Permanent Ferrite Magnets That Provide High-Temperature Resistance And Stable Performance In Automotive Engine Motors
Our company manufactures an-isotropic ceramic strontium ferrite magnet made by means of wet compression molding.
What is permanent magnet ferrite?
Permanent magnet ferrite is a hexagon structure compound with uniaxial anisotropy, mainly barium, strontium, lead three kinds of ferrite and their composite solid solution, there are the same magnetic and opposite magnetic points, because this kind of ferrite material in the external magnetization field disappeared, still can retain a strong constant remanent magnetic property for a long time, can be used to generate a stable magnetic field on the external space.
How to determine the performance of the product?
There are four main indicators to measure the performance of permanent magnet materials: residual magnetism, coercive force, intrinsic coercive force, and maximum magnetic energy product,The finished permanent magnet ferrite has a high coercivity and is not easy to demagnetize after magnetization.
What are the advantages of the permanent magnet ferrite we produce?
1,Stable magnetic properties: permanent magnet ferrite has high coercivity and remanence, stable magnetic properties, and is not easily affected by external influences.
2,High temperature resistance: permanent magnet ferrite has good high temperature resistance and is suitable for use in high temperature environment.
3,High temperature coefficient of resistance to saturated magnetic field: The magnetic properties of permanent magnet ferrite decay slowly at high temperatures, with a high temperature coefficient of resistance to saturated magnetic field.
4,Low cost: The raw material price of permanent magnet ferrite is low, the production process is simple, and the cost is relatively low.
5,Long service life: permanent magnet ferrite has a long service life, is not easy to demagnetize, low maintenance costs.
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?
Permanent magnet ferrite is a kind of material with high magnetic flux density and good magnetic properties, which is often used as an exciting magnet in motorcycle starting motors. In the motorcycle starting motor, the main role of permanent magnet ferrite is to generate a magnetic field, which is used to excite the rotor in the motor, so that the motor can effectively generate rotating force and help the motorcycle start.
The advantage of permanent magnet ferrite is that it has a high magnetic flux density and low magnetic flux loss, which can generate enough magnetic field strength in a relatively small volume, so as to meet the requirements of the motorcycle starting motor for the compact design. At the same time, the magnet made of permanent magnet ferrite also has good stability and durability, and can provide the required magnetic field stably for a long time.
In general, permanent magnet ferrite plays a key role in the motorcycle starting motor, which can effectively improve the performance and efficiency of the motor, so that the motorcycle can start quickly and reliably.
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.
FERRITE POWDER GRADE OF MOTORCYCLE MOTORS MAGNET
|
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 |
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Permanent Ferrite Magnets That Provide High-Temperature Resistance And Stable Performance In Automotive Engine Motors Images
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