N50 Gray Epoxy Plated Ring-Shaped Magnet Neo, NdFeB Ring Annular Magnet, Sintered Neodymium-Iron-Boron Permanent Ring Rare Earth Magnets, circinate ringed Epoxy Coated Super Strong Superior Armillary Magnets China Supplier N50 Gray Epoxy Plated Ring-Shaped Magnet Neo Specifications Dimension: Custom size Magnetised: radial direction Grade: N50 Coating: Epoxy (Gray Epoxy) Maximum Temp: 80°C WARNINGS: All neodymium […]
Ring Ferrite Multipolar Injection Molded Magnet, 32-polars Injection Moulding Ferrite Magnet for Sensor, customized Bonded Multi-pole injection Plastic ferrite NdFeB motor Magnet, Multipolar Bonded Ceramic Magnets
Ring Ferrite Multipolar Injection Molded Magnet Basic Info:
Ferrite, also known as Ceramic Magnets, are made of a composite of Iron oxide and barium carbonate (BaCO3) or strontium carbonate (SrCO3). Since th 1950’s, this material is commonly available and at a lower cost than other types of materials used in permanent magnets. Ceramic magnets are made by pressing and sintering. Sintered magnets are a type of ceramic composed of the compressed powder of the alloy material being used. Sintering involves the compaction of fine alloy powder in a dry and then fusing the powder into a solid material with heat. While the sintered magnets are solid, their physical properties are more similar to a ceramic and are easily broken and chipped.
Ferrite magnets are brittle and hard , which generally requires diamond wheels to grind and shape. These magnets come in a number of different grades. Ferrite Multipolar Ring Magnets
Injection molded magnets are produced by injecting the special pellets into the mold. This kind of magnet covers a wide range of characteristics as bonded magnets, including heat resistance and higher magnetic properties. Injection molding technique offers flexible shape design as well as over-molding and insert-molding with other parts for easy assemblies. Bonded Injection Moulding Ferrite Magnet for Sensor
The advantage of injection molded magnets
For this kind of isotropic magnets, any magnetization direction can be applied. This is a congenital advantage to manufacture the multi-polar magnets. Sensor Bonded Multipolar Ferrite Magnets
Injection molded magnets have excellent dimensional accuracy and serial productivity.
Thin wall thickness and complex shape can be manufactured.
Over-molding and insert-molding with other parts, like back yoke, hub, shaft is readily available, as well as injection other polymer parts can be incorporated.
The polyer binders’s volume fraction of injection molded magnets higher than the compression molded magnets. It will provide adequate protection against corrosion without coating in most applications.