What is the standard content of ingredients in oriented electrical steel?

14 Dec 2023
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GNEE Steel CRGO Silicon Steel
Grain Oriented Flatrolled Electrical Steel, also known as Cold Federal Social Oriented Research Silicon Steel (English professional name 3360 Grain Oriented Flatrolled Electrical Steel), contains 2.9%~3.5% Si. The steel plate is organized through a crystal structure and refers to cold-rolled automotive electrical engineering with certain economic rules and directions in China. steel. Grain-oriented electrical steel is an indispensable soft magnetic material in the power industry and is mainly used in transformers, rectifiers, reactors, large motors and other industries. The state stated that the mandatory dumping of imported value-oriented electrical appliances originating in Japan, South Korea and the European Union has caused damage to China's domestic orientation electrical appliance industry, and decided to start from July 23 on imported value-oriented electrical appliances originating in these countries. Force companies to impose anti-dumping duties on their products. The tax rate is 37.3% to 46.3%, and the implementation period is 5 years.

Grain-oriented electrical steel, also known as silicon steel sheet, is an important soft magnetic alloy indispensable in electric power, electronics, military and other industries. Also the most prolific metal functional material, oriented electrical steel is mainly used as the core of various motors, generators and transformers. Its production process is complex, manufacturing information technicians are strict, and foreign production management technologies are protected by the environment in the form of patents, which are considered the life of an enterprise. The manufacturing technology and product quality of electrical steel plates are one of the important indicators to measure the level of special steel production and technological development of a country. At present, the quantity, quality, and specifications of my country's cold-rolled electricians at different levels cannot meet the development needs of China's energy (power) industrial enterprises. There is a big gap compared with the research on production information technology, equipment, management, and scientific research capabilities.
Cold rolled oriented electrical steel
What is the standard content of ingredients in oriented electrical steel?

Grain-oriented electrical steel, cold-rolled directional silicon steel, contains 2.9%~3.5% Si. The steel plate is organized through a crystal structure and refers to cold-rolled automotive electrical steel with certain social rules and directions in China. The carbon content does not exceed 0.08%, and it can contain less than 1.0% aluminum. The proportions of other elements do not have the characteristics of other alloy steels. The thickness does not exceed 0.56 mm. Roll, it can be of any width; plate shape, its width is at least 10 times the thickness. Usually refers to the single-directional silicon steel sheet with a Gaussian model structure, that is, the (110) crystal plane can be parallel to the roller surface, and the [001] crystal plane is parallel to the rolling technical direction.

Development stages of grain-oriented electrical steel

This stage is mainly through the development and education stage of cold-rolled ordinary value-oriented silicon steel (GO) plates. In 1930, the American Gauss used cold rolling and degradation research methods to start developing and analyzing a large number of related experiments to explore the manufacturing process of oriented silicon steel tape coils with the grain magnetization direction parallel to the rolling direction. In 1933, Goss cooperated with Westinghouse Electric Company to develop production based on Goss's patented information technology. Since then, Armco has been rapidly analyzing trace amounts of carbon and improving its manufacturing processes and equipment, gradually improving product quality. By 1958, after mastering the two full-process manufacturing processes of MnS inhibitor and flat plate high-temperature heating, the development of patented information technology for manufacturing oriented silicon steel could basically be effectively improved, and the magnetic properties of the product were greatly improved and stabilized. In 1959, products with a thickness of 0.30 mm began to be produced, and in 1963, products with a thickness of 0.27 mm were produced. In the early 1940s, Armco Steel Enterprises began to produce different cold-rolled non-oriented silicon steel sheets. From 1963 to 1967, the United Kingdom, Japan and other countries stopped producing silicon steel sheets. Hot-rolled silicon steel sheets are gradually replaced by cold-rolled non-directional electrical and cold-rolled directional silicon steel sheets. Development stage of highly magnetically oriented silicon steel
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