Injection molded magnets consist of nylon with magnetic powder and are produced by injection molding with a special injection molding machine. Injection molding has unique and irreplaceable advantages over other process methods of making permanent magnets.
Why use injection molding? What are the unique advantages of injection molding?
Injection molding can produce magnets with complex shapes. In addition, the injection molding process can be used: embedded molding, multi-step molding, multi-workpiece molding, and the way to combine magnets with other parts in one, thus saving the cost of secondary processing and assembly injection molding technology can produce both isotropic magnets and anisotropic magnets. Anisotropic magnets require an applied orientation touch field during molding, so that the magnetic powder in the molten state of the polymer has a certain orientation, i.e., orientation, and can achieve multipolar touch. The injection molding process results in a product with good consistency in size and performance. During the molding process, the material is completely filled with the highest concentration of the mold type under strong injection pressure, and the material contains thermoplastic binder, so that the magnets obtain good physical and mechanical properties: due to the high content of polymer binder in the injection molded magnets, the magnets themselves have strong corrosion resistance and usually do not need surface coating protection.
Dimensional accuracy: Since the injection molded product is dimensionally consistent with the injection mold cavity, the dimensional accuracy of the product can be controlled relatively high. In addition, the shrinkage of the binder in the material during cooling can cause changes in the dimensions of the product, the extent of which depends on the thickness and shape of the product. Typical dimensional tolerance is: +0.05mm.
Ps: injection molding magnetic has another feature: can be durable consumer products 20 ~ 150 degrees without demagnetization! While the motor magnetic strip when the working environment exceeds 80 degrees on the demagnetization is very powerful injection molding magnets are mainly used in automation equipment, brushless DC motor rotor, inverter fan motor rotor, inverter air conditioning motor rotor, DC brushless refrigerator blower motor rotor, energy-saving range hoods, automotive fuel tank magnetic ring, instrumentation, lamps, printers and copiers touch silver, buffer cylinder, water pump motor, water heater accessories, energy-saving induction cooker Pool equipment, pipe fittings, motorcycles, cameras, clocks, audio, all kinds of motor induction devices, household appliances, household floor fans, ceiling fans, extractors, chillers, fans, office automation, transmission, all kinds of toys, magnetic therapy medical health care products and various fields of daily life, etc.
Introduction of the irreplaceable advantages of motor injection magnets
Jun 21, 2023
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