What are the classifications of transformer silicon steel sheets
Hot rolled silicon steel sheet
Hot rolled silicon steel sheets are Fe Si alloys, melted in open hearth or electric furnace, repeatedly hot-rolled into thin plates, and finally annealed at 800-850 ℃. Hot rolled silicon steel sheets are mainly used in the production of generators, also known as hot-rolled motor silicon steel, but their utilization rate is low and energy loss is low. In recent years, relevant departments have been forced to gradually phase them out.
Cold rolled non oriented silicon steel sheet
Cold rolled non oriented silicon steel sheet is a more important use for making generators, also known as cold-rolled motor silicon steel. Its silicon content is 0.5% -3.0%, and the thickness of cold-rolled products is mostly supplied as 0.35mm and 0.5mm thick steel. Cold rolled non oriented silicon steel Bs is higher than the orientation of silicon steel; Compared with hot-rolled silicon steel, it has uniform thickness, high dimensional accuracy, and smooth surface, thereby improving the filling rate and magnetic function of the data.
Cold rolled oriented silicon steel sheet
The more important purpose of cold-rolled oriented silicon steel strip is for the production of transformers, also known as cold-rolled transformer silicon steel. Compared with cold-rolled non oriented silicon steel, oriented silicon steel has strong directionality in magnetic function; Has excellent high magnetic permeability and low loss characteristics in the easily magnetizable rolling direction. The iron loss of oriented steel strip in the rolling direction is only one-third of the transverse direction, with a magnetic permeability of 6:1. The iron loss is about half of that of hot-rolled plate, with a magnetic permeability of 2.5 times
High magnetic induction cold-rolled oriented silicon steel sheet
High voltage cold-rolled silicon steel strip is a unidirectional steel strip mainly used for the production of various electromagnetic components such as transformers and chokes in the telecommunications and exterior industries. Its use has two main characteristics: first, low current under weak magnetic field conditions, requiring data within the weak magnetic field range with high magnetic characteristics, namely high μ 0 values and high B values; The second characteristic is the high frequency of use, usually above 400Hz, and even up to 2MHz. In order to reduce eddy current losses and magnetic permeability under communication magnetic fields, strips of 0.05-0.20mm are usually used.
Article source: Transformer silicon steel sheethttp://www.cheungshun.com/
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