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：EP2826871A4

公开(公告)日：2015-11-18

申请号：EP12871183

申请日：2012-03-29

申请人： BAOSHAN IRON & STEEL

发明人： ZHANG HUAWEI ,  WU YAPING ,  GONG YU ,  SUN YEZHONG ,  HEI HONGXU

IPC分类号： C21D8/02 ,  B21B37/74 ,  C21D6/00 ,  C21D8/04 ,  C21D9/00 ,  C21D9/70

CPC分类号： H01F1/14766 ,  C21D1/26 ,  C21D6/00 ,  C21D6/008 ,  C21D8/021 ,  C21D8/041 ,  C21D8/1205 ,  C21D8/1216 ,  C21D8/1244 ,  C21D9/0081 ,  C21D9/70 ,  C21D2201/05 ,  C22C38/02 ,  H01F41/00

摘要： A hot rolled silicon steel producing method comprises: silicon steel slab heating process, rough rolling process and finish rolling process. The heating process comprises a pre-heating stage, a heating stage and a soaking stage. The pre-heating stage satisfies the following formula (1). In the formula, VTp is a temperature increasing rate, in the pre-heating stage, whose unit is °C/min; t is a total heating time of the slab in the heating furnace, and t=180-240min; and Tc is an initial temperature when the slab is put into the furnace, whose unit is °C. By using the foregoing formula, the heating process and the rough rolling process are changed, an occurrence rate of edge defects during the production of the hot rolled silicon steel can be reduced, and the hot rolled silicon steel with good surface quality can be produced. V Tp > 220 �¢ min t × 100 �¢ ° �¢ C T C + 200 �¢ ° �¢ C × 25 �¢ ° �¢ C / min

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。