The hardness of the abrasive agent is added depends on the amount of binding and the density of abrasive, abrasive grains easily fall off indication low hardness; vice versa, which means high hardness. Hardness level is generally divided into super-soft, soft, medium soft, medium, medium-hard, hard and superhard seven magnitude, from these levels can be subdivided in a number of small magnitude. Abrasive hardness measurement methods are more commonly used hand cone, mechanical cone method, Rockwell hardness measurement method and sandblasting assay. The hardness of the abrasive and its dynamic modulus of elasticity has a corresponding relationship, which is conducive to the audio abrasive measured dynamic elastic modulus of said abrasive tools. In the double disc grindingprocess, if they areinternal grinding workpiece material hardness, generally used in low hardness abrasive; Conversely, the selection of high hardness abrasive.
1, the rollers do not add full centrifugal abrasive grinding machine grinding roller and the drum of the drum unit, as in the polishing process, the rollers do not filled with material, the material volume of the drum representing 40 to 50% of the best.
2, roller weight, the quantity to be symmetrical centrifugal grinding machine built with four small roller, the grinding process, the four small tube loaded weight of the material should be fairly; sometimes parts of the processing capacity is small, you can only use one two, the need to pay particular attention to is this: two cylinders should be symmetrically placed in the rolling element, and two roller mill loaded the weight should also be considerable, and prevent centrifugal imbalance, so that the machine violently swing, resulting in failure .
3, the drum and the added weight of the material loaded in each dressing roller grinding time the material (workpiece, abrasives, water, etc.) by weight, not exceed the maximum 11KG; working hours, the wet-milling time of not more than 60 minutes, double disc grinding to no more than 30 minutes is appropriate, and if necessary to continue the work, the drum within the vessel should not exceed 80 degrees is appropriate temperature, if the temperature is too high, will work within the container, cylinder liner adverse PU consequence, we can change the water in the middle, for the continuing operation on the basis of abrasives.