This list informs about the physical values of the mostly used Alnico and Ticonal type materials, product of PRAMIZ Ltd., made by the powder metallurgy technology.
Alnico and Ticonal magnets are metallic permanent magnets based of Fe, Al, Ni, Co, Cu and Ti alloy They have fairly high remanence Br and high energy product (B.H)max, low temperature coefficient of remanence - 0.02%/°C, high Curie-temperature 850°C and maximum temperature of use - 450°C. These magnetic properties make Alnico and Ticonal magnets irreplaceable to use in electrical measuring devices (moving coil measuring instruments, magnetic brake for electromechanical watt-hour meters), precise electroacoustic transducers (loudspeakers, microphones), switch sensors and other applications which require temperature stable and time stable magnets.
The magnetic properties of Alnico and Ticonal type materials, product of PRAMIZ Ltd. are presented in the table:
Materia |
* |
Minimum values |
|||||
(B.H)max |
Br |
BHc |
|||||
kJ/m3 |
MG. Oe |
T |
G |
kA/m |
Oe |
||
Alnico 12/6 |
i |
12 |
1.50 |
0.60 |
6000 |
54 |
680 |
Alnico 14/6 |
a |
14 |
1.80 |
0.71 |
7100 |
54 |
680 |
Alnico 20/5 |
a |
20 |
2.50 |
0.90 |
9000 |
54 |
680 |
Alnico 35/5 |
a |
35 |
4.40 |
1.16 |
11600 |
56 |
700 |
Ticonal 18/9 |
i |
18 |
2.20 |
0.60 |
6000 |
84 |
1050 |
Ticonal 26/10 |
a |
26 |
3.30 |
0.75 |
7500 |
96 |
1200 |
* i = isotropic; a = anisotropic
The figure shows typical demagnetization curves of the magnets presented in the table.
To answer the client's requirements we need the following information:
- A drawing with a shape and dimensions of the magnet, a condition of the surfaces. The cross-section of the magnets can be from
20 to 1000 mm2 and the length from 2 to 40 mm. We recommend the length to be up to 3 times the diameter;
- A type material, according the table and other requirements;
- A direction of magnetization or a configuration of poles;
- Conditions of work of the magnets: a configuration with other magnets or cores, air gaps, demagnetization fields and etc.;
- A condition of magnets: magnetized or demagnetized;
- A quantity.
Receiving this information we can answer about a price, a term of delivery and etc.