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1. 发明授权

US5472521A Production method of grain oriented electrical steel sheet having excellent magnetic characteristics 失效
标题翻译：具有优异磁特性的晶粒取向电工钢板的制造方法
公开(公告)号：US5472521A
公开(公告)日：1995-12-05
申请号：US322909
申请日：1994-10-13
申请人： Yasunari Yoshitomi , Maremizu Ishibashi , Yoichi Mishima , Koji Yamasaki
发明人： Yasunari Yoshitomi , Maremizu Ishibashi , Yoichi Mishima , Koji Yamasaki
IPC分类号： C21D3/04 , C21D8/12 , H01F1/147
CPC分类号： C21D8/1222 , C21D2201/05 , C21D3/04 , C21D8/1233 , C21D8/1255
摘要： This invention is directed to improve magnetic properties and to stabilize the magnetic properties of a grain oriented electrical steel sheet used as a core of electric appliances. When producing a grain oriented electrical steel sheet by heating a slab containing C, Si, acid-soluble Al, N, not more than 0.014% of S+0.405 Se and 0.05 to 0.8% of Mn and the balance consisting of Fe and unavoidable impurities at a temperature of less than 1,280.degree. C., effecting hot rolling, applying cold rolling, decarbonization annealing and final finish annealing without annealing hot rolled sheet, the production method of the present invention controls the precipitation quantity of AlN in the hot rolled sheet, controls the mean grain size of the primary crystallization grains from completion of decarbonization annealing to the start of final finish annealing, applies nitriding treatment after hot rolling but before the start of secondary recrystallization at final finish annealing, controls the hot rolling condition in accordance with the quantities of acid-soluble Al and N of the slab, and further adds Sn.
摘要翻译：本发明旨在提高磁性能并稳定用作电器的核心的晶粒取向电工钢板的磁特性。当通过加热含有C，Si，酸可溶性Al，N，不大于S + 0.405 Se的0.014％和Mn为0.05-0.8％的平板生产晶粒取向电工钢板，其余由Fe和不可避免的杂质在低于1,280℃的温度下进行热轧，进行冷轧，脱碳退火和最终成品退火而不退火热轧板，本发明的制造方法控制热轧板中的AlN的析出量，控制从完成脱碳退火到最终成品退火开始的一次结晶粒子的平均粒径，在热轧后进行氮化处理，但是在最终成品退火时进行二次再结晶开始之前，根据量的酸溶性Al和N，并进一步添加Sn。

