The Discrimination Principle For Replacing Sand Belts

The determination of whether the sand belt has expired is mainly based on its wear condition. When it enters the end of wear, the service life of the sand belt also ends, indicating the need to replace it with a new one. Whether the wear enters the final stage is mainly reflected by the following parameters:

1) When the material removal rate or grinding efficiency drops to the specified resin, it can be considered that the service life of the abrasive belt has expired for this grinding (given grinding amount and other conditions).

2) Grinding force. When the grinding force exceeds a certain specified value during the grinding process, it can also be used as a sign of the expiration of the service life of the abrasive belt.

3) Grinding temperature. During the grinding process, if the grinding temperature exceeds the specified standards, it can also be considered that the service life of the abrasive belt has expired. In practical applications, the direct method to determine whether the temperature exceeds the standard is to observe whether there are burns on the surface of the workpiece.