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1. 发明授权

US06478892B2 Low iron loss non-oriented electrical steel sheet excellent in workability and method for producing the same 有权
标题翻译：作业性优良的低铁损无取向电工钢板及其制造方法
公开(公告)号：US06478892B2
公开(公告)日：2002-11-12
申请号：US09827968
申请日：2001-04-06
申请人： Ken-ichi Murakami , Takashi Morohoshi , Tomoji Kumano , Ryutaro Kawamata , Takeshi Kubota , Masafumi Zeze , Hidekuni Murakami , Shinichi Kanao
发明人： Ken-ichi Murakami , Takashi Morohoshi , Tomoji Kumano , Ryutaro Kawamata , Takeshi Kubota , Masafumi Zeze , Hidekuni Murakami , Shinichi Kanao
IPC分类号： H01F104
CPC分类号： C21D8/12 , C21D8/1261 , C21D8/1272
摘要： The present invention provides a non-oriented electrical steel sheet having crystal grains of small diameter and excellent workability before stress relief annealing and having crystal grains of largely grown diameter and excellent iron loss property after stress relief annealing and a method for producing the same, and relates to a low iron loss non-oriented electrical steel sheet excellent in workability, containing, in weight %, 0.010% or less of C, 0.1 to 1.5% of Mn, 0.1 to 4% of Si, 0.1 to 4% of Al, wherein the latter three elements satisfy the formula Si+Mn+Al≦5.0%, and 0.0005 to 0.0200% of Mg, or further containing 0.005% or more of Ca, wherein the total amount of Mg and Ca is 0.0200% or less, or further containing 0.005% or more of REM, wherein the total amount of Mg and REM is 0.0200% or less, or further containing 0.005% or more of Ca and REM, wherein the total amount of Mg, Ca and REM is 0.0200% or less, and containing the remainder consisting of Fe and unavoidable impurities.
摘要翻译：本发明提供一种在应力消除退火之前具有直径小的晶粒和可加工性优异的无取向电工钢板，其具有大直径生长的晶粒和应力消除退火后的优异的铁损性能及其制造方法，涉及加工性优异的低铁损无取向电工钢板，其含量为C：0.010％以下，Mn：0.1〜1.5％，Si：0.1〜4％，Al：0.1〜4％其中后三种元素满足式Si + Mn + Al <= 5.0％，Mg：0.0005〜0.0200％，进一步含有0.005％以上的Ca，其中Mg和Ca的总量为0.0200％以下，或进一步含有0.005％以上的REM，其中Mg和REM的总量为0.0200％以下，或进一步含有0.005％以上的Ca和REM，其中Mg，Ca和REM的总量为0.0200％，或较少，含有余量由Fe和不可避免的impuriti组成 es。

2. 发明授权

US5803989A Process for producing non-oriented electrical steel sheet having high magnetic flux density and low iron loss 失效
标题翻译：具有高磁通密度和低铁损的无方向性电磁钢板的制造方法
公开(公告)号：US5803989A
公开(公告)日：1998-09-08
申请号：US765858
申请日：1996-12-19
申请人： Ryutaro Kawamata , Takeshi Kubota , Tomoji Kumano
发明人： Ryutaro Kawamata , Takeshi Kubota , Tomoji Kumano
IPC分类号： C21D8/12 , H01F1/147
CPC分类号： C21D8/1222 , C21D8/1261 , C21D8/1233 , C21D8/1277
摘要： A process for producing a non-oriented electrical steel sheet, comprising the steps of: hot rolling a non-oriented electrical steel sheet of a steel comprising at least one element selected from the group consisting of Si, Mn, and Al in respective amounts, in terms of by weight, satisfying the requirements 0.10%.ltoreq.Si.ltoreq.2.50%, 0.10%.ltoreq.Al.ltoreq.1.00%, 0.10%.ltoreq.Mn.ltoreq.2.00%, and the total amount of Si and Al being (Si+2Al).ltoreq.2.50%, with the balance consisting of Fe and unavoidable impurities, to prepare a hot rolled sheet; either subjecting the hot rolled sheet to single pass rolling to a final sheet thickness followed by finish annealing, or cold rolling the hot rolled sheet and then finish annealing the cold rolled sheet followed by skin pass rolling with a reduction ratio of 2 to 20% to a final sheet thickness, wherein the finishing in the step of finish hot rolling is performed in a temperature region of (Ar.sub.3 +50).degree. C. or above, the strip coiling temperature is in a temperature region of the Ar.sub.1 point or above, and, thereafter, in the coiled state, the strip is self-annealed in such a manner that the coil is held in the temperature range of from (A.sub.1 -50).degree. C. to below {(A.sub.1 +A.sub.3)/2}.degree. C. for 2 min to 3 hr.
摘要翻译： PCT No.PCT / JP95 / 00234 Sec。 371 1996年12月19日第 102（e）日期1996年12月19日PCT提交1995年2月17日PCT公布。公开号WO96 / 00306 日本1996年1月4日一种无取向电工钢板的制造方法，其特征在于，包括以下工序：将含有选自Si，Mn和Si的至少一种元素的钢的无方向性电工钢板进行热轧， Al的含量按重量计，满足0.10％