2. 发明授权

US5512110A Process for production of grain oriented electrical steel sheet having excellent magnetic properties 失效
标题翻译：具有优良磁特性的晶粒取向电工钢板的制造方法
公开(公告)号：US5512110A
公开(公告)日：1996-04-30
申请号：US466866
申请日：1995-06-06
申请人： Yasunari Yoshitomi , Katsuro Kuroki , Yukio Matsuo , Hiroaki Masui , Yoshio Nakamura , Maremizu Ishibashi , Tsuyoshi Kawano , Tsutomu Haratani , Yoshiyuki Ushigami
发明人： Yasunari Yoshitomi , Katsuro Kuroki , Yukio Matsuo , Hiroaki Masui , Yoshio Nakamura , Maremizu Ishibashi , Tsuyoshi Kawano , Tsutomu Haratani , Yoshiyuki Ushigami
IPC分类号： C21D8/12 , C22C38/02 , H01F1/18
CPC分类号： C22C38/02 , C21D8/1255 , C21D8/1272 , C21D8/1233 , C21D8/1283
摘要： In the present invention, grain oriented electrical steel sheets provided by heating a slab comprising, by weight percent, 0.025 to 0.075% of C, 3.4 to 5.0% of Si, 0.015 to 0.080% of sol. Al, 0.0030 to 0.013% of N, 0.014% or less of (S+0.405 Se) and 0.05 to 0.8% of Mn, sol. Al (%)/Si (%) being 0.0080 or more, the balance consisting of Fe and unavoidable impurities at a temperature below 1280.degree. C., hot-rolling the heated slab, subjecting the hot-rolled steel sheet to cold rolling, subjecting the cold-rolled steel sheet to decarbonization annealing with regulating the average diameter of primary recrystallized grains of the steel sheet subjected to decarbonization annealing to 18 to 35 .mu.m in a period between the completion of the decarbonization annealing and the initiation of final annealing, coating the decarburized steel with an annealing separator and subjecting the coated steel sheet to final annealing, wherein the final annealing is effected in such a manner that the partial pressure of nitrogen, P .sub.N2 (%), in the annealing atmosphere is 12.5% or more in a steel sheet temperature range of from 900.degree. C. to 1150.degree. C. in the heating stage of the final annealing, and subjecting the steel sheet to nitriding to cause the steel sheet to absorb 0.0010% by weight or more of nitrogen in a period between the completion of the hot rolling and the initiation of secondary recystallization in the final annealing.
摘要翻译：在本发明中，通过加热板坯而提供的晶粒取向电工钢板，其包含重量百分比为0.025〜0.075％的C，3.4〜5.0％的Si，0.015〜0.080％的溶胶。 Al，0.0030〜0.013％N，0.014％以下（S + 0.405 Se）和0.05〜0.8％Mn，sol。 Al（％）/ Si（％）为0.0080以上，余量由温度低于1280℃的Fe和不可避免的杂质组成，热轧加热板坯，对热轧钢板进行冷轧，冷轧钢板进行脱碳退火，将脱碳退火钢板的一次再结晶晶粒的平均直径调整为18〜35μm，在完成脱碳退火和开始最终退火，涂布所述脱碳钢与退火分离剂一起进行最终退火，其中最终退火以使退火气氛中的氮分压P N2（％）为12.5％以上的方式进行，在最终退火的加热阶段的钢板温度范围为900〜1150℃，对钢板进行氮化处理，使钢板吸收0.0010％在最终退火之间的热轧完成和二次再结晶开始之间的时间内的氮气重量或更多。

3. 发明授权

US5507883A Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for production the same 失效
标题翻译：具有高磁通密度和超低铁损的晶粒取向电工钢板及其制造方法相同
公开(公告)号：US5507883A
公开(公告)日：1996-04-16
申请号：US257765
申请日：1994-06-09
申请人： Osamu Tanaka , Hiroaki Masui , Hotaka Honma , Katsuro Kuroki , Tsutomu Haratani , Yoichi Mishima , Maremizu Ishibashi , Yoshio Nakamura
发明人： Osamu Tanaka , Hiroaki Masui , Hotaka Honma , Katsuro Kuroki , Tsutomu Haratani , Yoichi Mishima , Maremizu Ishibashi , Yoshio Nakamura
IPC分类号： C21D8/12 , H01F1/147 , H01F1/04
CPC分类号： C21D8/1283 , H01F1/14783 , C21D8/1255 , C21D8/1272
摘要： A grain oriented electrical steel sheet having no significant glass film and having a high magnetic flux density and an excellent iron loss property, comprising, in terms of by weight, 2.5 to 4.5% of Si, the steel sheet having, as oxides on its surface, a glass film comprising 0.6 g/m.sup.2 or less in total of forsterite and spinel composed of MgO, SiO.sub.2 and Al.sub.2 O.sub.3 and an insulating coating having a thickness of 6 .mu.m or less, the face tension imparted on the surface of the steel sheet by the coating being in the range of from 0.5 to 2.0 kg/mm.sup.2. In the final box annealing of the steel sheet after primary recrystallization annealing, use is made of an annealing separator comprising 100 parts by weight of MgO and, added thereto, 2 to 30 parts by weight of at least one member selected from the group consisting of chlorides, carbonates, nitrates, sulfates and sulfides of Li, K, Bi, Na, Ba, Ca, Mg, Zn, Fe, Zr, Sr, Sn, Al, etc., and the heating in the final box annealing is effected in an atmosphere comprising N.sub.2 and H.sub.2 with the nitrogen content being 30% or more at a heating rate of 20.degree. C./hr or less, and a seam or spotty flaw is imparted at an angle of 45.degree. to 90.degree. to the rolling direction of the steel sheet.
摘要翻译：一种不具有显着玻璃膜并且具有高磁通密度和优异的铁损特性的晶粒取向电工钢板，其中，按重量计包含2.5至4.5％的Si，该钢板在其表面上具有氧化物，由MgO，SiO 2和Al 2 O 3组成的镁橄榄石和尖晶石的总计为0.6g / m 2以下的玻璃膜和厚度为6μm以下的绝缘涂层，通过以下方式赋予钢板表面的表面张力涂层在0.5至2.0kg / mm 2的范围内。在一次再结晶退火后的钢板的最终退火中，使用包含100重量份MgO的退火分离剂，向其中加入2〜30重量份的选自以下的至少一种： Li，K，Bi，Na，Ba，Ca，Mg，Zn，Fe，Zr，Sr，Sn，Al等的氯化物，碳酸盐，硝酸盐，硫酸盐和硫化物，最终箱退火中的加热是包含N 2和H 2的气氛，氮含量在20℃/小时以下的加热速率为30％以上，接缝或斑点缺陷与轧制方向成45度〜90度的角度的钢板。

