Влияние физико-механических и физико-химических характеристик синтетических алмазов АС20 100/80 после разделения в магнитных и электрических полях на износостойкость шлифовального инструмента

Abstract

The overall performance of the diamond grinding tool in many respects depends on quality used grinding powder synthetic diamond. Thus defects of crystals of the diamond, formed during synthesis during growth of crystals of diamond, both volumetric, and defects of a surface cause magnetic and electrowire properties of powders of diamond that influences their hysicomechanical, physicochemical and operational characteristics.
The results of studying of influence of hysicomechanical and physicochemical characteristics of diamonds of mark АС20 of narrow grinding 100/90 on character of deterioration of the grinding tool are submitted in article.
It is revealed, that at low productivity of processing (50, 100 мм3/mines) use of the circles equipped with diamonds of magnetic fraction is more preferable. At higher efficiency of processing (400 мм3/mines) wear resistance of the circles equipped with diamonds of magnetic fraction, is reduced owing to reduction of thermostability of diamonds. Therefore at high speeds of processing the grinding circles equipped with diamonds of non-conducting and not magnetic fractions with smaller contents of impurity and inclusions, have the smaller charge of diamonds and have higher wear resistance