Synthetic ester type flame-retardant hydraulic oil

Abstract

The invention discloses a synthetic ester type flame-retardant hydraulic oil. The synthetic ester type flame-retardant hydraulic oil comprises the following components, 98.6%-99% of a saturated polyolester base oil, 0.2%-0.5% of vulcanized di-tert-butyl phenol, 0.1%-0.25% of benzotriazole octadecylamine salt, 0.2%-0.4% of 4-diisooctyl diphenylamine, 0.25%-0.4% of thiophosphate ammonium salt and 0.17%-0.34% of an additive. The synthetic ester type flame-retardant hydraulic oil disclosed by the invention is reasonable in design, stable in oxidation resistance, long in service life, and short inoil change period; using cost is reduced; the auxiliary agent performance of the base oil is stable, and wear resistance is excellent; the use of additives is reduced; the ash content of the flame-retardant hydraulic oil is reduced to a certain extent; the degradation rate is increased; the asymmetry of molecular structures in the base oil is higher, oil product pour point is lower; meanwhile, the synthestic ester type flame-retardant hydraulic oil is high in wear resistance, devices are not prone to being abraded in a high-speed and high-pressure environment, and the maintenance cost of devices is reduced.

Description

technical field

[0001] The invention relates to the technical field of hydraulic systems, in particular to a synthetic ester type fire-resistant hydraulic oil. Background technique

[0002] Hydraulic oil is a hydraulic medium used in a hydraulic system that utilizes liquid pressure energy. It plays the role of energy transmission, system lubrication, anti-corrosion, rust prevention, and cooling in the hydraulic system. Due to the continuous increase in the operating pressure of the vane pump and plunger pump and the impact on The wear and tear of the friction pair puts forward various demands on the hydraulic oil, which is also a large family of lubricating oils. As the requirements for the operating conditions of the equipment become more and more stringent, the requirements for fire prevention, rust prevention, and environmental protection are constantly increasing. improve. At present, the fire-resistant hydraulic oils on the market mainly include water glycol type, synt...