It's more intuitive to look at the appearance. First, check whether there are garbage, cracks, foreign objects, etc. if you find these situations, promise me not to cooperate with that iron core manufacturer again. These situations not only affect the appearance, but also affect the later assembly and performance of the motor.

The second is to check whether the motor iron core has cracks, tooth shape explosion, large and small teeth, deformation or rust. These conditions have more or less impact on the service life, performance and assembly of the motor, mainly due to the problem of quality control. Yuma precision will also conduct the first inspection before each post change or mold change. The on-the-job personnel will conduct self inspection every hour, and the patrol inspection personnel will also conduct patrol inspection every 2 hours, Sampling inspection shall be conducted before shipment.

Finally, you can check whether there are bumps, roughening, scratching, etc. generally, this is not careful in the production process, which only affects the appearance and has no impact on performance and assembly.

So how to deal with the above situation?

If there are rust spots on the surface, gently polish it with #00 abrasive cloth and wipe it with cloth. Burr can be smoothed with file and scraper, residual iron filings shall be pasted with flour mud, and then the surface of iron core shall be painted with insulating paint. In case of chamber sweeping and discoloration, the iron loss test shall be carried out on the iron core according to the severity.

If any gap is found in the iron core, an insulating wedge can be driven into the loose part of the iron core for compression. If you want to know more information about motor iron core, you can call for consultation.