公开(公告)号：US20130292006A1

公开(公告)日：2013-11-07

申请号：US13978925

申请日：2012-01-12

申请人： Fumiaki Takahashi ,  Yoshiyuki Ushigami ,  Kazumi Mizukami ,  Shuichi Nakamura ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Urago

发明人： Fumiaki Takahashi ,  Yoshiyuki Ushigami ,  Kazumi Mizukami ,  Shuichi Nakamura ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Urago

IPC分类号： C23C8/02 ,  H01F1/01

CPC分类号： C23C8/02 ,  C21D6/008 ,  C21D8/1255 ,  C21D8/1277 ,  C21D8/1283 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/34 ,  C22C38/60 ,  C23C28/04 ,  C23C28/042 ,  H01F1/01 ,  H01F1/18

摘要： A grain-oriented electrical steel sheet being a grain-oriented electrical steel sheet containing Si of 0.8 mass % to 7 mass %, Mn of 0.05 mass % to 1 mass %, B of 0.0005 mass % to 0.0080 mass %, each content of Al, C, N, S, and Se of 0.005 mass % or less, and a balance being composed of Fe and inevitable impurities and having a glass coating film made of composite oxide mainly composed of forsterite on the steel sheet surface, in which when glow discharge optical emission spectrometry (GDS) to the surface of a secondary coating film formed on the surface of the glass coating film under a predetermined condition is performed, a peak, of B, in emission intensity having a peak position in emission intensity different from a peak position, of Mg, in emission intensity is obtained and the peak position, of B, in emission intensity from the steel sheet surface is deeper than the peak position, of Mg, in emission intensity.

摘要翻译： 一种晶粒取向电工钢板，其为含有0.8质量％〜7质量％的Si，0.05质量％〜1质量％的Mn，0.0005质量％〜0.0080质量％的B，Al ，C，N，S和Se为0.005质量％以下，余量由Fe和不可避免的杂质构成，并且在钢板表面具有以主要由镁橄榄石构成的复合氧化物的玻璃涂膜， 在预定条件下，在玻璃涂膜的表面上形成的二次涂膜的表面进行放电发光光谱（GDS），发光强度的峰值B的发光强度的峰值不同于 获得发光强度的Mg的峰值位置，从钢板表面的发光强度的B的峰值位置比发光强度的Mg的峰值位置更深。

公开(公告)号：US10208372B2

公开(公告)日：2019-02-19

申请号：US13978925

申请日：2012-01-12

申请人： Fumiaki Takahashi ,  Yoshiyuki Ushigami ,  Kazumi Mizukami ,  Shuichi Nakamura ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Urago

发明人： Fumiaki Takahashi ,  Yoshiyuki Ushigami ,  Kazumi Mizukami ,  Shuichi Nakamura ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Urago

IPC分类号： C23C8/02 ,  H01F1/01 ,  C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  H01F1/18 ,  C22C38/04 ,  C22C38/06 ,  C23C28/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/34 ,  C22C38/60 ,  C21D6/00

摘要： A grain-oriented electrical steel sheet being a grain-oriented electrical steel sheet containing Si of 0.8 mass % to 7 mass %, Mn of 0.05 mass % to 1 mass %, B of 0.0005 mass % to 0.0080 mass %, each content of Al, C, N, S, and Se of 0.005 mass % or less, and a balance being composed of Fe and inevitable impurities and having a glass coating film made of composite oxide mainly composed of forsterite on the steel sheet surface, in which when glow discharge optical emission spectrometry (GDS) to the surface of a secondary coating film formed on the surface of the glass coating film under a predetermined condition is performed, a peak, of B, in emission intensity having a peak position in emission intensity different from a peak position, of Mg, in emission intensity is obtained and the peak position, of B, in emission intensity from the steel sheet surface is deeper than the peak position, of Mg, in emission intensity.

公开(公告)号：US09273371B2

公开(公告)日：2016-03-01

申请号：US13635172

申请日：2011-03-15

申请人： Kenichi Murakami ,  Chie Hama ,  Kazumi Mizukami ,  Yoshiyuki Ushigami ,  Shuichi Nakamura

发明人： Kenichi Murakami ,  Chie Hama ,  Kazumi Mizukami ,  Yoshiyuki Ushigami ,  Shuichi Nakamura

IPC分类号： C23C8/02 ,  C23C8/26 ,  C21D8/12 ,  C21D3/04 ,  C21D6/00 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/60 ,  H01F1/18 ,  C23C8/80 ,  B21B3/00 ,  B21B3/02

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

摘要： A predetermined steel containing Te: 0.0005 mass % to 0.0050 mass % is heated to 1320° C. or lower to be subjected to hot rolling, and is subjected to annealing, cold rolling, decarburization annealing, and nitridation annealing, and thereby a decarburized nitrided steel sheet is obtained. Further, an annealing separating agent is applied on the surface of the decarburized nitrided steel sheet and finish annealing is performed, and thereby a glass coating film is formed. The N content of the decarburized nitrided steel sheet is set to 0.0150 mass % to 0.0250 mass % and the relationship of 2×[Te]+[N]≦0.0300 mass % is set to be established. Note that [Te] represents the Te content and [N] represents the N content.

