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：US08917030B2

公开(公告)日：2014-12-23

申请号：US13821596

申请日：2011-08-25

申请人： Hong Dai ,  Yuancheng Guo ,  Wei Gao ,  Changsong Ma

发明人： Hong Dai ,  Yuancheng Guo ,  Wei Gao ,  Changsong Ma

IPC分类号： H05B37/02 ,  H05B41/36 ,  H05B41/282

CPC分类号： H05B41/36 ,  H05B41/2825 ,  Y02B20/185

摘要： An electronic ballast for a lighting unit may include a Power Factor Correction (PFC) circuit, an inverter, and a control circuit for controlling startup of the inverter, wherein the control circuit is coupled between the PFC circuit and the inverter and includes a switching device coupled in a startup loop for the inverter; a unidirectional conductive device coupled between a PFC power supply circuit for providing an operation current to a PFC controller of the PFC circuit and an input of the PFC controller for preventing a startup current flowing through the PFC circuit from triggering the switching device; and a triggering device coupled to the switching device and a connection point between the unidirectional conductive device and the PFC power supply circuit for controlling switch-on and switch-off of the switching device.

摘要翻译： 用于照明单元的电子镇流器可以包括功率因数校正（PFC）电路，逆变器和用于控制逆变器启动的控制电路，其中控制电路耦合在PFC电路和逆变器之间，并且包括开关装置 耦合在逆变器的启动循环中; 耦合在用于向PFC电路的PFC控制器提供工作电流的PFC电源电路和用于防止流过PFC电路的启动电流触发开关装置的PFC控制器的输入端的单向导电装置; 以及耦合到所述开关装置的触发装置以及所述单向导电装置和所述PFC电源电路之间的连接点，用于控制所述开关装置的接通和断开。

公开(公告)号：US20130169185A1

公开(公告)日：2013-07-04

申请号：US13821596

申请日：2011-08-25

申请人： Hong Dai ,  Yuancheng Guo ,  Wei Gao ,  Changsong Ma

发明人： Hong Dai ,  Yuancheng Guo ,  Wei Gao ,  Changsong Ma

IPC分类号： H05B41/36

CPC分类号： H05B41/36 ,  H05B41/2825 ,  Y02B20/185

摘要： An electronic ballast for a lighting unit may include: a Power Factor Correction (PFC) circuit, an inverter, and a control circuit for controlling startup of the inverter, wherein the control circuit is coupled between the PFC circuit and the inverter and includes: a switching device coupled in a startup loop for the inverter; a unidirectional conductive device coupled between a PFC power supply circuit for providing an operation current to a PFC controller of the PFC circuit and an input of the PFC controller, for preventing a startup current flowing through the PFC circuit from triggering the switching device; and a triggering device coupled to the switching device and a connection point between the unidirectional conductive device and the PFC power supply circuit, for controlling switch-on and -off of the switching device.

摘要翻译： 用于照明单元的电子镇流器可以包括：功率因数校正（PFC）电路，逆变器和用于控制逆变器启动的控制电路，其中控制电路耦合在PFC电路和逆变器之间，包括： 开关装置耦合在用于逆变器的启动环路中; 耦合在用于向PFC电路的PFC控制器提供工作电流的PFC电源电路和PFC控制器的输入之间的单向导电装置，用于防止流过PFC电路的启动电流触发开关装置; 以及耦合到所述开关装置的触发装置和所述单向导电装置和所述PFC电源电路之间的连接点，用于控制所述开关装置的接通和断开。