Effect of Hot Bands Annealing on Magnetic Properties in 3 percent Si Grain-oriented Electrical Steels

摘要

Hot band annealing is known to be a prerequisite for good magnetic properties irrespective of manufacturing methods in grain-oriented Fe-3 wt. percent Si electrical steels. In this study, the effects of hot band annealing on magnetic properties were investigated in 3 percent grain-oriented electrical steels of low soluble Al contents and one-stage cold rolling. Microstructure and precipitate distribution were compared with hot band annealing conditions. Secondary recrystallization behaviour with hot band annealing condition was also discussed.