3. 发明授权

US5421912A Method of producing non-oriented electrical steel sheet having good magnetic properties 失效
标题翻译：具有良好磁特性的无方向性电磁钢板的制造方法
公开(公告)号：US5421912A
公开(公告)日：1995-06-06
申请号：US213999
申请日：1994-03-15
申请人： Tomoji Kumano , Takeshi Kubota , Tadashi Nakayama , Hiroaki Masui , Yuji Yoshimura
发明人： Tomoji Kumano , Takeshi Kubota , Tadashi Nakayama , Hiroaki Masui , Yuji Yoshimura
IPC分类号： C21D8/12 , H01F1/147
CPC分类号： H01F1/14775 , C21D8/1244 , C21D8/1205 , C21D8/1222 , C21D8/1266
摘要： A method of producing non-oriented electrical steel sheet comprising the steps of preparing steel comprising, by weight, up to 2.5% silicon, up to 1.0% aluminum and up to 2.5% (Si+2Al), with the remainder being iron and unavoidable impurities, hot rolling and cold rolling the steel to a final thickness and following this by finish annealing, wherein the average cooling rate between Ar.sub.3 and Ar.sub.1 during cooling transformation (.gamma..fwdarw..alpha.) of the steel is controlled to be 50.degree. C./s or less.
摘要翻译：一种制造无方向性电工钢板的方法，其特征在于，包括以下步骤：制备钢，其中重量含有至多2.5％的硅，至多1.0％的铝和至多2.5％（Si + 2Al），余量为铁，并且不可避免杂质，热轧和冷轧至最终厚度，然后通过最终退火，其中钢的冷却转变（γ-α）期间Ar 3和Ar 1之间的平均冷却速率被控制在50℃/ s以下。

4. 发明授权

US07833360B2 Method of producing grain-oriented electrical steel sheet very excellent in magnetic properties 有权
标题翻译：制造磁特性优异的晶粒取向电工钢板的方法
公开(公告)号：US07833360B2
公开(公告)日：2010-11-16
申请号：US12224709
申请日：2007-01-12
申请人： Tomoji Kumano , Shyuichi Yamazaki , Osamu Tanaka
发明人： Tomoji Kumano , Shyuichi Yamazaki , Osamu Tanaka
IPC分类号： H01F1/147
CPC分类号： C23C8/02 , B21B3/02 , C21D8/12 , C21D8/1261 , C21D8/1272 , C21D9/46 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/20 , C23C8/26 , C23C8/80 , H01F1/14775
摘要： The invention provides a method of producing a grain-oriented electrical steel sheet of the complete solid solution nitrided type that is good in glass film formation and excellent in magnetic properties, which method comprises: C: 0.025 to 0.09%, hot-rolling the steel slab containing Si: 2.5 to 4.0% and acid-soluble Al into a hot-rolled steel strip; controlling the rate at which N contained in the hot-rolled steel strip is precipitated as AlN to a precipitation rate of 20% or less; conducting hot-rolled strip annealing and cold rolling conducting decarburization-annealing combined with primary recrystallization by during the former part of the process in an atmosphere whose PH2O/PH2 is 0.30 to 0.70 and then during the latter part thereof in an atmosphere whose PH2O/PH2 is 0.20 or less, thereby making the circular equivalent average grain diameter of the primary recrystallization grains 7 μm to less than 18 μm; nitriding the strip as it travels in a mixed gas of hydrogen, nitrogen and ammonia; controlling the steel strip oxygen concentration before secondary recrystallization annealing calculated based on strip thickness of 0.30 mm (oxygen content: So) to 450 ppm to 700 ppm inclusive; applying a coat of annealing separator; and then conducting secondary recrystallization annealing in an atmosphere that, while the temperature at the hottest coil outer periphery point is between room temperature and 950° C., is controlled to a nitrogen atmosphere containing oxygen: 25 to 75% wherein the balance is hydrogen and PH2O/PH2 is 0.01 to 0.15.
摘要翻译：本发明提供了一种制备完全固溶氮化型的方向性电磁钢板的方法，该方法具有良好的玻璃成膜性和优异的磁性能，该方法包括：C：0.025〜0.09％，热轧钢含有Si：2.5〜4.0％的板坯和酸溶性Al成为热轧带钢; 控制热轧钢带中所含的N作为AlN析出的析出速度为20％以下; 在前一部分工艺中，在PH2O / PH2为0.30〜0.70的气氛中进行热轧带退火和冷轧进行脱碳退火，再结合一次再结晶，然后在其后半部分，在PH2O / PH2 为0.20以下，从而使一次再结晶晶粒的圆周当量平均粒径为7μm〜小于18μm; 当条带在氢，氮和氨的混合气体中流动时氮化; 基于条带厚度为0.30mm（氧含量：So）计算出的二次再结晶退火前的钢带氧浓度为450ppm〜700ppm，涂一层退火分离器; 然后在最热线圈外周点的温度在室温〜950℃之间的气氛中进行二次再结晶退火，控制在含有氧的氮气氛中：25〜75％，其中余量为氢， PH2O / PH2为0.01〜0.15。

