What kind of industry is silicon steel used mainly?
Silicon steel is a silicon iron alloy with silicon content of about 3%~5% and other major iron. Divided into oriented silicon steel and non oriented silicon steel, it is an important soft magnetic alloy in electric power, electronics and military industry. Use of hot rolled silicon steel: hot rolled electrical steel is mainly used for small motor, micro motor, such as the quality of some motor for washing machine, lampblack machine, and some high specification can be used for hot rolling of 450 inefficient motors.
The application of cold rolled non oriented silicon steel: the motor is basically made of non oriented silicon steel. Gap type motor (pump) is mainly used in cold rolled non oriented silicon steel uncoated electric welder for motor is divided into DC motor, AC motor two, using uncoated cold-rolled silicon steel can be DC motor, AC motor mainly used in coating 600 non oriented silicon steel. Air compressor, air pump motor can also use uncoated cold-rolled silicon steel. Micro motor using small household appliances mainly with non oriented 470. The main motor used in NC machine tools is 470. Air conditioning compressor motor mainly used 600, 800, 1000, 1300, mainly to see air-conditioning manufacturers requirements, the higher the general brand of air-conditioning quality is higher. Refrigerator motor: high quality 350, high quality 470, ordinary manufacturers mainly use high-grade 600 (Baosteel, Sinosteel, Pohang).
The main requirements of silicon steel performance are:1) the iron loss is low, which is the most important index of the quality of silicon steel sheet. Each country divides the grade according to the iron loss value, the iron loss is lower, the grade is higher.2) strong magnetic field, magnetic induction (magnetic sense) high, which makes the motor and transformer iron core volume and weight reduction, saving silicon steel sheet, copper wire and insulation materials.3) smooth surface, smooth and uniform thickness, can improve the filling coefficient of the iron core.4) it is very important for making micro motor and small motor.5) the adhesion and weldability of the surface insulation film are good, and it can prevent erosion and improve the punching quality.
