在实验室模拟CSP工艺采用二次冷轧制备了Fe-3wt%Si取向硅钢,研究了取向硅钢制备过程中,中间退火温度对抑制剂演变的影响。结果表明,中间退火温度为940℃时,中间退火和脱碳退火后试验钢中析出抑制剂尺寸更加细小,分布更加弥散,数量更多;高温退火后,抑制剂析出明显减少,只有少量粗大未熔析出,析出物大多为不规则的(Al,Si)N及(Cu,Mn)S复合析出。 Fe-3wt% Si-oriented silicon steel was prepared by secondary cold rolling in laboratory simulated CSP process. The influence of intermediate annealing temperature on the evolution of inhibitor during the preparation of oriented silicon steel was studied. The results show that when the intermediate annealing temperature is 940 ℃, the size of precipitation inhibitor in the test steel after the intermediate annealing and the decarburization annealing is more small and the dispersion is more diffused and the number is more. After annealing at high temperature, the inhibitor precipitation is obviously reduced, only a few coarse Melting out, precipitates are mostly irregular (Al, Si) N and (Cu, Mn) S composite precipitation.