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1.发明公开PROCESS FOR PRODUCING GRAIN-ORIENTED MAGNETIC STEEL SHEET, GRAIN-ORIENTED MAGNETIC STEEL SHEET FOR WOUND CORE, AND WOUND CORE 审中-公开FOR粮食生产方法方向性电磁钢板，晶粒取向电磁钢板用于频带以及频带核心CORE
公开(公告)号：EP2412831A4
公开(公告)日：2017-05-03
申请号：EP10756014
申请日：2010-03-19
发明人： MORISHIGE NOBUSATO , MURAKAMI KENICHI , HONMA HOTAKA , KUBO YUJI , MIZUKAMI KAZUMI , TANAKA KOKI , TAKEBAYASHI SEIKI
IPC分类号： C21D8/12 , B21B3/02 , C21D9/46 , C22C1/00 , C22C38/00 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/60 , H01F1/16 , H01F27/25 , H01F41/02
CPC分类号： C21D8/1222 , B21B3/02 , C21D8/1233 , C21D8/1255 , C21D8/1272 , C21D2201/05 , C22C1/002 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/60 , H01F1/16 , H01F41/0233
摘要： A slab having a predetermined composition is heated to 1280°C or more. The slab is hot-rolled to obtain a hot-rolled steel sheet. The hot-rolled steel sheet is annealed to obtain an annealed steel sheet. The annealed steel sheet is cold-rolled to obtain a cold-rolled steel sheet. The cold-rolled steel sheet is decarburization annealed to obtain a decarburization annealed steel sheet. The decarburization annealed steel sheet is coiled in a coil state. The coil-state decarburization annealed steel sheet is finish-annealed. The cold-rolled steel sheet is heated to a temperature of 800°C or more at a rate of 30°C/sec or more and 100°C/sec or less during increasing temperature of the cold-rolled steel sheet in the decarburization annealing or before the decarburization annealing. The decarburization annealed steel sheet is heated at a rate of 20°C/h or less within a temperature range of 750°C or more and 1150°C or less during increasing temperature of the decarburization annealed steel sheet in the finish annealing.
摘要翻译： 具有规定组成的钢坯加热至1280℃以上。 板坯进行热轧，得到热轧钢板。 的热轧钢板进行退火，以获得关于退火钢板。 经退火的钢薄板进行冷轧，得到冷轧钢板。 的冷轧钢板脱碳退火，得到脱碳退火钢板。 脱碳退火后的钢板是在线圈状态卷绕。 退火后的钢板的线圈状态的脱碳是最终退火。 的冷轧钢板在脱碳退火增加冷轧钢板的温度时，在30℃/秒以上且100℃/秒或更低的速率加热至800℃或更高的温度 或脱碳退火之前。 脱碳退火后的钢板在成品退火增大脱碳退火后的钢板的温度期间，在20℃/小时或更低的温度范围内的750℃以上且1150℃以下的范围内的速率加热。
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公开(公告)号：EP2537946A4
公开(公告)日：2014-05-07
申请号：EP11744741
申请日：2011-02-18
IPC分类号： C21D8/12 , C21D3/04 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , C22C38/34 , C23C8/02 , C23C8/80 , H01F1/16
CPC分类号： C21D8/12 , C21D3/04 , C21D9/46 , C22C33/04 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/16 , C22C38/34 , C23C8/02 , C23C8/80 , H01F1/16
摘要： Hot rolling is performed on a steel with a predetermined composition containing Ti: 0.0020 mass% to 0.010 mass% and/or Cu: 0.010 mass% to 0.50 mass% to obtain a hot-rolled steel sheet. Annealing is performed on the hot-rolled steel sheet to obtain an annealed steel sheet. Cold rolling is performed on the annealed steel sheet to obtain a cold-rolled steel sheet. Decarburization annealing and nitridation annealing are performed on the cold-rolled steel sheet to obtain a decarburized nitrided steel sheet. Then, finish annealing is performed on the decarburized nitrided steel sheet. When obtaining the decarburized nitrided steel sheet, heating on the cold-rolled steel sheet is started in a decarburizing and nitriding atmosphere, then first annealing is performed at a first temperature within a predetermined range, and then second annealing is performed at a second temperature within a predetermined range.
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公开(公告)号：EP3196325A4
公开(公告)日：2018-03-28
申请号：EP15838897
申请日：2015-08-13
IPC分类号： C22C38/00 , B22D11/00 , B32B15/18 , C21D8/12 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , H01F1/147 , H01F1/16 , H01F1/18
CPC分类号： C21D8/1222 , B22D11/001 , B32B15/18 , C21D8/12 , C21D8/1233 , C21D8/1272 , C21D8/1283 , C21D9/46 , C21D2201/05 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , H01F1/16
摘要： A grain-oriented electrical steel sheet includes a steel layer and an insulation coating arranged in directly contact with the steel layer thereon. The steel layer includes, as a chemical composition, by mass%, 2.9 to 4.0% of Si, 2.0 to 4.0% of Mn, 0 to 0.20% of Sn, and 0 to 0.20% of Sb. In the steel layer, a silicon content and a manganese content expressed in mass% satisfy 1.2% ‰¤ Si - 0.5 × Mn ‰¤ 2.0%, and a tin content and an antimony content expressed in mass% satisfy 0.005% ‰¤ Sn + Sb ‰¤ 0.20%.
