China OEM Pf Mold Suppliers – Plastic encapsulated motor – Sino Vision

The plastic encapsulated motor is composed of plastic encapsulated stator, shaft, rotor, bearing, end cover, thermal protector, outgoing line, socket, etc. The stator core of the plastic encapsulated motor is made by splicing two semicircular iron cores into a whole circle. The semi-circular iron core is formed by stamping high-quality cold-rolled silicon steel sheet with cemented carbide progressive die on a high-speed punch, and then stamped and laminated into a semi-circular iron core by fastec or VICS self buckle iron core. After the semicircular iron core is made, two semicircular insulating sheaths are respectively sleeved from both ends of the semicircular iron core, and then wound and spliced to be plastic sealed. During plastic packaging, the stator core and outgoing line embedded with the coil shall be installed into the injection molding metal mold, and then injection molding.
The plastic encapsulated motor uses BMC (DMC) material, which requires excellent performance, good molding processability, fast curing speed and easy demoulding. Thermosetting plastics are cured in the hot state and do not deform or damage when used at high temperature. They are mainly unsaturated polyester resin type and epoxy resin type. Stabilizers, lubricants, film removal agents, dyeing agents, curing and curing accelerants, antiaging agents, antistatic agents and flame retardants are also used.