blade if not used immediately

1 blade if not used immediately, it should be flat or use the hole to hang up, the blade can not be stacked horizontally with other items or foot, and pay attention to moisture and corrosion.
(2) When the blade is no longer  sandpaper roll sharp cutting surface roughness must be promptly re-grinding. Grinding can not change the original angle, and destruction balancing.
3 blade diameter correction, positioning hole machining, etc., must be carried out by the factory. If the processing is bad, will affect the product effect, and may be dangerous, reaming in principle can not exceed the original diameter 20mm, so as not to affect the balance of stress.
4 of alloy wheel selection. 1) resin abrasive roll  bond diamond grinding wheel bond strength is weak, it can be self-sharpening, grinding, and not blocked, high grinding efficiency, small grinding force, low grinding temperature, the disadvantage is poor wear resistance, abrasive wear and tear , it is not suitable for heavy duty grinding. 2) vitrified diamond grinding wheel wear resistance and superior binding capacity of the  sandpaper resin binder, sharp cutting, grinding, high efficiency, easy to heat and clogging, thermal expansion is less easy to control precision, shortcomings coarse grinding surface, higher costs . 3) metal-bonded diamond wheels combined with high strength, wear resistance, low wear, long life, grinding, low cost, can withstand a greater load, but sharp poor, easy to plug. 4) abrasive particle size on the grinding wheel cutting the amount of blockage and have a certain influence, coarse sand and fine sand compared to the depth of cut large abrasive cutting edge wear increases, whereas wheel easy to plug. 5) Wheel hardness greater impact on congestion, high hardness, high thermal conductivity wheel is not conducive to surface cooling, but is conducive to improve .