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4.发明公开MANUFACTURING METHOD FOR GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET 审中-公开HERSTELLUNGSVERFAHRENFÜREIN KORNORIENTIERTES ELEKTROMAGNETISCHES STAHLBLECH
公开(公告)号：EP2537947A4
公开(公告)日：2017-07-26
申请号：EP11744742
申请日：2011-02-18
IPC分类号： C21D8/12 , C21D3/04 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/14 , C22C38/16 , C22C38/34 , C23C8/02 , C23C8/80 , H01F1/16
CPC分类号： C21D9/46 , C21D3/04 , C21D8/12 , C21D8/1255 , C21D8/1272 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/16 , C22C38/34 , C23C8/02 , C23C8/80 , H01F1/16
摘要： Hot rolling is performed on a steel with a predetermined composition containing Ti: 0.0020 mass% to 0.010 mass% and/or Cu: 0.010 mass% to 0.50 mass% to obtain a hot-rolled steel sheet. Annealing is performed on the hot-rolled steel sheet to obtain an annealed steel sheet. Cold rolling is performed on the annealed steel sheet to obtain a cold-rolled steel sheet. Decarburization annealing is performed on the cold-rolled steel sheet at a temperature of 800°C to 950°C to obtain a decarburization annealed steel sheet. Then, nitridation treatment is performed on the decarburization annealed steel sheet at 700°C to 850°C to obtain a nitrided steel sheet. Finish annealing is performed on the nitrided steel sheet.
摘要翻译： 对含有Ti：0.0020质量％〜0.010质量％和/或Cu：0.010质量％〜0.50质量％的规定组成的钢进行热轧，得到热轧钢板。 在热轧钢板上进行退火以获得退火钢板。 对退火后的钢板进行冷轧，得到冷轧钢板。 对800℃〜950℃的冷轧钢板实施脱碳退火，得到脱碳退火钢板。 然后，在700-850℃对脱碳退火钢板进行氮化处理，得到渗氮钢板。 在氮化钢板上进行最终退火。
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公开(公告)号：EP2548977A4
公开(公告)日：2014-05-21
申请号：EP11756305
申请日：2011-03-15
IPC分类号： C21D8/12 , B21B3/00 , B21B3/02 , C21D3/04 , C21D6/00 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/60 , C23C8/02 , C23C8/80 , H01F1/16 , H01F1/18
CPC分类号： C21D8/1222 , B21B3/00 , B21B3/02 , C21D3/04 , C21D6/008 , C21D8/12 , C21D8/1255 , C21D8/1272 , C21D8/1283 , C21D9/46 , C21D2201/05 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/60 , C23C8/02 , C23C8/80 , H01F1/18
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公开(公告)号：EP3165624A4
公开(公告)日：2017-11-29
申请号：EP15814427
申请日：2015-07-02
IPC分类号： C22C38/00 , C21D8/12 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/54 , C22C38/60 , H01F1/03 , H01F1/16 , H01F41/02 , H02K1/02
CPC分类号： H01F1/0306 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D9/46 , C21D2211/004 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C22C38/54 , C22C38/60 , H01F1/16 , H01F41/0233 , H02K1/02
摘要： A non-oriented magnetic steel sheet includes a specific chemical composition represented by, in mass%: Si: 3.0% to 3.6%; Al : 0.50% to 1.25%; Mn: 0.5% to 1.5%; Sb or Sn or both of them: [Sb] + [Sn] / 2 is 0.0025% to 0.05% where [Sb] denotes an Sb content and [Sn] denotes an Sn content; P: 0.010% to 0.150%; Ni: 0.010% to 0.200%; C: 0.0010% to 0.0040%; and others. The thickness of the non-oriented magnetic steel sheet is 0.15 mm to 0.30 mm. the non-oriented magnetic steel sheet includes magnetic properties represented by, where t denotes a thickness (mm) of the non-oriented magnetic steel sheet: a magnetic flux density B50: "0.2 × t + 1.52" T or more; a magnetic flux density difference ”B50 : 0.08 T or less; core loss W10/50: 0.95 W/kg or less; and core loss W10/400: "20 × t + 7.5" W/kg or less. A ratio of a number of intergranular carbides precipitated in grains relative to a sum of the number of the intergranular carbides and a number of grain boundary carbides precipitated on grain boundaries is 0.50 or less.
