Appropriate viscosity and good viscosity-temperature properties are crucial. Excessive viscosity can lead to energy loss, rapid temperature rise, and the occurrence of cavitation in the main oil pump. Insufficient viscosity cannot ensure adequate lubrication, and it will exacerbate wear and increase system leakage. Viscosity-temperature property refers to the degree of change in viscosity with temperature. Lubricity

Hydraulic oil inAs we continuously move towards a high-pressure direction, the lubricity becomes particularly crucial. The stability against oxidation, as oils operate under high temperatures, can lead to oxidation and the formation of sludge and other deposits. Over-oxidation can then cause sludge to clog and damage the hydraulic system. Anti-rust and anti-corrosion properties; the oil must possess anti-rust and anti-corrosion capabilities to greatly protect the metal surface.

Bubble resistance and air release, as well as air pollution, are among the causes of hydraulic oil failure. Air in the oil appears as oil bubbles with minimal compressibility and air with high compressibility. When the oil pressure is low, air escapes from the oil, leading to bubble and void formation. Under high pressure, bubbles are crushed, which can exacerbate the compression and deterioration. Water resistance, hydraulic oilDuring operation, water can easily be mixed in due to condensation and leaks. The presence of water exacerbates oil oxidation, leading to a decline in the oil's other performance characteristics. The shearing stability, as the oil flows through small holes and annular gaps, is subjected to significant shearing forces, which can degrade the oil's viscosity-temperature properties.