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公开(公告)号：US10020103B2
公开(公告)日：2018-07-10
申请号：US13824722
申请日：2011-09-28
申请人： Makoto Watanabe , Seiji Okabe , Toshito Takamiya
发明人： Makoto Watanabe , Seiji Okabe , Toshito Takamiya
CPC分类号： H01F3/02 , C21D8/1283 , C22C38/04 , C22C38/34 , C23C22/33 , C23C22/74 , H01F1/18 , Y10T428/24545
摘要： A grain oriented electrical steel sheet reduces local exfoliation of insulating coating films and thus has excellent corrosion resistance and insulation properties. The grain oriented electrical steel sheet may be obtained by, assuming that a1 (μm) is a film thickness of the insulating coating at the floors of linear grooves and a2 (μm) is a film thickness of the insulating coating on a surface of the steel sheet at portions other than the linear grooves, controlling a1 and a2 to satisfy the following formulas (1) and (2): 0.3 μm≤a2≤3.5 μm (1), and a1/a2≤2.5 (2).
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公开(公告)号：US20130189490A1
公开(公告)日：2013-07-25
申请号：US13824722
申请日：2011-09-28
申请人： Makoto Watanabe , Seiji Okabe , Toshito Takamiya
发明人： Makoto Watanabe , Seiji Okabe , Toshito Takamiya
IPC分类号： H01F3/02
CPC分类号： H01F3/02 , C21D8/1283 , C22C38/04 , C22C38/34 , C23C22/33 , C23C22/74 , H01F1/18 , Y10T428/24545
摘要： A grain oriented electrical steel sheet reduces local exfoliation of insulating coating films and thus has excellent corrosion resistance and insulation properties. The grain oriented electrical steel sheet may be obtained by, assuming that a1 (μm) is a film thickness of the insulating coating at the floors of linear grooves and a2 (μm) is a film thickness of the insulating coating on a surface of the steel sheet at portions other than the linear grooves, controlling a1 and a2 to satisfy the following formulas (1) and (2): 0.3 μm≦a2≦3.5 μm (1), and a1/a2≦2.5 (2).
摘要翻译： 晶粒取向电工钢板减少了绝缘涂膜的局部剥落，因此具有优异的耐腐蚀性和绝缘性能。 晶粒取向电工钢板可以通过以下方式获得：假设a1（mum）是线性槽的地板处的绝缘涂层的膜厚，a2（mum）是钢的表面上的绝缘涂层的膜厚度 片材在线性槽以外的部分，控制a1和a2满足下列公式（1）和（2）：0.3μm@ a2 @ 3.5mum（1）和a1/a2@2.5（2）。
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公开(公告)号：US20130177743A1
公开(公告)日：2013-07-11
申请号：US13824660
申请日：2011-09-27
申请人： Makoto Watanabe , Seiji Okabe , Toshito Takamiya
发明人： Makoto Watanabe , Seiji Okabe , Toshito Takamiya
IPC分类号： H01F1/18
CPC分类号： H01F1/18 , C21D8/1255 , C21D8/1288 , C21D2201/05 , C22C38/04 , C22C38/34 , C23C22/33 , C23C22/73 , C23F17/00 , H01F3/02 , Y10T428/2457
摘要： A grain oriented electrical steel sheet keeps iron loss at a low level when assembled as an actual transformer and has excellent iron loss properties as an actual transformer, in which a film thickness a1 (μm) of insulating coating at the floors of linear grooves, a film thickness a2 (μm) of the insulating coating on a surface of the steel sheet at portions other than the linear grooves, and a depth a3 (μm) of the linear grooves are controlled to satisfy formulas (1) and (2): 0.3 μm≦a2≦3.5 μm (1), and a2+a3−a1≦15 μm (2).
