FIELD: lubricants.
SUBSTANCE: present invention provides a composition in which base oil based on hydrocarbons is used and in said base oil, in terms of total amount of composition, 30–300 ppm basic calcium salicylate and, in terms of total amount of composition, net weight of 0.07–2.0 wt % of non-dispersible polymethacrylate, having weight-average molecular weight of 5,000–200,000. Electrical conductivity at 25 °C from said composition is not less than 200 pS/m, flash point is not less than 240 °C, pour point is −40 °C or lower and a micro-coupling coefficient at 140 °C is not less than 0.08.
EFFECT: present lubricating oil composition can be used in machines equipped with electronic control device, and can transmit electrical conductivity with possibility of preventing occurrence of "noise", which is unfavorable for electronic control.
3 cl, 5 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION OF LUBRICATING OIL FOR HYDRAULIC EQUIPMENT EQUIPPED WITH ELECTRONIC CONTROL DEVICES | 2017 |
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| LUBRICATING OIL COMPOSITION FOR SLIDING GUIDE SURFACE | 2015 |
|
RU2703733C2 |
