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Brand Name : XINHENG
Model Number : W5158
Certification : IATF16949,ISO9001
Place of Origin : Sichuan, China
MOQ : 100K
Price : Negotiation
Payment Terms : T/T, L/C, D/P, T/T, Western Union, MoneyGram
Supply Ability : 10000 ton per year
Delivery Time : 10-15days
Packaging Details : Carton+pallet
Product name : Household Appliances Ferrite Magnets
Application : Dishwashers Motor
Shape : Arc,Tile
Type : Anisotropic sintered magnet
Composite : Ferrite strontium powder
Size : (R48mm-r30mm)×30mm
Processing : Wet Pressed
Package size : 340mm×255mm×75mm
Quantity per carton : 984pcs
Coating : No Coating
Permanent Magnet Ferrite Tiles Used In Large Commercial Refrigerator Motors
Permanent magnet ferrite (also known as ferrite magnet) is mainly used in the following aspects in commercial refrigerators:
Seal strip function: Permanent magnet ferrite can be used in the seal strip of the refrigerator door to enhance the sealing performance of the door. This magnetic seal can effectively prevent the leakage of cold air, improve the energy efficiency of the refrigerator, while preventing the entry of hot air from the outside, thus keeping the internal temperature stable.
Drive motor: Some commercial refrigerators may use permanent magnet ferrite as the core material for the motor or fan. Due to its excellent magnetic properties, the efficiency and performance of the motor can be improved.
Applications of sensors: In some refrigerators, permanent magnet ferrite can be used in magnetic sensors such as Hall sensors to monitor the opening and closing status of the refrigerator door or temperature changes, so as to achieve intelligent control and energy saving.
Structural components: The corrosion and high temperature resistance of permanent magnet ferrite makes it possible to use it in some structural components of refrigerators, especially in environments where durability and stability are required.
What's the feature of ceramic strontium ferrite magnet made by wet compression molding?
Composition - Contain strontium ferrite (SrFe12O19) as the primary magnetic material. Strontium ferrite has good magnetic properties and is inexpensive to produce.
Density - Have a high relative density of around 95% or more after sintering. This gives good mechanical strength.
An-isotropy - Exhibit strong magnetocrystalline an-isotropy due to their hexagonal crystal structure. This results in a preferred direction of magnetization along one axis.
Particle shape - The strontium ferrite powder used typically has a hexagonal platelet morphology which helps promote magnetic an-isotropy during molding and sintering.
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.
Firing process - The compact is then sintered at high temperature to develop density while preserving the induced magnetic anisotropy orientation from molding.
Remanence - Have a maximum magnetic flux density or remanence along the axis of anisotropy, but little/no remanence perpendicular to it.
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?
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 UNIVERSAL 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 | |
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 |
Y35 | 430-450 | 4300-4500 | 215-239 | 2700-3000 | 217-241 | 2730-3030 | 33.1-38.2 | 4.1-4.8 |
To know more about Xinheng Permanent Ferrite Magnet
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No Coating Permanent Magnet Ferrite Tiles for Dishwashers Motor in Large Commercial Refrigerator Images |