MEWOI-Ultra-thin Silicon Steel Core

2023-07-13 15:47:10

Main Features :
Serial No. :

Specification

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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 haVE 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 is improved.

The thin silicon steel strips improve energy consumption and reduce size in high-frequency reactors, transformers, and motors.

The thin silicon steel strips reduce cost and improve the equipment performance at high frequencies.

Characteristics

■ Low Core Loss

Low core loss at high frequencies improves equipment efficiency and reduce energy consumption of reactors and transformers.

■ High Permeability

For shields applications.

■ High Saturation Flux Density

For downsized high frequency reactors and transformers.

■ Excellent insulation coating

Excellent insulation property enables ideal stress relief annealing (results).

Magnetic Parameters

Table 1 Core loss properties
Grade	Core loss (W/K
Grade	W15/50	W15/100	W10/400	W10/1000	W5/2000	W2/5000	W1/10000	W0.5/20000
GT-100	1.2	3.0	6.1	21.3	18.0	15.2	10.4	13.0
GT-050	1.7	5.0	7.3	17.	13.0	10.2	7.1	5.3

Table 2 Permeability and magnetic flux density properties
Grade	Alternating permeability x 10-3 (H/m)					Magnetic flux density (T)
Grade	μ10/400	μ10/1000	μ5/2000	μ1/10000	μ0.5/20000	B8	B25	B50
GT-100	20.4	16.2	9.6	2.8	1.2	1.82	---	---
GT-050	16.6	16.0	9.9	2.7	1.5	1.75	---	---

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
Grade	Density (g/cm3)	Space factor (%)	Tensile strength (N/mm2)	Elongation (%)	Hardness (Hv)	Specific resistance (μΩcm)
GT-100	7.65	93	420	9	202*2	48
GT-050	7.65	90	387	11	179*2	48

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
Material	Magnetic flux density B8 (T)	DC max relative permeability μm	Core loss W1/20000 (W/Kg)	Specific resistance (μΩm)
GT-100	1.82	24,000	35	0.48
GT-050	1.75	14,000	51	0.48
High silicon steel (0.1t)	1.29	23,000	31	0.82
Amorphous	1.56	300,000	6	1.30
Nanocrystalline	1.23	70,000	4	0.01
Dust core (Sendust)	0.65	150	62	>10,000
Ferrite (Mn-Zn)	0.45	3,500	3	>100,000