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High Powered Cast Alnico Rod Magnets For Sensors And Balance,Plug magnet

Cast Alnico Rod Magnets:
Material:Cast alnico magnet
Grade:alnico5,alnico8,alnico9
Size:customized
Magnetism direction: Customzied Specific Requirements
Tolerance: +/-0.05mm
Application: Holding Magnets,Motors And Generators,Telephones

Quantity:
  • dunben

High Powered Cast Alnico Rod Magnets,Plug magnet
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.

 Cast Alnico Magnets Key Advantages:

 

· Excellent temperature stability

· Strong corrosion resistance

· Excellent capacity

· High density and magnetic properties

· Shorter production lead time

· Temperature factor of Br is the smallest among all the permanent magnets

· Cast Alnico magnets can be produced in relatively complex shapes

· Tooling for cast Alnico magnets is relatively low, since sand molds are generally used for the casting process.

Rod Alnico Magnet Applications:
Precision magnetic sensors for balance
Guitar pickups
Sensitive Relays and transformers
Speakers

Size Specifications:

 
Diameter (MM) Thickness/Height/Length (MM)
1.5-3.0 1.0-25.0
3.0-5.0 1.0-102.0
5.0-30.0 1.0-300.0
30.0-50.0 3.0-300.0
50.0-100.0 5.0-300.0
100.0-260.0 20.0-400.0

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/cm³) 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

Performance of Cast AlNiCo Magnets
Grade Br
KGs (Mt)
Hcj
Oe (KA/m)
Bhmax
MGOe(KJ/m3)
D
g/cm3
MMPA
Class
α %/°C
Br (Hcj)
TC.
°C
TW. 
°C
LNG37 12.0(1200) 600 (48) 4.65 (37.0) 7.3 Alnico5 -0.02(+0.03) 860 525
LNG40 12.5(1250) 600 (48) 5.00 (40.0) 7.3 Alnico5 -0.02(+0.03) 860 525
LNG44 12.5(1250) 650 (52) 5.50 (44.0) 7.3 Alnico5 -0.02(+0.03) 860 525
LNG48 12.5(1250) 650 (52) 6.00 (48.0) 7.3 Alnico5DG -0.02(+0.03) 860 525
 
 
Cast Alnico Process Chart
Raw material -> forming- >smelting-> heat treatment-> surface treatment->precision grinding->inspection ->packing

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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