非塩素系切削油の検討

抄録

Organo-chlorine compounds have widely been used as an effective extreme pressure (EP) additive in cutting fluids because of their excellent performance in various metal working operations. However, for environmental and safety reasons, there has been the trend toward replacing chlorinated EP additives by alternatives and the most successful replacement would be organo-sulfur compounds combined with calcium sulfonates. In general, calcium sulfonates are categorized into a detergent as an additive, and calcium salicylates are also the representative compounds which act as a detergent. Thus, this study investigates the combined effect of an organo-sulfur compound and a calcium salicylate and demonstrates that this combination provides the higher cutting performance than that of the organo-sulfur compound combined with calcium sulfonates.