公开(公告)号：US20150013847A1

公开(公告)日：2015-01-15

申请号：US14379777

申请日：2012-03-26

申请人： Hongxu Hei ,  Bo Wang ,  Shishu Xie ,  Xiandong Liu ,  Guohua Yang ,  Yongjie Yang ,  Aihua Ma ,  Xiaolin Li ,  Liang Zou ,  Huawei Zhang

发明人： Hongxu Hei ,  Bo Wang ,  Shishu Xie ,  Xiandong Liu ,  Guohua Yang ,  Yongjie Yang ,  Aihua Ma ,  Xiaolin Li ,  Liang Zou ,  Huawei Zhang

IPC分类号： C21D8/12 ,  H01F41/00 ,  C21D1/34

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 furnace 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 α of the nonoxidizing heating furnace section to be within a range of 0.8≦α

摘要翻译： 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。 非氧化加热炉部分包括3个以上的炉区。 调节在非氧化加热炉部中使用的炉区的能量投入率，以将非氧化加热炉部的过剩系数α控制在0.8＆lt; 1lE;α<1.0的范围内。

公开(公告)号：US09659694B2

公开(公告)日：2017-05-23

申请号：US14372709

申请日：2012-03-27

申请人： Aihua Ma ,  Bo Wang ,  Xiandong Liu ,  Liang Zou ,  Shishu Xie ,  Hongxu Hei

发明人： Aihua Ma ,  Bo Wang ,  Xiandong Liu ,  Liang Zou ,  Shishu Xie ,  Hongxu Hei

IPC分类号： H01F1/147 ,  C22C38/06 ,  C22C38/60 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C21D6/00 ,  C21D8/12 ,  H01F1/16 ,  B21B1/00 ,  C21D9/46

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: μ10+μ13+μ15≧13982−586.5P15/50; μ10+μ13+μ15≧10000, wherein P15/50 is the iron loss at a magnetic induction intensity of 1.5 T at 50 Hz; μ10, μ13, and μ15 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.

公开(公告)号：US10385414B2

公开(公告)日：2019-08-20

申请号：US14371013

申请日：2012-03-29

申请人： Liang Zou ,  Bo Wang ,  Xiandong Liu ,  Aihua Ma ,  Shishu Xie ,  Hongxu Hei

发明人： Liang Zou ,  Bo Wang ,  Xiandong Liu ,  Aihua Ma ,  Shishu Xie ,  Hongxu Hei

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

摘要： An unoriented silicon 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 magnetic density of 1.0-1.5 T.

公开(公告)号：US20150000794A1

公开(公告)日：2015-01-01

申请号：US14371013

申请日：2012-03-29

申请人： Liang Zou ,  Bo Wang ,  Xiandong Liu ,  Aihua Ma ,  Shishu Xie ,  Hongxu Hei

发明人： Liang Zou ,  Bo Wang ,  Xiandong Liu ,  Aihua Ma ,  Shishu Xie ,  Hongxu Hei

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

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 silicon 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 magnetic density of 1.0-1.5 T.

摘要翻译： 一种在1.0-1.5T的工作磁密度下具有高磁导率和低铁损的无取向硅钢及其制造方法。 通过在正常化阶段的RH精炼和高温处理中进行适当的脱氧控制，该方法可以减少硅钢中的夹杂物的量并改善晶粒形状，从而提高磁导率和铁损 磁性密度为1.0-1.5T的无取向硅钢。

公开(公告)号：US09822423B2

公开(公告)日：2017-11-21

申请号：US14379777

申请日：2012-03-26

申请人： Hongxu Hei ,  Bo Wang ,  Shishu Xie ,  Xiandong Liu ,  Guohua Yang ,  Yongjie Yang ,  Aihua Ma ,  Xiaolin Li ,  Liang Zou ,  Huawei Zhang

