Fine Grinding Processing To Meet Different Requirements Of Ferrite For Inverter Motors W163
What does Xinheng offer to customers?
Our company manufactures an-isotropic ceramic strontium ferrite magnet 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.
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 strontium ferrite magnet?
FERRITE POWDER GRADE OF INVERTER 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 | |
INVERTER 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 Inverter Motor:
An inverter motor, also known as a variable frequency drive (VFD) motor, operates based on the principles of variable frequency control and motor speed regulation. It is commonly used in various applications where precise speed control and energy efficiency are required.
Power Conversion: Inverter motors utilize power electronics and control circuits to convert the incoming AC power into DC power. The DC power is then inverted back into AC power at the desired frequency and voltage levels. This conversion process allows for the generation of variable-frequency power that drives the motor.
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