Castor based composition applicable to hydraulic system working solution under cryogenic working condition

Abstract

The invention discloses castor based composition applicable to a hydraulic system working solution under the cryogenic working condition. 40% of diisodecyl sebacate and 60% of alkylbenzene are composited as a base liquid, and the base liquid cooperates with multiple additives including an antioxidant, an antirusting agent, a demulsifying agent, an antiwear agent and a reinforcing agent. The composition has appropriate viscosity, accuracy, reliability as well as good viscosity-temperature performance, lubricating property, wearing resistance, water resistance, rust resistance, corrosion resistance, oxidation stability, fire retardance, shear stability, foam resistance, air release property, sealing material adaptability and environment friendly performance, and has lubricating, cooling, anti-rust and anti-corrosion functions on the system besides energy transmission, conversion and control in an operation process.

Description

technical field [0001] The invention belongs to the field of hydraulic system working fluid, in particular to a composition of castor-based hydraulic system working fluid suitable for cryogenic working conditions. Background technique [0002] With the continuous development of my country's science and technology and manufacturing industry, many scientific research marine equipment needs to work in the Antarctic, Arctic and cold winter environments. These equipment include deck machinery on engineering ships, windlasses, cranes, construction machinery, special vehicles, Both the equipment and the liquid delivery pump put forward higher requirements on the low temperature performance of the working fluid of the hydraulic system. It is required that the working fluid can still have good viscosity-temperature characteristics, flow, diffusion, lubrication, sealing, cleaning and Anti-rust performance. [0003] At present, low-temperature hydraulic oil and ultra-low temperature hyd...

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Problems solved by technology

They generally have a minimum operating temperature of -30°C to -40°C, and generally these two types of hydraulic oil will become turbid due to the precipitation of wax at around -20°C, and affect the fluidity and filtration performance of the oil. , so it is easy to block the pipelines, valves and filters of the hydraulic system

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