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Amorphous Block Cores are made by stacking iron-based amorphous alloy ribbons or laminations. The laminations are banded together by an adhesive rated for a continuous operating temperature of 155°C. The amorphous alloy itself has a higher continuous operating temperature. These forms offer a unique combination of high saturation induction (1.56 T), high permeability and low core loss.
Amorphous Block Cores can be used in medium frequency (<20 kHz) and high power (100 to 300 kW) inverters. These have core losses lower than those of 3% or 6% Si steels.
Properties:
Typical ribbon thickness (μm): 25
Density (g/cm3): 7.18
Thermal expansion Coef. (ppm/°C): 7.6
Crystallization temperature (°C): 550
Saturation Induction (T): 1.56
Electrical resistivity (μΩ.•cm): 130
Curie Temperature (°C): 410
Continuous Operating Temperature (°C): 155
Core-loss @16kHz,37mT: < 1w/kg
Dimensions：
|
Min,mm |
Max,mm |
Tolerance,mm |
|
|
Length, L |
20 |
800 |
±1 |
|
Width, W |
10 |
85 |
±0.5 |
|
Height,, H |
5 |
100 |
±0.5 |
Specifications:
|
Type-a |
Length
|
Width
|
Height
|
Weight （g） |
Type-b |
Length
|
Width
|
Height
|
Weight (g) |
|
1 |
90 |
25 |
55 |
790 |
12 |
25 |
25 |
55 |
220 |
|
2 |
100 |
30 |
85 |
1640 |
13 |
30 |
30 |
85 |
490 |
|
3 |
106 |
35 |
85 |
2030 |
14 |
35 |
35 |
85 |
670 |
|
4 |
110 |
30 |
30 |
635 |
15 |
30 |
30 |
25 |
140 |
|
5 |
120 |
40 |
40 |
1240 |
16 |
30 |
40 |
40 |
310 |
|
6 |
135 |
45 |
45 |
1760 |
17 |
35 |
45 |
45 |
455 |
|
7 |
140 |
35 |
36 |
1138 |
18 |
30 |
35 |
36 |
243 |
|
8 |
150 |
50 |
50 |
2420 |
19 |
30 |
50 |
50 |
484 |
|
9 |
155 |
45 |
40 |
1800 |
20 |
35 |
45 |
40 |
406 |
|
10 |
100 |
10 |
10 |
62 |
21 |
33 |
10 |
10 |
21 |
|
11 |
300 |
20 |
15 |
550 |
22 |
450 |
15 |
15 |
620 |
Stacking factor = 90 ± 3%
Cross-sectional area of the form = W x H x 0.90/100 cm2
Mass of the form = L x W x H x 0.90 x 7.18 / (1000 x 1000) kg
Attention: All the data listed in this catalogue are got from optimum-annealed samples. When these ribbons are made into cores, there may be some variation of the property according to processing technique. All the data here are only for references, but not for guaranty of any order. Cores with other specifications can be provided concerning to customer’s demand.
