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Customized block cast alnico permanent magnets with semicircle for liquid magnetic separator

Cast Alnico Blocks with semicircle
Grade: Alnico 5DG, Alnico 5-7
Tolerances: Cast surface +/-0.38-+/-0.5mm
Ground surface +/-0.025-+/-0.1mm
Dimensions: Typical dimensions and customized
Certification ISO/TS16949:2009
Application: Holding magnets

Quantity:
  • DunBen

Alnico magnets, composed of primarily aluminum (Al), nickel (Ni), and cobalt (Co), were developed in the 1940's. This class of magnet remains a preferred material because of its 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. Sintered Alnico is made from a powdered mixture of ingredients that are pressed into a die under tons of pressure. The Sintering process allows for the magnets to be manufactured to tighter tolerances and higher mechanical strength.


Cast Alnico is manufactured by pouring a molten metal alloy into a mold and then further processing it through various heat-treat cycles.

 The resulting magnet has a dark gray exterior appearance, and may have a rough surface.Machined surfaces have a shiny appearance similar to steel. It permits high temperature operation.

 
Cast Alnico 5 is the most commonly used in the industry: rotating machinery, motors, and instruments, sensor devices, holding applications and so on.

Alnico 8 and Alnico 9 has a higher coercive force and is usually used in disc shapes.


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: AlNiCo5, AlNiCo5DG, AlNiCo .
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


Typical Magnetic Properties
 
Grade MMPA Equivalent Br Hcb Hcj (BH)max Remark
mT Gs kA/m Oe kA/m Oe kJ/m3 MGOe
LN10 Alnico3 600 6000 40 500 43 540 10 1.20 Isotropic
LNG13 Alnico2 680 6800 48 600 51 640 13 1.60
LNGT18 Alnico8 580 5800 90 1130 92 1160 18 2.20
LNG37 Alnico5 1200 12000 48 600 49 610 37 4.65 Anisotropic
LNG40 1250 12500 48 600 49 610 40 5.00
LNG44 1250 12500 52 650 53 660 44 5.50
LNG52 Alnico5DG 1300 13000 56 700 57 710 52 6.50
LNG60 Alnico5-7 1350 13500 59 740 60 750 60 7.50
LNGT28 Alnico6 1000 10000 58 720 59 740 28 3.50
LNGT36J Alnico8HC 700 7000 140 1750 148 1850 36 4.50
LNGT38 Alnico8 800 8000 110 1380 112 1400 38 4.75
LNGT44 880 8800 120 1500 122 1530 44 5.50
LNGT60 Alnico9 900 9000 110 1380 112 1400 60 7.50
LNGT72 1050 10500 112 1400 114 1430 72 9.00

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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