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Maximum Weight of Manually Stacked Core: 120 Tons
Gap Limit at the Joint: Less than 1mm
Window Height Precision: ±1mm
Window Width Precision: ±1mm
We meticulously calculate each project according to your detailed drawings. If parameters are within our acceptable range, we provide an updated quotation. Upon your confirmation, we proceed to manufacture precisely according to your specifications.
Silicon steel sheet is the core material of transformer iron cores. It is a silicon-iron soft magnetic alloy with extremely low carbon content, with a silicon content of 0.5%-4.5%. Silicon can improve the resistivity and maximum magnetic permeability of iron, and reduce coercivity, iron loss and magnetic aging.
In terms of performance, low iron loss is its key indicator. Countries classify grades based on this, and the lower the iron loss, the higher the grade. It has high magnetic induction in a strong magnetic field, which can reduce the volume and weight of the iron core. Its surface is smooth and flat, with uniform thickness, which can improve the core filling factor. It has good punchability, and the surface insulating film has excellent adhesion and weldability, with basically no magnetic aging.
In application, transformer iron cores usually use 0.35mm thick cold-rolled silicon steel sheets, which are cut and stacked into a "day" or "mouth" shape. The iron core column is wound with primary and secondary windings. According to the silicon content, it can be divided into low-silicon sheets (<2.8%, used in motors) and high-silicon sheets (2.8%-4.8%, with good magnetism, used in transformer iron cores).
It introduces that silicon steel sheet is an iron-silicon soft magnetic alloy with extremely low carbon content, and the silicon content is generally 0.5% - 4.5%. Its production process is complex, and it is known as a craft in steel products. It is mainly used to make iron cores of transformers, motors and generators. The article also covers the origin and performance requirements of silicon steel sheets, pointing out that low iron loss of silicon steel sheets is an important indicator. Moreover, as the silicon content increases, the iron loss, punchability and magnetic induction decrease, while the hardness increases. The higher the operating frequency, the thinner the silicon steel sheet should be selected.