公开(公告)号：US20120318411A1

公开(公告)日：2012-12-20

申请号：US13520405

申请日：2011-04-13

申请人： Lingfeng Chen ,  Xiao Chen ,  Zhanyuan Hu

发明人： Lingfeng Chen ,  Xiao Chen ,  Zhanyuan Hu

IPC分类号： C21D8/12 ,  H01F1/01

CPC分类号： C21D8/1233 ,  C21D8/12 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A cold rolled electromagnetic steel sheet for rapid cycling synchrotron, and a manufacturing method thereof, the method includes the steps of 1) smelting and casting, the composition of the cold rolled electromagnetic steel sheet is C 0.001-0.003 wt %, Si 0.60%-0.90 wt %, Mn 0.40%-0.70 wt %, P≦0.04 wt %, Al 0.60-0.80 wt %, S≦0.0035 wt %, N≦0.003 wt %, and the rest is Fe; smelting and RH refining, and then casting to form semi-finished product; 2) hot rolling; 3) normalizing, in which the normalizing temperature is controlled between 960° C.-980° C., and the normalizing time is 30-60 sec; 4) pickling and cold rolling; 5) annealing, wherein the annealing temperature is controlled to be between 850° C.-870° C., and the annealing time is 13-15 sec; 6) obtaining non-oriented silicon steel product after coating. The cold rolled electromagnetic steel sheet of the present invention has low coercivity, specifically in case that the magnetizing intense returns to zero after reaching 10 Oersted (Oe), the coercivity of the material is Hc≦79.6 A/m; high magnetic induction, which is B50≧1.75 T; and low iron losses of P15/50≦4.2 W/kg, and the iron losses after strain-annealing is P15/50≦3.5 W/kg.

摘要翻译： 一种用于快速循环同步加速器的冷轧电磁钢板及其制造方法，其特征在于，包括以下步骤：1）熔融铸造，冷轧电磁钢板的组成为0.001-0.003重量％，Si 0.60〜 0.90重量％，Mn 0.40重量％-0.70重量％，P＆lt; L; 0.04重量％，Al 0.60-0.80重量％，S＆amp; NEE; 0.0035重量％，N＆lt; 1E; 0.003重量％，其余为Fe; 冶炼和RH精炼，然后铸造形成半成品; 2）热轧; 3）归一化，其中归一化温度控制在960℃-980℃之间，标准化时间为30-60秒; 4）酸洗和冷轧; 5）退火，其中退火温度控制在850℃-870℃之间，退火时间为13-15秒; 6）涂布后获得无取向硅钢产品。 本发明的冷轧电磁钢板具有低的矫顽力，特别是在达到10奥斯特（Oe）后，磁化强度恢复到零的情况下，材料的矫顽力为Hc＆nlE; 79.6A / m; 高磁感应，B50≥1.5T; P15 / 50＆NlE低铁损; 4.2W / kg，应变退火后的铁损为P15 / 50＆nlE; 3.5W / kg。