5. 发明申请

US20090044881A1 Grain-Oriented Electrical Steel Sheet Extremely Excellent in Magnetic Properties and Method of Production of Same 有权
标题翻译：面向电磁钢板的磁性能极好，其制作方法
公开(公告)号：US20090044881A1
公开(公告)日：2009-02-19
申请号：US11921369
申请日：2006-05-19
申请人： Tomoji Kumano , Kenichi Murakami , Yoshiyuki Ushigami
发明人： Tomoji Kumano , Kenichi Murakami , Yoshiyuki Ushigami
IPC分类号： C21D8/00 , C22C38/02
CPC分类号： H01F1/16 , C21D8/12 , C21D8/1205 , C21D8/1244 , C21D8/1261 , C21D8/1272 , C21D2201/05 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/16 , C22C38/60 , C23C8/02 , C23C8/80 , H01F1/14791
摘要： Reheating a grain-oriented electrical steel sheet slab comprising predetermined components to 1280° C. or more and a solid solution temperature of inhibitor substances or more, hot rolling, annealing, and cold rolling it, decarburization annealing it, nitriding it in a strip running state, coating an annealing separator, and finish annealing it during which making a precipitation ratio of N as AlN after hot rolling 20% or less, making a mean grain size of primary recrystallization 7 μm to less than 20 μm, and making a nitrogen increase ΔN in the nitridation within a range of Equation (1) and making nitrogen contents σN1 and σN2 (front and back, mass %) of a 20% thickness portion of one surface of the steel strip (sheet) within a range of Equation (2): 0.007−([N]−14/48×[Ti])≦ΔN≦[solAl]×14/27−([N]−14/48×[Ti])+0.0025 Equation (1) |σN1−σN2|/ΔN≦0.35 Equation (2)
摘要翻译：将包含预定成分的晶粒取向电工钢板坯加热至1280℃以上，抑制物质的固溶温度以上，热轧，退火，冷轧后，进行脱碳退火，将其在条带运行中氮化状态，涂覆退火分离剂，并且在热轧后使NN作为AlN的析出比为20％以下进行最终退火，使一次再结晶的平均粒径为7μm〜小于20μm，并使氮增加在等式（1）的范围内的氮化中的ΔN和在钢带（片材）的一个表面的20％厚度部分的氮含量σigmaN1和σN2（前后质量％）在等式（2）的范围内）：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.007 - （[N] -14 / 48x [Ti]）<= DeltaN <= [solAl] x14 / （[N] -14 / 48x [Ti]）+ 0.0025等式（1）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formul ae description =“In-line Formulas”end =“lead”？> | sigmaN1-sigmaN2 | / DeltaN <= 0.35等式（2）<？in-line-formula description =“In-line Formulas”end =“tail” ？>

