In the forming process, rubber plastic magnetic injection in the strong working pressure for the concentration value of the mold shell cavity to carry out a full fill, coupled with raw materials with thermosetting binder, so that the magnet has been better physical chemistry and physical properties. Due to the high composition of polymer binder in injection magnet, the magnet itself has strong corrosion resistance, and generally does not need to carry out surface coating maintenance.

With its own unique advantages, neodymium ferroboron is often used in: small output power brushless DC motor magneto stator, brushless dc motor and servo motor multipole magneto rotor, magnetic drive system, vehicles and its industrial sensors and other equipment.

Injection of plastic magnetic generally choose dacron 6, dacron 12 and PPS these thermosetting binder. For all practical applications, the choice of binder is based on a variety of factors, including temperature characteristics, compressive strength, water absorption, water resistance, magnetic appearance complexity and compatibility with magnetic particle flaw detection. Temperature characteristics: the application temperature of injection magnet depends on its selection of magnetic particle flaw detection and binder.

For example, ferrite cores in powder form with dacron 6 or PPS can be tested at 180℃. However, dacron 12 melts at about 170℃, so if the application temperature of the magnet design exceeds 150℃, dacron 12 is not recommended. Take ndfeb magnet magnetic powder defect detection with high magnetic energy product as an example. If the intrinsic magnetic energy product is 9500 OS (760kA/m), no matter what kind of binder is used, the magnetic properties of raw materials will be obviously irreversible damage in case of exceeding 120℃.

Specification precision: because the injection molding products in specification and injection mold shell concave mold is consistent, so the precision of the product specification can be controlled very high relativity.