4. 发明授权

US5685920A Annealing separator having excellent reactivity for grain-oriented electrical steel sheet and method of use the same 失效
标题翻译：对于取向电工钢板的反应性优异的退火分离机及其使用方法
公开(公告)号：US5685920A
公开(公告)日：1997-11-11
申请号：US440276
申请日：1995-05-12
申请人： Osamu Tanaka , Maremizu Ishibashi , Tsuyoshi Hamaya , Tsutomu Haratani , Tomoji Kumano , Koji Yamasaki , Akira Sakaida , Chihiro Sakurai , Hotaka Honma
发明人： Osamu Tanaka , Maremizu Ishibashi , Tsuyoshi Hamaya , Tsutomu Haratani , Tomoji Kumano , Koji Yamasaki , Akira Sakaida , Chihiro Sakurai , Hotaka Honma
IPC分类号： C21D1/76 , C21D8/12 , H01F1/147 , H01F1/18
CPC分类号： H01F1/14783 , C21D8/1272 , C21D8/1283 , H01F1/18 , C21D1/76
摘要： Disclosed is an annealing separator for production for grain-oriented electrical steel sheet, containing one or more compound selected from the following general formula; �Mg.sub.1-x M.sup.3+.sub.x !O �Mg.sub.1-x M.sup.2+.sub.x !O or �Mg.sub.1-x M.sup.2+.sub.x1 M.sup.3+.sub.x2 !O where M.sup.2+ is at least one bivalent element selected from the group consisting of Be, Ca, Ba, Sr, Sn, Mn, Fe, Co, Ni, Cu, Zn; M.sup.3+ is at least one tervalent element selected from the group consisting of Al, Fe, Cr, Co, B, Ti, Sb; 0.01.ltoreq.x.ltoreq.0.40; x=x1+x2 This annealing separator having a lower melting point and higher degree of reactivity is applied on the decarburization annealed strip, and improves the properties of the glass film, especially uniform film appearance and good sealing effect, and magnetic properties.
摘要翻译：公开了一种含有一种或多种选自以下通式的化合物的晶粒取向电工钢板的退火分离剂：[Mg1-xM3 + x] O [Mg1-xM2 + x] O或[Mg1-xM2 + x1M3 + x2]其中M2 +为选自Be，Ca，Ba，Sr，Sn，Mn，Fe，Co，Ni，Cu，Zn中的至少一种二价元素; M3 +是选自Al，Fe，Cr，Co，B，Ti，Sb中的至少一种三价元素;0.01≤x≤0.40; x = x1 + x2在脱碳退火带上施加具有较低熔点和较高反应性的退火分离剂，并且改善玻璃膜的性能，特别是膜的外观均匀，密封效果好，磁性能好。

5. 发明授权

US07976644B2 Method of production of grain-oriented electrical steel sheet with high magnetic flux density 有权
标题翻译：具有高磁通密度的方向性电磁钢板的生产方法
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。

