公开(公告)号：EP2821511A4

公开(公告)日：2015-09-30

申请号：EP12869907

申请日：2012-12-11

申请人： BAOSHAN IRON & STEEL

发明人： XIE SHISHU ,  LIU XIANDONG ,  CHEN XIAO ,  HEI HONGXU ,  WANG BO ,  MA AIHUA ,  ZOU LIANG ,  ZHANG HUAWEI ,  CAO WEI ,  ZHANG FENG ,  LIU JUNLIANG

IPC分类号： C21D8/12 ,  C21C5/28 ,  C21D1/26 ,  C21D6/00 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/147

CPC分类号： H01F1/14775 ,  C21C7/068 ,  C21D6/008 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/14791

摘要： The present invention provides a non-oriented silicon steel with excellent magnetic properties and a manufacturing process therefor. During the manufacturing process of the present invention, the temperature T of the molten steel of steel tapped from a converter during steelmaking and the carbon content [C] and the free oxygen content [O] comply with the following formula: 7.27x10 3

摘要翻译： 本发明提供一种磁性优异的非取向硅钢及其制造方法。 在本发明的制造过程中，在炼钢期间从转炉中抽出的钢水的温度T和碳含量[C]和游离氧含量[O]符合下列公式：7.27×10 3 [ O] [C] e（-5000 / T）‰2.99×10 4，最终退火步骤在短时间内使用低温下的拉伸退火。 通过本发明的制造方法可以获得铁损低的铁取向性优异，铁损各向异性优异的非取向硅钢。

公开(公告)号：EP2532758A4

公开(公告)日：2014-07-02

申请号：EP11835498

申请日：2011-04-27

申请人： BAOSHAN IRON & STEEL

发明人： MA AIHUA ,  WANG BO ,  XIE SHISHU ,  HU ZHANYUAN ,  ZOU LIANG ,  WANG ZITAO ,  ZHU YUHUA ,  HUANG JIE ,  JIN BINGZHONG ,  LIU XIANDONG

IPC分类号： C21D8/12 ,  C22C38/60 ,  H01F1/16

CPC分类号： C21D8/005 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C22C38/60 ,  H01F1/16

摘要： A manufacture method of high-efficiency non-oriented silicon steel with excellent magnetic property, which comprises the following steps: 1) smelting and casting; chemical compositions of non-oriented silicon steel, by weight percent, are: C‰¤ 0.0040%, Si:0.1ˆ¼0.8%, Al:0.002ˆ¼1.0%, Mn:0.10ˆ¼1.50%, P:‰¤0.2%, Sb:0.04ˆ¼0.08%, S‰¤0.0030%, N‰¤0.0020%, Ti ‰¤ 0.0020%, and the rest is Fe and unavoidable inclusions; molten steel in accordance with the above compositions is smelted and then casted into billets; 2) hot-rolling and pickling; heating temperature for slab is 1100 °C~1150 °C and finish-rolling temperature is 860 °C ˆ¼920 °C; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30xSb%)s ‰¤t‰¤7s; thereafter reeling at a temperature ‰¥720°C ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70ˆ¼78%; 4) annealing; heating up the cold-rolled plate to 800ˆ¼1000 °C at heating rate of ‰¥ 15 °C/s, and holding time is 10~25s. Under the precondition to ensure magnetic properties, this invention implements low cost manufacture of high efficiency electric steel by adding elements advantageous to favorable texture during steel making, controlling contents of adverse elements and coordinating air cooling time control during hot-rolling with high temperature reeling.

公开(公告)号：EP2832888A4

公开(公告)日：2015-09-30

申请号：EP12873168

申请日：2012-03-29

申请人： BAOSHAN IRON & STEEL

发明人： ZOU LIANG ,  WANG BO ,  LIU XIANDONG ,  MA AIHUA ,  XIE SHISHU ,  HEI HONGXU

IPC分类号： C22C38/04 ,  C21C7/00 ,  C21C7/06 ,  C21C7/064 ,  C21D8/12 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/147 ,  H01F1/16

CPC分类号： C21D8/1261 ,  C21C7/0006 ,  C21C7/0645 ,  C21D8/12 ,  C21D8/1205 ,  C21D8/1233 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/14791 ,  H01F1/16

摘要： An unoriented silicion steel having high magnetic conductivity and low iron loss at a working magnetic density of 1.0-1.5 T and method for manufacturing same. By proper deoxidation control in a RH refining and high-temperature treatment for a short time in a normalizing step, the method can reduce the amount of inclusions in the silicon steel and improve grain shape, so as to improve the magnetic conductivity and iron loss of the unoriented silicon steel at a magenetic density of 1.0-1.5 T.

