What is the standard of silicon steel? Ask God for help
High magnetic induction cold rolled silicon steel sheet: high magnetic induction cold rolled silicon steel strip is a single oriented steel strip. It is mainly used in the manufacture of various transformers, chokes and other electromagnetic components in the telecommunication and instrument industry. The application has two main features, one is that the small current condition of weak magnetic field, the requirements of the material has in the weak magnetic field within the range of high magnetic properties, high value and high 0 mu B; the second characteristic is the use of high frequency, usually in more than 400Hz, even up to 2MHz. In order to reduce the eddy current loss and the effective permeability under alternating magnetic field, the thin strip of 0.05-0.20mm is usually used.
The most important use of cold-rolled non oriented silicon steel sheet is used for generator manufacture, so it is also called cold-rolled steel silicon steel. Its silicon content of 0.5%-3.0%, cold-rolled to the finished product thickness, the supply of mostly 0.35mm and 0.5mm thick steel strip. The Bs of cold-rolled non oriented silicon steel is higher than that of oriented silicon steel. Compared with hot rolled silicon steel, it has uniform thickness, high dimensional accuracy, smooth and smooth surface and improved filling coefficient and magnetic properties of the material. Cold rolled oriented silicon steel sheet: cold rolled oriented silicon steel strip, the most important purpose is used for transformer manufacturing, so also known as cold-rolled transformer silicon steel. Compared with cold rolled non oriented silicon steel, the magnetic properties of oriented silicon steel have a strong directionality, and it has high permeability and low loss in the direction of easy rolling. The orientation of strip in the rolling direction of the iron loss is only transverse 1/3, the permeability ratio was 6:1, the iron loss is about 1/2 hot rolled, the permeability is 2.5 times of the latter.
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. 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, the number of China's cold rolled electric steel quality, specification grade, energy (electricity) can not meet the needs of the industrial development in the production technology and equipment, compared with the Japanese management and scientific research, there is a big gap. Classification: silicon steel hot rolled silicon steel sheet, 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 eliminate. Cold rolled non oriented silicon steel sheet:
Silicon steel silicon steel is silicon content of about 3%, and other major iron ferrosilicon alloy. 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.