摘要翻译： 将含有Te：0.0005质量％至0.0050质量％的预定钢加热至1320℃以下进行热轧，进行退火，冷轧，脱碳退火和氮化退火，由此进行脱碳氮化 得到钢板。 此外，在脱碳氮化钢板的表面上涂布退火分离剂，进行最终退火，形成玻璃涂膜。 将脱碳氮化钢板的N含量设定为0.0150质量％〜0.0250质量％，设定2×[Te] + [N] / nlE; 0.0300质量％的关系。 注意，[Te]表示Te含量，[N]表示N含量。

公开(公告)号：US20130000786A1

公开(公告)日：2013-01-03

申请号：US13635172

申请日：2011-03-15

申请人： Kenichi Murakami ,  Chie Hama ,  Kazumi Mizukami ,  Yoshiyuki Ushigami ,  Shuichi Nakamura

发明人： Kenichi Murakami ,  Chie Hama ,  Kazumi Mizukami ,  Yoshiyuki Ushigami ,  Shuichi Nakamura

IPC分类号： C23C8/02 ,  C23C8/26

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

摘要： A predetermined steel containing Te: 0.0005 mass % to 0.0050 mass % is heated to 1320° C. or lower to be subjected to hot rolling, and is subjected to annealing, cold rolling, decarburization annealing, and nitridation annealing, and thereby a decarburized nitrided steel sheet is obtained. Further, an annealing separating agent is applied on the surface of the decarburized nitrided steel sheet and finish annealing is performed, and thereby a glass coating film is formed. The N content of the decarburized nitrided steel sheet is set to 0.0150 mass % to 0.0250 mass % and the relationship of 2×[Te]+[N]≦0.0300 mass % is set to be established. Note that [Te] represents the Te content and [N] represents the N content.

摘要翻译： 将含有Te：0.0005质量％至0.0050质量％的预定钢加热至1320℃以下进行热轧，进行退火，冷轧，脱碳退火和氮化退火，由此进行脱碳氮化 得到钢板。 此外，在脱碳氮化钢板的表面上涂布退火分离剂，进行最终退火，形成玻璃涂膜。 将脱碳氮化钢板的N含量设定为0.0150质量％〜0.0250质量％，设定2×[Te] + [N] / nlE; 0.0300质量％的关系。 注意，[Te]表示Te含量，[N]表示N含量。

公开(公告)号：US08778095B2

公开(公告)日：2014-07-15

申请号：US13699526

申请日：2011-05-19

申请人： Isao Iwanaga ,  Yoshiyuki Ushigami ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Uragoh ,  Kenichi Murakami ,  Chie Hama

发明人： Isao Iwanaga ,  Yoshiyuki Ushigami ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Uragoh ,  Kenichi Murakami ,  Chie Hama

IPC分类号： C23C8/26 ,  C23C8/02

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

摘要： In a method of manufacturing a grain-oriented electrical steel sheet including a nitriding treatment (step S7) and adopting so-called “low-temperature slab heating”, the finish temperature of finish rolling in hot rolling (step S2) is set to 950° C. or below, the cooling is started within 2 seconds after completion of the finish rolling, and a steel strip is coiled at 700° C. or below. The cooling rate over the duration from the end of finish rolling to the start of coiling is set to 10° C./sec or above. In annealing (step S3) of the hot-rolled steel strip, the heating rate in the temperature range from 800° C. to 1000° C. is set to 5° C./sec or above.

摘要翻译： 在制造包括氮化处理（步骤S7）并采用所谓的“低温板坯加热”的方向性电磁钢板的方法中，将热轧中的精轧最终温度（步骤S2）设定为950 ℃以下，在精轧结束后2秒内开始冷却，钢带在700℃以下卷取。 从精轧结束到卷取开始的持续时间的冷却速度设定为10℃/秒以上。 在热轧钢带的退火（步骤S3）中，在800℃〜1000℃的温度范围内的加热速度设定为5℃/秒以上。

公开(公告)号：US20130061985A1

公开(公告)日：2013-03-14

申请号：US13699526

申请日：2011-05-19

申请人： Isao Iwanaga ,  Yoshiyuki Ushigami ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Uragoh ,  Kenichi Murakami ,  Chie Hama

