First, the cold rolling process greatly affects the performance of silicon steel. During the cold rolling process, the grains of silicon steel can be refined by pressing and deforming the hot-rolled silicon steel. Refined grains can increase the magnetic permeability of silicon steel and reduce hysteresis loss. At the same time, parameters such as the reduction rate and rolling speed during the cold rolling process will directly affect the microstructure and internal stress distribution of silicon steel. A higher reduction rate can make the grains finer and more uniform, but it may also cause increased internal stress, affecting the mechanical properties and magnetic stability of silicon steel. Reasonable control of the rolling speed can ensure the surface quality and dimensional accuracy of silicon steel and reduce the adverse effects of surface defects on magnetic properties.
Secondly, the annealing process is an important link in improving the performance of Cold Rolled Non-Oriented Silicon Steel. Annealing can eliminate the internal stress generated during the cold rolling process, promote the growth and recrystallization of grains, and improve the magnetic properties of silicon steel. Factors such as annealing temperature, time and atmosphere have a key influence on the performance of silicon steel. Appropriately increasing the annealing temperature can accelerate the growth rate of grains and reduce iron loss, but too high a temperature may cause abnormal growth of grains, which in turn reduces the magnetic permeability. The length of annealing time needs to be adjusted according to factors such as the thickness and composition of silicon steel. Too long or too short annealing time may affect the performance of silicon steel. Different annealing atmospheres, such as hydrogen and nitrogen, can change the surface state and internal structure of silicon steel, thereby affecting its magnetic properties and corrosion resistance.
In addition, the coating process also has a certain effect on the performance of Cold Rolled Non-Oriented Silicon Steel. The coating can improve the corrosion resistance of silicon steel and prevent oxidation and corrosion during use. At the same time, the coating can also improve the insulation performance of silicon steel and reduce eddy current losses. Different types of coating materials and coating processes will have different effects on the performance of silicon steel, and need to be selected according to specific application requirements.
In short, the processing technology of Cold Rolled Non-Oriented Silicon Steel has a vital impact on its performance. By reasonably selecting and controlling process parameters such as cold rolling, annealing and coating, silicon steel products with excellent performance can be obtained to meet the application requirements of different fields.
