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公开(公告)号：US20150007908A1
公开(公告)日：2015-01-08
申请号：US14235935
申请日：2012-08-15
IPC分类号： C21D8/12 , C22C38/00 , H01F1/147 , C22C38/04 , C22C38/06 , C22C38/60 , H01F41/00 , C22C38/02
CPC分类号： C21D8/1272 , C21D8/12 , C21D8/1244 , C21D8/1283 , C21D2201/05 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , C22C38/60 , C23C22/33 , C23C22/74 , H01F1/14775 , H01F1/16 , H01F41/00
摘要： In a method of producing a grain-oriented electrical steel sheet by hot-rolling a steel slab of a chemical composition containing C: 0.001˜0.10%, Si: 1.0˜5.0%, Mn: 0.01˜1.0%, at least one of S and Se: 0.01˜0.05% in total, sol. Al: 0.003˜0.050%, N: 0.001˜0.020% by mass, subjecting to cold rolling, a primary recrystallization annealing, application of an annealing separator mainly composed of MgO and a finish annealing, a temperature rising rate S1 between 500˜600° C. in the primary recrystallization annealing is made to not less than 100° C./s and a temperature rising rate S2 between 600˜700° C. is made to 30° C./s˜0.6×S1° C./s, while a total content W (mol %) of an element having an ionic radius of 0.6˜1.3 Å and an attracting force between the ion and oxygen of not more than 0.7 Å−2 included in the annealing separator to MgO is adjusted to satisfy 0.01S2-5.5≦Ln (W)≦0.01S2−4.3 to produce a grain-oriented electrical steel sheet having excellent iron loss properties and coating properties.
摘要翻译： 在通过热轧含有C：0.001〜0.10％，Si：1.0〜5.0％，Mn：0.01〜1.0％的化学成分的钢坯的方法中，S 和Se：0.01〜0.05％，溶胶。 Al：0.003〜0.050％，N：0.001〜0.020质量％，进行冷轧，一次再结晶退火，主要由MgO构成的退火分离装置和最终退火处理，升温速度S1为500〜600度 在一次再结晶退火中，使其在不低于100℃/秒之间，并将600-700℃之间的升温速度S2设定为30℃/秒〜0.6×S1℃/ ，而退火分离器中包含的离子半径为0.6〜0.3的元素和离子与氧之间的吸引力为0.7at以下的总含量W（mol％）被调整为满足 0.01S2-5.5＆nlE; Ln（W）＆nlE; 0.01S2-4.3，得到铁损特性和涂布性能优异的晶粒取向电工钢板。
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公开(公告)号：US09290824B2
公开(公告)日：2016-03-22
申请号：US14235935
申请日：2012-08-15
IPC分类号： C21D8/12 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , H01F1/16 , H01F1/147 , H01F41/00 , C22C38/16 , C22C38/60 , C23C22/33 , C23C22/74
CPC分类号： C21D8/1272 , C21D8/12 , C21D8/1244 , C21D8/1283 , C21D2201/05 , C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , C22C38/60 , C23C22/33 , C23C22/74 , H01F1/14775 , H01F1/16 , H01F41/00
摘要： In a method of producing a grain-oriented electrical steel sheet by hot-rolling a steel slab of a chemical composition containing C: 0.001˜0.10%, Si: 1.0˜5.0%, Mn: 0.01˜1.0%, at least one of S and Se: 0.01˜0.05% in total, sol. Al: 0.003˜0.050%, N: 0.001˜0.020% by mass, subjecting to cold rolling, a primary recrystallization annealing, application of an annealing separator mainly composed of MgO and a finish annealing, a temperature rising rate S1 between 500˜600° C. in the primary recrystallization annealing is made to not less than 100° C./s and a temperature rising rate S2 between 600˜700° C. is made to 30° C./s˜0.6×S1° C./s, while a total content W (mol %) of an element having an ionic radius of 0.6˜1.3 Å and an attracting force between the ion and oxygen of not more than 0.7 Å−2 included in the annealing separator to MgO is adjusted to satisfy 0.01S2−5.5≦Ln (W)≦0.01S2−4.3 to produce a grain-oriented electrical steel sheet having excellent iron loss properties and coating properties.