摘要翻译： 晶粒取向电工钢板在组装为实际变压器时将铁损保持在低水平，并且具有优异的作为实际变压器的铁损性能，其中在线性槽的地板上的绝缘涂层的膜厚度a1（母体）， 在线性槽以外的部分，钢板表面上的绝缘涂层的膜厚a2（mum）和直线槽的深度a3（母）被控制为满足公式（1）和（2）：0.3 mum @ a2 @ 3.5mum（1）和a2 + a3-a1 @ 15mum（2）。
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4.发明授权公开(公告)号：US09406437B2
公开(公告)日：2016-08-02
申请号：US13814532
申请日：2011-08-05
申请人： Takeshi Omura , Hirotaka Inoue , Hiroi Yamaguchi , Seiji Okabe
发明人： Takeshi Omura , Hirotaka Inoue , Hiroi Yamaguchi , Seiji Okabe
IPC分类号： H01F41/00 , C22C38/00 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/34 , H01F1/18 , C21D8/12 , B21B3/02
CPC分类号： H01F41/00 , B21B3/02 , C21D8/1255 , C21D8/1272 , C21D8/1283 , C21D8/1288 , C21D8/1294 , C21D9/46 , C22C38/00 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/34 , H01F1/18 , Y10T428/2457 , Y10T428/24612
摘要： A grain oriented electrical steel sheet has thickness of forsterite film at bottom portions of grooves formed on a surface of the steel sheet is ≧0.3 μm, groove frequency is ≦20%, abundance ratio of grooves crystal grains directly beneath themselves, each crystal grain having orientation deviating from Goss orientation by ≧10° and grain size ≧5 μm, total tension exerted on the steel sheet in the rolling direction by the forsterite film and tension coating is ≧10.0 MPa, total tension exerted on the steel sheet in a direction perpendicular to the rolling direction by the forsterite film and tension coating is ≧5.0 MPa and total tension satisfies 1.0≦A/B≦5.0, where A is total tension exerted in rolling direction by forsterite film and tension coating, and B is total tension exerted in direction perpendicular to rolling direction by forsterite film and tension coating.
摘要翻译： 晶粒取向电工钢板在钢板表面形成的槽的底部的镁橄榄石膜的厚度为≥0.3μm，槽频率≤20％，自身下方的槽晶粒的丰度比，各晶粒具有 从高斯取向偏离≧10°并且晶粒尺寸≥5μm的方向，通过镁橄榄石膜和张力涂层在轧制方向上施加在钢板上的总张力为≥10MPa，在垂直方向上对钢板施加的总张力 通过镁橄榄石膜的轧制方向，张力涂层为≥5.0MPa，总张力满足1.0≤A/B≤5.0，其中A是通过镁橄榄石膜和张力涂层在轧制方向上施加的总张力，B是施加在 通过镁橄榄石膜和张力涂层垂直于轧制方向的方向。
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5.发明授权公开(公告)号：US09346123B2
公开(公告)日：2016-05-24
申请号：US13806926
申请日：2011-06-29
申请人： Seiji Okabe , Hiroi Yamaguchi , Takeshi Omura
发明人： Seiji Okabe , Hiroi Yamaguchi , Takeshi Omura
IPC分类号： B23K26/00 , B23K26/08 , C21D8/12 , C21D10/00 , C22C38/00 , C22C38/04 , C22C38/60 , C22C38/02 , C22C38/08 , C22C38/12 , C22C38/16 , C22C38/18
CPC分类号： B23K26/0846 , B23K26/00 , B23K2101/16 , B23K2103/04 , C21D8/12 , C21D8/1272 , C21D8/1294 , C21D10/00 , C21D2201/05 , C22C38/00 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/16 , C22C38/18 , C22C38/60
摘要： A device reduces dust for safely preventing laser-irradiation capacity from decreasing due to contamination and reliably reducing iron loss of a grain oriented electrical steel sheet. The device improves iron loss properties of a grain oriented electrical steel sheet by irradiating its surface with laser to reduce iron loss, wherein, distance between a laser beam emission port and a laser irradiation point is L (mm); laser irradiation angle formed by a line linking the emission port and the irradiation point with respect to a direction vertical to the sheet is θ (°); and L≧50, the emission port is positioned such that L and θ satisfy: 60−0.3L≦θ≦60 when L≦100; 40−0.1L≦θ≦60 when 100 400.
