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| Alnico magnets |
| HOME >> Products >> Alnico magnets |
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| Product Description |
The Alnico (Aluminum, Nickel, Cobalt) family was introduced in the 1930's. It's characterized by excellent temperature stability, high residual induction, relatively high energies and resistant to corrosion. These were the first materials specifically designed for permanent magnets to be used in meters and instruments commercially.
Alnico is vailable in both cast and sintered forms. Sintered Alnico offer slightly lower Magnetic properties but better mechanical characteristics than cast Alnico. These materials are brittle, hard and cannot effectively be machined by conventional techniques other than by grinding. disc magnet |
HS Code: |
85051110 |
Model: |
TC |
Origin: |
China |
Packing: |
Carton |
Transportation: |
By Express/Air/Sea |
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The Alnico material (composed predominantly of aluminum, nickel, and cobalt with minor amounts of other elements including titanium and copper) is manufactured through either a Casting or Sintering process. Compared to modern materials alnico has a low coercivity. The main advantage of alnico is the very low temperature coefficient and the wide temperature range from -273 Celsius to more than +400 Celsius for practical use. disc magnets |
•Product Name:
Isotropy AlNiCo Bonded Magnet
•Model Number:
TC-AlNiCo-Bonded
•Description:
Characteristics:
Good temp. Stability (temp. coefficient of Br is about ?C0.02%/K) bonded alnico magnet, bonded alnico magnets
Excellent magnetic evenness and stability
Strong anti-demagnetization |
Application:
Due to the characteristics of above mentioned. It is widely used as magnetic driven bearing of power energy measuring instrument.
High stability magnetic sensor
Automatic control surveying instrument bonded alnico magnet, bonded alnico magnets |
Magnetic properties and physical features of isotropic AlNiCo bonded magnets |
Property Grade |
Residual Flux Density Br. |
Coercive Force Hcb |
Intrinsic Coercive force Hcj |
Max. energy product (BH)max |
Relative Recoil Permeability ¼rec |
Density d |
Temp. Coefficient ± (Br) |
Curie Temp. Tc |
Recommended Magnetization Field |
KGs (mT) |
Oe (KA/m) |
Oe (KA/m) |
MGOe (KJ/m 3 ) |
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g/cm 3 |
%/K |
o C |
Koe (KA/m) |
AINiCo7/8 |
3.4 (340) |
900 (72) |
1050 (84) |
0.88 (7.0) |
3.0 |
5.6 |
-0.02 |
850 |
3.0 (240) |
AINiCo8/10 |
3.5 (350) |
1000 (80) |
1200 (96) |
1.00 (8.0) |
3.0 |
5.8 |
-0.02 |
850 |
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CHARACTERS
1) Compact crystal, high intensity, good chemistry Stability, strong anti-corrosion.
2) Even elements, excellent and stable magnetic performance;
3) Excellent temperature stability (temp. coefficient of Br is the smallest among all of the other permanent magnets.)
4) Highest usage temperature reach 500 Celsius
5) Suitable for small volume and complex shape and magnet assemble for sintered Alnico.
APPLICATION
1) Inner magnetic voltmeter/ammeter, electronic type power energy measuring instrument, avometer, flow meter;
2) Amide range of magnetic sensor, polarized relay, temperature and pressure controller;
3) Buzzer of Mobile phone, hearing aids, mini speaker;
4) Lighter of automobile, odometer of automobile and motorcycle, permanent motor, adsorptive appliance;
Widely applied in high stability fields as aviation, space flight, and military technology. disc magnet |
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Advantages:
AlNiCo magnets are very good in temperature properties , its temperature coefficient is very low, so the change of magnetic properties is low under high temperature. The maximum
working temperature can be as high as 550 º C .
AlNiCo magnets have good corrosion resistance characteristic . No coating is needed for
surface protection.
disadvantages:
The coercive force of AlNiCo magnets is very low , so it can be easily effected by reverse
magnetic force, impact or touched by iron. This means that they can be easily demagnetized
by external influences. thus , AlNiCo magnets should not be stored and packed with the same
poles opposing each other. open circuit, the ration of length/diameter (L/D) should be at least
4: 1. With shorter length, AlNiCo magnets are unstable in open circuit.
applications:
The Alnico (Aluminum, Nickel, Cobalt) family was introduced in the 1930"s. It"s characterized by
excellent temperature stability, high residual induction, relatively high energies and resistant to
corrosion. These were the first materials specifically designed for permanent magnets to be used
in meters and instrume nts commercially. Tt can be widely used motor,sensor,separator,
Loudspeaker and holding system etc.... |
If you are interested in our Ferrite magnets,please Show the following magnets detail for us to quote you prices:
1.Magnet size and Dimension ,if special shape ,please offer Magnets drawing. aas
2.Magnetism grade
3.Order Quantities
4.Delivery method
By sea or by air or by air express door to door ,also show your destination port. |
Our factory produce and manufacture magnets according to customer's design on shape, dimension, grades, coatings etc. |
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| Contact us |
Ningbo Tongchuang Strong Magnet Material Co., Ltd
Add: Xinzhuang Gaoqiao Yinzhou District,Ningbo City,China
TEL: 86-574- 88170908, 88089786
Fax: 86-574- 88170906, 88089789
E-mail: sales@ndmagnets.com (General Inquiry)
MSN ID: tcmagnet@hotmail.com (On line Chatting) |
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