Abstract:
Non-oriented electrical steels containing different contents rare earth Ce element (0-0.018wt%) were prepared in the laboratory by simulated CSP (compact strip production) process, and then recrystallization annealing at 1 000 ℃ for 5 min were performed, the effects of Ce content on inclusion, microstructure, recrystallization texture and magnetic properties of non-oriented electrical steels were studied. The results show that with the increase of Ce content, the amounts of fine inclusion, the size of recrystallization grains and 100 and 110 texture components and magnetic flux density increased first and then decreased, 111 texture component and iron loss decreased and then increased. When the Ce content was 0.005 1wt%, the amounts of inclusions in the steel was the lest, tthe size of recrystallization grains was largest, benifiting texture was most, the magnetic properties was best, and the iron loss P15/50 and magnetic flux density B50 of were 3.253 W·kg-1 and 1.751 T, respectively.