Sichuan Xinheng Magnetic Materials Co., Ltd
SICHUAN XINHENG MAGNETIC MATERIALS CO., LTD
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Permanent Magnet Ferrite For Small Household Fans Floor Mounted Fans W031A
Introduction Of Fan Motor:
The fan motor is connected to an electrical power source, typically through a power cord. When the power is supplied to the motor, an electromagnetic field is generated within the motor.
The motor consists of two main components: the stator and the rotor. The stator is a stationary part of the motor and contains a set of electromagnetic coils. The rotor, on the other hand, is the rotating part of the motor and is attached to the fan blades.
What's the key advantages of ceramic strontium ferrite magnets made by wet compression molding?
Low cost - Strontium ferrite is inexpensive and the wet molding process is relatively simple. This makes them cheaper than rare-earth magnets.
Dimensional consistency - The compression molding process allows for close dimensional tolerances and uniform magnet shapes to be produced consistently.
Temperature stability - Strontium ferrite magnets have high Curie temperatures, typically around 450-470°C. They maintain good magnetic properties over a wide operating temperature range.
Resistance to corrosion - Being fully dense ceramic materials, they are not prone to corrosion like bonded magnets containing additives.
Mass production capability - The molding process is amenable to automated high-volume manufacturing of complex magnet geometries.
PHYSICAL PROPERTIES OF SINTERED FERRITE MAGNETS
| Units | Sintered Ferrite (Ceramic) | |
| Curie Temperature | ºC | 450 |
| Maximum Operating Temperature | ºC | 350 |
| Hardness | Hv | >530 |
| Density | g/cm3 | 4.8 – 5.0 |
| Relative recoil permeability | μrec | 1.05-1.1 |
| Temperature Coefficient Br | %/ºC | -0.18 |
| Temperature Coefficient iHc | %/ºC | 0.11-0.40 |
| Anti-Bending Strength | N/m2 | (0.5-0.9)×108 |
| Anti-Compressive Strength | N/m2 | ≥6.9×108 |
| Anti-Tensile Strength | N/m2 | (0.2-0.5)×108 |
| Specific Heat | J/kg·K | 600-900 |
| Resistivity | Q.cm | >104 |
Xinheng mainly manufactures the following types of ceramic arc segment magnets:
How Xinheng fabricates its permanent strontium ferrite magnet?
FAN MOTORS MAGNET SPECIFICATION TABLE
|
No. |
Item |
R |
r |
W |
L |
h |
Grade |
Application |
| 1 | W071 | 75 | 67.0 | 28.9 | 20.0 | 8.0 | Y30H-1 | Ceiling fan |
| 2 | W071A | 75 | 67.0 | 28.9 | 20.0 | 8.0 | Y33 | Ceiling fan |
| 3 | W077 | 87.5 | 79.5 | 65.8 | 19.5 | 7.9 | Y30H-1 | Ceiling fan |
| 4 | W089 | 76.2 | 76.2 | 44.0 | 25.0 | 10.0 | Y30H-1 | Ceiling fan |
| 5 | W101 | 87.5 | 79.5 | 37.0 | 19.5 | 8.0 | Y30H-1 | Ceiling fan |
| 6 | W102 | 56.75 | 48.25 | 38.0 | 25.0 | 8.5 | Y30H-1 | Ceiling fan |
| 7 | W112 | 87.5 | 79.5 | 35.0 | 20.0 | 8.0 | Y30H-1 | Ceiling fan |
| 8 | W130 | 87.5 | 79.5 | 30.5 | 20.0 | 8.0 | Y30H-1 | Ceiling fan |
| 9 | W3130B | 87.5 | 79.5 | 30.5 | 20.0 | 8.0 | Y33 | Ceiling fan |
| 10 | W115 | 29.5 | 21.5 | 14.5 | 38.0 | 8.6 | Y33H-2 | Floor fan |
| 11 | W4187 | 17.05 | 25.4 | 21.26 | 34.0 | 5.9 | Y33H-2 | Floor fan |
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