Injection molding magnet is a magnet produced by injection molding machine by mixing magnetic powder, resin (PA6, PA12, PPS, etc.), additive and other materials. The magnetic force of injection molding magnetic field is slightly lower than that of sintered magnetic field, but it has the advantages of precise size, light weight, thin wall, complex shape, and stable magnetic property, which can bond with other metal parts to form. In many electronic products with high precision, lightweight and performance requirements, injection molding magnet can meet its requirements, which is difficult to achieve the condition of sintered magnet. In the molding process of injection molding, if an axial or radial external magnetic field is applied to it, a magnet with higher magnetic properties can be obtained.
Mainly used for high performance micro motor (stepping motor, brushless motor), automobile motor, photocopier, laser printer, magnetron sensor, precision instrument, etc.
The following figure shows the production process of injection molding magnetic process and the flow chart of injection molding magnetic process.
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