Knowing Six common methods to inspect grinding wheel crack, you will avoid any danger when using it.
1) visual inspection
Inspect the surface of the grinding wheel for defects and damage directly with the naked eye or other instruments.
2) acoustic inspection (percussion inspection)
The grinding wheel is vertical on the hard ground on the flat (small wheels can be hung by the center hole), using 200-300g weight wooden hammer tapping.
After the first tapping of the end of the percussion, turn the wheel 45o again, and then hit it again. If the sound is clear, there is no crack. It can be used. If the
sound is dull or hoarse, it means that there is a crack. It is strictly forbidden to use (the checked wheel must be dry and free of adhesion).
3) check with the mark
According to the mark affixed on the grinding wheel, check the abrasive, bond, particle size, microstructure, hardness, shape and size of the grinding wheel, whether
it meets the requirements of use.
4) validity issues
The new grinding wheel from the warehouse is not necessarily a qualified grinding wheel, and even the new grinding wheel purchased from the manufacturer is not
necessarily a qualified grinding wheel.Any grinding wheel has a certain period of validity.
5) texture problems
In the use of the process, if the cracks appear in the grinding wheel, it should be stopped immediately, and new grinding wheels should be replaced to prevent the
grinding wheel from crushing and wounding.
6) wear problems
any grinding wheel has its certain wear and tear requirements, wear and tear to a certain extent, you have to replace the new grinding wheel.
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