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Sintered Ferrite Magnet

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The chemical composition of magnets is iron oxide, barium and strontium elements. SrO-6 (Strontium Carbonate), Fe2O3 (Ferrite Oxide) or BaO-6 (Bariumar Bonate) (Fe2O3).

It is manufactured under a powder metallurgy process and various types of: Isotropic Barium Magnet and Anisotropic (Strontium or Barium).

Ferrite magnet is most widely used and have won wide acceptance. Due to it is good resistance to demagnetization, excellent corrosion resistance and the biggest advantage of such economic cost.

The Ferrite magnet is widely from most types of DC motors, loudspeakers, Magnetic Instruments, magnetic Holders and automotive sensors. The magnetizing in various patterns can be made depending upon the usage, various sizes and shapes can be made depending according to the customer's demand.
Physical and reference technical characteristics of permanent Ferrite materials:

Parameter

Value

Curie Temperature

450°C

Operation Temperature

250°C

Recoil Permeability

1.05 - 1.3rec

Hardness

480 - 580 HV

Density

4.7 - 5.0 g/cm3

Saturation Field Strength

10 KOe

Temperature Coefficient of Br

-0.2%(0-100°C)

Temperature Coefficient of iHc

0.3% (0-100°C)


Magnetic Properties of Ferrite (Ceramic) Magnet -Dry/Wet

Properties

Residual Flux Density (Br)

Coercive Force(bHc)

Coercive Force(iHc)

Max Energy Product(BH) max

Grade

MT

KG

KA/m

KOe

KA/m

KOe

Kj/m3

MGOe

Y-10T (C1)

200/230

2.00/2.30

125/148

1.57/1.84

210/258

2.64/3.5

6.5/8.36

0.8/1.05

Y25

360/400

3.60/4.00

135/170

1.70/2.14

140/200

1.76/2.51

22.5/28.0

2.8/3.50

Y30 (C5)

370/400

3.70/4.00

191/210

2.40/2.65

180/220

2.26/2.77

26.0/30.0

3.3/3.80

Y30BH

380/400

3.80/4.00

230/275

2.89/3.46

235/290

2.95/3.65

27.0/32.5

3.4/4.10

Y33

410/430

4.10/4.30

220/250

2.77/3.14

225/255

2.83/3.21

31.5/33.0

4.0/4.20

Y35

400/420

4.00/4.20

175/195

2.20/2.45

180/200

2.26/2.51

30.0/32.0

3.8/4.00

C8A

385/390

3.85/3.90

235/255

2.95/3.20

242/265

3.05/3.33

27.8/30.0

3.5/3.70

C10

400/410

4.00/4.10

288/300

3.62/3.77

280/287

3.51/3.60

30.4/31.9

3.8/4.00
Features
  • Produce by powder metallurgical method.
  • High electric resistance to demagnetization and good temperature stability.
  • Multi-poles magnetization available and most widely used permanent magnet.
  • Lowest cost and Suitable for mass production.

Main Products

Sintered ferrite magnet, Neodymium iron boron, Alnico magnet, Samarium cobalt(smco) magnet, Magnetic holder, Flexible rubber magnet.

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