Silicon steel sheet belongs to metal material. Silicon steel sheet, also known as electrical steel, is an indispensable and important soft magnetic alloy in power, electronics and military industries, and is also the most productive metal functional material, which is mainly used as the iron core of various motors, generators and transformers. The production of silicon steel sheet is known as a handicraft in steel products because of its complex process, narrow process window and great production difficulty. Foreign production technologies are protected in the form of patents, which are regarded as the life of enterprises. The manufacturing technology and product quality of electrical steel plate is one of the important symbols to measure the production and scientific and technological development level of a country's special steel. The output of silicon steel sheets in the world accounts for about 1% of the total steel products. China began to produce hot-rolled low-silicon silicon steel sheets from 1953, hot-rolled high-silicon steel sheets from 1955, cold-rolled oriented thin silicon steel strips from 1962, and cold-rolled oriented silicon steel strips from 1970s.