| abstract |
The invention discloses a kind of volatile-type pipe expanding oil and its preparation methods, form base oil by low viscosity hydrocarbon solvent oil and oxidation vegetable and animals oils, add extreme pressure additive, solubilized dispersing agent, emulsifier, copper passivator and auxiliary agent and are formulated.Volatile-type pipe expanding oil of the invention can guarantee the lubrication extreme pressure property that expanding process is able to satisfy under condition of high voltage, reduce the harm containing chlorine, sulfur-bearing, phosphorous extreme pressure agent, improve protection to expanding head and expanding oil it is expanding after easy cleaning. |