Xue Yanchun, Ma Liang, Qiu Shengtao. Study on Structure and Property of High Grade Non-Oriented Silicon Steel Sheet via 20 mm Thin Slab[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 116-121. doi: 10.7513/j.issn.1004-7638.2015.03.023
Citation:
Xue Yanchun, Ma Liang, Qiu Shengtao. Study on Structure and Property of High Grade Non-Oriented Silicon Steel Sheet via 20 mm Thin Slab[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 116-121. doi: 10.7513/j.issn.1004-7638.2015.03.023
Xue Yanchun, Ma Liang, Qiu Shengtao. Study on Structure and Property of High Grade Non-Oriented Silicon Steel Sheet via 20 mm Thin Slab[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 116-121. doi: 10.7513/j.issn.1004-7638.2015.03.023
Citation:
Xue Yanchun, Ma Liang, Qiu Shengtao. Study on Structure and Property of High Grade Non-Oriented Silicon Steel Sheet via 20 mm Thin Slab[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 116-121. doi: 10.7513/j.issn.1004-7638.2015.03.023
2.9%Si-0.77%Al non-oriented silicon steel slab had been produced by the thin slab process with a thickness of 20 mm. After hot rolling,normalizing,cold rolling and annealing,the resulting sheet had been investigated in terms of microstructure,precipitates and magnetic properties. The results show that thin casting slab has a typical transcrystalline grain structure,while the structure of hot rolled strip comprising of fine recrystallized grain at edge and coarse deformed structure in the center. Normalizing process leads to a fully-recrystallized microstructure,and finished sheet is characterized by an equaixed grain microstructure. The precipitates are dominant coarse AlN and (MnS+AlN) composite in size of 0.5~ 2.5 μm. The magnetic property of resulting silicon steel are P15= 2.86 W/kg and B50= 1.70 T.