Knowledge

Thermal conductivity refers to a material's capability to conduct heat and is typically represented by the symbol "k" with units in W/mK (Watts per meter Kelvin) in the International System of Units (SI). This property plays a crucial role in gauging conductive heat transfer. The ability of heat transfer fluids to conduct heat is directly influenced by their thermal conductivity. A heightened ther …

Ash content refers to the metallic residues, such as zinc and calcium, left behind when engine oil enters the combustion chamber and burns alongside the fuel. Zinc is a primary element in antiwear additives, while calcium comes from detergent additives.These ashes adhere to the engine parts' surfaces. However, a significant issue arises when these oil-borne residues accumulate between the valve an …

Poor air release ability can damage parts of a system by Incomplete oil film coverage on the metal surfaces, Component wear resulting from reduced viscosity, Impaired performance, or failure of hydraulic systems that may manifest as issues like cavitation, erratic control operation, loss of precision control, and vibrations.Many hydraulic systems incorporate a reservoir to facilitate the settling …

All lubricating oils contain a certain amount of air. Foaming in lubricating oil refers to forming small bubble clusters, where each bubble possesses equal strength in all directions. The potential risks associated with dissolved air are generally linked to the accelerated depletion of additives and the oxidation of the lubricating oil.When the oil accumulates more air, it is called entrained air. …