Cold Rolled Non-oriented Silicon Steel

Non-oriented Silicon Steel: ferrosilicon alloy with very low carbon content. In the deformed and annealed steel sheet, its grains are distributed randomly. The silicon content of the alloy is 1.5% to 3.0%, or the sum of the silicon and aluminum content is 1.8% to 4.0%. The products are usually cold-rolled plates or strips, which are mainly used to manufacture motors and generators.

1. Magnetic Properties:

Non-Oriented: Unlike Grain Oriented Electrical Steel, which is processed to have a preferred direction of magnetic alignment, CRNGO is non-oriented. This means its magnetic properties are relatively uniform in all directions.

2. Composition:

Silicon Content: CRNGO typically contains a silicon content ranging from about 2% to 3.5%. The silicon helps in reducing core losses and improving magnetic permeability.

3. Processing:

Cold Rolling: The material undergoes a cold-rolling process to achieve the desired thickness and improve its magnetic properties. Cold rolling is a process where the steel is rolled at room temperature, leading to improved grain structure and magnetic characteristics.

4. Applications:

Electric Motors: CRNGO is commonly used in the cores of electric motors and generators. Its magnetic properties make it efficient for converting electrical energy into mechanical energy in rotating machinery.

Transformers: It is used in the construction of transformers, where it forms the laminated core. The laminated structure helps in reducing eddy current losses.

Inductors and Chokes: CRNGO is used in the manufacturing of inductors and chokes, where controlled magnetic properties are essential.

6. Lamination and Insulation:

Laminated Sheets: The material is often provided in the form of laminated sheets to further reduce eddy current losses. These laminations are insulated from each other to prevent the flow of eddy currents.

Cold-rolled non-oriented silicon steel is a versatile material that plays a critical role in the efficiency and performance of electrical devices, particularly in applications where a uniform magnetic response in all directions is required.