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

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

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- Annealing Process and Product Characteristics of Baosteel's Semi-process Non-oriented Electrical Steel with Coating
- Special Steel Vol. 29, Issue 6, Pages: 47-49(2008)
- 作者机构：
  
  宝钢分公司硅钢部,上海,200941
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：16 May 2008，
  
  Online First：09 December 2022，
  
  Published：09 December 2008
- 稿件说明：
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陈晓. Annealing Process and Product Characteristics of Baosteel's Semi-process Non-oriented Electrical Steel with Coating[J]. Special Steel, 2008, 29(6): 47-49.
DOI：

陈晓. Annealing Process and Product Characteristics of Baosteel's Semi-process Non-oriented Electrical Steel with Coating[J]. Special Steel, 2008, 29(6): 47-49. DOI：

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。

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.

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