公开(公告)号：US20130224064A1

公开(公告)日：2013-08-29

申请号：US13823311

申请日：2011-04-14

申请人： Feng Zhang ,  Xiao Chen ,  Wei Cao ,  Yezhong Sun ,  Changsong Ma ,  Jianru Zhu ,  Zhuolei Chen ,  Xiandong Liu

发明人： Feng Zhang ,  Xiao Chen ,  Wei Cao ,  Yezhong Sun ,  Changsong Ma ,  Jianru Zhu ,  Zhuolei Chen ,  Xiandong Liu

IPC分类号： B22D25/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/04

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 l/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.

摘要翻译： 本发明提供一种无波纹状缺陷的无取向电工钢板及其制造方法，其中，所述无方向性电工钢板的化学成分的重量百分比为C为0.005％以下，Si为1.2〜2.2％ Mn为0.2〜0.4％，P为0.2％以下，S为0.005％以下，Al为0.2〜0.6％，N为0.005％以下，O为0.005以下，余量基本上为 是Fe，可以通过热金属预处理，转炉熔炼，RH精炼以及连续铸造和浇注获得板坯，其中控制二次冷却水量，将冷却水的水流量控制在100-190l / min ，连铸过程中液态钢的平均过热度控制在10-45℃，将板坯加热和热轧; 其特征在于，板坯的炉膛温度为1050〜1150℃，板坯加热时长度方向随机两点之间的温差低于25℃，热轧工序包括粗轧工序 和平整过程中，平整过程中的入口温度不低于970℃; 通过酸洗，冷轧，退火和涂布获得成品的无取向电工钢板。 通过在连续铸造和浇注过程中控制板坯的冷却速度，加热炉中板坯的长度方向的温差，以及通过控制板坯平整之前的温度下降来控制温度下降，可以不产生瓦楞缺陷。

公开(公告)号：US20130056167A1

公开(公告)日：2013-03-07

申请号：US13697777

申请日：2011-04-12

申请人： Feng Zhang ,  Xiao Chen ,  Jianru Zhu

发明人： Feng Zhang ,  Xiao Chen ,  Jianru Zhu

IPC分类号： B22D27/00

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%, Al: 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 0.6-1.7 kg/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 Al2O3≦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%.

摘要翻译： 本发明提供了一种用于控制超低碳AlSi-镇静钢中极低Ti值的方法，该超低碳AlSi-镇静钢的化学组成的重量百分比包括：C＆lt; I; 0.005％，Si：0.1-3.4％ Mn：0.1-0.5％，P＆NlE; 0.2％，S＆NlE; 0.002％，Al：0-1.2％，N＆lt; lE; 0.005％，Ti＆NlE; 0.0015，余量基本上为Fe和不可避免的杂质; 具有所述化学组成的液态钢通过热金属预处理，熔炼，保留的RH熔炼和铸造得到，其中顶部钢包渣被改性，并且加入0.6-1.7kg / t钢的钙 - 铝基改性剂，以便 确保控制需求，当精炼RH脱碳结束时，顶部钢包渣组成中的T.Fe含量≥5％，Al2O3和NlE含量23％; 当精炼RH脱碳结束时，采用硅铁，铁铝或锰铁进行脱氧和合金化，进行深度脱硫，脱硫效率为50％〜70％。

公开(公告)号：US08882880B2

公开(公告)日：2014-11-11

申请号：US13697777

申请日：2011-04-12

申请人： Feng Zhang ,  Xiao Chen ,  Jianru Zhu

发明人： Feng Zhang ,  Xiao Chen ,  Jianru Zhu

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

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%, Al: 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 0.6-1.7 kg/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 Al2O3≦23%; when refined RH decarburization is over, ferrosilicon, ferroaluminum or ferromanganese is employed to perform deoxide and alloying, then perform a deep desulfurization, and desulfurizing efficiency is 50% to 70%.

