研究了退火时间对无取向电工钢50W600组织的影响。研究结果表明:随退火时间延长,晶粒尺寸不断增大,晶粒更加均匀化,铁损逐渐降低;退火板中有利织构{100}与{110}织构含量降低,不利织构{111}织构含量增加,磁感降低。本实验条件下975℃×7 min为最佳退火工艺,成品铁损3.51 W/kg,磁感1.73 T。 The effect of annealing time on the microstructure of 50W600 non-oriented electrical steel was studied. The results show that with the annealing time increasing, the grain size increases and the grains become more uniform, the iron loss gradually decreases. The {100} and {110} texture contents of the annealed sheet decrease, while the unfavorable texture {111 } The texture content increases, magnetic induction decreases. Under the experimental conditions 975 ℃ × 7 min is the best annealing process, the finished iron loss is 3.51 W / kg and the magnetic induction is 1.73 T.