Aiming at the problem of long solidification time of adhesive for fixing the magnetic tile of brushless DC motor (BLDCM)

the minimum bonding strength of the adhesive is obtained by analyzing and calculating the stress of the magnetic tile

and the rapid fixing of the magnetic tile is realized by developing and verifying the thermosetting adhesive. The stability of adhesive after complete solidification is verified by high temperature test

low temperature test

high temperature and humidity test

thermal shock test

and high temperature timely test. The results show that the minimum bonding strength of fixed magnetic tile is 5.81 MPa

and the bonding strength of AC451 glue is 15.6 MPa at 60 ℃/20 min

confirming that the complete fixation of magnetic tile is realized. After dynamic balance test

the glue solidifies at room temperature for 5 h

and its bonding strength reaches 22.2 MPa

which meets the requiments of all type tests. It is safe and reliable

and has wide industrial application prospects.