Development and application of metal cutting fluid with environment-friendly naphthenic base oil
Naphthenic base oil containing aro-matic hydrocarbons was prepared by hydrotreating,hydrodecondensing and supplementary refining un-der three stages of high pressure hydrogenation pro-cess,and environment-friendly metal cutting fluid was prepared by using it,and replacing harmful substances in traditional cutting fluids with low-toxic or non-toxic components.Its comprehensive properties were evaluated.The results showed that the kinematic viscosity of the naphthenic base oil was 23.09 mm2/s at 40℃,and the mass fraction of carbon atoms in aromatic carbon(CA),naphthenic carbon(CN)and alkane carbon(CP)were 7.4%,46.5%and 46.1%,respectively.The mass fraction of base oil in the optimal preparation scheme of metal cutting fluid was 30%.The performance indexes and prohibited substance content indexes of the prepared cutting fluid were in accordance with the national standards.The appearance of the cutting fluid re-mained uniform,and there was no stratification or floating oil flower on the surface in the process of using.
metal cutting fluidnaphthenic base oilhigh pressure hydrogenationkinematic viscosi-tyemulsifierprohibited substance
万方数据
维普
