电工钢 ›› 2026, Vol. 8 ›› Issue (2): 1-7.

• •    下一篇

渗氮法取向硅钢常化温度对初次再结晶的影响

李莉 ¹,李富强 ¹,贾志伟 ¹,蒋奇武 ¹,刘旭明 ²   

  1. (1. 鞍钢股份有限公司硅钢事业部,辽宁鞍山 114003;2. 鞍钢集团北京研究院有限公司,北京 102200)

  • 出版日期:2026-04-28 发布日期:2026-04-29

Influence of normalizing temperature on primary recrystallization behavior in nitriding grain‑oriented silicon steel

LI Li¹, LI Fuqiang¹, JIA Zhiwei¹, JIANG Qiwu¹, LIU Xuming²   

  1. 1.Silicon Steel Business Division of Ansteel Co., Ltd., Anshan 114003, China; 2.Ansteel Beijing Research Institute Co., Ltd., Beijing 102200, China
  • Online:2026-04-28 Published:2026-04-29

摘要:

以 0.27mm 规格后天渗氮法高磁感取向硅钢为研究对象,通过实验室模拟常化及脱碳退火工艺,系统研究常化温度对固有抑制剂析出行为及初次再结晶组织的影响规律。结果表明:常化温度对抑制剂的析出尺寸、分布密度具有显著调控作用;当常化高温段温度为 1115℃时,常化板中析出物直径集中在 100nm 以下的占比达 67%,细小抑制剂可有效钉扎晶界迁移,细化初次再结晶组织,使平均晶粒尺寸降至 17.4μm;经脱碳渗氮后,100nm 以下细小析出物占比进一步提升至 80%,为后续二次再结晶的择优生长创造了有利条件。 

关键词: 取向硅钢, 常化温度, 固有抑制剂, 初次再结晶

Abstract:

Taking 0.27mm gauge high magnetic induction grain‑oriented silicon steel produced by the post‑nitriding method as the research object, the effects of normalizing temperature on the precipitation behavior of inherent inhibitors and primary recrystallization structure were systematically studied through laboratory simulation of normalizing and decarburization annealing processes. The results show that the normalizing temperature has a significant regulating effect on the precipitation size and distribution density of inhibitors. When the temperature of the high‑temperature stage of normalizing is 1115℃, the proportion of precipitates with diameter below 100nm in the normalized sheet reaches 67%. The fine inhibitors can effectively pin the grain boundary migration, refine the primary recrystallized structure, and reduce the average grain size to 17.4μm. After decarburization and nitriding, the proportion of fine precipitates below 100nm is further increased to 80%, which creates favorable conditions for the preferential growth of subsequent secondary recrystallization. 

Key words: grain-oriented silicon steel, normalizing temperature, inherent inhibitor, primary recrystallization