Alnico Magnet

• Fairly strong magnetic power (Power-Index(1) = 6~7)
• Relatively high cost (Cost-Index(2) = 7~8)
 • Anisotropic(3)
• Produced by casting or sintering powder metallurgical technique with alloy composite of Al-Ni-Fe-Co
• Very hard & brittle
• Poor resistance to demagnetization
• Excellent stability over a wide range of temperature
 
Physical Properties
Parameter
Curie Temp.
°C
860
Max.Operating Temp.
°C
525-550
Resistivity
µ ý.cm
47-54
Hardness
Hv
520-630
Density
g/cm3
6.9-7.3
Rev. Recoil Permeability
µ rec
1.70-4.70
Saturation Field Strength
kOe
2.7-6.3
kA/m
215-500
Temp.Coefficient of Br
%/°C
-0.025~-0.02
Temp.Coefficient of iHc
%/°C
+0.01~+0.03
Production Flow Chart
Cast AlNiCo
Sintered AlNiCo
 
NEXT
 
[ About Us | Products | Contact Us | Enquiry | Site Map ]
CopyrightCopyright© 2001 Magtech Industrial Co. All Rights Reserved