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Bonded Alnico Magnets

Bonded magnet is one of the most important magnetic materials. It opened a new world of application possibilities. Thermo-elastomer and thermo-plastic resins can be blended together with a variety of magnetic powders to form injection molded, compression and flexible magnets.

Characteristics:

  • Excellent temp. Stability (temp. coefficient of Br is about ¨C0.02%/K)

  • Excellent magnetic evenness and stability

  • Strong anti-demagnetization capability

Bonded Alnico magnet is a precipitation hardened permanent magnet and possesses not only high coercive force but also stability of residual flux density on the temperature and aging effect. They also have excellent size tolerance and mechanical strength.

Application:

  •  Due to the characteristics of above mentioned. It is widely used as magnetic driven bearing of power energy measuring instrument.

  • High stability magnetic sensor

  • Automatic control surveying instrument

Magnetic properties and physical features of isotropic AlNiCo bonded magnets

Property Grade

Residual Flux Density Br.

Coercive Force Hcb

Intrinsic Coercive force Hcj

Max. energy product (BH)max

Relative Recoil Permeability

Density
d

Temp. Coefficient

Curie Temp.
Tc

Recommended Magnetization Field

KGs

(mT)

Oe

(KA/m)

Oe

(KA/m)

MGOe

(KJ/m3)

----------

g/cm3

%/K

Koe

(KA/m)

XAINiCo7/8

3.4 (340)

900 (72)

1050 (84)

0.88 (7.0)

3.0

5.6

-0.02

850

3.0 (240)

XAINiCo8/10

3.5 (350)

1000 (80)

1200 (96)

1.00 (8.0)

3.0

5.8

-0.02

850

 

 

Alnico  magnets Excellent temperature stability, high residual induction, and relatively high energies characterize Alnico materials, composed primarily of alloys of Aluminum, Nickel, and Cobalt. They are manufactured through either a casting or sintering process.
A
lnico  (Aluminum-Nickel-Cobalt) Magnet is high-energy permanent magnet, which posses high flux density, high coercive, high energy product and extreme stability for temperature changes. It exhibits good resistance to demagnetization, stability in high temperatures and excellent conduction


                                                                                                                             

 

 

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