The difference between oriented and unoriented silicon steel

Oct 24, 2023

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The difference between oriented and unoriented silicon steel

 

1, in terms of chemical composition, the silicon content of oriented silicon steel is higher than that of non-oriented silicon steel (the silicon content of cold-rolled non-oriented silicon steel sheet is 0.5%-3.0%, and the silicon content of cold-rolled oriented silicon steel sheet is more than 3.0%).
Non-oriented silicon steel is used in rotating equipment such as motors, which is divided into iron cores and rotors to convert electrical energy into mechanical energy in order to be easily magnetized during rotation. Therefore, it is required that every Angle in the rotation process is easily magnetized, so it is required that the grain orientation is evenly distributed in the non-oriented silicon steel, and for the oriented silicon steel, high magnetic induction is required and no rotation is required, so its texture is basically Goss.
2, use, oriented silicon steel is mainly used for transformers, non-oriented silicon steel is mainly used for motors

The difference between oriented and unoriented silicon steel

3, the internal structure, the grains of oriented silicon steel are basically in one direction, so it is called oriented, non-oriented silicon steel, the grain arrangement is disorganized, so the oriented silicon steel heat loss is small, non-oriented silicon steel heat loss is large.
4, the manufacturing process is not the same, oriented silicon steel is more complex than non-oriented silicon steel
5. Mechanical properties
6, thickness, the thickness of oriented silicon steel is 0.23-0.35 mm, the thickness of non-oriented silicon steel is 0.35-0.65
A. Low iron loss. The most important indicator of quality, all countries in the world are divided by the iron loss value, the lower the iron loss, the higher the brand, the higher the quality.
B, high magnetic induction. Under the same magnetic field, the silicon steel sheet can be obtained with high magnetic induction, and the volume and weight of the motor or transformer core made by it is small, which can save silicon steel sheet, copper wire and insulating materials.
C, high stacking coefficient. The surface of the silicon steel sheet is smooth and uniform, and the stacking coefficient of the manufacturing iron core is improved
D, good film performance. This is more important for the manufacture of small and micro motor cores
The adhesion and weldability of the surface to the insulating film are good, which can prevent corrosion and improve the punching property.
F, magnetic aging phenomenon is small
G. The silicon steel sheet shall be delivered after annealing and pickling.

 

 

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