Permanent Ferrite Magnets That Provide Power In Small Household Sweeping Robots
Permanent ferrite magnets are applied in sweeping robots:
These motors typically adopt a multi-pole ring-shaped magnet design, such as injection-molded ferrite rings with 8-pole, 16-pole, 24-pole or 32-pole magnetization in the axial direction. This design can provide a stable magnetic field for the motor, thereby achieving efficient and stable power output and ensuring that the sweeping robot can maintain good motion performance on various terrains.
In the navigation system of the sweeping robot, permanent ferrite materials also play an important role. Hall induction magnetic rings are a common application form. They are installed on the walking wheels of sweeping robots to sense changes in the magnetic field, thereby achieving real-time monitoring of the robot's position and motion state
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.
6,Good rare earth substitution: permanent magnet ferrite can replace some rare earth magnets, reduce the dependence on rare earth and reduce the consumption of rare earth resources.
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.
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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Wet Pressing Permanent Ferrite Magnets The Ultimate Solution for Small Household Sweeping Robots Images
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