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›› 2014, Vol. 14 ›› Issue (6): 1047-1052.

• 材料工程专栏 • 上一篇    下一篇

卷曲温度对无取向硅钢组织结构及其变化的影响

万勇 吴绍杰 陈伟庆 李杰   

  1. 安徽工业大学冶金与资源学院 新余钢铁公司技术中心 北京科技大学冶金与生态工程学院 安徽工业大学冶金与资源学院
  • 收稿日期:2014-09-01 修回日期:2014-10-17 出版日期:2014-12-20 发布日期:2014-12-20
  • 通讯作者: 万勇

Effect of Coiling Temperature on the Microstructure and Texture Evolution of Non-oriented Silicon Steel

WANG Yong WU Shao-jie CHEN Wei-qing LI Jie   

  1. School of Metallurgical Engineering, Anhui University of Technology Technology Center of Xinyu Iron and Steel Co., Ltd., School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing School of Metallurgy and Resource, Anhui University of Technology
  • Received:2014-09-01 Revised:2014-10-17 Online:2014-12-20 Published:2014-12-20
  • Contact: WANG Yong

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摘要： 通过工业试验和金相显微镜、扫描电镜、背散射衍射技术研究了卷曲温度对50W600无取向硅钢热轧板、冷轧板和退火冷轧板的组织结构及其变化的影响. 结果表明，无取向硅钢热轧板→冷轧板→退火冷轧板的织构演变为高斯织构{110}<001>→{111}和{100}面织构→{111}和少量{100}面织构. 卷曲温度从680℃提高到720℃，有利于无取向硅钢热轧板再结晶晶粒形核和长大，退火冷轧板的晶粒尺寸从40.88 mm增加到48.58 mm. 卷曲温度为680℃时，无取向硅钢退火冷轧板中{111}, {100}面织构分别为32.9%和6.1%(j)；720℃时，其退火冷轧板中{111}和{100}面织构分别为25.1%和7.9%(j). 卷曲温度从680℃提高到720℃，无取向硅钢退火冷轧板的铁芯损耗从3.94 W/kg降到3.85 W/kg，磁感应强度从1.690 T提高到1.701 T.

关键词: 卷曲温度, 无取向硅钢, 组织, 结构

Abstract: With industrial test, metallographic microscope, SEM and EBSD techniques, the effect of coiling temperature on the microstructure and texture evolution of hot-rolled, cold-rolled and annealed cold-rolled plates of 50W600 non-oriented silicon steel was studied. The experimental results showed that the main texture types of hot-rolled, cold-rolled and annealed cold-rolled plates undergone an evolution from Goss texture {110} <001> to {111} and {100} fiber texture and finally to {111} fiber texture and a very small amount of {100} fiber texture. Increasing of the coiling temperature from 680℃ to 720℃ promoted the nucleation and growth of recrystallized grains, and thus improved the grain growth of annealed cold-rolled plate from 40.88 to 48.58 mm. The volume fractions of {111} and {100} fiber texture in annealed cold-rolled plate under the coiling temperature of 680℃ were 32.9% and 6.1%, respectively. The volume fractions of {111} and {100} fiber texture in annealed cold-rolled plate changed to 25.1% and 7.9% as the coiling temperature increased from 680℃ to 720℃. Increasing coiling temperature from 680℃ to 720℃, the core loss of annealed cold-rolled plate decreased from 3.94 to 3.85 W/kg, the magnetic ?ux density increased from 1.690 to 1.701 T.

Key words: coiling temperature, non-oriented silicon steel, microstructure, texture

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