Hangzhou Ualloy Material Co.,Ltd
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Nanocrystalline Core

Nanocrystalline Core

Nanocrystalline Alloy StripApplication area:Switch power transformer and Pulse transformer iron corePower transformer , precision current mutual inductor iron coreLeakage protection switch mutual indu

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Nanocrystalline Alloy Strip

Application area:

  • Switch power transformer and Pulse transformer iron core

  • Power transformer , precision current mutual inductor iron core

  • Leakage protection switch mutual inductor iron core

  • Filtering inductance, storage inductance, the electric reactor iron core

  • EMC common mode inductance and differential mode inductance iron core

  • Saturable reactor, magnetic amplifier, Spike killer, Pulse Compressor iron core and magnetic bead

Features:

  • High Saturation magnetic induction - reduce transformer volume

  • High magnetic permeability low coercive force- improve transformer efficiency, mutual inductor sensitivity, reduce coil distribution parameters

  • Low loss- reduce transformer temperature rise

  • Good temperature stability -  under 130℃ for long-term work

  • Lower price -  has the best cost performance of all the metal soft magnetic material

Typical Properties

Physical properties of Nanocrystalline alloy

Saturation magnetic induction (Bs)

1.25T

Hardness (Hv)

880

Curie temperature (TC)

560℃

Density (d)

7.2g/cm3

Crystallizing temperature( Tx)

510℃

Resistivity(r)

90mW-cm

Saturation magnetostriction coefficient  (ls)

<2×10-6

Continuous operating temperature range

-55-130℃

Magnetic properties of Nanocrystalline alloy

Product Type

Transverse magnetic annealing

No magnetic annealing

Longitudinal magnetic annealing

Initial permeability

>2×104

>8×104

>1×104

Maximum permeability

>5×104

>45×104

>50×104

Residual magnetic induction

<0.2 T

0.6 T

>0.85 T

Coercive force

<1.8A/m

<0.8A/m

<1.8A/m

Iron loss P(20kHz, 0.5T)

<30W/kg

<50 W/kg

<90W/kg

Iron loss P(100kHz, 0.3T)

<150W/kg

<150 W/kg

<300W/kg

Iron loss rate(-55°C –125C )

<15%

<15%

<15%

The comparison between Nanocrystalline alloy and Permalloy iron alloy

Basic parameter

Superfine crystal iron core

Permalloy iron alloy (1J85)

Ferrite

Saturation magnetic induction  Bs(T)

1.25

0.75

0.5

Residual magnetic induction Br(T)

0.2~0.9

-

0.20

Saturation magnetostriction coefficient (×10-6)

<2

<2

4

Resistivity (mmW-cm )

80

56

106

Curie temperature ∕℃

570

400

<200

Initial permeability μ0(Gs/Oe)

>8×104

>8×104

-

Maximum permeability μm(Gs/Oe)

>50×104

60×104

4×104

Coercive force Hc (A/m)

<2

<1

6

Iron loss (20KHz,0.5T) (W/Kg)

<35

-

No

Iron loss (50KHz,0.3T) (W/Kg)

<50

-

No

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