Square magnetic cores are made of magnetic materials such as ferrite, silicon steel sheets, soft magnetic powder alloys, or nanocrystalline tapes. They have a regular square or rectangular geometric structure and are often assembled together to form a closed magnetic circuit, suitable for square coil skeletons or compact circuit layouts. In the production process, different processes are adopted based on material differences: ferrite square magnetic cores are mixed, formed, and then high-temperature sintered; Silicon steel sheet square magnetic core is laminated by precision stamping; The soft magnetic powder alloy square magnetic core is pressed by magnetic powder and cured by heat treatment. Some products will have a uniform air gap set at the joint according to the magnetic performance requirements.

The design of the square structure gives it the characteristic of high space utilization and can adapt to miniaturized and modular electronic devices; A symmetrical magnetic circuit distribution can reduce magnetic field distortion and improve the stability of energy conversion; At the same time, the regular shape facilitates automated winding and batch assembly, and by adjusting material composition and air gap parameters, it can flexibly cover the working range from low frequency to high frequency.

The square magnetic cores produced by Wanli New Materials cover various material types: FSC ferrite square magnetic cores, SSC silicon steel sheet square magnetic cores, SMC soft magnetic powder alloy square magnetic cores, NCC nanocrystalline square magnetic cores. The following describes the size and magnetic permeability range of each material, as well as the characteristics and applications of these materials.