发明人： Isao Iwanaga ,  Yoshiyuki Ushigami ,  Norikazu Fujii ,  Norihiro Yamamoto ,  Masahide Uragoh ,  Kenichi Murakami ,  Chie Hama

IPC分类号： C23C8/00

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

摘要： In a method of manufacturing a grain-oriented electrical steel sheet including a nitriding treatment (step S7) and adopting so-called “low-temperature slab heating”, the finish temperature of finish rolling in hot rolling (step S2) is set to 950° C. or below, the cooling is started within 2 seconds after completion of the finish rolling, and a steel strip is coiled at 700° C. or below. The cooling rate over the duration from the end of finish rolling to the start of coiling is set to 10° C./sec or above. In annealing (step S3) of the hot-rolled steel strip, the heating rate in the temperature range from 800° C. to 1000° C. is set to 5° C./sec or above.

摘要翻译： 在制造包括氮化处理（步骤S7）并采用所谓的低温板坯加热的方向性电磁钢板的方法中，将热轧中的精轧的最终温度（步骤S2）设定为950℃ 在完成精轧后的2秒钟内开始冷却，在700℃以下卷取钢带。 从精轧结束到卷取开始的持续时间的冷却速度设定为10℃/秒以上。 在热轧钢带的退火（步骤S3）中，在800℃〜1000℃的温度范围内的加热速度为5℃/秒以上。

公开(公告)号：US07976644B2

公开(公告)日：2011-07-12

申请号：US12227319

申请日：2007-05-22

申请人： Yoshiyuki Ushigami ,  Norikazu Fujii ,  Takeshi Kimura ,  Maremizu Ishibashi ,  Shuichi Nakamura ,  Koji Yamasaki

发明人： Yoshiyuki Ushigami ,  Norikazu Fujii ,  Takeshi Kimura ,  Maremizu Ishibashi ,  Shuichi Nakamura ,  Koji Yamasaki

IPC分类号： H01F1/147

CPC分类号： B21B3/02 ,  C21D8/1244 ,  C21D8/1255 ,  C21D8/1266 ,  H01F1/14775 ,  H01F1/14791 ,  H01F1/16

摘要： The present invention provides a method of production of grain-oriented electrical steel sheet comprising making a slab heating temperature 1280° C. or less, annealing hot rolled sheet by (a) a process of heating it to a predetermined temperature of 1000 to 1150° C. to cause recrystallization, then annealing by a temperature lower than that of 850 to 1100° C. or by (b) decarburizing in annealing the hot rolled sheet so that a difference in amounts of carbon of the steel sheet before and after annealing the hot rolled sheet becomes 0.002 to 0.02 mass % and performing the heating in the temperature elevation process of the decarburization annealing under conditions of a heating rate of 40° C. or more, preferably 75 to 125° C./s while the temperature of the steel sheet is in a range from 550° C. to 720° C. and utilizing induction heating for rapid heating in the temperature elevation process of decarburization annealing.

摘要翻译： 本发明提供一种制造方向性电磁钢板的方法，其特征在于，包括使板坯加热温度为1280℃以下，（a）将其加热至规定温度为1000〜1150℃的加热方法 C进行再结晶，然后通过低于850℃至1100℃的温度进行退火，或者（b）在热轧板退火时进行脱碳，以使退火前后的钢板的碳量差异 热轧板为0.002〜0.02质量％，在加热率为40℃以上，优选为75〜125℃/℃的条件下，在脱碳退火的升温过程中进行加热，同时， 钢板在550℃至720℃的范围内，并且在脱碳退火的升温过程中利用感应加热进行快速加热。

公开(公告)号：US20090165895A1

公开(公告)日：2009-07-02

申请号：US12227319

申请日：2007-05-22

申请人： Yoshiyuki Ushigami ,  Norikazu Fujii ,  Takeshi Kimura ,  Maremizu Ishibashi ,  Shuichi Nakamura ,  Koji Yamasaki

发明人： Yoshiyuki Ushigami ,  Norikazu Fujii ,  Takeshi Kimura ,  Maremizu Ishibashi ,  Shuichi Nakamura ,  Koji Yamasaki

IPC分类号： C23C8/26

CPC分类号： B21B3/02 ,  C21D8/1244 ,  C21D8/1255 ,  C21D8/1266 ,  H01F1/14775 ,  H01F1/14791 ,  H01F1/16

摘要： The present invention provides a method of production of grain-oriented electrical steel sheet comprising making a slab heating temperature 1280° C. or less, annealing hot rolled sheet by (a) a process of heating it to a predetermined temperature of 1000 to 1150° C. to cause recrystallization, then annealing by a temperature lower than that of 850 to 1100° C. or by (b) decarburizing in annealing the hot rolled sheet so that a difference in amounts of carbon of the steel sheet before and after annealing the hot rolled sheet becomes 0.002 to 0.02 mass % and performing the heating in the temperature elevation process of the decarburization annealing under conditions of a heating rate of 40° C. or more, preferably 75 to 125° C./s while the temperature of the steel sheet is in a range from 550° C. to 720° C. and utilizing induction heating for rapid heating in the temperature elevation process of decarburization annealing.

