What factors affect the stability of bonded ferrite tiles in fan motors?

Guys, today let‘s talk about the stability of the bonded ferrite tile in the fan motor.

First of all, the binder is key! Different types of binders have very different properties, such as epoxy resin binders and rubber binders, one is strong but may age at high temperatures, and one is elastic but may not have enough bonding strength. And the quality of the binder is not good, there are impurities, or the curing process does not grasp the temperature time, will affect the stability of the magnetic tile.

The characteristics of the magnetic tile itself are also extremely important. Dimensional accuracy and shape tolerance must pass, otherwise it is easy to have problems if it is not installed well. If the mechanical strength is not enough, it is easy to damage or break. Inconsistent magnetic properties are more troublesome, which will make the motor magnetic field uneven and affect stability.

The working environment of the motor cannot be ignored. Large temperature change, magnetic tile and binder thermal expansion coefficient is different will produce thermal stress; High humidity environment will reduce the water absorption of the binder and possibly corrosion; Vibration and shock can also make the magnetic tile loose and shift or even fall off.

Motor structure and assembly are also particular. The internal structure design is unreasonable, the magnetic tile is not supported or the magnetic circuit is not good; The assembly process and accuracy are not good, the installation is crooked or the pressure is wrong, will affect the bonding effect.

In short, these factors will affect the stability of the bonded ferrite magnetic tile in the fan motor, do you understand?