6. 发明授权

US08202374B2 Method of treating steel for grain-oriented electrical steel sheet and method of manufacturing grain-oriented electrical steel sheet 有权
标题翻译：晶粒取向电工钢板钢的处理方法及晶粒取向电工钢板的制造方法
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℃。

7. 发明授权

US07471182B2 Core having superior end face insulation and method of treating core end faces to give insulation coating 有权
标题翻译：具有优异的端面绝缘的芯和处理芯端面以提供绝缘涂层的方法
公开(公告)号：US07471182B2
公开(公告)日：2008-12-30
申请号：US11652893
申请日：2007-01-12
申请人： Tomoji Kumano , Chikara Kaido , Hiroyasu Fujii , Kazutaka Higashine , Osamu Tanaka , Norikazu Fujii , Kazufumi Hanzawa , Masayoshi Tanaka , Yuji Kubo , Noriko Yamada
发明人： Tomoji Kumano , Chikara Kaido , Hiroyasu Fujii , Kazutaka Higashine , Osamu Tanaka , Norikazu Fujii , Kazufumi Hanzawa , Masayoshi Tanaka , Yuji Kubo , Noriko Yamada
IPC分类号： H01F27/24
CPC分类号： C23C18/02 , C23C18/122 , C23C18/1254 , C23C18/127 , H02K1/04 , H02K3/30 , H02K15/10
摘要： A means for treating the end faces of a core which is used for an electrical apparatuses and etc., to give insulation extremely superior in effect of improvement of the insulation, corrosion resistance, adhesiveness, heat resistance, and magnetic properties at a low temperature in a short time without cleaning for removing punching oil, annealing, or other pre-treatment; a core having an insulation coating comprised of a dry film of a pure silicone polymer, modified silicone polymer, and/or mixed silicone polymer as a silicone compound on the core end faces and having an average film thickness of at least 0.5 μm, a breakdown voltage of at least 30V, and a heat resistance in the air of at least 400° C.; and a method of production comprised of forming a core, then dipping it in or spraying it by one or more types of a pure silicone polymer, modified silicone polymer, and/or mixed silicone polymer as an insulation coating.
摘要翻译：用于处理用于电气设备等的芯的端面的装置，以提供在提高绝缘性，耐腐蚀性，粘合性，耐热性和低温下的磁特性方面非常优异的绝缘性短时间内不用清洗去除冲孔油，退火或其他预处理; 具有由核心端面上的纯硅氧烷聚合物的干膜，改性硅氧烷聚合物和/或硅氧烷化合物的混合硅氧烷聚合物构成的绝缘涂层的芯体，其平均膜厚度至少为0.5μm，击穿电压至少为30V，空气中的耐热性至少为400℃。以及一种生产方法，包括形成核心，然后将其浸入或喷射由一种或多种类型的纯硅氧烷聚合物，改性硅氧烷聚合物和/或混合硅氧烷聚合物作为绝缘涂层。

8. 发明申请

US20070188289A1 Core having superior end face insulation and method of treating core end faces to give insulation coating 有权
公开(公告)号：US20070188289A1
公开(公告)日：2007-08-16
申请号：US11652893
申请日：2007-01-12
申请人： Tomoji Kumano , Chikara Kaido , Hiroyasu Fujii , Kazutaka Higashine , Osamu Tanaka , Norikazu Fujii , Kazufumi Hanzawa , Masayoshi Tanaka , Yuji Kubo , Noriko Yamada
发明人： Tomoji Kumano , Chikara Kaido , Hiroyasu Fujii , Kazutaka Higashine , Osamu Tanaka , Norikazu Fujii , Kazufumi Hanzawa , Masayoshi Tanaka , Yuji Kubo , Noriko Yamada
IPC分类号： H01F27/24
CPC分类号： C23C18/02 , C23C18/122 , C23C18/1254 , C23C18/127 , H02K1/04 , H02K3/30 , H02K15/10
摘要： A means for treating the end faces of a core which is used for an electrical apparatuses and etc., to give insulation extremely superior in effect of improvement of the insulation, corrosion resistance, adhesiveness, heat resistance, and magnetic properties at a low temperature in a short time without cleaning for removing punching oil, annealing, or other pre-treatment; a core having an insulation coating comprised of a dry film of a pure silicone polymer, modified silicone polymer, and/or mixed silicone polymer as a silicone compound on the core end faces and having an average film thickness of at least 0.5 μm, a breakdown voltage of at least 30V, and a heat resistance in the air of at least 400° C.; and a method of production comprised of forming a core, then dipping it in or spraying it by one or more types of a pure silicone polymer, modified silicone polymer, and/or mixed silicone polymer as an insulation coating.