摘要翻译： 本发明提供了一种用于控制超低碳AlSi-镇静钢中极低Ti值的方法，该超低碳AlSi-镇静钢的化学成分的重量百分比包括：C n N; 0.005％，Si：0.1-3.4％ Mn：0.1-0.5％，P＆NlE; 0.2％，S＆NlE; 0.002％，Al：0-1.2％，N＆lt; lE; 0.005％，Ti＆NlE; 0.0015，余量基本上为Fe和不可避免的杂质; 具有所述化学组成的液态钢通过热金属预处理，熔炼，保留的RH熔炼和铸造得到，其中顶部钢包渣被改性，并且加入0.6-1.7kg / t钢的钙 - 铝基改性剂，以便 确保控制需求，当精炼RH脱碳结束时，顶部钢包渣组成中的T.Fe含量≥5％，Al2O3和NlE含量23％; 当精炼RH脱碳结束时，采用硅铁，铁铝或锰铁进行脱氧和合金化，进行深度脱硫，脱硫效率为50％〜70％。

公开(公告)号：US09604312B2

公开(公告)日：2017-03-28

申请号：US13876932

申请日：2011-04-28

申请人： Wangya Huang ,  Guobao Li ,  Xinqiang Zhang ,  Xing Mao ,  Wanqing Guo ,  Jianru Zhu ,  Banglin Xiang

发明人： Wangya Huang ,  Guobao Li ,  Xinqiang Zhang ,  Xing Mao ,  Wanqing Guo ,  Jianru Zhu ,  Banglin Xiang

IPC分类号： B23K26/00 ,  B23K26/36 ,  C21D8/12 ,  B23K26/362 ,  C21D1/38

CPC分类号： B23K26/362 ,  B23K26/361 ,  C21D1/38 ,  C21D8/12 ,  C21D8/1294 ,  C21D2201/05

摘要： A fast-speed laser scoring method is provided, in which a set of related laser scoring device is used to simultaneously score lines on the upper surface and the lower surface of an oriented silicon steel strip, which is being fed and traveling forwards on a production line, with high-focalized continuous wave laser beam; the lines scored on the upper surface and the lines scored on the lower surface have the same space between every two adjacent scored lines but are staggered each other in order to reduce iron loss evenly. The space between every two adjacent scored lines on the same surface is 6-12 mm, laser power is 1000-3000 W and scanning speed is 100-400 m/min. The machining rate of the scoring method and device attains 1.5-2 times the one of conventional scoring methods which can not simultaneously score the upper and lower surfaces of a steel strip at a time. The lines scored on a steel strip by the method can reduce iron loss of the strip by 10-16%.

公开(公告)号：US20130284711A1

公开(公告)日：2013-10-31

申请号：US13876932

申请日：2011-04-28

申请人： Wangya Huang ,  Guobao Li ,  Xinqiang Zhang ,  Xing Mao ,  Wanqing Guo ,  Jianru Zhu ,  Banglin Xiang

发明人： Wangya Huang ,  Guobao Li ,  Xinqiang Zhang ,  Xing Mao ,  Wanqing Guo ,  Jianru Zhu ,  Banglin Xiang

IPC分类号： B23K26/36

CPC分类号： B23K26/362 ,  B23K26/361 ,  C21D1/38 ,  C21D8/12 ,  C21D8/1294 ,  C21D2201/05

摘要： A fast-speed laser scoring method is provided, in which a set of related laser scoring device is used to simultaneously score lines on the upper surface and the lower surface of an oriented silicon steel strip, which is being fed and traveling forwards on a production line, with high-focalized continuous wave laser beam; the lines scored on the upper surface and the lines scored on the lower surface have the same space between every two adjacent scored lines but are staggered each other in order to reduce iron loss evenly. The space between every two adjacent scored lines on the same surface is 6-12 mm, laser power is 1000-3000 W and scanning speed is 100-400 m/min. The machining rate of the scoring method and device attains 1.5-2 times the one of conventional scoring methods which can not simultaneously score the upper and lower surfaces of a steel strip at a time. The lines scored on a steel strip by the method can reduce iron loss of the strip by 10-16%.

摘要翻译： 本发明提供了一种快速的激光打标方法，其中使用一组相关的激光刻痕装置同时对生产中的正向进给和向前行进的定向硅钢带的上表面和下表面上的线进行划线 具有高焦距连续波激光束; 在上表面划线，并且在下表面划线的线在每两个相邻刻痕线之间具有相同的间隔，但彼此交错以便均匀地减少铁损。 同一表面两相邻划线之间的间隔为6-12mm，激光功率为1000-3000W，扫描速度为100-400m / min。 评分方法和装置的加工速度达到常规评分方法的1.5-2倍，不能同时对钢带的上表面和下表面进行评分。 通过该方法在钢带上划线的线可以将钢带的铁损减少10-16％。