Silicon steel performance requirements
The requirements for the performance of silicon steel are:
1. Low iron loss, this is the most important indicator of the quality of silicon steel sheet. Each country divides the grades according to the iron loss value. The lower the iron loss, the higher the grade.
2. The magnetic induction strength (magnetic induction) is high under a strong magnetic field, which reduces the volume and weight of the iron core of the motor and transformer, and saves silicon steel sheets, copper wires and insulating materials.
3. The surface is smooth, flat and uniform in thickness, which can improve the filling factor of the iron core.
4. Good punching performance, which is more important for manufacturing miniature and small motors.
5. The adhesion and solderability of the surface insulating film are good, which can prevent corrosion and improve the punching property.