Any grinding wheel wear problems has its use of a certain wear requirements, wear reaches a certain level must be re-replacement of the grinding wheel. Not in order to save material, it requires the use of ultra-wear, which is a very unsafe violations. General rule, when the wheel wear to chuck diameter than the diameter of 10mm, it should be replaced with new wheel. Valid questions from the Treasury brought out a new wheel is not necessarily qualified wheel, or even buy a new wheel from the factory are not necessarily qualified wheel. Any wheel has its certain expiration date, the expiration date of use, it is qualified wheel; than valid to use, it is not necessarily qualified wheel. Statutes provides that "wheel should be used within the validity period, resin and rubber bonded grinding wheel storage after one year must be approved by rotation test, those who pass before using." Texture problems in the course, if we find the local wheel cracks should immediately stop using and re-replacement of the grinding wheel, grinding wheel to avoid crushing injury accident.
Other Precautions
Environmental issues grinder wheel should generally be set up private room, and is prohibited in the room or grinder wheel stacked near flammable items, to avoid fire or explosion, nor should a grinder near misplacing other parts or items. Management issues should be specifically responsible grinders, where non-unit personnel wishing to grinder to grind objects, subject to full-time person in charge of licensing and strict compliance with safety procedures, is strictly prohibited without the consent of the responsible officer, unauthorized outsiders mess with grinders. In addition, the wheel should also be specifically responsible for replacement, prohibit others from unauthorized change, installation of wheel. Shutdown problem after the operator stops working, you should immediately turn off the car. In the absence of prohibited use grinders, unattended case idling. In addition, after use should be kept shortwave turbine clean.
Shape can be divided according to level grinding wheels, bevel wheel, cylindrical grinding wheels, cup wheels, disc wheel, etc.; binding agents can be classified according to the ceramic grinding wheel, resin grinding wheel, rubber wheel, metal grinding wheel. The wheel parameters are abrasive, viscosity, hardness, binders, shape, size and so on. Since wheel usually work at high speed, thus turning test should be carried out before use (guaranteed wheel at the maximum operating speed, not break) and static balance test (to prevent machine vibrations caused by the work). Grindstone at work for some time, should be trimmed to restore grinding performance and correct geometry.
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