Effect of Vacuum Conditioning Heat Treatment on Structure and Magnetic Properties of High Temperature Annealing Oriented Silicon Steel 30Q140 Cold Rolled Sheet by Nitrogen Protection

张辉; 付勇军; 杨玲; 张静; 李莉

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Effect of Vacuum Conditioning Heat Treatment on Structure and Magnetic Properties of High Temperature Annealing Oriented Silicon Steel 30Q140 Cold Rolled Sheet by Nitrogen Protection

更新时间：2026-01-21

- Effect of Vacuum Conditioning Heat Treatment on Structure and Magnetic Properties of High Temperature Annealing Oriented Silicon Steel 30Q140 Cold Rolled Sheet by Nitrogen Protection
- Special Steel Vol. 42, Issue 5, Pages: 60-64(2021)
- 作者机构：
  
  1. 湖北理工学院材料科学与工程学院,黄石,435000
  2. 昆明理工大学冶金与能源工程学院,昆明,650093
  3. 黄石市产品质量监督检验所,黄石,435000
  4. 鞍钢股份有限公司技术中心,鞍山,114021
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：15 February 2021，
  
  Online First：03 February 2023，
  
  Published：03 February 2021
- 稿件说明：
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张辉, 付勇军, 杨玲, et al. Effect of Vacuum Conditioning Heat Treatment on Structure and Magnetic Properties of High Temperature Annealing Oriented Silicon Steel 30Q140 Cold Rolled Sheet by Nitrogen Protection[J]. Special Steel, 2021, 42(5): 60-64.
DOI：

张辉, 付勇军, 杨玲, et al. Effect of Vacuum Conditioning Heat Treatment on Structure and Magnetic Properties of High Temperature Annealing Oriented Silicon Steel 30Q140 Cold Rolled Sheet by Nitrogen Protection[J]. Special Steel, 2021, 42(5): 60-64. DOI：

摘要

研究了真空预热处理温度(800、825、850、875、900 ℃)对取向硅钢30Q140(/% ：0.035C，3.25Si， 0.08Mn，0.010P，0.025S，0.023Al，0.0065N) 0.3 mm冷轧板初次再结晶组织、二次再结晶组织及磁性能的影响。结果表明，真空预热处理釆用快速升温方式时

利用涂覆在钢板表面MgO涂层中Mg(OH)

的分解水可以实现取向硅钢部分脱C的目的。真空预热处理温度增加

真空预热处理+1200℃高温退火30Q140钢平均晶粒直径先变大后变小，磁性能先变好后变差。二次再结晶组织最完善且磁性能最优的真空预热处理温度为850℃

Abstract

The effect of vacuum conditioning heat treatment temperature (800

825

850

875

900 ) on the primary recrystallization microstructure

secondary recrystallization structure and magnetic properties of 0.3 mm cold-rolled sheel of grain-oriented silicon steel 30Q140 (/% ：0.035C

3.25Si

0.08Mn

0.010P

0. 025S

0.023Al

0. 0065N) is studied. The results show that the partial decarburization of grain-oriented silicon steel can be achieved by using the decomposition water of Mg(OH)

in MgO coating on the steel sheet surface in rapid healing in vacuum conditioning heat treatment. With increasing vacuum conditioning heat treatment temperature

the average grain diameter of vacuum conditioning heat treatment temperature + 1200 ℃ high-temperature annealing steel 30Q140 first increases and then decreases

and the magnetic properties first become better and then worse. The vacuum conditioning heat treatment temperature of the most perfect secondary recrystallization structure and the best magnetic property of steel is 850 °C.

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