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1. 发明专利

JP2006183118A Method for producing low core loss grain oriented silicon steel sheet 有权
标题翻译：用于生产低芯粒磨损的硅钢板的方法
公开(公告)号：JP2006183118A
公开(公告)日：2006-07-13
申请号：JP2004380582
申请日：2004-12-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： YAMAGUCHI HIROSHI , HAYAKAWA YASUYUKI , MURAKI MINEO
IPC分类号： C23C16/32 , C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a low core loss grain oriented silicon steel sheet in which a uniform carbide-based film can be formed by a chemical vapor deposition process, further, even in the case heat treatment such as the baking of a tension-applying type coating and stress relieving annealing is performed to the surface of the film, not only excellent film adhesion can be maintained but also the uniformity of the film can be obtained. SOLUTION: Regarding the production method, when a carbide-based film is formed on the surface of a grain oriented silicon steel sheet subjected to final finish annealing and free from an undercoat film by chemical vapor deposition treatment, the arithmetic mean roughness of the surface of the grain oriented silicon steel sheet is controlled to ≤0.3 μm, also, the concentration of carbon in the steel sheet is controlled to ≥ä12.9/t(steel sheet thickness: mm)} mass ppm, and, carbon is fed from the steel sheet, so as to perform chemical vapor deposition treatment to the surface of the steel sheet. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：为了提供一种通过化学气相沉积工艺可以形成均匀的碳化物基膜的低磁芯损耗晶粒取向硅钢板的制造方法，而且即使在热处理随着对膜的表面进行张力施加型涂布和应力消除退火的烘烤，不仅可以保持优异的膜粘合性，而且可以获得膜的均匀性。解决方案：关于制造方法，在通过化学气相沉积处理进行最终成品退火且不含底涂膜的晶粒取向硅钢板的表面上形成碳化物系膜时，算术平均粗糙度将晶粒取向硅钢板的表面控制为≤0.3μm，将钢板中的碳浓度控制在≥Δ12.9/ t（钢板厚度：mm）}质量ppm，碳从钢板供给，对钢板的表面进行化学气相沉积处理。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005068525A Method for producing grain-oriented magnetic steel sheet having low core loss and high magnetic flux density 有权
标题翻译：生产具有低核心损失和高磁通密度的晶粒磁性钢板的方法
公开(公告)号：JP2005068525A
公开(公告)日：2005-03-17
申请号：JP2003303067
申请日：2003-08-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HAYAKAWA YASUYUKI , IMAMURA TAKESHI , YOSHIKAWA SHINICHI
IPC分类号： C21D9/46 , C21D8/12 , C22C38/00 , C22C38/60 , H02K1/02
摘要： PROBLEM TO BE SOLVED: To provide a grain-oriented magnetic steel with low core loss and high magnetic density and excellent in blanking workability.
