Silicon steel sheet is a kind of ferrosilicon soft magnetic alloy with extremely low carbon content, and the general silicon content is 0.5-4.5%. The addition of silicon increases the resistivity and maximum permeability of iron, and reduces coercivity, core loss (iron loss), and magnetic aging. It is mainly used to make iron cores for various transformers, motors and generators.
Generally, as the silicon content increases, the iron loss, punchability and magnetic induction decrease, and the hardness increases. The higher the working frequency, the greater the eddy current loss, and the thinner the silicon steel sheet should be.
Low iron loss of silicon steel sheet is required: low iron loss of silicon steel sheet is an important indicator of the quality of silicon steel sheet. The iron loss of silicon steel sheet is determined according to different grades of silicon steel sheet. The higher the grade, the lower the iron loss value will be.
The silicon steel sheet is required to have high magnetic sensitivity: in the motor, the silicon steel sheet as the iron core plays a great role in its operation, but different silicon steel sheets have different magnetic induction intensities. to use.
The surface of the silicon steel sheet is required to be smooth, flat and uniform in thickness: the performance of the silicon steel sheet can be judged from the surface texture.
The silicon steel sheet is required to have good adhesion and weldability: during the processing and use of the silicon steel sheet, the adhesion of the silicon steel sheet to the insulating film is good for corrosion prevention and improvement of the punching property of the silicon steel sheet.
