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Customized sintered high energy permanent magnets For Instruments,Sensors

Sintered AlNiCo Magnets
1.High intensity ans strong anticorrosion
2.Stable magnetic performance
3.Highest usage reach 500'C
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sintered alnico magnet for meters and sensors
Sintered alnico is made from a powdered mixture of ingredients that are pressed into a die under tons of pressure, sintered in a hydrogen atmosphere and then cooled either within a magnetic field or without .
 

Feature of Alnico magnets

 1. Very temperature stable, great for high heat applications 
2. Wide range of working temperatures, up to 550ºC
3. May be ground to size 
4. Does not lend itself to conventional machining (hard and brittle) 
5. High residual induction and energy product compared to ceramic material 
6. Low coercive force compared to ceramic and rare earth materials (more subject to demagnetization) 

Application for Sintered Alnico:
Speakers, Telephones, Mobile Phones 
Odometers, Electric Meters, Water Meters
Motors
Switches
Adhesives
Sensors
Sintered Alnico Magnetic Characteristics
 
GRADE Br Hcj Hcb (BH)max Density % Change Per C Tc REMARKS
mT Gs KA/m Oe KA/m Oe KJ/m3 MGOe g/cm3 %/K °C
FLN8 520 5200 43 540 40 500 8-10 1.0-1.25 6.8 -0.022 760 ISOTROPIC
FLNG12 700 7000 43 540 40 500 12-14 1.5-1.75 7.0 -0.014 810
FLNGT14 570 5700 78 980 76 950 14-16 1.75-2.0 7.1 -0.020 850
FLNGT18 560 5600 90 1130 88 1100 18-22 2.25-2.75 7.2 -0.020 850
FLNG28 1050 10500 47 590 46 580 28-33 3.5-4.15 7.2 -0.016 850 ANISOTROPIC
FLNG34 1100 11000 51 640 50 630 34-38 4.3-4.8 7.2 -0.016 890
FLNGT28 1000 10000 57 710 56 700 28-30 3.5-3.8 7.2 -0.020 850
FLNGT31 780 7800 106 1130 104 1300 33-36 3.9-4.5 7.2 -0.020 850
FLNG33J 650 6500 150 1880 136 1700 31-36 4.15-4.5 7.2 -0.020 850
FLNGT38 800 8000 126 1580 123 1550 38-42 4.75-5.3 7.2 -0.020 850
FLNGT42 880 8800 122 1530 120 1500 42-48 5.3-6.0 7.25 -0.020 850
 
Sintered Alnico Process Chart
Raw material ->powder-> forming-> sintered- >heat treatment-> surface treatment->precision grinding –>inspection- >packing
 

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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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