The invention belongs to the technical field of
metallurgy, and particularly relates to a method for preparing high-magnetic-strength non-oriented
silicon steel thin products on the basis of thin-
strip casting. The method comprises the following steps: (1)
smelting molten steel according to set ingredients, wherein the
molten steel comprises the following ingredients in percentages by
mass: less than or equal to 0.003% of C, 2.0-3.5% of Si, less than or equal to 0.01% of Mn, less than or equal to 0.003% of Al, 0.02-0.06% of P, less than or equal to 0.003% of S, and the balance of Fe and inevitable impurities; (2) carrying out thin-
strip casting to obtain a cast strip; (3) carrying out hot rolling under the condition of an
inert atmosphere; (4) reeling the cast strip after the cast strip is cooled to the temperature of 650 DEG C, removing
iron oxide scale and then carrying out single-stage multi-pass cold rolling; and (5) carrying out
continuous annealing on the cold rolled strip,
coating the cold rolled strip with an insulating layer and then
drying the insulating layer to obtain the high-performance non-oriented
silicon steel thin products. The method is based on a thin-
strip casting technology, the process is simplified, the production cost is reduced, and the magnetic performance of the non-oriented
silicon steel thin finished products is improved.