Abstract: Aiming at the problems of edge blocking, edge running, chipping, and poor edge trimming quality during high-speed shearing by the rotary shear on the electrical steel normalizing and pickling line, this paper systematically analyzed the equipment mechanism and failure causes. Through measures such as the improvement of the knife box structure, the upgrade of the steering system, parameter optimization, and the standardization of operation and maintenance, the stability of the rotary shear has been significantly improved. This scheme can provide a reference for the stable shearing of rotary shears in similar electrical steel production lines.

Key words: electrical steel; normalizing and pickling line; rotary shear; stable shearing; failure mechanism; edge trimming quality