China Neodymium And Ferrite Magnets Manufacturer & Supplier 
Injection molded ferrite is a composite magnet that combines ferrite magnetic material and plastic. It can be injection molded integrally with metal and other components, and is also easy to process complex shapes, and is widely used in automotive, electronics, and home appliances. High-quality injection-molded ferrites need to meet stringent requirements in terms of raw materials, manufacturing processes and final performance to ensure their reliability and durability in different scenarios.
For raw materials, high quality ferrite powder high quality polymer substrate is used. The quality of ferrite magnetic material directly affects the magnetic properties of injection molded magnets. High-quality injection molding ferrite should use high-purity, uniform particles of ferrite powder, and the particle size of the magnetic powder should be controlled in a reasonable range to improve the magnetic properties. The magnetic powder composition should minimize impurities, such as calcium, aluminum and other non-magnetic components, to reduce performance loss. The base material is usually nylon, polypropylene and other engineering plastics. Different base materials need to be selected according to the application scenarios, e.g. Nylon 6 or Nylon 12 is preferred for high temperature resistant scenarios.
Below is a sample of some of Courage injection molded ferrite magnets, It belongs to multipolar ring ferrite magnets.
In terms of manufacturing process, it is necessary to use efficient mixing equipment to fully mix the magnetic powder with the substrate to avoid the problem of uneven magnetic properties. The mold design needs to be precise to ensure the shape accuracy and size consistency of the product. Temperature and pressure control needs to be precise to avoid material decomposition or powder settling.
The final performance requires excellent magnetic properties, good mechanical properties, excellent environmental adaptability, high dimensional accuracy and stability.
The final step is testing, which requires the use of a Hall effect meter or a vibrating sample magnetometer (VSM) to test the remanent magnetism and coercivity. Tensile strength and elongation at break are tested by tensile testing machine, and simulated environment tests such as high temperature, high humidity and salt spray are conducted to verify the weather resistance. Inspection of injection molded ferrite magnet size and appearance by QC.
The production of high quality injection molded ferrite requires strict control from raw materials, manufacturing process and performance testing. Only by meeting the requirements of magnetic properties, mechanical properties and environmental adaptability can we ensure its reliability and stability in practical applications.
Inquire about more injection molded ferrites;
8 pole radial injection molded ferrite rotor magnet 50x8x22.3mm
Radial 2 pole injection molded ferrite ring D14 x 4.8 x 7 mm
Injection molded magnetic ring with small hole 9.5mm x 1mm x 2mm
Helpful articles for you;
Difference Between Injection Molding Magnet No.6 12 Powder
Advantages and disadvantages of injection molded ferrite magnets
Main differences between injection molded magnets and sintered magnets