1results about How to "High magnetic induction" patented technology

The application belongs to the technical field of electrical steel manufacturing, and particularly relates to a continuous annealing tension control method for rare earth-containing non-oriented electrical steel, which comprises the following steps: S1, providing a rare earth-containing non-oriented electrical steel cold-rolled plate as raw material, wherein the silicon content of the rare earth-containing non-oriented electrical steel cold-rolled plate is 4.0wt%-4.5wt%, and the rare earth neodymium content is 0.015wt%-0.02wt%; S2, performing continuous annealing treatment on the rare earth-containing non-oriented electrical steel cold-rolled plate, wherein the continuous annealing treatment sequentially passes through an uncoiler, an inlet loop, a degreasing section, a furnace zone annealing section, a coating section, a baking section, an outlet loop and a coiler; the tension of each section is accurately controlled and matched with the thickness, temperature and speed, so that the annealed plate realizes the reduction of iron loss and the promotion of magnetic induction while ensuring good plate shape, promotes the nucleation of the texture beneficial to the magnetic performance, avoids the quality problems such as instability, narrowing, belt breakage and wrinkle in the annealing process, and realizes the double optimization of electromagnetic performance and physical plate shape.