Permalloy metal core, amorphous, microcrystalline magnetic core introduction

Permalloy core and ferrite core production of high-frequency transformers, filters, inductors, magnetic amplifiers, pulse transformers, pulse compressors and other applications in high-end fields

 

Performance characteristics:

Permalloy metal core: All kinds of permalloy materials have their own different, compared with silicon steel materials and ferrite excellent typical magnetic properties, with higher temperature stability and aging stability. High initial permeability permalloy material (IJ79,IJ85,IJ86) core is often made of current transformer, small signal transformer; High rectangular Permalloy (IJ51) iron core is often made of magnetic amplifier, two-stage pulse transformer; Low remanence Permalloy (IJ67h) core is often used to make small and medium power unipolar pulse transformers.

 

Amorphous core:

(1) Iron-based amorphous iron core: has the highest saturation magnetic sensation in almost all amorphous alloy iron cores

Tensile strength (1.45 ~ 1.56T), while with high permeability, low coercivity, low loss, low excitation current and good temperature and aging stability. Mainly used to replace silicon steel sheet, as a variety of forms, different power frequency distribution transformers, medium frequency transformers, working frequency from 50Hz to 10KHz; As a high-power switching power reactor core, the use frequency can reach 50KHz.

(2) Fe-Ni based amorphous core: medium low saturation magnetic induction intensity (0.75T), high magnetic permeability,

Low coercivity, wear and corrosion resistance, good stability. It is often used to replace Permalloy core as zero sequence current transformer core in leakage switches.

(3) Cobalt-based amorphous core: has the highest permeability in all amorphous alloy cores, at the same time

It has medium and low saturation magnetic induction strength (0.65T), low coercivity, low loss, excellent wear resistance and corrosion resistance, good temperature stability and aging stability, shock and vibration resistance. Mainly used to replace Permalloy core and ferrite core to make high-frequency transformers, filter inductors, magnetic amplifiers, pulse transformers, pulse compressors and other applications in high-end fields (military)

 

Microcrystalline core:

High saturation magnetic induction strength (1.1 ~ 1.2T), high permeability, low coercivity, low loss and good stability, wear resistance, corrosion resistance, while having a low price, in all the metal soft magnetic material core has the best cost performance, the material used to make microcrystalline iron core is known as "green material ". Widely used to replace silicon steel, permalloy and ferrite, as various forms of high frequency (20KHz100KHz) switching power supply in large and medium power main transformer, control transformer, wave inductor, energy storage inductor, reactor, magnetic amplifier and saturated reactor core,EMC filter common inductor and differential mode inductor core,IDSN micro isolation transformer core ;

It is also widely used in various transformer core with the same precision.

 

Ring specification range:

Core maximum outer diameter :750mm

Minimum inner diameter of magnetic core :6mm

Minimum core width :5mm

Maximum width of magnetic core :40mm (can be stacked to get wider)

Other specifications can be customized according to customer needs

 

Reference note:

Permalloy metal core, amorphous, microcrystalline magnetic core electromagnetic performance status:

Transverse magnetic heat treatment, low Br, has certain conductance characteristics, suitable for low-power unipolar pulse transformer, single-ended switching power transformer, filter inductor, reactor;

Conventional heat treatment, low Pc, very low excitation current; Suitable for medium frequency transformer;

Longitudinal magnetic heat treatment, high Br, suitable for distribution transformers, intermediate frequency transformers, double-ended switching power transformers, high-power bipolar pulse transformers, saturated reactors and pulse compressors