2020-09-25

Several questions about high-speed grinding wheels

　　Regarding the validity period of high-speed grinding wheels:

　　Any high-speed grinding wheel has an expiration date, and everyone needs to use it within the expiration date; once the expiration date is exceeded, it is no longer a qualified high-speed grinding wheel, so it needs to be used within its effective period.

　　About high-speed grinding wheel wear:

　　High-speed grinding wheels will inevitably wear out during long-term use. When the wear condition reaches a certain level, new grinding wheels must be replaced. It is not necessary to use excessive wear in order to save materials. This is an extremely unsafe violation. Generally, when it wears to a diameter of 10mm larger than the diameter of the chuck, a new grinding wheel should be replaced.

　　About the texture of high-speed grinding wheel:

　　During use, if local cracks are found on the high-speed grinding wheel, it should be stopped immediately and replaced with a new grinding wheel, otherwise it is easy to cause the grinding wheel to break and hurt people.