发明人： Hongxu Hei ,  Bo Wang ,  Shishu Xie ,  Xiandong Liu ,  Guohua Yang ,  Yongjie Yang ,  Aihua Ma ,  Xiaolin Li ,  Liang Zou ,  Huawei Zhang

IPC分类号： C21D1/00 ,  C21D8/12 ,  C21D1/76 ,  C21D6/00 ,  C21D1/34 ,  H01F41/00 ,  C21D9/46 ,  C21D1/28

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 furnace 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 α of the nonoxidizing heating furnace section to be within a range of 0.8≦α

公开(公告)号：US20140377124A1

公开(公告)日：2014-12-25

申请号：US14372709

申请日：2012-03-27

申请人： Aihua Ma ,  Bo Wang ,  Xiandong Liu ,  Liang Zou ,  Shishu Xie ,  Hongxu Hei

发明人： Aihua Ma ,  Bo Wang ,  Xiandong Liu ,  Liang Zou ,  Shishu Xie ,  Hongxu Hei

IPC分类号： H01F1/147 ,  C22C38/60 ,  B21B1/00 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/12 ,  C22C38/06

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: μ10+μ13+μ15≧13982−586.5P15/50; μ10+μ13+μ15≧10000, wherein P15/50 is the iron loss at a magnetic induction intensity of 1.5 T at 50 Hz; μ10, μ13, and μ15 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非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：＆lt; lE; 0.005重量％，P：＆lt; ％，S：＆NlE; 0.005重量％，N：＆lt; NlE; 0.005重量％，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≥13982-586.5P15/ 50; μ10+μ13+μ15≥10000，其中P15 / 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。

公开(公告)号：US20130199675A1

公开(公告)日：2013-08-08

申请号：US13637611

申请日：2011-04-27

申请人： Aihua Ma ,  Bo Wang ,  Shishu Xie ,  Zhanyuan Hu ,  Liang Zou ,  Zitao Wang ,  Yuhua Zhu ,  Jie Huang ,  Bingzhong Jin ,  Xiandong Liu

发明人： Aihua Ma ,  Bo Wang ,  Shishu Xie ,  Zhanyuan Hu ,  Liang Zou ,  Zitao Wang ,  Yuhua Zhu ,  Jie Huang ,  Bingzhong Jin ,  Xiandong Liu

IPC分类号： C21D8/00

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: 0.1˜0.8%, Al: 0.002˜1.0%, Mn: 0.10˜1.50%, P: ≦0.2%, Sb: 0.04˜0.08%, 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.˜920° C.; after rolling, the hot-rolled product is air cooled, during which air cooling time t: (2+30×Sb %)s≦t≦7 s; thereafter reeling at a temperature ≧720° C. ; 3) cold-rolling; rolling to form cold-rolled plate with target thickness at a reduction ratio of 70˜18%; 4) annealing; heating up the cold-rolled plate to 800˜1000° C. at heating rate of ≧15° C./s, and holding time is 10 s˜25 s. 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.

摘要翻译： 一种具有优异磁性的高效无取向硅钢的制造方法，包括以下步骤：1）熔炼和铸造; 无取向硅钢的化学组成按重量百分比分别为：C@0.0040％，Si：0.1〜0.8％，Al：0.002〜1.0％，Mn：0.10〜1.50％，P：@ 0.2％，Sb：0.04 〜0.08％，S@0.0030%，N@0.0020%，Ti@0.0020%，其余为Fe和不可避免的夹杂物; 根据上述组成的钢水熔炼，然后铸成坯料; 2）热轧酸洗; 板坯加热温度为1100℃〜1150℃，精轧温度为860℃〜920℃。 轧制后，将热轧制品进行空气冷却，在此空气冷却时间t：（2 + 30×Sb％）s @ t @ 7 s; 然后在> 720℃的温度下卷曲; 3）冷轧; 轧制成型，目标厚度为70〜18％的冷轧板; 4）退火; 将冷轧板加热至800〜1000℃，加热速率> 15℃/ s，保温时间为10秒〜25秒。 在确保磁性能的前提下，本发明通过添加有利于钢铁制造中有利组织的元素，控制不利元素的含量和在高温卷取的热轧过程中协调空气冷却时间控制来实现低成本电钢的低成本制造。

