High performance permanent magnet ferrite used in motorcycle motors W050A
What does Xinheng offer to customers?
Our company manufactures an-isotropic sintered ferrite magnets made by means of wet compression molding.
What's the feature of ceramic strontium ferrite magnet made by wet compression molding?
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Composition - Contain strontium ferrite (SrFe12O19) as the primary magnetic material. Strontium ferrite has good magnetic properties and is inexpensive to produce.
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Density - Have a high relative density of around 95% or more after sintering. This gives good mechanical strength.
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An-isotropy - Exhibit strong magnetocrystalline an-isotropy due to their hexagonal crystal structure. This results in a preferred direction of magnetization along one axis.
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Particle shape - The strontium ferrite powder used typically has a hexagonal platelet morphology which helps promote magnetic an-isotropy during molding and sintering.
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Molding method - The powder is mixed with a liquid binder and compression molded into a dense green compact using high pressures. This orients the an-isotropic particles.
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Firing process - The compact is then sintered at high temperature to develop density while preserving the induced magnetic anisotropy orientation from molding.
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Remanence - Have a maximum magnetic flux density or remanence along the axis of anisotropy, but little/no remanence perpendicular to it.
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Coercivity - Usually have medium to high coercivity depending on additives, density, and anisotropy level achieved.
What's the key advantages of ceramic strontium ferrite magnets made by wet compression molding?
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Low cost - Strontium ferrite is inexpensive and the wet molding process is relatively simple. This makes them cheaper than rare-earth magnets.
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High magnetic property-Even without heavy rare earth element additions, strontium ferrite magnets can achieve coercivities of 700-1000 kA/m, making them suitable for many applications.
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Dimensional consistency - The compression molding process allows for close dimensional tolerances and uniform magnet shapes to be produced consistently.
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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.
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Resistance to corrosion - Being fully dense ceramic materials, they are not prone to corrosion like bonded magnets containing additives.
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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 |
What's the application of Xinheng's permanent ferrite magnets?
Xinheng mainly manufactures the following types of ceramic arc segment magnets:
- Automotive motor magnet including automobile starter motor magnet, automobile wiper motor magnet, automobile rolling window motor magnet, automobile heating and cooling fan motor magnet, automobile seat motor magnet, automobile sunroof motor magnet, automobile powsteering motor magnet, automobile tailgate motor magnet, automobile oil pump motor magnet, automobile ABS anti-lock motor magnet, etc.
- Inverter home appliance magnet including inverter washing machine motor magnet, inverter refrigerator motor magnet, inverter air-conditioner motor magnet,etc.
- Fan motor magnet including ceiling fan motor magnet, floor fan magnet, etc.
- Motorcycle motor magnet including motorcycle starter motor magnet, motorcycle flywheel magneto magnet, etc.
- Electrical tool motor magnet including cutting machine motor magnet, electric sawing machine motor magnet, lawn mower motor magnet, gasoline generator magnet, etc.
- Actuator motor magnet including medical bed actuator motor magnet, TV lifting bracket actuator motor magnet, desk lifting actuator motor magnet, smart home appliance actuator motor magnet, etc.
How Xinheng fabricates its permanent Sintered Ferrite Magnet?
FERRITE POWDER GRADE OF MOTORCYCLE MOTORS MAGNET
|
牌号
Grade
|
Br(mT) |
Hcb(KA/m) |
Hcj(KA/m) |
(BH)max(KJ/m3) |
| mT |
Gs |
KA/m |
Oe |
KA/m |
Oe |
KJ/m3 |
MGOe |
| Y33 |
410-430 |
4100-4300 |
220-250 |
2760-3140 |
225-255 |
2830-3200 |
31.5-35.0 |
3.9-4.4 |
| Y33H |
410-430 |
4100-4300 |
250-270 |
3140-3390 |
250-275 |
3140-3450 |
31.5-35.0 |
3.9-4.4 |
| Y33H-2 |
410-430 |
4100-4300 |
285-315 |
3580-3960 |
305-335 |
3830-4200 |
31.8-35.0 |
4.0-4.4 |
| Y34 |
420-440 |
4200-4400 |
200-230 |
2510-2890 |
205-235 |
2570-2950 |
32.5-36.0 |
4.1-4.4 |
| Y35 |
430-450 |
4300-4500 |
215-239 |
2700-3000 |
217-241 |
2730-3030 |
33.1-38.2 |
4.1-4.8 |
| Y36 |
430-450 |
4300-4500 |
247-271 |
3100-3400 |
250-274 |
3140-3440 |
35.1-38.3 |
4.1-4.8 |
| Y38 |
440-460 |
4400-4600 |
285-305 |
3580-3830 |
294-310 |
3690-3890 |
36.6-40.6 |
4.6-4.8 |
| Y40 |
440-460 |
4400-4600 |
330-354 |
4150-4450 |
340-360 |
4270-4520 |
37.6-41.8 |
4.7-5.2 |
MOTORCYCLE MOTORS MAGNET SPECIFICATION TABLE
|
No.
|
Item
|
R
|
r
|
W
|
L
|
h
|
Grade
|
Application
|
| 1 |
W118 |
68.1 |
60.7 |
25 |
25 |
7.50 |
Y33H |
1KW inverter motor |
| 2 |
W018F |
72.5 |
60.7 |
27.9 |
35 |
11.80 |
Y40 |
2KW inverter motor |
| 3 |
W005A |
72.5 |
60.5 |
29.5 |
42 |
11.80 |
Y33H |
2.3KW inverter motor |
| 4 |
W050E |
87.3 |
78.5 |
24 |
40 |
8.80 |
Y33H |
2.6KW inverter motor |
| 5 |
W159 |
74.1 |
65.5 |
28.86 |
47 |
8.60 |
Y40 |
2.8KW inverter motor |
| 6 |
W017F |
86.5 |
78.5 |
24.0 |
51 |
7.90 |
Y33H-2 |
3KW inverter motor |
| 7 |
W087 |
86.5 |
78.5 |
24.0 |
64 |
7.80 |
Y33H-2 |
5KW inverter motor |
| 8 |
W138C |
101 |
90.2 |
24.5 |
65 |
10.8 |
Y40 |
7KW inverter motor |
| 9 |
W019B |
112 |
100 |
28.5 |
60 |
11.90 |
Y40 |
9KW inverter motor |
Introduction Of Motorcycle Motor:
The motor principle of a motorcycle is derived from the working principle of an electric vehicle. Motorcycles usually use DC motors or AC brushless motors as power units. These motors convert electrical energy into mechanical energy, which drives the motorcycle forward.
The motor consists of two parts: a stator and a rotor. The stator is the stationary part that contains electromagnetic coils that generate a magnetic field. The rotor, on the other hand, contains permanent magnets, or sensors, which are rotated by the magnetic force generated by the stator.
When the motor receives electrical energy, the current flows through the stator's electromagnetic coil, creating a magnetic field. This field interacts with a permanent magnet or sensor on the rotor, creating a torque that causes the rotor to start turning. When the rotor starts to turn, it drives the wheels of the motorcycle forward.
The speed and torque of the motor depend on the input current and voltage. By controlling the size and direction of the current and voltage, the speed and output power of the motor can be controlled to achieve acceleration, deceleration and other power control functions.
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