Before using the grinding wheel, strict inspection work should be carried out to ensure the safety and durability of the grinding wheel. How is the inspection work carried out?
(1) Inspection of grinding wheel markings. Grinding wheels without markings or with unclear markings that cannot be verified or confirmed for their characteristics, regardless of whether they have defects, cannot be used.
(2) Inspection of grinding wheel defects. The inspection method is visual inspection and audio inspection:
① Visual inspection is the direct use of the naked eye or other tools to observe whether there are cracks or damages on the surface of the grinding wheel.
② Sound inspection, also known as tapping test, mainly focuses on internal defects of the grinding wheel. The inspection method is to use a small wooden hammer to tap the grinding wheel. The normal grinding wheel sound is crisp, dull, and hoarse, indicating a problem.
(3) Inspection of the rotational strength of grinding wheels. A batch of grinding wheels of the same model should undergo rotational strength sampling inspection. Grinding wheel batches that have not undergone strength inspection are strictly prohibited from installation and use.
It is extremely necessary to strictly inspect the grinding wheel before installation and use. Grinding wheels with defects such as cracks are not allowed to be installed and used.