Effect of temperature in cutting deep holes on the content of harmful components in oil-based coolants

Abstract

It was found that in cutting deep holes, with an increase in the temperature from 20 to 80°C, the content of harmful components: 9-and 2-methylanthracene, 3-methylphenanthrene, etc., in oil-based MR-3K coolant (CL) decreases by 15-25%, i.e., they enter the air of the working zone. The

Isoprenoids in oil-based lubricating-cooling liquids

“…Just as in the case of the polycyclic aromatic hydrocarbons seen in [5], the isoprenoid paraffins that we observed in this study entered the LCL from petroleum during the production process. The isoprenoids do not affect the service properties of the LCL, but they are important for evaluating its environmental characteristics because they do have an effect on humans and the environment.…”

“…We previously [5] observed the above-mentioned alkanes and 2,6,10-trimethyl pentadecane in roughly the same concentrations in a oil-based LCL. Just as in the case of the polycyclic aromatic hydrocarbons seen in [5], the isoprenoid paraffins that we observed in this study entered the LCL from petroleum during the production process.…”