Method for manufacturing high magnetic flux density grain oriented electrical steel sheet based on low temperature slab heating method

摘要: A method for manufacturing a high magnetic flux density grain oriented electrical steel sheet is disclosed. silicon slab heated and hot-rolled, the annealed cold-rolled decarburized. An annealing separator spread on sheet, final temperature carried out. The contains in weight % 0.02-0.045 of C, 2.90-3.30 Si, 0.05-0.30 Mn, 0.005-0.019 Al, 0.003-0.008 N, 0.006 or less S (the above being main ingredients), 0.001-0.012 B, balance Fe unavoidable impurities; ingredients plus 0.30-0.70 Cu, 0.03-0.07 Ni, Cr, impurities.