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    • 1. 发明专利
    • Non-oriented magnetic steel sheet and production method therefor
    • 非磁性磁钢板及其生产方法
    • JP2012036458A
    • 2012-02-23
    • JP2010178260
    • 2010-08-09
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • TADA HIROTOSHITANAKA ICHIROYASHIKI HIROYOSHI
    • C22C38/00C21D8/12C22C38/60H01F1/16
    • PROBLEM TO BE SOLVED: To provide a non-oriented magnetic steel sheet which is suitably used for stator core of a high efficiency split core-type motor, and to provide a production method for the non-oriented magnetic steel sheet.SOLUTION: The non-oriented magnetic steel sheet has a chemical composition comprising, by mass, 0.005% or less of C, 1.5 to 4.0% of Si, 0.05% to 3.0% of Mn, 0.1 to 3.0% of sol.Al, 0.1% or less of S and 0.01% or less of N, and one or two kinds selected from the group comprising 0.1% or less of Sn and 0.1% or less of Sb, and the balance Fe with unavoidable impurities. The non-oriented magnetic steel sheet has: a steel matrix in which the average crystal grain diameter is 40 to 200 μm; magnetic properties satisfying B≥1.670, (2×B+B)/3≥1.660, B/B≥1.020, and {(2×B+B)/3}/{(B+2×B+B)/4}≥1.015; and a sheet thickness of 0.10 to 0.35 mm.
    • 要解决的问题:提供一种适用于高效率分裂铁心型电动机的定子铁心的无取向电磁钢板,并提供一种非取向磁性钢板的制造方法。 解决方案:无取向电磁钢板具有以下组成:C:0.005%以下,Si:1.5〜4.0%,Mn:0.05〜3.0%,溶胶0.1〜3.0%。 Al:0.1%以下,N:0.01%以下,Sn:0.1%以下,Sb:0.1%以下的一种或两种以上,余量为不可避免的杂质。 无取向电磁钢板具有:平均晶粒直径为40〜200μm的钢基体; 满足B 50L ≥1.670的磁特性,(2×B 50L + B 50C < B> SBB =“POST”> 50C ≥1.020,ä(2×B 50L + B 50C )/ 3} /ä(B 50L + 2×B < SB POS =“POST”> 50D + B 50C )/ 4}≥1.015; 板厚为0.10〜0.35mm。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Method for manufacturing non-oriented electromagnetic steel sheet for rotor
    • 用于制造转子非定向电磁钢板的方法
    • JP2007162097A
    • 2007-06-28
    • JP2005361907
    • 2005-12-15
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • TANAKA ICHIROFUJIMURA HIROSHINITOMI HIROKATSUYASHIKI HIROYOSHINISHIDA KOJITAKAMARU HIROKI
    • C21D8/12C22C38/00C22C38/14C22C38/60H01F1/16
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a non-oriented electromagnetic steel sheet which suppresses an increase in an alloy cost, has superior surface properties, and has both of excellent mechanical properties and magnetic properties required to a rotor of a motor which rotates at a high speed. SOLUTION: A steel slab for the steel sheet includes 0.06% or less C, 3.5% or less Si, 0.05% to 3.0% Mn, 2.5% or less Al, 0.30% or less P, 0.04% or less S, 0.02% or less N, more than 0.02% Nb, and Nb, Ti, Zr, V and Al in a range of satisfying the expressions of Nb/93+Zr/91+Ti/48+V/51-(C/12+N/14)≤0 and Zr/91+Ti/48+Al/27-N/14>0. The method for manufacturing the non-oriented electromagnetic steel sheet comprises the steps of: heating the steel slab to a temperature between 1,100°C and 1,300°C, then rough-hot-rolling the slab at a cumulative reduction rate of 80% or higher to make a rough bar; and hot-rolling the rough bar, while keeping a temperature of the rough bar after the rough hot rolling step and before a finish hot rolling step to 950°C or higher. COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:为了提供抑制合金成本增加的无取向电磁钢板的制造方法,具有优异的表面性能,并且具有转子所需的优异的机械性能和磁性能 高速旋转的马达。 钢板的钢板包括0.06%以下的Si,3.5%以下的Si,0.05%〜3.0%的Mn,2.5%以下的Al,0.30%以下的P,0.04%以下的S, 在Nb / 93 + Zr / 91 + Ti / 48 + V / 51-(C / 12)的表达范围内,Nb,0.02%以下的Nb,Nb,Ti,Zr,V, + N / 14)≤0和Zr / 91 + Ti / 48 + Al / 27-N / 14> 0。 无取向电磁钢板的制造方法包括以下步骤:将钢坯加热至1100℃至1300℃的温度,然后以80%或更高的累积压缩率对板坯进行粗热轧 做一个粗暴的酒吧 并且在粗加热步骤之后并且在精热轧步骤之前将粗棒的温度保持在950℃以上的同时热轧粗棒。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • Non-oriented electromagnetic steel sheet and manufacturing method therefor
    • 非定向电磁钢板及其制造方法
    • JP2005187846A
    • 2005-07-14
    • JP2003427526
    • 2003-12-24
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • FUJIMURA HIROSHIYASHIKI HIROYOSHI
    • C21D8/12C22C38/00C22C38/60H01F1/16
    • Y02P10/212
