What is the difference between cold rolling and hot rolling of silicon steel sheets?
The main differences are as follows: (1) the magnetic saturation point of cold rolled silicon steel sheet is high, the flux density is saturated at 1.9T (19000Gs); the saturation point of hot rolled silicon steel sheet is about 1.6T (16000Gs). (2) under the same magnetic flux density and frequency, the unit loss of cold-rolled silicon steel sheet is lower than that of hot rolled silicon steel sheet. (3) whether there are two kinds of orientation and orientation of cold-rolled silicon steel sheets. The direction of the cold-rolled silicon steel sheet is obvious, that is, the magnetic property in the direction of rolling is good, the saturation flux density is high, and the unit loss and the unit excitation capacity are small. Now, cold rolled silicon steel sheet is used on the transformer. Hot rolled silicon steel sheets are free of orientation. (4) the use of silicon steel sheet processing cutting or stamping, on the properties of cold rolled silicon steel sheet effect is particularly evident, has little effect on hot rolled silicon steel, so the small capacity transformer adopts cold rolled silicon steel sheet, annealing can take measures after annealing can generally reduce the no-load loss decreased 8% the left and right.
Hello, silicon steel sheet is generally cold-rolled, and if the temperature is too high, easy to anneal, will affect the effect of magnetic conductivity. have a good one