公开(公告)号：US09816152B2

公开(公告)日：2017-11-14

申请号：US13637611

申请日：2011-04-27

申请人： Aihua Ma ,  Bo Wang ,  Shishu Xie ,  Zhanyuan Hu ,  Liang Zou ,  Zitao Wang ,  Yuhua Zhu ,  Jie Huang ,  Bingzhong Jin ,  Xiandong Liu

发明人： Aihua Ma ,  Bo Wang ,  Shishu Xie ,  Zhanyuan Hu ,  Liang Zou ,  Zitao Wang ,  Yuhua Zhu ,  Jie Huang ,  Bingzhong Jin ,  Xiandong Liu

IPC分类号： C21D8/00 ,  C22C38/60 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C21D8/12 ,  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 includes the steps of smelting a chemical composition of non-oriented silicon steel, by weight percent, is: C≦0.0040%, Si:0.1˜0.8%, Al:0.002˜1.0%, Mn:0.10˜1.50%, P:≦0.2%, Sb:0.04˜0.08%, S≦0.0030%, N≦0.0020%, Ti≦0.0020%, and the rest is Fe and unavoidable inclusions. The molten steel is then cast into billets which are hot-rolled into a hot-rolled product. The heating temperature for the billet is 1100°˜1150° and the finish-rolling temperature is 860°˜920°. The hot-rolled product is then air cooled for a period of time within a range determined by air cooling time t: (2+30xSb %)s≦t≦7 s. The hot-rolled product is reeled at a temperature ≧720° and cold-rolled to form cold-rolled plate with a target thickness at a reduction ratio of 70˜78% followed by heating up the cold-rolled plate to 800˜1000° at heating rate of ≧15°/s, and holding time of 10 s˜25 s.

公开(公告)号：US20150034212A1

公开(公告)日：2015-02-05

申请号：US14379529

申请日：2012-03-27

申请人： Feng Zhang ,  Xiandong Liu ,  Shishu Xie ,  Xuejun Lu ,  Xiao Chen ,  Aihua Ma ,  Peili Zhang ,  Yanwei Wang ,  Lan Zhang ,  Hongxu Hei

发明人： Feng Zhang ,  Xiandong Liu ,  Shishu Xie ,  Xuejun Lu ,  Xiao Chen ,  Aihua Ma ,  Peili Zhang ,  Yanwei Wang ,  Lan Zhang ,  Hongxu Hei

IPC分类号： H01F1/147 ,  C21C7/068 ,  C22C38/00 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21C7/06 ,  C21C7/00

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 Al and Ca/total time after ΣAl=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： 一种具有细磁性能的无取向电工钢板及其钙处理方法，包括RH（Ruhrstahl-Heraeus）精制步骤。 RH精炼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：Al与Ca之间的时间间隔/ Al = 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精加工的正常加工周期不受影响，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优良的磁性能，并且该方法可用于批量生产具有优良磁性能的无方向性电工钢板。

公开(公告)号：US10147528B2

公开(公告)日：2018-12-04

申请号：US14379529

申请日：2012-03-27

申请人： Feng Zhang ,  Xiandong Liu ,  Shishu Xie ,  Xuejun Lu ,  Xiao Chen ,  Aihua Ma ,  Peili Zhang ,  Yanwei Wang ,  Lan Zhang ,  Hongxu Hei

发明人： Feng Zhang ,  Xiandong Liu ,  Shishu Xie ,  Xuejun Lu ,  Xiao Chen ,  Aihua Ma ,  Peili Zhang ,  Yanwei Wang ,  Lan Zhang ,  Hongxu Hei

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

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 Al and Ca/total time after ΣAl=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.