High Temperture Resistance Block Alnico Magnets
General Description:
1, Alnico magnet material is made by alloying aluminum, nickel and cobalt with iron.
2, Some grades also contain copper and/or titanium. The alloying process is casting or sintering.
3, These constituents, the process and the heat treatment needed to optimize magnetic properties produces hard (Rc45) and brittle parts that are best shaped or finished by abrasive grinding.
4, Sintered Alnico magnet, which are also alumium-nickel-cobalt iron alloys, is usually restricted to smaller sizes. it has slightly lower magnetic properties, but better mechanical strength than cast alnico magnet.
5, Sintered Alnico magnet is widely used in all kinds of sensors, meters, controller speedometer and other applications.
6, Sintered alnico magnets have slightly lower magnetic properties, however they have excellent mechanical properties.
7, Alnico magnets are excellent choices for applications involving vibration and shock as they have good resistance to demagnetization.
Application:
1.Inner magnetic voltmeter/ammeter, electronic type power energy measuring instrument, avometer, flow meter
2.A wide 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 magnet motor, absorptive appliance
5.Widely applied in high stability fields, such as aviation, spaceflight and military technology.
Cast Alnico Materials - Physical and Mechanical Properties (Nominal values)
Materials | Density g/cm3 | Hardness Rockwell C | Curie Point oC | Coefficient of thermal expansion per oC x 10 | Electrical Resistivity at 25 oC M.CM | Specific Heat Cal/gmoC |
Alni | 6.9 | 51 | 760 | 12 | 65 | 0.11 |
Coalni | 7.0 | 52 | 700 | 12 | 62 | 0.11 |
Alnico II | 7.2 | 53 | 810 | 12 | 60 | 0.11 |
CoalnimaxSpl. | 7.3 | 50 | 860 | 11.4 | 55 | 0.11 |
Coercimax | 7.35 | 50 | 870 | 11.3 | 50 | 0.11 |
CoercimaxSpl. | 7.35 | 50 | 870 | 11.3 | 50 | 0.11 |
About our company business scopes:
We supply hard magnets and magnetic materials from China. Our magnets include ferrite magnets, flexible magnets, NdFeB magnets, alnico magnets, SmCo magnets, rubber magnets, refrigerator fridge magnets, magnetic powder, magnetic compound tesla meters & magnetizers, and magnetic jewelry. We also supply ferrite cores, MnZn cores and NiZn cores for transformers and coils, loudspeaker magnets, motor magnets, and refrigerator gasket stripes.
Our company websites:
1. e-magnet.cn 2. magnets.com.cn 3. http://www.fecrco.cn/index.htm
4.find-magnet.com 5.x-magnet.net 6. magnet-tech.com