摘要翻译： 装置减少灰尘，以安全地防止激光照射能力由于污染而降低，并可靠地降低了取向电工钢板的铁损。 该装置通过用激光照射其表面来改善晶粒取向电工钢板的铁损性能，以减少铁损，其中激光束射出口和激光照射点之间的距离为L（mm）; 由连接发射口和照射点的线相对于与片材垂直的方向形成的激光照射角是＆amp; （°）; L≥50，排放口定位成L和＆amp; t; 满足：60-0.3L＆nlE;＆thetas;＆nlE; 60当L＆nlE; 100; 40-0.1L＆nlE;＆thetas;＆nlE; 60当100
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6.发明申请公开(公告)号：US20130206283A1
公开(公告)日：2013-08-15
申请号：US13814115
申请日：2011-08-05
申请人： Hirotaka Inoue , Hiroi Yamaguchi , Seiji Okabe , Takeshi Omura
发明人： Hirotaka Inoue , Hiroi Yamaguchi , Seiji Okabe , Takeshi Omura
CPC分类号： H01F1/01 , C21D1/38 , C21D8/12 , C21D8/1277 , C21D8/1283 , C21D2201/05 , C22C38/00 , C22C38/04 , C22C38/34 , H01F1/16 , H01F41/02
摘要： A grain oriented electrical steel sheet has thermal strain introduced thereinto in a dotted-line arrangement in which strain-imparted areas are lined in a direction that crosses a rolling direction of the steel sheet, wherein the strain-imparted areas introduced in the dotted-line arrangement have a size from 0.10 mm or more to 0.50 mm or less and an interval between the adjacent strain-imparted areas is from 0.10 mm or more to 0.60 mm or less.
摘要翻译： 晶粒取向电工钢板以引线方式引入热应变，其中应变赋予区域沿与钢板的轧制方向交叉的方向排列，其中引入虚线的应变赋予区域 排列的尺寸为0.10mm以上且0.50mm以下，相邻的应变赋予区域的间隔为0.10mm以上且0.60mm以下。
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公开(公告)号：US20130160901A1
公开(公告)日：2013-06-27
申请号：US13821608
申请日：2011-09-09
IPC分类号： H01F1/01
CPC分类号： C22C38/00 , C21D8/12 , C21D8/1233 , C21D8/1277 , C21D8/1283 , C21D2201/05 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/34 , C22C38/60 , H01F1/16
摘要： A grain oriented electrical steel sheet has linear grooves for magnetic domain refinement formed on a surface thereof and may reduce iron loss by using these linear grooves, where the proportion of those linear grooves having crystal grains directly beneath themselves, each crystal grain having an orientation deviating from the Goss orientation by 10° or more and a grain size of 5 μm or more, is controlled to 20% or less, and secondary recrystallized grains are controlled to have an average β angle of 2.0° or less, and each secondary recrystallized grain having a grain size of 10 mm or more is controlled to have an average β-angle variation of 1° to 4°.
摘要翻译： 晶粒取向电工钢板在其表面上形成有磁畴细化的线性沟槽，并且可以通过使用这些线性沟槽来减少铁损，其中具有晶粒直径的那些直线槽的比例在其自身下方，每个晶粒的取向偏离 从高斯取向10°以上，粒径5μm以上，控制在20％以下，二次再结晶晶粒的平均β角为2.0°以下，二次再结晶晶粒 粒径为10mm以上的粒径被控制为具有1°至4°的平均β角度变化。
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公开(公告)号：US20130129985A1
公开(公告)日：2013-05-23
申请号：US13814675
申请日：2011-08-05
申请人： Hirotaka Inoue , Takeshi Omura , Hiroi Yamaguchi , Seiji Okabe
发明人： Hirotaka Inoue , Takeshi Omura , Hiroi Yamaguchi , Seiji Okabe
IPC分类号： H01F41/00
CPC分类号： H01F41/00 , C21D8/1216 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/60 , C23C26/00 , C23C30/00 , H01F1/18 , Y10T428/2457 , Y10T428/24612
摘要： A grain oriented electrical steel sheet may reduce iron loss of material with linear grooves formed thereon for magnetic domain refinement and offer excellent low iron loss properties when assembled as an actual transformer, where the steel sheet has sheet thickness of 0.30 mm or less, linear grooves are formed at intervals of 2-10 mm in the rolling direction, the depth of each of the linear grooves is 10 μm or more, the thickness of the forsterite film at bottom portions of the linear grooves is 0.3 μm or more, total tension applied to the steel sheet by the forsterite film and tension coating is 10.0 MPa or higher in rolling direction, and the proportion of eddy current loss in iron loss W17/50 of the steel sheet is 65% or less when alternating magnetic field of 1.7 T and 50 Hz is applied to the steel sheet in the rolling direction.
