Crafts in Steel - Silicon Steel

Silicon steel refers to Fe-Si soft magnetic alloy, also known as electrical steel. Silicon steel Si mass percentage of 0.4% ~ 6.5%, with high permeability, low iron loss value of the excellent magnetic, with low core loss, high magnetic induction strength, punch sheet good, good surface quality of the steel plate, insulating film performance and other advantages. Silicon steel is mainly used for the preparation of all kinds of motors, generators and transformers and other power equipment, iron core, electric power, electronics and military industry must be indispensable metal functional materials, but also power equipment to improve efficiency and reduce energy consumption of key materials.

Silicon steel according to the Si mass fraction classification is divided into Si <0.5% electrical steel and 0.5 ~ 4.5% Si silicon steel two categories, both commonly known as electrical steel plate. The former has a wide range of needs in the manufacture of electromagnetic performance requirements are not high in the field of civil small electrical appliances, such silicon steel sheet is characterised by the silicon content is significantly lower than the conventional electrical steel, the preparation process is simple, low cost, similar to plain carbon steel. The latter contains extremely complex types and grades.

High-silicon steel refers to 4.5% ~ 6.7% Si Si-Fe alloy, with a significant reduction in iron loss at high frequencies, the maximum permeability, high, low coercivity, magnetic properties are extremely excellent, mainly used to manufacture high-frequency motors, high-frequency transformers, choke coils and high-frequency magnetic shielding, etc.. However, due to the high content of Si, room temperature plasticity is extremely poor, can not roll forming. 6.5% Si because of its unique magnetic properties and self-contained system, there are only a small number of non-oriented 6.5% Si-Fe alloy materials prepared through the silicone process can be supplied in rolls, and more performance advantages of the orientation of the 6.5% Si-Fe alloy preparation is more difficult.