Physical and chemical properties of Sanding Sheets the abrasive abrasive manufacturing process also has a major impact , because the ceramic abrasive require firing at high temperatures , and thus part of its abrasive quality indicators project (such as chemical composition, magnetic content , etc. ) requirements compared other bonded abrasives are more stringent. In order to ensure product quality ceramic abrasive and avoid possible waste, abrasives factory abrasive into the plant needs to make the necessary physical and chemical testing , confirm its compliance with the relevant national standards, can be put into production . Hardness refers to the abrasive sanding belt degree of difficulty abrasive grit abrasive surface under loads from falling . 1 , in general, the hardness of the grinding wheel for grinding soft hard workpiece to the grinding wheel hardness harder than the soft workpiece . 2 , grinding , large or feed large contact surface of the workpiece and the abrasive , the abrasive hardness of the election should be softer . When forming grinding , in order to ensure the accuracy of the workpiece geometry , may be Non woven flap wheel appropriate to increase the abrasive hardness.
3, the poor thermal conductivity of the workpiece and the grinding sharpening tool , in order to avoid burns , annealing, select softer abrasive hardness . 4 , when the high-speed grinding , abrasive hardness should choose softer ; dry grinding abrasive hardness ratio should be used for wet grinding softer ....
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