6. 发明授权

US5840131A Process for producing grain-oriented electrical steel sheet having excellent glass film and magnetic properties 失效
标题翻译：具有优异的玻璃膜和磁特性的晶粒取向电工钢板的制造方法
公开(公告)号：US5840131A
公开(公告)日：1998-11-24
申请号：US836593
申请日：1997-05-17
申请人： Kenichi Yakashiro , Hotaka Honma , Maremizu Ishibashi , Akira Sakaida , Tomoji Kumano , Koji Yamasaki , Katsuro Kuroki , Osamu Tanaka
发明人： Kenichi Yakashiro , Hotaka Honma , Maremizu Ishibashi , Akira Sakaida , Tomoji Kumano , Koji Yamasaki , Katsuro Kuroki , Osamu Tanaka
IPC分类号： C21D1/76 , C21D8/12 , H01F1/147 , H01F1/18
CPC分类号： H01F1/14783 , C21D8/1272 , C21D8/1283 , H01F1/18 , C21D1/76
摘要： A process for producing a grain-oriented electrical steel sheet excellent in the glass film and the magnetic properties by coating a steel sheet with an annealing separator, finish annealing the steel sheet, and baking an insulating coating agent, which comprises coating the steel sheet having been decarburization annealed with an annealing separator prepared by allowing 100 parts by weight of MgO to contain, in the course from the step of producing MgO to the stage of preparing a slurry in the step of coating the steel sheet with MgO, halogens selected from F, Cl, Br and I or compounds of the halogens in an amount of 0.015 to 0.120 part by weight in terms of F, Cl, Br and I, and finish annealing the steel sheet.
摘要翻译： PCT No.PCT / JP95 / 02346 Sec。 371日期1997年5月15日 102（e）日期1997年5月15日PCT提交1995年11月16日PCT公布。公开号WO96 / 15291 日期：1996年5月23日利用退火分离剂对钢板进行涂布，对钢板进行最终退火处理以及烘烤绝缘涂布剂，制造玻璃膜的特性优异的方向性电磁钢板的制造方法，已经将退火隔板进行了脱碳退火处理的钢板，所述退火分离剂是在MgO的制造工序中，在从MgO的制造步骤到制备浆料的阶段中，含有100重量份的MgO，选自F，Cl，Br和I的卤素或以F，Cl，Br和I换算为0.015至0.120重量份的卤素化合物，并对钢板进行最终退火。

7. 发明申请

US20090165895A1 Method of production of grain-oriented electrical steel sheet with high magnetic flux density 有权
标题翻译：具有高磁通密度的方向性电磁钢板的生产方法
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。

8. 发明授权

US5266129A Process for production of oriented electrical steel sheet having excellent magnetic properties 失效
标题翻译：具有优异的磁特性的取向电工钢板的制造方法
公开(公告)号：US5266129A
公开(公告)日：1993-11-30
申请号：US948361
申请日：1992-09-21
申请人： Masayoshi Minakuchi , Yasumitsu Kondo , Maremizu Ishibashi
发明人： Masayoshi Minakuchi , Yasumitsu Kondo , Maremizu Ishibashi
IPC分类号： C21D3/04 , C21D8/12 , C21D9/46 , C21D11/00 , C23C8/26 , C23C8/80 , H01F1/16 , H01F1/04
CPC分类号： C21D8/1255 , C21D11/00 , C21D3/04 , C23C8/80
摘要： A slab for an electrical steel sheet is heated at a temperature of 1280.degree. C. or below and then hot-rolled. The hot-rolled steel sheet or hot rolled and annealed steel sheet is then cold-rolled once or at least twice with intermediate annealing being performed between rollings. The cold-rolled sheet is decarburized and nitrided to form an inhibitor. The amount of nitrogen of in the steel sheet during the nitriding treatment subsequent to the decarburization annealing and the iron loss value after the withdrawal of the steel sheet from the furnace are measured to estimate the average diameter of a primary recrystallized grain, and next decarburization annealing is performed under conditions regulated in such a manner that the average diameter of the primary recrystallized grain of a product sheet falls within a proper range. The steel sheet subjected to the decarburization annealing is coated with an annealing separator composed mainly of MgO and then subjected to finish annealing.

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