ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2008, Vol. 29 ›› Issue (6): 47-49.

• 组织和性能 • 上一篇    下一篇

宝钢涂层半工艺无取向电工钢的退火工艺和产品特性

陈晓   

  1. 宝钢分公司硅钢部,上海200941
  • 收稿日期:2008-05-16 出版日期:2008-12-01 发布日期:2022-12-09
  • 作者简介:陈 晓(1960-),男,教授级高级工程师,1982年华中科技大学毕业,电工钢研究。

Annealing Process and Product Characteristics of Baosteel's Semi-process Non-oriented Electrical Steel with Coating

Chen Xiao   

  1. Silicon Steel Dept,Baosteel Branch,Baosteel Iron and Steel CoLtd,Shanghai 200941
  • Received:2008-05-16 Published:2008-12-01 Online:2022-12-09

摘要: 宝钢涂层半工艺无取向电工钢产品B50A700T(≤0.003%C、1.25%~0.65%Si)和B50A1300T(≤0.003%C、0.50%~0.15%Si)由铁水预处理-顶底复吹转炉-RH-连铸-热轧-冷轧-退火工艺生产。试验了成品退火温度550~900℃对该无取向电工钢HV1硬度值的影响和680~800℃消除应力退火对该钢磁性的影响。在采用成品退火温度650~700℃生产的涂层半工艺无取向产品,经750℃×2 h消除应力退火后,牌号B50A700T的铁损为4.10 W/kg,而牌号B50A1300T的铁损为4.70 W/kg。

关键词: 涂层 , 半工艺, 电工钢, 退火

Abstract: The products B50A700T(≤0.003C,1.25~0.65Si)and B50A1300T(≤0.003C,0.50~0. 15Si)of scmi-process non-oriented electrical steel with coating are produced by hot metal pretreatment-top and bottom combined blowing converter-RH-CC-hot rolling-cold rolling-annealing process at Baosteel.Effect of annealing temperature at 550~900 ℃ on HV1 hardness value of the non-oriented electrical steel and effect of stress-relief annealing at 680~800 ℃ on magnetic properties of the steel were tested. For the finished semi-process non-oriented electrical steel products with coating annealed at 650~700 ℃,the core losses of designation B50A700T and designation B50A1300T stress-annealed at 750 ℃ for 2 h were 4.10 W/kg and 4.70 W/kg respectively.

Key words: Coating,Semi-process,Electric Steel,Annealing