摘要翻译： 在通过热轧含有C：0.001〜0.10％，Si：1.0〜5.0％，Mn：0.01〜1.0％的化学成分的钢坯的方法中，S 和Se：0.01〜0.05％，溶胶。 Al：0.003〜0.050％，N：0.001〜0.020质量％，进行冷轧，一次再结晶退火，主要由MgO构成的退火分离装置和最终退火处理，升温速度S1为500〜600度 在一次再结晶退火中，使其在不低于100℃/秒之间，并将600-700℃之间的升温速度S2设定为30℃/秒〜0.6×S1℃/ ，而退火分离器中包含的离子半径为0.6〜0.3的元素和离子与氧之间的吸引力为0.7at以下的总含量W（mol％）被调整为满足 0.01S2-5.5＆nlE; Ln（W）＆nlE; 0.01S2-4.3，得到铁损特性和涂布性能优异的晶粒取向电工钢板。
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公开(公告)号：US20140202599A1
公开(公告)日：2014-07-24
申请号：US14235652
申请日：2012-08-08
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： In a method of producing a grain-oriented electrical steel sheet by subjecting a coil for grain-oriented electrical steel sheet after cold rolling to a primary recrystallization annealing, applying an annealing separator thereon, and conducting final annealing, rapid heating is conducted at a rate of not less than 80° C./sec from 500° C. to 700° C. in the course of heating for the primary recrystallization annealing, and a temperature keeping treatment is conducted for 2 to 100 hours from 700° C. to 1000° C. in the course of heating for the final annealing, and further, the final annealing is preferably conducted by laying a thermal insulation material on an upper surface of a coil supporting stand in an annealing furnace used for the final annealing concentrically from the outer periphery of the coil supporting stand and over an area of not less than 20% of the radius of the coil supporting stand.
摘要翻译： 在通过使冷轧后的方向性电磁钢板的线圈进行一次再结晶退火，在其上涂布退火分离剂并进行最终退火的方法来制造方向性电磁钢板的方法中，以一定速度进行快速加热 在一次再结晶退火的加热过程中从500℃至700℃不低于80℃/秒，并且从700℃至1000℃进行2至100小时的保温处理 在进行最终退火的加热过程中，最终退火优选通过在用于最终退火的退火炉中的线圈支撑架的上表面上放置绝热材料，同时从外部 线圈支撑架的周边，并且在不小于线圈支撑架的半径的20％的面积上。
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公开(公告)号：US09640320B2
公开(公告)日：2017-05-02
申请号：US14235652
申请日：2012-08-08
IPC分类号： H01F1/04 , C21D6/00 , C21D8/12 , C22C38/00 , H01F41/04 , C21D9/46 , H01F1/16 , C22C38/02 , C22C38/04 , C22C38/60
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： In a method of producing a grain-oriented electrical steel sheet by subjecting a coil for grain-oriented electrical steel sheet after cold rolling to a primary recrystallization annealing, applying an annealing separator thereon, and conducting final annealing, rapid heating is conducted at a rate of not less than 80° C./sec from 500° C. to 700° C. in the course of heating for the primary recrystallization annealing, and a temperature keeping treatment is conducted for 2 to 100 hours from 700° C. to 1000° C. in the course of heating for the final annealing, and further, the final annealing is preferably conducted by laying a thermal insulation material on an upper surface of a coil supporting stand in an annealing furnace used for the final annealing concentrically from the outer periphery of the coil supporting stand and over an area of not less than 20% of the radius of the coil supporting stand.
