公开(公告)号：EP2623566A4

公开(公告)日：2014-05-07

申请号：EP11827948

申请日：2011-04-13

申请人： BAOSHAN IRON & STEEL

发明人： XU YUNPENG ,  YANG YONGJIE ,  LI DENGFENG ,  JI YAMING ,  ZHAO ZIPENG ,  CHEN LINGYUN ,  CHEN XIAO ,  HUANG JIE

IPC分类号： C09D5/25 ,  C09D7/12 ,  C09D163/00

CPC分类号： C09D5/00 ,  C09D5/084 ,  C09D7/61 ,  C09D163/00 ,  H01B3/40

摘要： The present invention refers to a chromium-free insulation coating material for non-oriented silicon steel, comprising, by mass shares, the following components: metal dihydrogen phosphate salt of 100 shares, epoxy resin of 10~60 shares, naphthenate drier or isooctanoate metal salt drier of 0.001~10 shares, organic solvent of 0.001~100 shares and pure water of 60~2000 shares. The metal dihydrogen phosphate salt is Al(H 2 PO 4 )3, Mg(H 2 PO 4 ) 2 , Ca(H 2 PO 4 ) 2 or Zn(H 2 PO 4 ) 2 ; the epoxy resin is water- soluble epoxy resin or epoxy resin emulsion. Chromium-free insulation coating material of the present invention, after being coated on non-oriented silicon steel, renders highly transparent appearance, and has excellent insulativity, corrosion resistance, adhesiveness, weldability and manufacturability, so as to eliminate defects of the existing chromium-free coating, such as sticky and un-wear-resistant and to meet environment protection requirements.

公开(公告)号：EP2623626A4

公开(公告)日：2017-11-22

申请号：EP11827949

申请日：2011-04-14

申请人： BAOSHAN IRON & STEEL

发明人： ZHANG FENG ,  CHEN XIAO ,  CAO WEI ,  SUN YEZHONG ,  MA CHANGSONG ,  ZHU JIANRU ,  CHEN ZHUOLEI ,  LIU XIANDONG

IPC分类号： C22C38/06 ,  B22D11/18 ,  B22D11/22 ,  C21D6/00 ,  C21D8/02 ,  C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  H01F1/16

CPC分类号： B22D25/00 ,  B22D11/182 ,  B22D11/225 ,  C21D6/008 ,  C21D8/12 ,  C21D8/1205 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1272 ,  C21D8/1277 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  H01F1/16

摘要： A non-oriented electrical steel sheet without corrugated defect and a manufacturing method thereof is provided, the weight percentage of the chemical composition of the non-oriented electrical steel sheet is that C is no more than 0.005%, Si is 1.2-2.2%, Mn is 0.2-0.4%, P is no more than 0.2%, S is no more than 0.005%, Al is 0.2-0.6%, N is no more than 0.005%, O is no more than 0.005%, and a balance substantially being Fe, a slab can be obtained by hot metal preprocessing, smelting with converter, RH refining, and continuous casting and pouring, wherein a secondary cooling water amount is controlled, the water flowrate of cooling water is controlled to 100-190 1/min, the average superheat of liquid steel in the continuous casting process is controlled to 10-45°C ,the slab is heated and hot rolled; wherein the furnace tap temperature of the slab is 1050-1150 °C , the temperature difference between random two points in the length direction when the slab is heated, is lower than 25 °C , the hot rolling process includes a rough rolling process and a planishing process, the entry temperature in the planishing process is no lower than 970 °C ; the finished non-oriented electrical steel sheet is obtained by acid pickling, cold rolling, annealing and coating. No corrugated defect can be accomplished by controlling the cooling speed of the slab in continuous casting and pouring process, the temperature difference in the length direction of the slab in the heating furnace, and by controlling the temperature drop before planishing the slab.

公开(公告)号：EP2824192A4

公开(公告)日：2015-09-30

申请号：EP12870769

申请日：2012-03-27

申请人： BAOSHAN IRON & STEEL

发明人： ZHANG FENG ,  LIU XIANDONG ,  XIE SHISHU ,  LV XUEJUN ,  CHEN XIAO ,  MA AIHUA ,  ZHANG PEILI ,  WANG YANWEI ,  ZHANG LAN ,  HEI HONGXUE

IPC分类号： C21C7/04 ,  C21C7/00 ,  C21C7/06 ,  C21C7/068 ,  C21C7/10 ,  C21D8/12 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  H01F1/147 ,  H01F1/16

CPC分类号： H01F1/14775 ,  C21C7/0006 ,  C21C7/06 ,  C21C7/068 ,  C21C7/10 ,  C21D8/12 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  H01F1/14766 ,  H01F1/14791 ,  H01F1/16

摘要： A non-oriented electrical steel sheet with fine magnetic performance, and a calcium treatment method therefor, including an RH (Ruhrstahl-Heraeus) refinement step. The RH refinement step sequentially comprises a decarbonization step, an aluminum deoxidation step, and a step of adding calcium alloy. In the step of adding calcium alloy, time when the calcium alloy is added satisfies the following condition: time interval between A1 and Ca/total time after £A1=0.2-0.8. In this method, production cost is reduced, the production process is simple, a normal processing cycle of RH refinement is not affected, the device is convenient in operation and is controllable, and foreign substances are controllable in both shape and quantities. The non-oriented electrical steel sheet prepared according to the present invention has fine magnetic performance, and the method can be used for mass production of the non-oriented electrical steel sheet with fine magnetic performance.