9. 发明授权

US4543134A Process for producing grain-oriented electrical steel sheet having both improved magnetic properties and properties of glass film 失效
标题翻译：具有改善磁性能和玻璃膜特性的晶粒取向电工钢板的制造方法
公开(公告)号：US4543134A
公开(公告)日：1985-09-24
申请号：US667743
申请日：1984-11-02
申请人： Osamu Tanaka , Shozaburo Nakashima , Takashi Nagano , Tomoji Kumano , Yoshitaka Hiromae
发明人： Osamu Tanaka , Shozaburo Nakashima , Takashi Nagano , Tomoji Kumano , Yoshitaka Hiromae
IPC分类号： C23C22/00 , C21D1/68 , C21D1/70 , C21D8/12 , C21D9/46 , H01F1/16 , H01F1/18 , H01F1/04
CPC分类号： H01F1/18 , C21D1/70 , C21D8/1283 , C23D5/10
摘要： The present invention provides an annealing separator comprising from 0.05 to 2.0 parts by weight of antimony sulfate based on 100 parts by weight of magnesium oxide, and at least one chloride selected from the group consisting of Sb, Sr, Ti, and Zr chlorides in a chlorine amount of from 5 to 20% by weight based on 100% of the chloride and antimony sulfate, and occasionally comprises Ti oxide in an amount of from 0.5 to 10 parts.The annealing separator is applied on the decarburization annealed strip, and improves both the magnetic properties and properties of glass film, in the production of a grain-oriented electrical steel sheet.
摘要翻译：本发明提供一种退火分离剂，其包含0.05至2.0重量份的硫酸锑，基于100重量份的氧化镁和至少一种选自Sb，Sr，Ti和Zr的氯化物，其中氯量为5〜20重量％，基于氯化物和硫酸锑的100％，有时含有0.5〜10重量份的Ti氧化物。在取向电工钢板的制造中，将退火分离剂涂布在脱碳退火带上，提高玻璃膜的磁特性和性能。

10. 发明申请

US20110155285A1 MANUFACTURING METHOD OF GRAIN-ORIENTED ELECTRICAL STEEL SHEET 有权
标题翻译：面向电工钢板的制造方法
公开(公告)号：US20110155285A1
公开(公告)日：2011-06-30
申请号：US13060647
申请日：2009-09-08
申请人： Tomoji Kumano , Yoshiyuki Ushigami , Shuichi Nakamura , Yohichi Zaizen
发明人： Tomoji Kumano , Yoshiyuki Ushigami , Shuichi Nakamura , Yohichi Zaizen
IPC分类号： C23C8/26 , C23C8/02 , C23C8/80
CPC分类号： H01F1/16 , C21D6/008 , C21D8/1222 , C21D8/1233 , C21D8/1272 , C21D8/1283 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C23C8/24 , C23C8/26 , C23C8/80 , F27B9/28 , F27B9/30
摘要： A slab with a predetermined composition is heated at 1280° C. to 1390° C. to make a substance functioning as an inhibitor to be solid-solved (step S1). Next, the slab is hot-rolled to obtain a steel strip (step S2). The steel strip is annealed to form a primary inhibitor in the steel strip (step S3). Next, the steel strip is cold-rolled once or more (step S4). Next, the steel strip is annealed to perform decarburization and to cause primary recrystallization (step S5). Next, nitriding treatment is performed on the steel strip in a mixed gas of hydrogen, nitrogen and ammonia under a state where the steel strip runs, to form a secondary inhibitor in the steel strip (step S6). Next, the steel strip is annealed to induce secondary recrystallization (step S7).
摘要翻译：将具有预定组成的板坯在1280℃加热至1390℃，以使作为固溶体的抑制剂起作用的物质（步骤S1）。接下来，对板坯进行热轧以获得钢带（步骤S2）。钢带退火以在钢带中形成初级抑制剂（步骤S3）。接下来，将钢带冷轧一次以上（步骤S4）。接着，退火钢带进行脱碳，进行一次再结晶（步骤S5）。接下来，在钢带运行的状态下，在氢气，氮气和氨的混合气体中对钢带进行氮化处理，在钢带中形成二次抑制剂（步骤S6）。接着，对钢带进行退火以引起二次再结晶（步骤S7）。

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