Injection Molded Ferrite Magnets For Sensors

Injection Molded Ferrite Magnets for Sensors

Injection Molded Ferrite Magnets for Sensors, Diametrical 2poles Injection Molding Ferrite Rotor Magnets, Insert or Over Molded Plastic Ceramic Magnets, multipoles ferrite injection plastic magnet assembly, Rotor ferrite injection molded magnet.

Parameter
Material: Plastic Binders and Ferrite Powder
Method: Injection Mold
Magnetization:outer 2poles
Application:sensor motor
Flux Force:1300GS≤per pole ≥1600GS
Tolerance: ±0.1 mm
Maximum Operation Temperature: 180 °C
Delivery Time: 15-30 days
Made in China

Polymer bonded magnets are a significant advancement in magnetic materials. This has opened up a whole new world of application possibilities. The processing temperatures used to blend and mold the material mixture are low enough that many different magnet powders can be used alone or in combination in the polymer binder to achieve a previously unheard-of range of properties.

Tolerance

The fact that injection molded magnets conform dimensionally to the precisely machined mold cavity results in close tolerances in the finished product. The shrinkage of the polymer during cooling causes the minimal dimensional variability. This is determined by the thickness and shape of the part. Tolerances are typically +/-0.05mm.

Temperature Characteristics
The maximum use temperature is determined by both the magnetic alloy powder and the binder. Ferrite powders in nylon 6 or PPS, for example, have passed tests at 150°C and 180°C, respectively. Nylon 12, on the other hand, melts above 170°C and is not recommended for use above 150°C. Magnetic material, such as the highest energy NdFeB grade, which has an intrinsic coercivity of 760 kA/m, suffers significant irreversible magnetic loss above 120°C, regardless of binder used. The maximum use temperatures are listed on the specification sheet for each product.