| 摘要 |
FIELD: materials for hydraulic systems. ^ SUBSTANCE: invention relates to working liquids used in hydraulic systems, among them, for hydraulic systems in locking equipment in gaseous main lines. Proposed liquid contains the following components, wt.-%: polymethylsiloxane liquid, 40-60; petroleum high-boiling fraction with boiling point 320-352°C as an organic additive, 8-10, and petroleum fraction with boiling point 165-315°C, the balance, up to 100. Invention provides enhancing work resource of locking equipment up to 250 switching cycles and with a single filling with liquid, improving low-temperature properties and capacity for foam quenching in the system. ^ EFFECT: improved and valuable properties of liquid. ^ 2 tbl, 8 ex |