    • PROBLEM TO BE SOLVED: To provide a non-oriented electromagnetic steel sheet which, though containing much C, has such magnetic properties of an iron core as not to deteriorate by aging due to a temperature rise of the iron core during the operation of an electrical machinery and apparatus. SOLUTION: In order to achieve the object, the non-oriented electromagnetic steel sheet comprises, by mass%, 0.0026-0.010% C, 4.0% or less Si, 0.10-2.0% Mn, 0.20% or less P, 0.006% or less S, 0.20-3.0% Al, 0.0020% or more but less than 0.040% V, 0.003% or less Ti, 0.0050% or less N, 0.010% or less B, 0.20% or less Sn+Sb, 0.010% or less Ca and the balance substantially Fe with unavoidable impurities. COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种无取向的电磁钢板,其虽然含有大量C,但具有铁芯的磁性能,不会由于操作期间铁芯的温度上升而老化而劣化 的电机和设备。 <方案>为了达到上述目的,无方向性电磁钢板以质量%计含有C:0.0026-0.010%,Si:4.0%以下,Mn:0.10〜2.0%,P:0.20%以下,0.006 %以下S,0.20〜3.0%Al,0.0020%以上且0.040%以下,0.003%以下Ti,0.0050%以下N,0.010%以下B,0.20%以下Sn + Sb,0.010% 或更少的Ca,余量基本上为Fe,不可避免的杂质。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Non-oriented magnetic steel sheet and production method therefor
    • 非磁性磁钢板及其生产方法
    • JP2012036474A
    • 2012-02-23
    • JP2010179461
    • 2010-08-10
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • TADA HIROTOSHITANAKA ICHIROYASHIKI HIROYOSHI
    • C22C38/00B21B3/02C21D8/12C22C38/06C22C38/60H01F1/16
    • PROBLEM TO BE SOLVED: To provide a non-oriented magnetic steel sheet which is almost free from distortion at butting parts due to shrinkage fit, and to provide a production method for the non-oriented magnetic steel sheet.SOLUTION: The non-oriented magnetic steel sheet has a chemical composition comprising, by mass, 0.005% or less of C, 1.5 to 4.0% of Si, 3% or less of Mn, 3.0% or less of sol.Al, 0.2% or less of P, 0.01% or less of S and 0.01% or less of N and the balance Fe with unavoidable impurities, and further satisfying Si+0.5×sol.Al+0.3×Mn+10×P≥2.5. The non-oriented magnetic steel sheet has: a steel matrix in which the average crystal grain diameter is 40 to 180 μm and the ratio of the number of crystal grains penetrating in the sheet thickness direction is ≤30%; a texture in which the {011} orientation intensity Iwith respect to the orientation intensity of random texture is 0.1-10.0; and a sheet thickness of 0.10 to 0.30 mm.
    • 要解决的问题:提供一种由于收缩配合而在对接部件几乎没有变形的无取向电磁钢板,并且提供了一种非取向磁性钢板的制造方法。 解决方案:未取向的电磁钢板具有以下质量:C:0.005%以下,Si:1.5〜4.0%,Mn:3%以下,sol:Al:3.0%以下 ,0.2%以下的P,0.01%以下的S和0.01%以下的N,余量为Fe与不可避免的杂质,进一步满足Si + 0.5×sol.Al + 0.3×Mn + 10×P≥2.5。 无取向电磁钢板具有:平均结晶粒径为40〜180μm的钢基体,并且在板厚方向上贯通的晶粒数比例≤30%。 相对于随机纹理的取向强度,ä011} <100>取向强度I ä011} <100> 的纹理为0.1-10.0; 板厚为0.10〜0.30mm。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Method for manufacturing non-oriented electromagnetic steel sheet
    • 制造非定向电磁钢板的方法
    • JP2012001772A
    • 2012-01-05
    • JP2010138583
    • 2010-06-17
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • TADA HIROTOSHIFUJIMURA HIROSHITANAKA ICHIROYASHIKI HIROYOSHIIWAMOTO SHIGEO
    • C21D8/12C22C38/00C22C38/06C22C38/60H01F1/16H01F41/02
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a non-oriented electromagnetic steel sheet, suitable for a stator core in a high efficient dividing stator core type motor and having good magnetic characteristic in the rolling direction.SOLUTION: The method is characteristic in that there are provided: (A) a first cold-rolling step, in which the cold-rolling is applied at the rolling-reduction ratio of 45-75% to a hot-rolled plate; (B) an intermediate annealing step, in which to the cold-rolled steel sheet obtained with the first cold-rolling step, the intermediate annealing for holding to the temperature zone of 900-1,150°C for 1 sec to 10 min, is applied; and (C) a second cold-rolling step, in which to the intermediate annealed steel sheet obtained with the above intermediate annealing step, the cold-rolling is applied, wherein the cold-rolling having the rolling-reduction ratio of 50-85%, is applied, so that the total rolling-reduction ratio in the above first cold-rolling step and the above second cold-rolling step, becomes 83.0-92%; and (D) a finish-annealing step for applying the finish-annealing holding in the temperature zone of 900-1,200°C to the cold-rolled steel sheet obtained with the above second cold-rolling step.
