： C21D9/46 , C21D6/004 , C21D6/005 , C21D6/008 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1266 , C21D8/1272 , C21D8/1283 , C21D2201/05 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/16 , C22C38/34 , C22C38/40 , C22C38/60 , H01F1/14775 , H01F1/16
摘要： In a method for producing a grain-oriented electrical steel sheet by comprising a series of steps of hot rolling a raw steel material containing C: 0.002~0.10 mass%, Si: 2.0~8.0 mass% and Mn: 0.005~1.0 mass% to obtain a hot rolled sheet, subjecting the hot rolled steel sheet after or without hot band annealing to one stage cold rolling or two or more stage cold rollings including an intermediate annealing therebetween to obtain a cold rolled sheet having a final sheet thickness, subjecting the cold rolled sheet to decarburization annealing combined with primary recrystallization annealing, applying an annealing separator to the steel sheet surface and then subjecting to a final annealing, when rapid heating is performed at a rate of not less than 50°C/s in a range of 200~700°C of the decarburization annealing, the cold rolled sheet is subjected to holding at any temperature of 250~600°C for 1~10 seconds thereof to thereby produce a grain-oriented electrical steel sheet being low in the iron loss and small in the deviation of the iron loss value.
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公开(公告)号：EP2963131A1
公开(公告)日：2016-01-06
申请号：EP14756232.6
申请日：2014-02-24
CPC分类号： H01F1/14775 , C21D1/26 , C21D3/04 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1266 , C21D8/1272 , C21D8/1283 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/16 , C22C38/34 , C22C38/40 , C22C38/60 , H01F1/16 , H01F41/02
摘要： In a method for producing a grain-oriented electrical steel sheet by hot rolling a raw steel material containing C: 0.002∼0.10 mass%, Si: 2.0∼8.0 mass% and Mn: 0.005∼1.0 mass% to obtain a hot rolled sheet, subjecting the hot rolled sheet to a hot band annealing as required and further to one cold rolling or two or more cold rollings including an intermediate annealing therebetween to obtain a cold rolled sheet having a final sheet thickness, subjecting the cold rolled sheet to a primary recrystallization annealing combined with decarburization annealing, applying an annealing separator to the steel sheet surface and then subjecting to a final annealing, when rapid heating is performed at a rate of not less than 50°C/s in a range of 100∼700°C in the heating process of the primary recrystallization annealing, the steel sheet is subjected to a holding treatment at any temperature of 250∼600°C for 0.5∼10 seconds 2 to 6 times to thereby obtain a grain-oriented electrical steel sheet being low in the iron loss and small in the deviation of the iron loss value.
摘要翻译： 在通过对含有C：0.002〜0.10质量％，Si：2.0〜8.0质量％，Mn：0.005〜1.0质量％的原料钢材进行热轧而制造方向性电磁钢板的方法中， 根据需要对热轧板进行热轧带钢退火，并进一步进行一次冷轧或包括其间的中间退火的两次或多次冷轧，以获得具有最终板厚的冷轧板，对该冷轧板进行一次再结晶 在100℃〜700℃的范围内以50℃/ s以上的速度进行快速加热的情况下，对钢板表面实施退火分离剂后，实施最终退火， 在一次再结晶退火的加热过程中，钢板在250〜600℃的任意温度下进行2〜6次的保持处理0.5〜10秒，得到晶粒取向电工钢 l片材铁损低，铁损值偏差小。
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8.发明公开METHOD FOR PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEET 审中-公开VERFAHREN ZUR HERSTELLUNG EINES KORNORIENTIERTEN ELEKTROSTAHLBLECHS
公开(公告)号：EP2957644A1
公开(公告)日：2015-12-23
申请号：EP14752108.2
申请日：2014-02-12
摘要： In a method for producing a grain-oriented electrical steel sheet by comprising a series of steps of hot rolling a raw steel material comprising C: 0.002-0.10 mass%, Si: 2.0-8.0 mass%, and Mn: 0.005-1.0 mass%, subjecting the steel sheet to a hot band annealing as required, cold rolling to obtain a cold rolled sheet having a final sheet thickness, subjecting the steel sheet to primary recrystallization annealing combined with decarburization annealing, applying an annealing separator to the steel sheet surface and then subjecting to final annealing, rapid heating is performed at a rate of not less than 50°C/s in a region of 200-700°C in the heating process of the primary recrystallization annealing, and the steel sheet is held at any temperature of 250-600°C in the above region for 1-10 seconds, while a soaking process of the primary recrystallization annealing is controlled to a temperature range of 750-900°C, a time of 90-180 seconds and P H2O /P H2 in an atmosphere of 0.25-0.40, whereby a grain-oriented electrical steel sheet being low in the iron loss and small in the deviation of the iron loss value is obtained.
摘要翻译： 在通过包括C：0.002〜0.10质量％，Si：2.0〜8.0质量％，Mn：0.005〜1.0质量％的原料钢的热轧的一系列工序的制造方法中， 根据需要对钢板进行热带退火，进行冷轧，得到具有最终板厚的冷轧板，对钢板进行一次再结晶退火与脱碳退火相结合，向钢板表面涂布退火分离剂， 然后进行最终退火，在一次再结晶退火的加热过程中，在200-700℃的区域内以不低于50℃/ s的速率进行快速加热，并且钢板保持在任何温度 在上述区域中为250-600℃，持续1-10秒，同时将一次再结晶退火的均热处理控制在750-900℃的温度范围内，90〜180秒的时间和P H 2 O / P H2在0.25-0.40的气氛中， 得到铁损低，铁损值偏差小的方向性电磁钢板。
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公开(公告)号：EP4407051A1
公开(公告)日：2024-07-31
申请号：EP22898421.7
申请日：2022-11-10
摘要： To suppress ridging in a process using thin slabs, ridging being a problem when handling steel containing a large amount of Si, Al, Mn alloying elements. A method of producing a hot-rolled steel sheet for a non-oriented electrical steel sheet includes: a continuous casting process of producing a steel slab by continuous casting, the steel slab having a defined chemical composition and a thickness of 50 mm or more and 200 mm or less; a transfer process of transferring the steel slab to a furnace while maintaining a surface temperature of the steel slab at 800 °C or more; a hold process of holding the steel slab in the furnace under a set of conditions including a hold temperature of 1100 °C or more to 1300 °C or less and a hold time of 60 s or more; and a hot rolling process of subjecting the steel slab to rough rolling, reheating treatment, and finish rolling in sequence to obtain a hot-rolled steel sheet, wherein the hot rolling process is performed under a set of conditions satisfying (1) and (2) below:
(1) total rolling reduction of the rough rolling: 80 % or more, and
(2) total rolling reduction of the finish rolling: 80 % or more.-
公开(公告)号：EP3276011B1
公开(公告)日：2020-10-28
申请号：EP16772206.5
申请日：2016-03-11
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