论文部分内容阅读
研究了900~1000℃正火对高锰50W470无取向硅钢的组织、织构和磁性的影响。结果表明,随着正火温度的升高,成品板的平均磁感不断增加,而铁损在975℃最低。热轧板正火后的晶粒尺寸随正火温度升高不断增大,而对应冷轧、退火后的成品板晶粒尺寸先增大后减小(975℃时最大)。在975℃×5 min正火后,成品板中得到对磁性有利的{100}面织构和高斯织构,磁性能改善。高锰50W470无取向硅钢的最佳正火工艺为975℃×5 min,此工艺可改善高锰无取向硅钢的组织和织构,最终提高其磁性能。
The effects of normalizing at 900 ~ 1000 ℃ on microstructure, texture and magnetic properties of high manganese 50W470 non-oriented silicon steel were studied. The results show that with the increase of normalizing temperature, the average magnetic induction of the finished board increases continuously, while the iron loss is the lowest at 975 ℃. After normalizing, the grain size of the hot-rolled sheet increases with the increase of the normalizing temperature, while the grain size of the finished sheet first increases and then decreases (the maximum at 975 ℃) corresponding to the cold-rolled and annealed products. After normalizing at 975 ° C for 5 min, the {100} plane texture and Gaussian texture that are favorable to magnetism are obtained in the finished plate, and the magnetic properties are improved. The optimal normalizing process of high-manganese 50W470 non-oriented silicon steel is 975 ℃ × 5min. This process can improve the microstructure and texture of high manganese non-oriented silicon steel and finally improve its magnetic properties.