摘要翻译： 本发明提供一种制造方向性电磁钢板的方法，其特征在于，包括使板坯加热温度为1280℃以下，（a）将其加热至规定温度为1000〜1150℃的加热方法 C进行再结晶，然后通过低于850℃至1100℃的温度进行退火，或者（b）在热轧板退火时进行脱碳，以使退火前后的钢板的碳量差异 热轧板为0.002〜0.02质量％，在加热率为40℃以上，优选为75〜125℃/℃的条件下，在脱碳退火的升温过程中进行加热，同时， 钢板在550℃至720℃的范围内，并且在脱碳退火的升温过程中利用感应加热进行快速加热。

公开(公告)号：US08202374B2

公开(公告)日：2012-06-19

申请号：US13202615

申请日：2010-03-31

申请人： Tomoji Kumano ,  Norihiro Yamamoto ,  Yoshiyuki Ushigami ,  Shuichi Nakamura

发明人： Tomoji Kumano ,  Norihiro Yamamoto ,  Yoshiyuki Ushigami ,  Shuichi Nakamura

IPC分类号： C23C8/00

CPC分类号： C22C38/02 ,  B22D11/124 ,  C21D8/1205 ,  C21D8/1255 ,  C21D8/1283 ,  C22C38/001 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C23C8/26 ,  H01F1/18

摘要： A surface temperature of a slab is decreased down to 600° C. or lower between start of continuous casting (step S2) and start of slab reheating (step S3). The surface temperature of the slab is held at 150° C. or higher between the start of the continuous casting (step s2) and the start of the slab reheating (step S3). The surface temperature of the slab in the slab reheating (step S3) is set to not lower than 1080° C. and not higher than 1200° C.

摘要翻译： 在连续铸造开始（步骤S2）和板坯再加热开始之间，板坯的表面温度降低至600℃以下（步骤S3）。 在连续铸造开始（步骤s2）和板坯再加热开始之间，板坯的表面温度保持在150℃或更高（步骤S3）。 板坯再加热中的板坯的表面温度（步骤S3）设定为不低于1080℃且不高于1200℃。

公开(公告)号：US06733599B2

公开(公告)日：2004-05-11

申请号：US10312115

申请日：2002-12-20

申请人： Hiroyasu Fujii ,  Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Kenichi Murakami ,  Norihiro Yamamoto ,  Kiyoshi Sawano ,  Shuichi Yamazaki

发明人： Hiroyasu Fujii ,  Yoshiyuki Ushigami ,  Shuichi Nakamura ,  Kenichi Murakami ,  Norihiro Yamamoto ,  Kiyoshi Sawano ,  Shuichi Yamazaki

IPC分类号： H01F114

CPC分类号： C21D8/1283 ,  C21D1/70 ,  C21D3/04 ,  C21D8/1255 ,  C21D8/1272

摘要： The present invention provides a method for producing a grain-oriented silicon steel sheet not having inorganic mineral films by using an annealing separator capable of preventing the inorganic mineral films composed of forsterite (Mg2SiO4), and so on, from forming during final annealing, comprising the steps of decarburization annealing followed by coating of annealing separator and final annealing, wherein alumina powder calcined at a calcination temperature of 900 to 1,400° C., or further having a BET specific surface area of 1 to 100 m2/g, an oil absorption of 1 to 70 ml/100 g, and/or having a gamma ratio of 0.001 to 2.0, is used as the annealing separator. Magnesia having a BET specific surface area of 0.5 to 5 m2/g may be added to said alumina powder.

摘要翻译： 本发明提供一种通过使用能够防止由最终退火形成的镁橄榄石（Mg 2 SiO 4）等的无机矿物膜的退火隔板而制造不具有无机矿物膜的晶粒取向硅钢板的方法，包括 脱碳退火的步骤，然后进行退火分离剂的涂布和最终退火，其中在煅烧温度为900〜1400℃或BET比表面积为1〜100m 2 / g的条件下煅烧的氧化铝粉末， 使用1〜70ml / 100g的吸油量和/或具有0.001〜2.0的γ比值的退火分离剂。 可以向所述氧化铝粉末添加BET比表面积为0.5-5m 2 / g的氧化镁。