1.Products manufactured according to ISO9001 quality system.
2.The magnetic properties are very stable in chance of the temperature(-0.02%/°C for Br)
3.The max operation temperature is 550 degree centigrade.It is ideal for thehigh temperature applications.
4.The magnet has good corrosion resistance.
5.High mechanical strength
6.Various shapes and sizes or according to customers' request
7.High quality with competitive prices.
8.Used in different applications,such as speaker,mobileodometer,eletricitymeter,watermeter,eletricity motor switch adhesion sensors andso on.
product name: Alnico Magnets
Alnicos are precipitation-hardened alloys requiring special heat treatment techniques. The raw materials are Cobalt, Nickel, Copper, Aluminum and Iron. Titanium, silicon, etc. are added in certain proportions. The raw materials in their purest form are melted in medium frequency induction furnaces and castings are made using conventional sand or shell moulds. The heat treatment consists of heating the alloy in furnace to well above its curie point, and holding it at that temperature for some time. This is followed by controlled cooling after which the castings are reheated and held for a long period at a temperature of about 600°C. This ageing process increases the coercive force and the energy product. Finally, the castings are ground to obtain close dimensional tolerances whenever necessary and inspected for physical and magnetic accuracy.
product name: Alnico Magnets
Alnicos are precipitation-hardened alloys requiring special heat treatment techniques. The raw materials are Cobalt, Nickel, Copper, Aluminum and Iron. Titanium, silicon, etc. are added in certain proportions. The raw materials in their purest form are melted in medium frequency induction furnaces and castings are made using conventional sand or shell moulds. The heat treatment consists of heating the alloy in furnace to well above its curie point, and holding it at that temperature for some time. This is followed by controlled cooling after which the castings are reheated and held for a long period at a temperature of about 600°C. This ageing process increases the coercive force and the energy product. Finally, the castings are ground to obtain close dimensional tolerances whenever necessary and inspected for physical and magnetic accuracy.
Magnetic properties
| Grade | Br, T | Hcb, kA/m | (BH)max, kJ/m3 | Tw,oC (max) | Structure of cast material |
| AlNi4Cu | >0.50 | >40 | >7.2 | 450 | isotropic |
| AlNiCo- Iso | 0.55-0.90 | 48-55 | 12.0-19.4 | 450 | isotropic |
| AlNiCo | 1.11-1.25 | 40-52 | 36-44 | 500 | isotropic |
| AlNiCo5Ti | 0.75-0.90 | 92-120 | 28-44 | 550 | isotropic |
| AlNiCoNb-A | 1.25-1.40 | 44-62 | 56-60 | 500 | columnar |
| AlNiCo5TiNb-A | 1.0-1.10 | 110-120 | 72-88 | 550 | columnar |
| AlNiCo5Ti-AA | 1.05-1.10 | 115-120 | 80-88 | 550 | single crystal |
| AlNiCo8Ti-AA | 0.90-0.95 | 145-160 | 64-72 | 550 | single crystal |
Note:
w - maximum working temperature
w - maximum working temperature
Shapes and sizes available (as standard):
Shapes: Blocks, cylinders, disks, rings, segments
Two or more poles
Shapes: Blocks, cylinders, disks, rings, segments
Two or more poles
Note: More complicated shapes and any magnetic configuration can be provided by special order
Standard sizes:
Blocks
| Min, mm | Max, mm | |
| W | 2 | 150 |
| T | 2 | 50 |
| L | 2 | 150 |
Cylinders
| Min, mm | Max, mm | |
| Dia | 5 | 30 |
| L | 10 | 100 |
Disks and Rings
| Min, mm | Max, mm | |
| Dia | 10 | 100 |
| h | 3< | 5/td> |
Segments
| Min, mm | Max, mm | |
| W | 20 | 100 |
| L | 10 | 150 |
| h | 3 | 8 |
Grade: AlNiCo 2, AlNiCo 3, AlNiCo 5, AlNiCo 6, AlNiCo 7, etc.
Short Lead Time: 25-30 days
Key Advantages:
1) Strong Corrosion Resistances
2) Excellent Temperature Stability
3) Fine Grain
4) Compact Crystal
5) Excellent Magnetic Consistence
6) Then maximum working temperature is up to 550 degrees
7) Suitable for small volume and complex shape magnets
Process Flow:Raw Material-----Mixing---Melting-----Heat Treatment-----Magnetic Testing----Grinding-----Inspection-----Packing and Shipping
Applications:
1) Inner magnetic voltmeter/ammeter, measuring instrument, avometer, flow meter.
2) Magnetic sensors, 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
5) Widely applied in high stability field as aviation, space flight and military technologhy
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