capability of silicon steel

Silicon steel is also called "electrical steel", is a very low carbon ferrosilicon soft magnetic alloy. The addition of silicon can not only increase the resistivity and maximum permeability of iron, on the other hand, it can also reduce the core loss (iron loss), coercivity, magnetic aging. It is generally used in the iron cores of various motors and transformers, and is an indispensable soft magnetic alloy in the power, electronics and military industries.

(1) According to the production process: can be divided into hot-rolled and cold-rolled silicon steel, hot-rolled silicon steel is low availability, large energy loss, has gradually begun to be phased out. Cold-rolled silicon steel is divided into oriented silicon steel and non-oriented silicon steel according to the internal grain orientation.

(2) According to the different silicon content, electrical steel is divided into low silicon chips (low grade) and high silicon chips (high grade). Low silicon sheet has a certain mechanical strength, mainly used in the manufacture of motor, commonly known as motor silicon steel sheet; High silicon is good magnetic, but more brittle, mainly used in the manufacture of transformer core, commonly known as transformer silicon steel sheet.

The grain of oriented silicon steel is basically in one direction, and the silicon content is high, which is mainly used in transformer manufacturing. Non-oriented silicon steel has disorganized grain distribution and low silicon content, which is mainly used in motor manufacturing. The silicon content is generally limited to 3%; Cold-rolled silicon steel is divided into cold-rolled non-oriented silicon steel and cold-rolled oriented silicon steel.

(1) The production process requirements of cold-rolled non-oriented silicon steel are relatively low, and the silicon mass fraction is between 0.5% and 3.0%. The finished product thickness after cold rolling is generally 0.35 and 0.5mm thick steel strip. Its Bs is higher than oriented silicon steel, uniform thickness, high dimensional accuracy, smooth surface, improve the filling coefficient and magnetic properties of the material.

(2) The silicon mass fraction of cold-rolled oriented silicon steel is above 3.0%, and the carbon mass fraction is 0.03%-0.05%.