EI silicon steel core is made by Cold-rolled non-oriented electric silicon steel sheet (CRNGO) or Cold-rolled oriented electric silicon steel sheet (CRGO), the thickness is from 0.23mm-0.5mm, As a strategic partner of the steel mills, we purchase about 40K ton CRNGO every year.
Annealing is a new technological parameter of EI silicon steel sheet, the core loss of core can be reduced about 15% after annealing. the temperature of Cold-rolled silicon steel annealing is 670°C, the time of the most appropriate is 5.5h. And annealed in this process parameters, the measured value of the motor iron consumption has been close to the design value.
Annealed Silicon Steel Sheet EI Advantage:
A. we have 32 sets anneal equipment, can complete the order in time
B. The color of the core after annealing is same.
C. We have a professional team with 24-hour uninterrupted surveillance.
D. The surface situation of core is as good as before annealing, the coating is still working.
E. The core loss of silicon steel reduced at least 15% after annealing.
F. We have professional test equipment to test the core loss and the transformer