| 摘要 |
PURPOSE: A hydraulic oil composition for preventing a cylinder rod discoloration and a cylinder noise of a heavy equipment for construction is provided to prevent a pyrolysis by enhancing friction efficiency of hydraulic oil, and to control sludge generation. CONSTITUTION: A hydraulic oil composition for a heavy equipment for construction contains 0~5.0wt% of friction reduction agent by the total weight of the hydraulic oil composition. The friction reduction agent is hindered polyol ester selected from the group consisting of neopentyl glycol, trimethylol propane, penta aresetoll and dipenta aresetoll. The friction reduction agent is a mixture of diethoxylated tallow alkylamine and alkyl amine phosphate. |