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公开(公告)号：EP3141626A4
公开(公告)日：2017-11-22
申请号：EP15788697
申请日：2015-05-08
发明人： ARAI SATOSHI , HAMAMURA HIDEYUKI , MURAKAMI KENICHI , FUJII HIROYASU , KOBAYASHI HIDEYUKI , FUJII NORIKAZU , MIZOKAMI MASATO
IPC分类号： C22C38/00 , B23K26/08 , B23K26/20 , C21D8/12 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/20 , C22C38/40 , C22C38/60 , H01F1/16 , H01F1/18
CPC分类号： B23K26/08 , B23K26/206 , C21D8/1283 , C21D8/1288 , C21D8/1294 , C21D9/46 , C21D2201/05 , C22C38/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/20 , C22C38/40 , C22C38/60 , H01F1/16 , H01F1/18
摘要： A grain-oriented electrical steel sheet includes: a base steel sheet; a primary film formed on a surface of the base steel sheet; and a tension insulation coating formed on a surface of the primary film, in which a magnetic domain control is performed by irradiating the tension insulation coating with a laser from above. When a strip-like sample having a length of 300 mm in a direction parallel to a rolling direction of the grain-oriented electrical steel sheet and a length of 60 mm in a direction parallel to a transverse direction is extracted from the grain-oriented electrical steel sheet, a range from a surface of the tension insulation coating to a depth position of 5 µm toward the base steel sheet side from an interface between the base steel sheet and the primary film is removed by pickling at least one surface of the sample, and a warpage amount of the sample is thereafter measured, the warpage amount satisfies predetermined conditions.
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公开(公告)号：EP2876173A4
公开(公告)日：2016-02-24
申请号：EP12881480
申请日：2012-07-20
CPC分类号： H01F1/14775 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1272 , C21D9/46 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/16 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/32 , C22C38/34 , C22C38/40 , C22C38/60 , C23C8/26 , H01F1/16
摘要： A slab having a desired composition containing Sn: 0.02% to 0.20% and P: 0.010% to 0.080% is used. A finishing temperature of hot rolling is 950°C or lower, hot-rolled sheet annealing is performed at 800°C to 1200°C, a cooling rate from 750°C to 300°C in the hot-rolled sheet annealing is 10°C/second to 300°C/second, and a reduction ratio of cold rolling is 85% or more. A nitridation treatment in which an N content of a decarburization-annealed steel sheet is increased is performed between beginning of decarburization annealing and occurrence of secondary recrystallization in finish annealing.
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公开(公告)号：EP2578706A4
公开(公告)日：2014-06-18
申请号：EP11786548
申请日：2011-05-19
发明人： IWANAGA ISAO , USHIGAMI YOSHIYUKI , FUJII NORIKAZU , YAMAMOTO NORIHIRO , URAGOH MASAHIDE , MURAKAMI KENICHI , HAMA CHIE
IPC分类号： C21D8/12 , B21B3/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/60 , C23C8/00 , C23C8/02 , C23C8/26 , C23C8/80 , H01F1/16
CPC分类号： C23C8/00 , B21B3/02 , C21D8/1255 , C21D8/1272 , C21D8/1283 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C23C8/02 , C23C8/26 , C23C8/80 , H01F1/14775 , H01F1/16
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公开(公告)号：EP2832882A4
公开(公告)日：2015-12-16
申请号：EP13768801
申请日：2013-03-27
发明人： NATORI YOSHIAKI , MURAKAMI KENICHI , WAKISAKA TAKEAKI , MOGI HISASHI , MATSUMOTO TAKUYA , SHONO TOMOJI , TAKASE TATSUYA , TAKAOBUSHI JUNICHI
IPC分类号： C22C38/00 , C21D8/12 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/14 , H01F1/147 , H01F1/18
CPC分类号： H01F3/02 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1266 , C21D8/1272 , C21D2211/004 , C22C38/00 , C22C38/001 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/14 , H01F1/14775 , H01F1/14791 , H01F1/16 , H01F1/18 , H01F41/0233 , Y10T29/49986
摘要： This oriented electrical steel sheet is a non-oriented electrical steel sheet consisting of, in mass%: C: not less than 0.0001% and not more than 0.0040%, Si: more than 3.0% and not more than 3.7%, sol.Al: not less than 0.3% and not more than 1.0%, Mn: not less than 0.5% and not more than 1.5%, Sn: not less than 0.005% and not more than 0.1%, Ti: not less than 0.0001% and not more than 0.0030%, S: not less than 0.0001% and not more than 0.0020%, N: not less than 0.0001% and not more than 0.003%, Ni: not less than 0.001% and not more than 0.2%, P: not less than 0.005% and not more than 0.05%, with a balance consisting of Fe and impurities, in which a resistivity p at room temperature ‰¥ 60 µ©cm, and saturation magnetic flux density Bs at room temperature ‰¥ 1.945T are established, and the components contained satisfy 3.5 ‰¤ Si + (2/3) × sol.Al + (1/5) × Mn ‰¤ 4.25.
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