Conventional silicon steels are widely used for electrical power apparatus, electrical components of industrial products, and home electronics. However, most silicon steel strips are thicker than 0.20mm and only applied to apparatus operated at industrial frequencies.
The thin silicon steel strips are suitable for being used at higher frequencies. The thickness of the silicon steel strips has been reduced to the world's thinnest level, reducing the core loss caused by eddy currents. Combined with the insulation coating technology, the lamination factor has been improved.
The thin silicon steel strips assist in saving energy and reducing the size of high-frequency reactors, transformers, and motors.
The thin silicon steel strips help save cost and improve the performance of equipment at high frequencies.
■ Low Core Loss
They have low core loss at high frequencies, improving the efficiency and reducing the energy consumption of reactors and transformers.
■ High Permeability
With the characteristic of high permeability, it can be applied for shields.
■ High Saturation Flux Density
They contribute to the down-sizing of high frequency reactors and transformers due to high saturation flux density.
■ Excellent insulation coating
With inorganic coating, it has excellent insulation property, enabling the best stress relief annealing (results).
|Table 1 Core loss properties|
|Grade||Core loss (W/K|
|Table 2 Permeability and magnetic flux density properties|
|Grade||Alternating permeability x 10-3 (H/m)||Magnetic flux density (T)|
Note: The specimens are taken from the strips parallel to the rolling direction. The measurements are in accordance with JIS C 2550 after stress relief annealing.
|Table 3 Mechanical and electric properties|
Note: 1. Tensile strength and elongation are measured parallel to the rolling direction.
2. Hardness are measured by *1: H;0.5Kg, *2: H;0.3Kg, *3: H;0.1Kg.
|Table 4 Comparison of properties between various magnetic materials|
Magnetic flux density
DC max relative
|High silicon steel (0.1t)||1.29||23,000||31||0.82|
|Dust core (Sendust)||0.65||150||62||>10,000|
Material: Imported Japanese 0.05mm, 0.10mm oriented thin-gauge silicon steels.
Features: NICORE produces tape wound cores, block cores, U-cores and other special cores with high quality steels according to customers requirements.