摘要翻译： 一种具有优良磁性能的无取向电工钢板及其钙处理方法，包括RH（鲁尔斯塔赫 - 赫氏菌）精制步骤。 RH精制步骤依次包括脱碳步骤，铝脱氧步骤和添加钙合金的步骤。 在添加钙合金的步骤中，添加钙合金的时间满足以下条件：A1与Ca之间的时间间隔/ A1 = 0.2-0.8之后的总时间。 在这种方法中，生产成本降低，生产工艺简单，RH精炼加工周期不受影响，设备操作方便，可控，异物在形状和数量上都是可控的。 根据本发明制备的无取向电工钢板具有良好的磁性能，该方法可用于批量生产具有优良磁性能的无方向性电磁钢板。

公开(公告)号：EP2586878A4

公开(公告)日：2017-02-08

申请号：EP11797514

申请日：2011-04-12

申请人： BAOSHAN IRON & STEEL

发明人： ZHANG FENG ,  CHEN XIAO ,  ZHU JIANRU

IPC分类号： C21C5/54 ,  C21B13/02 ,  C21C7/04 ,  C21C7/06 ,  C21C7/064 ,  C21C7/076 ,  C21C7/10 ,  C22C33/04 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14

CPC分类号： C22C38/04 ,  C21B13/02 ,  C21C7/06 ,  C21C7/0645 ,  C21C7/076 ,  C22C33/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  Y02P10/242

摘要： The present invention provides a method for controlling extremely low Ti in extra low carbon AlSi-killed steel, the weight percentage of the chemical composition of the extra low carbon AlSi-killed steel comprising: C‰¤0.005%, Si: 0.1-3.4%, Mn: 0.1-0.5%, P‰¤0.2%, S‰¤0.002%, A1: 0-1.2%, N‰¤0.005%, Ti‰¤0.0015 and a balance substantially being Fe and inevitable impurities; the liquid steel having said chemical composition is obtained by hot metal preprocessing, smelting, retained RH smelting and ingoting, wherein the top ladle slag is modified, and calcium-aluminum based modifier of 0.6-1.7kg/t steel are added, so as to ensure a controlling demand that when refined RH decarburization is over, the content of T.Fe in top ladle slag composition ‰¥5%, the content of Al 2 O‰¤23%; when refined RH decarburization is over, ferrosilicium, ferroaluminum or ferromanganese is employed to perform deoxide and alloying, then perform a deep desulfurization, and desulfurizing efficiency is 50% to 70%.

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：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：EP2769775A4

公开(公告)日：2015-07-01

申请号：EP11874169

申请日：2011-12-14

申请人： BAOSHAN IRON & STEEL

发明人： LU YONGQIANG ,  LV CHUNGUO ,  WANG ZHICHENG ,  CHEN BIN ,  CHEN XIAO ,  XIE SHISHU

IPC分类号： B05D3/02 ,  B05C9/04 ,  B05C11/02 ,  B05D1/28 ,  B05D3/04 ,  B05D7/14 ,  H01B13/00 ,  H01B13/06 ,  H01F1/18

CPC分类号： H01B13/06 ,  B05C9/04 ,  B05D1/28 ,  B05D3/0272 ,  B05D3/0413 ,  B05D7/14 ,  B05D2202/10 ,  B05D2252/10 ,  C09D5/08 ,  C09D5/084 ,  H01B13/0016 ,  H01F1/18

公开(公告)号：EP2824194A4

公开(公告)日：2016-01-13

申请号：EP12870723

申请日：2012-03-27

申请人： BAOSHAN IRON & STEEL

发明人： JIANG RONGQIANG ,  HEI HONGXU ,  CHEN XIAO ,  LIU XIANDONG ,  XIE SHISHU ,  SU DEJUN ,  LIN RUNJIE ,  ZHANG PEILI ,  YE MIAO

IPC分类号： C21D8/02 ,  C21D9/56

CPC分类号： C21D8/1261 ,  C21D1/28 ,  C21D1/34 ,  C21D9/561 ,  H01F41/00

摘要： A method for producing a silicon steel normalizing substrate comprises steelmaking, hot rolling and normalizing steps. A normalizing furnace is used in the normalizing step, and along a moving direction of strip steel, the normalizing furnace sequentially comprises: a preheating section, a nonoxidizing heating section, a furnace throat, furnace sections for subsequent normalizing processing, and a delivery seal chamber. Furnace pressures of the normalizing furnace are distributed as follows: the furnace pressure of a downstream furnace section adjacent to the furnace throat along the moving direction of the strip steel is the highest, the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an inlet direction of the normalizing furnace, and the furnace pressure decreases gradually from the furnace section with the highest furnace pressure to a furnace section in an outlet direction of the normalizing furnace.