    • 解决的问题:提供一种适用于高效分割定子铁心型电动机中的定子铁心并且在轧制方向上具有良好磁特性的无取向电磁钢板的制造方法。 解决方案:该方法的特征在于:(A)第一冷轧步骤,其中以45-75%的轧制 - 减速比施加冷轧至热轧板 ; (B)中间退火工序,对于通过第一冷轧工序得到的冷轧钢板,施加保持在900-1,150℃的温度区域1秒至10分钟的中间退火, ; 和(C)第二冷轧工序,对于通过上述中间退火工序得到的中间退火钢板,进行冷轧,其中,将轧制压下率为50〜85%的冷轧, ,使上述第一冷轧工序和上述第二冷轧工序的总轧制压下率为83.0〜92%。 和(D)在900〜1200℃的温度区域中对最终冷轧工序得到的冷轧钢板进行最终退火保持的精加工退火工序。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Non-oriented electromagnetic steel sheet
    • 非对称电磁钢板
    • JP2010185119A
    • 2010-08-26
    • JP2009031195
    • 2009-02-13
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • TADA HIROTOSHIFUJIMURA HIROSHIYASHIKI HIROYOSHI
    • C22C38/00C22C38/06H01F1/16
    • PROBLEM TO BE SOLVED: To provide a non-oriented electromagnetic steel sheet with low core loss, which is manufactured without needing to increase Si content in the steel sheet to more than 4 wt.% or use a special facility. SOLUTION: The non-oriented electromagnetic steel sheet has a chemical composition comprising, by mass%, 0.005% or less C, 3.5% or less Si, 3.0% or less sol. Al, 3.5% or less Mn, 0.1% or less P, 0.005% or less S, 0.005% or less N and the balance Fe with impurities; and has such specific resistance ρ (μΩ cm) and spontaneous magnetization Is (T) as to satisfy expression (1); ρ≥58.0 and expression (2); Is≥2.34-0.006×ρ, respectively at room temperature. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种低磁芯损耗的无取向电磁钢板,其不需要将钢板中的Si含量增加到大于4重量%,或者使用特殊设备。 解决方案:无取向电磁钢板具有以质量%计含有C:0.005%以下,Si:3.5%以下,Si:3.0%以下的化学成分。 Al,3.5%以下Mn,0.1%以下P,0.005%以下S,0.005%以下N,余量Fe与杂质; 并且具有满足式(1)的电阻ρ(μΩcm)和自发磁化Is(T); ρ≥58.0和表达式(2); 分别在室温下≥2.34-0.006×ρ。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Non-oriented electrical steel sheet for rotating machine, the rotating machine, and method of manufacturing the same
    • 旋转机非旋转电动钢板,旋转机及其制造方法
    • JP2010121150A
    • 2010-06-03
    • JP2008293775
    • 2008-11-17
    • Sumitomo Metal Ind Ltd住友金属工業株式会社
    • TANAKA ICHIROFUJITA KAORUTAKAMARU HIROKIYASHIKI HIROYOSHI
    • C22C38/00C21D8/12C22C38/14C22C38/60
    • PROBLEM TO BE SOLVED: To provide a non-oriented electrical steel sheet which can be easily provided with excellent machining characteristics needed as a rotor and excellent magnetic characteristics needed as a stator, and a method of manufacturing the same.
      SOLUTION: The non-oriented electrical steel sheet for a rotating machine has the sheet thickness of 0.15-0.50 mm, and has a steel composition containing, by mass, ≤0.02% C, 1.0-4.0% Si, 0.05-3.0% Mn, ≤2.5% Al, ≤0.25% P, ≤0.01% S, ≤0.01% N and further, containing at least one kind of element selected from a group composed of Nb, Zr, Ti and V in a range satisfying 0 -3 , and the balance Fe with inevitable impurities. The non-oriented electrical steel sheet for a rotating machine has the steel structure in which the area ratio of recrystallized portion is
    • 要解决的问题:提供一种易于提供作为转子所需的优异加工特性的非取向电工钢板和作为定子所需的优异的磁特性及其制造方法。 解决方案:用于旋转机器的无取向电工钢板的板厚为0.15-0.50mm,并且具有质量≤0.02%的Si,1.0-4.0%的Si,0.05-3.0的钢组合物 %Mn,≤2.5%Al,≤0.25%P,≤0.01%S,≤0.01%N,并且还含有选自Nb,Zr,Ti和V中的至少一种元素,其范围为满足0 -3 ,余量为Fe与不可避免的杂质。 用于旋转机械的无取向电工钢板具有重结晶部的面积比<90%的钢结构,在将钢板在800℃下保持2小时的后热处理的情况下, 再结晶部的面积比变为100%。 版权所有(C)2010,JPO&INPIT