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Amorphous Block Cores

AM rectangle forms 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.

 

AM rectangle forms 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):  28            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

    

FORM Dimensions:

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

Specification:   

Type-a

length(+/-0.5)

width(+/-0.3)

height(+/-0.2)

weight(g)

Type-b

length(+/-0.5)

width(+/-0.3)

height(+/-0.2)

weight(g)

1

90

25

55

790

1

25

25

55

220

2

100

30

85

1640

2

30

30

85

490

3

106

35

85

2030

3

35

35

85

670

4

110

30

30

635

4

30

30

25

140

5

120

40

40

1240

5

30

40

40

310

6

135

45

45

1760

6

35

45

45

455

7

140

35

36

1138

7

30

35

36

243

8

150

50

50

2420

8

30

50

50

484

9

155

45

40

1800

9

35

45

40

406

 

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.


 
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