The hysteresis loss and iron loss of cold rolled non-oriented silicon steel are low, which is mainly attributed to the following factors.
1. Material properties
Cold rolled non-oriented silicon steel has high resistivity and magnetic permeability, which enables it to effectively conduct current and reduce energy loss under the action of a magnetic field. At the same time, the hysteresis loop of silicon steel is narrow, which means that during repeated magnetization, the change in magnetic induction intensity is small, thereby reducing hysteresis loss.
2. Microstructure
The microstructure of cold rolled non-oriented silicon steel has an important influence on its magnetic properties. Its internal grain size is moderate, the grain boundaries are clear, and the magnetic domains are arranged in an orderly manner, all of which help to reduce hysteresis losses. In addition, the silicon element in silicon steel can inhibit the movement of magnetic domain walls, thereby reducing hysteresis losses.
3. Chemical composition
The chemical composition of cold rolled non-oriented silicon steel is also an important factor affecting its hysteresis loss and iron loss. Silicon steel contains a certain amount of silicon, which can significantly increase the resistivity of the material and thus reduce eddy current losses. At the same time, silicon can also improve the magnetic permeability of the material, increase the magnetic induction intensity, and further reduce hysteresis loss.
4. Production process
The production process of cold rolled non-oriented silicon steel also has a significant impact on its properties. Through processes such as cold rolling and annealing, the microstructure of the material can be optimized, the uniformity and orientation of the grains can be improved, thereby further reducing hysteresis loss and iron loss.
5. Magnetic Domain Wall Movement
Under the action of a magnetic field, the magnetic domain walls in cold rolled non-oriented silicon steel will move and reorganize. Since the movement of magnetic domain walls in silicon steel is suppressed, the hysteresis loss is relatively small.
6. Application advantages
Cold rolled non-oriented silicon steel has been widely used in power equipment such as motors and transformers due to its low hysteresis loss and iron loss. These devices require efficient energy conversion when operating, and cold rolled non-oriented silicon steel is the key material to achieve this goal.
Cold rolled non-oriented silicon steel has low hysteresis loss and iron loss, mainly due to its excellent material properties, microstructure, chemical composition and production process. These factors work together to make cold rolled non-oriented silicon steel an indispensable key material in power equipment.