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公开(公告)号：US06280534B1
公开(公告)日：2001-08-28
申请号：US09309240
申请日：1999-05-10
IPC分类号： H01F1047
CPC分类号： C22C38/60 , C21D3/04 , C21D8/1255 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C22C38/02
摘要： Method of making a grain oriented electromagnetic steel sheet having excellent magnetic properties, by a series of steps ranging from hot rolling to final finishing annealing for a silicon steel slab containing from about 0.001 to 0.07 wt % bismuth, wherein the average cooling rate for about five seconds measured immediately after the end of hot rolling is controlled within a range of from about 30 to 120° C./second; the value of the ratio PH2O/PH2 of the atmosphere for the soaking step in decarburization annealing is adjusted within a range of from about 0.45 to 0.70; and a treatment is provided for inhibiting decomposition of the surface inhibitor during final finishing annealing.
摘要翻译： 通过从含有约0.001〜0.07重量％的铋的硅钢板的热轧至最终精加工退火的一系列步骤制造具有优异磁特性的晶粒取向电磁钢板的方法，其中平均冷却速度为约5 在热轧结束后立即测量的秒控制在约30至120℃/秒的范围内; 将脱碳退火中的浸渍工序的气氛的比例PH 2 O / PH 2的值调整为约0.45〜0.70的范围; 并且提供了用于在最终精加工退火期间抑制表面抑制剂的分解的处理。
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6.发明授权Grain oriented electrical steel sheet having very low iron loss and production process for same 有权晶粒取向电工钢片铁损非常低，生产工艺相同公开(公告)号：US06364963B1
公开(公告)日：2002-04-02
申请号：US09548085
申请日：2000-04-11
IPC分类号： H01F1147
CPC分类号： C21D8/12 , C21D8/1222 , C21D8/1294 , C21D2201/05
摘要： In a grain oriented electrical steel sheet used for cores of transformers and generators, a high alignment degree of grain orientations reduces iron loss, by precipitating very fine AlN or/and BN and providing strong inhibiting effect against the growth of the primary recrystallized grains, providing radically improved texture and grain structure in the steel.
摘要翻译： 在用于变压器和发电机的磁芯的晶粒取向电工钢板中，晶粒取向度的高取向度通过沉淀非常细的AlN或/和BN并且对一次再结晶晶粒的生长提供强的抑制作用而降低铁损，提供 从根本上改善了钢的纹理和晶粒结构。
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公开(公告)号：US6083326A
公开(公告)日：2000-07-04
申请号：US953920
申请日：1997-10-20
CPC分类号： C22C38/02 , C21D8/1294 , H01F1/14775
摘要： A grain-oriented electromagnetic steel sheet having a multiplicity of fine grains having a diameter of about 3 mm or less on the surface of the steel sheet, in a numerical ratio of about 65% or more and of about 98% or less relative to the constituting grains that penetrate the sheet along the direction parallel to its thickness, and a method for producing the same. The fine grains are artificially created and regularly disposed with a random orientation in the steel sheet, and contribute to decreasing the strain susceptibility of the steel. More preferably, a treatment for finely dividing magnetic domains is applied on the surface of the steel sheet. Transformers based upon the steel sheet have excellent magnetic characteristics (iron loss and magnetic flux density) together with strain resistance, and the steel sheet has good practical device characteristics (building factor) after being assembled into a transformer.
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公开(公告)号：US5885371A
公开(公告)日：1999-03-23
申请号：US947641
申请日：1997-10-09
申请人： Michiro Komatsubara , Toshito Takamiya , Kunihiro Senda , Mineo Muraki , Chizuko Goto , Mitsumasa Kurosawa , Kazuaki Tamura
发明人： Michiro Komatsubara , Toshito Takamiya , Kunihiro Senda , Mineo Muraki , Chizuko Goto , Mitsumasa Kurosawa , Kazuaki Tamura
CPC分类号： C21D8/1222 , C21D8/1233 , C21D8/1261
摘要： A method of producing a grain-oriented magnetic steel sheet exhibiting a very low core loss and high magnetic flux density uses a slab of silicon steel containing Al, B, N, and S and/or Se. The method employs hot rolling conducted such that the rolling reduction falls within the range of from about 85 to 99%, and the hot-rolling finish temperature falls within the range of from 950.degree. to 1150.degree. C. and is based on the contents of Si, Al and B. The hot-rolled steel sheet is rapidly cooled at a cooling rate of about 20.degree. C./s and is coiled at a temperature of about 670.degree. C. or lower. Hot-rolled sheet annealing or intermediate annealing is executed by heating the hot-rolled steel sheet up to about 800.degree. C. at a heating rate of from 5.degree. to 25.degree. C./s and holding at a temperature of from about 800.degree. to 1125.degree. C. for a period not longer than about 150 seconds. Final cold rolling is executed at a rolling reduction of from 80 to 95%, followed by final finish annealing conducted with specific control of annealing atmosphere.
