What is silicon steel used for?
Well, what are the uses of silicon steel sheet? According to the survey report, silicon steel sheet can be used for smelting and rolling. We will take a look at the introduction of smelting and rolling.
The main requirements of silicon steel are: (1) low iron loss; this is the most important index of 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. The magnetic induction intensity (magnetic induction) is high under a strong magnetic field, which reduces the volume and weight of the iron core of the motor and transformer, and saves silicon steel sheets, copper wires and insulating materials. The surface is smooth, smooth and uniform in thickness, and the filling coefficient of the iron core can be increased. Good punching quality, more important for the manufacture of micro and small motors. The adhesion and weldability of the surface insulation film are good, and it can prevent erosion and improve the punching quality. The basic magnetic aging.
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. 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 sheet is a very high permeability material, mainly used in generators, motors, electromagnets and other industries! The silicon steel sheet is mainly used to make all kinds of transformers, motors and generator cores. The world's silicon steel sheet production accounts for about 1% of the total steel (see precision alloy).
Silicon steel is mainly smelted by oxygen converter (also can be smelted by an electric arc furnace), in combination with molten steel vacuum treatment and AOD Technology (see outside refining), and die casting or continuous casting method is adopted. According to different uses, smelting, change the silicon (0.5 ~ 4.5%) and aluminum (0.2 ~ 0.5%) content, in order to meet the requirements of different magnetic. The silicon and aluminum content of high grade silicon steel sheets increase accordingly. Reduce carbon, sulfur and inclusions as much as possible.
