The manufacturing technology and product quality of the electric steel plate is one of the important symbols to measure the development of a special steel production and the development of science and technology in a country. At present, China's Cold-rolled electrical steel quantity, quality, specifications, brand, can not meet the needs of energy (electricity) industry development, in the production technology, equipment, management and scientific research, compared with Japan, there is a big gap.
Silicon steel is a silicon iron alloy with about 3% silicon content and mainly iron. It is an important soft magnetic alloy for electric, electronic and military industries. It is also the largest metal functional material. It is mainly used as the core of various motors, generators and transformers. Its production process is complex, manufacturing technology is strict, and foreign production techniques are protected in patent form, regarded as the life of an enterprise.
Hot rolled silicon steel sheet is melting Fe-Si alloy with open hearth furnace or electric furnace, repeatedly rolled into sheet, finally made at 800-850 DEG C after annealing. Hot rolled silicon steel sheet is mainly used in the manufacture of generator, so it is also called hot rolling motor and silicon steel sheet, but its utilization rate is low and energy consumption is great. In recent years, relevant departments have been forced to be eliminated.