摘要翻译： 表现出非常低的磁芯损耗和高磁通密度的晶粒取向电磁钢板的制造方法使用含有Al，B，N，S和/或Se的硅钢板。 该方法采用热轧进行，使得轧制压下率在约85-99％的范围内，并且热轧最终温度在950℃至1150℃的范围内，并且基于 Si，Al和B.热轧钢板以约20℃/ s的冷却速度快速冷却，并在约670℃以下的温度下卷绕。 热轧板退火或中间退火通过以5℃〜25℃的加热速度将热轧钢板加热至约800℃，并保持在约800℃的温度 至1125℃，持续不超过约150秒的时间。 以80〜95％的压下率进行最终冷轧，然后进行退火气氛的特定控制的最终成品退火。
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公开(公告)号：US06929704B2
公开(公告)日：2005-08-16
申请号：US10163522
申请日：2002-06-06
CPC分类号： C22C38/02 , C21D8/1294 , H01F1/14775
摘要： A grain-oriented electromagnetic steel sheet having a multiplicity of fine grains having a diameter of about 3 mm or less on the surface of the steel sheet, in a numerical ratio of about 65% or more and of about 98% or less relative to the constituting grains that penetrate the sheet along the direction parallel to its thickness, and a method for producing the same. The fine grains are artificially created and regularly disposed with a random orientation in the steel sheet, and contribute to decreasing the strain susceptibility of the steel. More preferably, a treatment for finely dividing magnetic domains is applied on the surface of the steel sheet.Transformers based upon the steel sheet have excellent magnetic characteristics (iron loss and magnetic flux density) together with strain resistance, and the steel sheet has good practical device characteristics (building factor) after being assembled into a transformer.
摘要翻译： 在钢板表面上具有大约3mm以下的多个细晶粒的晶粒取向电磁钢板相对于该钢板的数值比例为约65％以上且约98％以下 构成沿着与其厚度平行的方向贯穿片材的颗粒及其制造方法。 在钢板中人造生产和规则地随机取向的细晶粒，有助于降低钢的应变敏感性。 更优选地，在钢板的表面上施加用于细分割磁畴的处理。 基于钢板的变压器具有优异的磁特性（铁损和磁通密度）以及应变阻力，并且在组装成变压器之后，钢板具有良好的实际装置特性（建筑因子）。
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公开(公告)号：US06602357B2
公开(公告)日：2003-08-05
申请号：US10057220
申请日：2002-01-24
IPC分类号： H01F1147
CPC分类号： C22C38/34 , C21D8/1266 , C21D8/1283 , C21D8/1288 , C22C38/002 , C22C38/06 , C22C38/20 , C22C38/60 , H01F1/14775 , H01F1/14783
摘要： A grain oriented electrical steel sheet comprises metal part containing Si: about 2.5 to about 5.0 mass % and Cr: about 0.05 to about 1.0 mass %, and an insulation coating formed on a surface of the metal part. A tension imparted to the metal part in the rolling direction by the insulation coating is not smaller than about 3.0 MPa. Magnetic flux density B8 satisfies a specific relation formula. A plurality of linear strains or grooves are formed in a surface of the steel sheet and linearly extended at an angle of not larger than about 45° (in each direction) relative to a direction perpendicular to a rolling direction such that an interval D of the linear strains or grooves satisfies a specific relation formula depending on the Cr content. A grain oriented electrical steel sheet is thereby obtained which has lower iron loss after domain refining treatment than conventional values. In the production process for the steel sheet of the invention, parameters such as annealing temperature in annealing before final cold rolling are controlled.
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