Method for controlling edge cracks of high-silicon electrical steel

The invention relates to a method for controlling edge cracks of high-silicon electrical steel, and belongs to the technical field of high-silicon electrical steel. The method comprises the following steps that S1, continuous casting is conducted on a plate blank; the continuous casting comprises slab width control and corner grain and temperature control, and the technological parameters of slab width control are as follows: the pulling speed is 0.8 m/min-1 m/min, the superheat degree of a tundish is 25-30 DEG C, the cooling strength is 0.8-1.5 L/kg, and the width coefficient of a crystallizer is 0.995-1.005; the corner grain and temperature control is realized through primary cooling in a crystallizer and secondary cooling in a fan-shaped section; s2, the slab subjected to continuous casting in the step S1 is heated; the heating is divided into three stages, the temperature of the preheating stage is 1190-1210 DEG C, the temperature of the heating stage is 1100-1150 DEG C, and the temperature of the heating