SOLUTION: A slab containing ≤0.08% C, 2.0-8.0% Si, 0.005-0.3% Mn and the total of S and Se reduced to ≤30 ppm, is hot-rolled and successively, cold-rolled and thereafter, subjected to recrystallization-annealing under low oxidizing or non-oxidizing atmosphere, so that C content in the steel after recrystallization-annealing is made to fall within the range of 0.005-0.025%, and thereafter, the last finish-annealing is performed at ≥800°C, and on the way of cooling at the last finish-annealing, this steel sheet is kept at the temperature zone of 650-550°C for ≥10 hr.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有低铁心损耗和高磁密度并且冲裁加工性优异的晶粒取向磁钢。
解决方案：将含有≤0.08％C，2.0-8.0％Si，0.005-0.3％Mn和S和Se总和降低至≤30ppm的板坯进行热轧并依次冷轧，在低氧化性或非氧化性气氛下进行再结晶退火，使再结晶退火后的钢中的C含量在0.005〜0.025％的范围内，最后的最终退火在≥ 800℃，并且在最后一次最终退火的冷却路上，该钢板在650-550℃的温度区保持≥10小时。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005023393A Production method of grain-oriented magnetic steel sheet 有权
标题翻译：面向磁性钢板的生产方法
公开(公告)号：JP2005023393A
公开(公告)日：2005-01-27
申请号：JP2003191869
申请日：2003-07-04
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： IMAMURA TAKESHI , HAYAKAWA YASUYUKI , MURAKI MINEO , YAMAGAMI HIDEO
IPC分类号： C21D9/46 , C21D1/76 , C22C38/00 , C22C38/04 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a low-cost production method of a grain-oriented magnetic steel sheet without using any inhibitor or applying any annealing separator, by establishing a production technique which avoids adhesion between steel sheets at finish annealing, even without applying the annealing separator. SOLUTION: In a series of the production step of the grain-oriented magnetic steel sheet, a slab comprising, by mass, ≤0.08% C, 2.0-8.0% Si, 0.005-1.0% Mn, ≤150 ppm Al, ≤50 ppm each of N, S and Se and the balance being Fe and unavoidable impurities is subjected to hot rolling, subsequently to cold rolling either once or two or more times interrupted by intermediate annealing and subsequently to finish annealing. Here, finish annealing is performed without applying the annealing separator to the steel sheet after recrystallization annealing. The maximum temperature in finish annealing is kept below a prescribed temperature, and the average heating rate for heating the steel sheet from 700°C to the maximum temperature in finish annealing and the average cooling rate for cooling the steel sheet from the maximum temperature to 700°C are each controlled to ≤30°C/h. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供不使用任何抑制剂或施加任何退火分离剂的晶粒取向电磁钢板的低成本制造方法，通过建立避免最终退火时钢板之间的粘附的制造技术，甚至而不应用退火分离器。解决方案：在一系列的晶粒取向电磁钢板的制造工序中，将以质量计≤0.08％，2.0〜8.0％的Si，0.005〜1.0％的Mn，≤150ppm的Al，将N，S，Se各自不足50ppm，余量为Fe和不可避免的杂质进行热轧，然后进行冷轧，中间退火中断一次或两次以上，然后进行最终退火。这里，在再结晶退火后，在钢板上不进行退火分离，进行最终退火。最终退火时的最高温度保持在规定温度以下，将钢板从700℃加热到最终退火时的最高温度的平均加热速度和将钢板从最高温度冷却至700℃的平均冷却速度 ℃控制在≤30℃/ h。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004225154A Grain-oriented magnetic steel sheet 有权
标题翻译：面向磁性的钢板
公开(公告)号：JP2004225154A
公开(公告)日：2004-08-12
申请号：JP2003018092
申请日：2003-01-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： ARAGAKI YUKIHIRO , HAYAKAWA YASUYUKI , IMAMURA TAKESHI , MURAKI MINEO
IPC分类号： C21D8/12 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/16 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide an economically profitable grain-oriented magnetic steel sheet in which even in the case that B 8 in the rolling direction is at a level of ≤1.85T, an iron loss can be improved by adding the tension. SOLUTION: In the grain-oriented magnetic steel sheet having ≥0.7T magnetic flux density B 1 at the right angle to the rolling direction and ≤1.85T magnetic flux density B 8 in the rolling direction, the improvement in the iron loss is realized with the addition of tension in the rolling direction. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题为了提供一种经济有利可图的晶粒取向电磁钢板，其中即使在轧制方向上的B 8 的水平处于≤1.85T的水平，铁可以通过增加张力来改善损失。解决方案：在具有≥0.7T磁通密度B 1 与轧制方向成直角的晶粒取向电磁钢板中，≤1.85T磁通密度B 8 < / SB>轧制方向，通过在轧制方向上增加张力来实现铁损的提高。版权所有（C）2004，JPO＆NCIPI

