公开(公告)号：US20150007908A1

公开(公告)日：2015-01-08

申请号：US14235935

申请日：2012-08-15

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

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

IPC: C21D8/12 ,  C22C38/00 ,  H01F1/147 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F41/00 ,  C22C38/02

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US09640320B2

公开(公告)日：2017-05-02

申请号：US14235652

申请日：2012-08-08

Applicant: Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

Inventor： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

IPC: H01F1/04 ,  C21D6/00 ,  C21D8/12 ,  C22C38/00 ,  H01F41/04 ,  C21D9/46 ,  H01F1/16 ,  C22C38/02 ,  C22C38/04 ,  C22C38/60

CPC classification number: 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

Abstract: 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

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

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

IPC: 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 classification number: 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

Abstract: 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.

Abstract translation: 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：US20140202599A1

公开(公告)日：2014-07-24

申请号：US14235652

申请日：2012-08-08

Applicant: Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

Inventor： Makoto Watanabe ,  Yukihiro Shingaki ,  Toshito Takamiya ,  Tomoyuki Okubo

IPC: H01F41/04 ,  C21D6/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。