The material properties of ultra-thin silicon steel core are remarkable, which are mainly reflected in high magnetic sensitivity, small size, low power consumption and fine process performance.


The ultra-thin silicon steel core has higher magnetic sensitivity, and its output power is larger and the use efficiency is higher than that of ordinary silicon steel sheet core. Due to its small size, the ultra-thin silicon steel core consumes relatively little power at high frequencies, the temperature rises slowly, the iron loss is smaller, and therefore more durable. The process performance of ultra-thin silicon steel core is more fine, there is no slag dropping phenomenon during processing, magnetic stability, high pressure stability has also increased.


In terms of manufacturing process, the production process of ultra-thin silicon steel core is more complicated. Pure silicon particles or high silicon content ferrosilicon alloy particles are added into the electrolyte to form a composite plating electrolyte containing silicon particles uniformly dispersed. Using pure iron strip, low carbon steel strip or low silicon silicon steel strip as the cathode plating thin strip, the cathode plating thin strip is covered with a layer of iron through the brush composite silicon plating process to form a composite coated steel strip whose core is the steel strip matrix. The silicon content and electrodeposition rate of the composite coating of ferrosilicon particles were controlled by adjusting the silicon content in the composite plating electrolyte, the brush plating voltage and the transfer speed of the thin strip of the cathode plating. The uniform diffusion heat treatment of the composite coated steel strip was carried out to make the silicon-containing particles uniformly diffuse into the core steel strip matrix.


In summary, ultra-thin silicon steel core has been widely used in electronics, power and other fields by virtue of its superior material properties and complex manufacturing process.