5. 发明专利

JP2004223605A Continuous casting method for electrical steel slab 有权
公开(公告)号：JP2004223605A
公开(公告)日：2004-08-12
申请号：JP2003017697
申请日：2003-01-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： IMAMURA TAKESHI , HAYAKAWA YASUYUKI , MURAKI MINEO
IPC分类号： B22D11/12 , B22D11/00 , B22D11/124 , B22D11/16 , B22D11/22 , C22C38/00 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a way of preventing the splitting that occurs in continuous casting of a slab when manufacturing a grain oriented electrical steel sheet by using a component system decreased in impurities of inhibitor components etc. SOLUTION: In continuously casting the electrical slab by a curvilinear or vertically curvilinear continuous casting machine by using molten steel having a component composition which contains ≤0.08 mass% C, ≤2.0 to 8.0 mass% Si, and 0.005 to 3.00 mass% Mn, is decreased in Al to ≤100 ppm and is decreased in N, S and Se respectively to ≤50 ppm, the surface temperature of the slab passing the straightening point of the cooling zone of the continuous casting machine is controlled to off the temperature range of 800 to 900°C. COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2004190053A Method for manufacturing grain-oriented magnetic steel sheet superior in repeatedly bending property 审中-公开
公开(公告)号：JP2004190053A
公开(公告)日：2004-07-08
申请号：JP2002355815
申请日：2002-12-06
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： TERAJIMA TAKASHI , TAKASHIMA MINORU , HAYAKAWA YASUYUKI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/06 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a grain-oriented magnetic steel sheet that has superior repeatedly-bending properties of a product plate, while preventing the deterioration of the uniformity and adhesiveness of a coating film, which becomes a problem particularly when S and Se are reduced to 50 ppm or less. SOLUTION: The grain-oriented magnetic steel sheet has a composition containing Al, and S and Se in a respectively reduced amount of less than 100 ppm and 50 ppm or less each. The manufacturing method comprises hot-rolling a steel slab having the above composition, annealing the hot-rolled plate as needed, then cold-rolling it once or more times sandwiching intermediate annealing, subsequently decarburization-annealing it, then applying a separation agent for annealing, which contains MgO as a main component, and subjecting it to final finishing annealing consisting of secondary recrystallization annealing and purification annealing, wherein the separation agent for annealing to be used contains Ti oxide of 0.1 to 9.0 pts.wt. with respect to 100 pts.wt. of MgO, and the final finishing annealing includes a step of holding the cold-rolled sheet in a temperature range of 900°C or higher but 1,050°C or lower, for 5 hours or longer but 15 hours or shorter in an atmosphere of containing 50 vol.% or more of an inert gas, and keeping it in a temperature range of 950°C or higher in the step, for 2 hours or longer but 10 hours or shorter. COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2004100025A Electromagnetic steel sheet for split-type iron core 有权
公开(公告)号：JP2004100025A
公开(公告)日：2004-04-02
申请号：JP2002266921
申请日：2002-09-12
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： SENDA KUNIHIRO , HONDA ATSUTO , SADAHIRO KENICHI , TERAJIMA TAKASHI , HAYAKAWA YASUYUKI
IPC分类号： C22C38/00 , C22C38/02 , H01F1/16 , H02K1/02 , H02K1/18 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic steel sheet for a split-type iron core, which enables the rotary machine to attain high efficiency, through advantageously avoiding an increase of an iron loss produced in a stator side of a motor with the use of a permanent magnet for a rotor. SOLUTION: The magnetic steel sheet for the split-type iron core includes 2.0-8.0 mass% Si; has B L2 of 1.60 T or higher and B C2 /B L2 of 0.80 or less, where B L2 and B C2 are defined as magnetic flux densities respectively along a rolling direction and along a long-transverse direction in a magnetizing force of 200 A/m; and has further W C200/50 /W L200/50 of 1.4 or less, where W L200/50 and W C200/50 are defined as the iron losses respectively along a rolling direction and along a long-transverse direction in the maximum magnetizing force of 200 A/m and a frequency of 50 Hz. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2003253341A PROCESS FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET SHOWING EXCELLENT MAGNETIC PROPERTY 审中-公开
