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

IPC分类号： B32B3/26 ,  H01F3/02 ,  C21D8/12 ,  C22C38/04 ,  C22C38/34 ,  H01F1/18 ,  C23C22/33 ,  C23C22/74

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).

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）。

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）。

公开(公告)号：US20150007908A1

公开(公告)日：2015-01-08

申请号：US14235935

申请日：2012-08-15

申请人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo ,  Kunihiro Senda

发明人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo ,  Kunihiro Senda

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。

公开(公告)号：US06280534B1

公开(公告)日：2001-08-28

申请号：US09309240

申请日：1999-05-10

申请人： Kunihiro Senda ,  Toshito Takamiya ,  Makoto Watanabe ,  Mitsumasa Kurosawa

发明人： Kunihiro Senda ,  Toshito Takamiya ,  Makoto Watanabe ,  Mitsumasa Kurosawa

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。

公开(公告)号：US5330586A

公开(公告)日：1994-07-19

申请号：US905915

申请日：1992-06-29

申请人： Michiro Komatsubara ,  Yasuyuki Hayakawa ,  Katsuo Iwamoto ,  Makoto Watanabe ,  Toshito Takamiya

发明人： Michiro Komatsubara ,  Yasuyuki Hayakawa ,  Katsuo Iwamoto ,  Makoto Watanabe ,  Toshito Takamiya

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/16 ,  H01F1/16 ,  H01F1/04

CPC分类号： C21D8/1222 ,  C21D8/1233 ,  C21D8/1266

摘要： A method of producing a grain oriented silicon steel thin sheet having excellent magnetic properties. A silicon steel slab containing Cu, Se and Sb as inhibitor-forming elements is hot rolled to form a hot-rolled sheet, followed by cold rolling at least twice including intermediate annealing to form a cold-rolled sheet having a final thickness of about 0.10 to 0.25 mm, decarburization and primary recrystallization annealing, and then final finish annealing. The temperature of the material to be rolled on the inlet side of the hot finish rolling mill is about 1000.degree. to 1150.degree. C. the surface temperature of the work rolls of the first stand of the hot finish rolling mill immediately before contact with the material to be rolled is about 100.degree. C. or less the total rolling reduction of the hot finish rolling is about 93 to 97%, the intermediate annealing is effected at a temperature of about 900.degree. to 1050.degree. C. within a time of about 50 seconds, and the rolling reduction of the final cold rolling is about 50 to 80%.

摘要翻译： 一种具有优异的磁特性的晶粒取向硅钢薄片的制造方法。 将含有Cu，Se和Sb作为抑制剂形成元素的硅钢板热轧成热轧板，然后冷轧至少两次，其中间退火形成最终厚度为约0.10的冷轧板 至0.25mm，脱碳和一次再结晶退火，然后进行最终成品退火。 在热精轧机的入口侧被轧制材料的温度为约1000〜1150℃。刚刚与材料接触的热精轧机的第一机架的工作辊的表面温度 轧制的温度为约100℃以下，热精轧的总压下率为93〜97％左右，中间退火在约900〜1050℃的温度下进行，约为50℃ 秒，最终冷轧的轧制压下率为50〜80％左右。

公开(公告)号：US20140202599A1

公开(公告)日：2014-07-24

申请号：US14235652

申请日：2012-08-08

申请人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

发明人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

IPC分类号： H01F41/04 ,  C21D6/00

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。

公开(公告)号：US09640320B2

公开(公告)日：2017-05-02

申请号：US14235652

申请日：2012-08-08

申请人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

发明人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

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.

公开(公告)号：US09290824B2

公开(公告)日：2016-03-22

申请号：US14235935

申请日：2012-08-15

申请人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo ,  Kunihiro Senda

发明人： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo ,  Kunihiro Senda

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。

公开(公告)号：US20130087249A1

公开(公告)日：2013-04-11

申请号：US13703833

申请日：2011-06-17

申请人： Masanori Takenaka ,  Minoru Takashima ,  Toshito Takamiya

发明人： Masanori Takenaka ,  Minoru Takashima ,  Toshito Takamiya

IPC分类号： C21D8/02

CPC分类号： C21D8/0205 ,  C21D8/12 ,  C21D8/1216 ,  C21D8/1244 ,  C21D2201/05 ,  C22C38/004 ,  C22C38/02 ,  C22C38/06 ,  C22C38/60 ,  H01F1/16

摘要： The present invention provides a method for manufacturing a grain oriented electrical steel sheet, including preparing as a material a steel slab having a predetermined composition and carrying out at least two cold rolling operations, characterized in that a thermal treatment is carried out, prior to any one of cold rolling operations other than final cold rolling, at temperature in the range of 500° C. to 750° C. for a period in the range of 10 minutes to 480 hours. The grain oriented electrical steel sheet of the present invention exhibits through utilization of austenite-ferrite transformation superior magnetic properties after secondary recrystallization.

摘要翻译： 本发明提供一种制造晶粒取向电工钢板的方法，包括制备具有预定组成的钢板并进行至少两次冷轧操作的材料，其特征在于，在任何 在最终冷轧之外的冷轧操作之一，在500℃至750℃的温度范围内，持续10分钟至480小时的时间。 本发明的晶粒取向电工钢板通过二次再结晶后的奥氏体 - 铁素体相变优异的磁特性表现出来。