Sichuan Xinheng Magnetic Materials Co., Ltd
SICHUAN XINHENG MAGNETIC MATERIALS CO., LTD
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Super Strong Permanent Magnet Ferrite Ring For Automobile Steering Motor
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?
High magnetic performance: These magnets have high coercivity and remanence, making them suitable for high-performance applications.
Complex shapes: Wet compression molding allows for the production of magnets in complex shapes, which can be difficult to achieve with other manufacturing methods.
Excellent dimensional control: The process allows for precise control over the dimensions and tolerances of the magnets, ensuring consistent performance.
Cost-effective manufacturing: Wet compression molding is a cost-effective method for producing large quantities of ceramic strontium ferrite magnets.
Environmental benefits: The process produces minimal waste and can be done with water-based materials, making it more environmentally friendly than other manufacturing methods.
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.
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.
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 |
What's the application of Xinheng's permanent ferrite magnets?
Xinheng mainly manufactures the following types of ceramic arc segment magnets:
How Xinheng fabricates its permanent strontium ferrite magnet?
FERRITE POWDER GRADE OF FAN 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 | |
| Y30H-1 | 380-400 | 3800-4000 | 230-275 | 2890-3460 | 235-290 | 2950-3640 | 27.0-32.5 | 3.4-4.1 |
| 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 |
| Y35 | 430-450 | 4300-4500 | 215-239 | 2700-3000 | 217-241 | 2730-3030 | 33.1-38.2 | 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 |
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 |
The role of permanent magnet ferrite in automobile steering motor:
Permanent magnet ferrite plays an important role in automobile steering motor. It is mainly used to generate a magnetic field, so that the motor can achieve the steering function. Permanent magnet ferrite has good magnetic properties and stable magnetic characteristics, which can provide a stable magnetic field and make the motor work more reliable and efficient. Therefore, permanent magnet ferrite can help achieve accurate steering control in the automobile steering motor and improve the driving stability and safety of the automobile.
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