公开(公告)号：JP2003253341A
公开(公告)日：2003-09-10
申请号：JP2002058874
申请日：2002-03-05
申请人： JFE STEEL KK
发明人： SHIGA NOBUISA , HAYAKAWA YASUYUKI , TAKASHIMA MINORU , TOGE TETSUO
IPC分类号： B21B1/22 , B21B1/26 , B21B3/02 , C21D9/46 , C22C38/00 , C22C38/06 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To manufacture a grain-oriented magnetic steel sheet showing excellent magnetic properties and improved stability by appropriately controlling primary recrystallized grains. SOLUTION: The grain-oriented magnetic steel sheet is manufactured by hot rolling a steel slab having a component composition comprising ≤0.08 mass% C, 2.0-8.0 mass% Si and 0.005-3.0 mass% Mn, wherein Al content is reduced to COPYRIGHT: (C)2003,JPO

9. 发明专利

JP2003193131A METHOD OF PRODUCING GRAIN ORIENTED SILICON STEEL SHEET HAVING EXCELLENT MAGNETIC PROPERTY 审中-公开
公开(公告)号：JP2003193131A
公开(公告)日：2003-07-09
申请号：JP2001392999
申请日：2001-12-26
申请人： JFE STEEL KK
发明人： TOGE TETSUO , HAYAKAWA YASUYUKI , KUROSAWA MITSUMASA , YAMAGAMI HIDEO , KOMATSUBARA MICHIRO
IPC分类号： B21B3/02 , C21D8/12 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To stably produce a grain oriented silicon steel sheet which has excellent magnetic properties after finish annealing by properly controlling the growth of grains in a primarily recrystallized sheet even under the condition that a slab heating temperature is low to the extent of the case of common steel. SOLUTION: The steel slab having a prescribed componential composition is hot-rolled, and is, if required, subjected to hot rolled sheet annealing. After that, the steel sheet is subjected to cold rolling for one time or for ≥two times including process annealing so as to obtain a final sheet thickness, and is next subjected to annealing for primary recrystallization and decarburization, and is thereafter subjected to final finish annealing. In the method of producing a steel sheet consisting of a series of stages above, as for the annealing for primary recrystallization and decarburization, C is contained by ≥0.01 mass% till the completion of the primary recrystallization, and is reduced to ≤0.005 mass% after the completion of the primary recrystallization. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2007302999A Grain oriented electromagnetic steel sheet for ei core 有权
标题翻译：用于EI芯的面向电磁铁片
公开(公告)号：JP2007302999A
公开(公告)日：2007-11-22
申请号：JP2007152071
申请日：2007-06-07
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HAYAKAWA YASUYUKI , IMAMURA TAKESHI , KUROSAWA MITSUMASA
IPC分类号： C22C38/00 , B21B3/02 , C21D1/74 , C21D9/46 , C22C38/04 , C22C38/60 , H01F1/16
摘要： PROBLEM TO BE SOLVED: To provide an economically advantageous grain oriented electromagnetic steel sheet having excellent workability and magnetic properties. SOLUTION: The grain oriented electromagnetic steel sheet has a composition comprising, by mass, 2.0 to 8.0% Si and 10 to 100 ppm N, further comprises fine crystal grains with a grain diameter of 0.15 to 0.50 mm at the frequency of 2 to 100.3 pieces/cm 2 at the inside of secondarily recrystallized grains, and in which a base film essentially consisting of forsterite (Mg 2 SiO 4 ) is not formed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的可加工性和磁特性的经济有利的晶粒取向电磁钢板。解决方案：晶粒取向电磁钢板具有以质量计2.0质量％至8.0％的Si和10至100ppm N的组成，还包含晶粒直径为0.15至0.50mm的细晶粒，频率为2 在二次再结晶晶粒的内部具有100.3个/ cm 2·SP 2，并且其中基本上由镁橄榄石（Mg SiO 4 4 ）没有形成。版权所有（C）2008，JPO＆INPIT

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