86-571-82750965             wang@dbmagnet.com
You are here: Home » Products » Magnets for all industries » Aerospace and defense industry » Cast alnico block magnet with holes and N S Poles for motor

Latest News

Share to:

Cast alnico block magnet with holes and N S Poles for motor

Cast alnico block magnet with holes
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

Quantity:
  • DunBen
AlNiCo magnets are made primarily from aluminum, nickel, cobalt, copper, iron and sometimes titanium.
 
Characteristics of AlNiCo Magnets  
         
1. Compact crystal,high intensity,good chemistry stability,strong anticorrosion.
2. Even elements ,excellent and stable magnetic performance
3. Excellent temperature stability (temp.coefficient or Br is the smallest amount all of the other permanent magnets.)                                               
4. Highest usage temperature reaches 500'C                    
5. Uitable for small volume and complex shape and magnet assemble for sintered AlNiCo

Key Advantages
 

Sintered Alnico Magnets:
 

· Excellent temperature stability

· Strong corrosion resistance

· Fine grain

· Compact crystal.

· Excellent magnetic consistence and evenness.

· Suitable for small volume and complex shape magnets.


Cast Alnico Magnets:

 

· 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.


Application:

Speedometer, Magnetic Separators, Magnetos, MagneticSensors, Electron tubes, Traveling wave tubes, Radar, Holding magnets, Receiver, Clutches and bearings, Motors, Relays, Controls, Generators, Telephones, Microphones, Loudspeakers, Bell ringers, Security systems, Cow magnets.


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

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

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
 

COMPANY

FEEDBACK

Scan QR Code

Copyright © Hang Zhou XiaoShan Dunben Magnet  Co., Ltd All rights reserved.
Designed by Leadong    Manage Entrance