公开(公告)号：EP2824193A4

公开(公告)日：2016-01-27

申请号：EP12870516

申请日：2012-03-26

申请人： BAOSHAN IRON & STEEL

发明人： HEI HONGXU ,  WANG BO ,  XIE SHISHU ,  LIU XIANDONG ,  YANG GUOHUA ,  YANG YONGJIE ,  MA AIHUA ,  LI XIAOLIN ,  ZOU LIANG ,  ZHANG HUAWEI

IPC分类号： C21D8/02 ,  C21D9/56

CPC分类号： C21D8/1261 ,  C21D1/28 ,  C21D1/34 ,  C21D1/76 ,  C21D6/008 ,  C21D8/1222 ,  C21D8/1233 ,  C21D9/46 ,  H01F41/00

摘要： A method for producing a silicon steel normalizing substrate comprises: steelmaking, hot rolling and normalizing steps. The normalizing step uses a normalizing furnace having a nonoxidizing heating furnace section. The nonoxidizing heating fur - nace section comprises more than 3 furnace zones. An energy investment ratio of the furnace zones used in the nonoxidizing heating furnace section is adjusted, so as to control an excess coefficient ± of the nonoxidizing heating furnace section to be within a range of 0.8‰¤±

摘要翻译： 一种硅钢标准化衬底的制造方法包括：炼钢，热轧和归一化步骤。 归一化步骤使用具有非氧化加热炉部分的归一化炉。 非氧化加热毛细管段包括3个以上的炉区。 调整在非氧化加热炉部中使用的炉区的能量投入比，以将非氧化加热炉部的过剩系数±控制在0.8‰±{1.0以下的范围内。

公开(公告)号：EP2508629A4

公开(公告)日：2016-11-30

申请号：EP11835489

申请日：2011-04-14

申请人： BAOSHAN IRON & STEEL

发明人： WANG ZITAO ,  WANG BO ,  XIE SHISHU ,  JIN BINGZHONG ,  MA AIHUA ,  ZOU LIANG ,  ZHU YUHUA ,  HU ZHANYUAN ,  CHEN XIAO

IPC分类号： C21D8/12 ,  C21D1/00 ,  C21D6/00 ,  C21D8/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/16

CPC分类号： C22C38/00 ,  C21D1/00 ,  C21D6/008 ,  C21D8/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  H01F1/16

公开(公告)号：EP2826882A4

公开(公告)日：2015-11-18

申请号：EP12871249

申请日：2012-03-27

申请人： BAOSHAN IRON & STEEL

发明人： MA AIHUA ,  WANG BO ,  LIU XIANDONG ,  ZOU LIANG ,  XIE SHISHU ,  HEI HONGXU

IPC分类号： C22C38/06 ,  B21B1/00 ,  C21D6/00 ,  C21D8/12 ,  C21D9/46 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/14775 ,  B21B1/00 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/001 ,  C22C38/004 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/60 ,  H01F1/14791 ,  H01F1/16

摘要： Disclosed are a non-oriented electrical steel plate with low iron loss and high magnetic conductivity and a manufacturing process therefor. The casting blank of the steel plate comprises the following components: Si: 0.1-2.0 wt%, Al: 0.1-1.0 wt%, Mn: 0.10-1.0 wt%, C: ‰¤ 0.005 wt%, P: ‰¤ 0.2 wt%, S: ‰¤ 0.005 wt%, N: ‰¤ 0.005 wt%, the balance being Fe and unavoidable impurities. The magnetic conductivity of the steel plate meets the following relationship formula: µ 10 +µ 13 +µ 15 ‰¥13982 - 586.5P 15/50 ; µ 10 +µ 13 +µ 15 ‰¥ 10000, wherein P 15/50 is the iron loss at a magnetic induction intensity of 1.5 T at 50 Hz; µ 10 , µ 13 , and µ 15 are relative magnetic conductivities at induction intensities of 1.0 T, 1.3 T, and 1.5 T at 50 Hz, respectively. The steel plate can be used for manufacturing highly effective and ultra-highly effective electric motors.

摘要翻译： 公开了一种具有低铁损和高磁导率的无取向电工钢板及其制造方法。 钢板的铸坯由以下成分组成：Si：0.1〜2.0重量％，Al：0.1〜1.0重量％，Mn：0.10〜1.0重量％，C：‰0.005重量％，P：‰0.2重量％ ％，S：‰0.005％，N：‰0.005％，余量为Fe和不可避免的杂质。 钢板的磁导率满足下列关系式：μ10 +μ13 +μ15‰¥13982 - 586.5P 15/50; μ10 +μ13 +μ15‰¥10000，其中P 15/50是在50Hz的磁感应强度为1.5T时的铁损; μ10，μ13和μ15分别为在50Hz时的感应强度为1.0T，1.3T和1.5T时的相对磁导率。 钢板可用于制造高效，超高效的电动机。