二次冷轧中间退火对基于CSP工艺的取向硅钢组织及织构的影响

Effects of secondary cold-rolled intermediate annealing on microstructure and texture of grain-oriented silicon steel based on CSP technology

在实验室模拟CSP工艺条件下制备了取向硅钢,研究了二次冷轧中间退火工艺对组织和织构的影响。结果表明,中间退火温度对取向硅钢脱碳,高温退火组织及织构均产生明显影响。经940℃中间退火后,取向硅钢脱碳再结晶晶粒较850℃中间退火的多,且再经高温退火处理后,晶粒粗化,最大晶粒尺寸达4.8 mm;高斯织构组分密度达27.00,较850℃中间退火试样高。

Grain-oriented silicon steel was prepared by simulated CSP technology in laboratory .Effects of secondary cold-rolled intermediate annealing on microstructure and texture were studied .The results show that intermediate annealing has obvious effects on the microstructure and texture of the steels after decarburization annealing and high temperature annealing . After intermediate annealing at 940 ℃, recrystallized grain of decarburization annealed steel is more than that of intermediate annealed at 850 ℃, and then annealed at high temperature, the recrystallized grain size is coarsed and the maximum grain size is about 4.8 mm, Goss texture strength is 27.00 that higher than that of intermediate annealed at 850 ℃.