摘要翻译： 晶粒取向电工钢板可以减少形成在其上的线性槽的铁损，用于磁畴细化，并且当作为实际变压器组装时提供优异的低铁损性能，其中钢板具有0.30mm或更小的板厚度，线性槽 在轧制方向上以2-10mm的间隔形成，每个直线槽的深度为10μm以上，直线槽底部的镁橄榄石膜的厚度为0.3μm以上，施加总张力 通过镁橄榄石膜和钢板的拉伸强度在轧制方向为10.0MPa以上，钢板的铁损W17 / 50的涡电流损失比例为1.7T以下的交变磁场时的65％以下 在轧制方向上对钢板施加50Hz。
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公开(公告)号：US06811619B2
公开(公告)日：2004-11-02
申请号：US10202117
申请日：2002-07-23
申请人： Yasuyuki Hayakawa , Hideo Yamagami , Seiji Okabe , Takeshi Imamura , Minoru Takashima , Mitsumasa Kurosawa
发明人： Yasuyuki Hayakawa , Hideo Yamagami , Seiji Okabe , Takeshi Imamura , Minoru Takashima , Mitsumasa Kurosawa
IPC分类号： H01F116
CPC分类号： C22C38/60 , C21D8/1233 , C21D8/125 , C21D8/1255 , C21D8/1272 , C21D8/1283 , C22C38/004 , C22C38/02
摘要： A method of manufacturing a grain-oriented steel sheet including hot-rolling a slab prepared using molten steel containing, by mass %, C of not more than about 0.08%, Si of about 2.0 to about 8.0% and Mn of about 0.005 to about 3.0%; optionally annealing the hot-rolled steel sheet; performing cold rolling once, or twice or more with intermediate annealing therebetween; performing primary recrystallization annealing in a low- or non-oxidizative atmosphere and adjusting the C content in the steel sheet after primary recrystallization annealing to be held in the range of about 0.005 to about 0.025 mass %; performing secondary recrystallization annealing; decarburization annealing; and, preferably, performing additional high-temperature continuous or batch annealing. A grain-oriented electrical steel sheet having a sufficiently high magnetic flux density and a low iron loss can be advantageously obtained even when it is manufactured without using an inhibitor.
摘要翻译： 一种制造含有热轧钢板的方法，该方法包括以质量％计含有不大于约0.08％的Si，约2.0至约8.0％的Si和约0.005至约 3.0％; 任选地退火热轧钢板; 在其间进行中间退火，进行一次或两次以上的冷轧; 在低或非氧化性气氛中进行一次再结晶退火，并将一次再结晶退火后的钢板中的C含量调整为约0.005〜约0.025质量％的范围; 进行二次再结晶退火; 脱碳退火; 并且优选进行附加的高温连续或间歇退火。 即使在不使用抑制剂的情况下制造也可以有利地获得具有足够高的磁通密度和低铁损的晶粒取向电工钢板。
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公开(公告)号：US5456308A
公开(公告)日：1995-10-10
申请号：US193444
申请日：1994-02-08
申请人： Masao Yukumoto , Hiroshi Yamane , Seiji Okabe , Masanao Midorikawa , Kenzo Ohsu
发明人： Masao Yukumoto , Hiroshi Yamane , Seiji Okabe , Masanao Midorikawa , Kenzo Ohsu
CPC分类号： B22D11/0611 , B22D11/0697
摘要： A method and apparatus for manufacturing a thin amorphous metal strip. Molten metal is injected onto a single cooling roll rotating at high speed. A gas flow impeding wall is disposed adjacent to the surface of a cooling roll and extends across the body of the cooling roll. The wall is located upstream of the molten metal injection nozzle. CO.sub.2 gas is jetted along one surface of the gas insulating wall which faces the molten metal injection nozzle and toward the surface of the cooling roll. An atmosphere rich in CO.sub.2 gas is maintained adjacent the roll surface just upstream of the molten metal injection nozzle.
摘要翻译： 一种用于制造薄无定形金属条的方法和装置。 将熔融金属注入到以高速旋转的单个冷却辊上。 气体阻流壁邻近冷却辊的表面设置并延伸穿过冷却辊的主体。 该壁位于熔融金属注射喷嘴的上游。 CO 2气体沿着与熔融金属注入喷嘴相对的气体绝缘壁的一个表面朝向冷却辊的表面喷射。 在熔融金属注入喷嘴正上游的辊表面附近保持富含CO 2气体的气氛。
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