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Customzied Different Size Cast AlNiCo Ring Magnet

Material:Cast alnico magnet
Grade: alnico 2-alnico 9
Size:Typical dimensions and customized
Magnetism direction: Customzied Specific Requirements
Tolerances: Cast surface +/-0.38-+/-0.5 mm
Ground surface +/-0.01-+/-0.1 mm
Application: automobile parts, instrumentation, electroacoustics, motor, teaching and aerospace military, etc
Delivery Time: Sample:14-20 working days,20-30 working days for mass quantity.

Quantity:
  • DunBen

Product Details:

Alnico magnets, composed of primarily aluminum, nickel, and cobalt, were developed in the 1940's. This class of magnet remains a preferred material because of it's excellent temperature stability, high magnetic flux density, and resistance to corrosion. Alnico magnets are manufactured through a casting or sintering process. The casting process allows for the magnet to be manufactured into intricate and complex shapes, which are not possible with other magnetic materials.

 
  Magnetic Feature:

1) Material: Aluminum, nickel, cobalt and iron with varying additions of other elements;
2) Temperature: The max operation temp is up to 200 degree centigrade or 380 curie temperature;
3) Grade: AlNiCo3, AlNiCo5 AlNiCo8 AlNiCo9 and so on.
4) Shape: Ring, block, disc, bar and so on;
5) Size: According to customers' request;
6) Coating: Colour of metal casting
7) According to customer's request. We can supply different size magnetic hook.
8) Good quality with competitive price and best delivery date.
9) Application: Sensors, motors, rotors, wind turbines, wind generators, loudspeakers, magnetic holder, filters automobiles and so on.
10) Certificate: SGS test report
 
Applications:

1) Inner magnetic voltmeter/ammeter, measuring instrument, avometer, flow meter.
2) Magnetic sensors, polarized relay, terperature and pressure controller.
3) Buzzer of mobile phone, hearing aids, mini speaker
4) Lighter of automobile, odometer of automobile and motorcycle, permanent motor, adsorptive appliance
5) Widely applied in high stability field as aviation, space flight and military technologhy
In addition, due to the good corrosion resistance characteristic, non-coating is need for surface protection.
 
  Size Specifications:
Ring Out Diameter(mm) Inner Diameter(mm) Thickness(mm)
Maximum 200 150 120
Minimum 12 4 3

Physical Properties of Cast Alnico
Curie Temperature () 760-890
Max. Operating Temperature () 450-550
Resistivity (μohm.cm) 47-54
Hardness (Hv) 520-630
Density (g/cm⊃3;) 6.90-7.30
Relative Recoil Permeability (μrec) 1.70-4.70
Saturation Field Strength (kOe,kA/m) 2.7-6.3/215-500
Temperature Coefficient of Br (%/) -0.025 ~ -0.02
Temperature Coefficient of iHc (%/) +0.01 ~ +0.03

Typical Magnetic Performance Range for Cast Alnico Magnet, other standard
Grade Br Hcj BHmax USA stand IEC stand DIN stand UK stand
kGs mT Oe kA/m KJ/m3 MGOe MMPA IEC DE UK
LN10 6.5 650 530 42 10 1.2 AlNiCo3 AlNiCo9/3 / /
LNG11 7.2 720 480 37 11.2 1.4 AlNiCo1 AlNiCo8/4 AlNiCo120 AlNi
LNG13 7.0 700 620 50 13 1.6 AlNiCo2 AlNiCo12/6 AlNiCo160 AlNiCo
LNGT18 5.8 580 1250 100 18 2.2 I. AlNiCo 8 AlNiCo17/9 / /
LNG16 8.0 800 660 53 16 2.0 [AlNiCo4] / / /
LNG34 11.8 1180 550 44 34 4.25 [AlNiCo5C] / / /
LNG37 12.0 1200 600 48 37 4.65 AlNiCo37/5 AlNiCo500
 
Alcomax2
LNG40 12.2 1220 630 50 40 5.0 AlNiCo5 / /
LNG44 12.5 1250 650 52 44 5.5 AlNiCo44/5 Alcomax3
LNG52 13.0 1300 690 55 52 6.5 AlNiCo5DG AlNiCo52/6 AlNiCo600 Alcomax3 S.C.
LNG60 13.3 1330 750 60 60 7.5 AlNiCo5-7 / AlNiCo700 Columax
LNGT28 10.5 1050 700 56 28 3.5 AlNiCo6 AlNiCo26/6 AlNiCo400 Alcomax4
LNGT30 10.5 1050 750 60 30 3.75


LNGT32 8.0 800 1280 102 32 4.0 AlNiCo8 AlNiCo38/11 AlNiCo350 Hycomax2
LNGT40 8.2 820 1400 112 40 5.0
LNGT44 8.8 880 1540 123 44 5.5 AlNiCo8B / AlNiCo450 Hycomax3
LNGT48A 9.3 930 1540 123 48 6.0 AlNiCo8HE


LNGT48B 8.5 850 1650 132 48 6.0


LNGT60 9.0 900 1380 110 60 7.5 AlNiCo60/11 / /
LNGT72 10.5 1050 1410 112 72 9.0 AlNiCo9 / / /
LNGT80 10.8 1080 1540 123 80 10.0


LNGT88 11.0 1100 1575 126 88 11.0


LNGT92 11.5 1150 1575 126 92 11.5


LNGT36J 7.0 700 1750 140 36 4.5 AlNiCo8HC AlNiCo36/15 / /
LNGT40J 7.2 720 1900 152 40 5.0


LNGT44J 8.2 820 1800 144 44 5.5 AlNiCo44/15 / /
 
Cast Alnico Process Chart
Raw material -> forming- >smelting-> heat treatment-> surface treatment->precision grinding->inspection ->packing
Sintered Alnico Process Chart
Raw material ->powder-> forming-> sintered- >heat treatment-> surface treatment->precision grinding –>inspection- >packing

  重传alnico process flow

CONTACT US

  Hang Zhou XiaoShan Dunben Magnet  Co., Ltd 
 1702, Unit 2, Building 1, Dacheng Mingzuo, Shiixn Road, Xiaoshan, Hangzhou, Zhejiang, China
  86-571-82750965 
  86-571-82751287
 wang@dbmagnet.com
 

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