Under atmospheric pressure, the lifting platform hydraulic oil can dissolve about 10% of the air, under the pressure of the hydraulic system, in the oil will dissolve more air or gas. Bubbles of air in the oil, if the hydraulic oil cylinder to work in a very short period of time, pressure quickly transform between high and low pressure high temperature can make the bubbles on the high side, burst in the low voltage side, if the element surface is concave points and damage of hydraulic system, hydraulic oil will high-speed rushed to wear on the surface of the component surface acceleration cause leakage.
Hydraulic cylinder as the main components of hydraulic lifting platform system, due to the piston rod in the working process of the bare and environmental place directly, although with a shield and the guide sleeve seals, etc., but also inevitable to dust, dirt into the hydraulic system, accelerate the seal and the piston rod scratches and wear, causing leaks, particle pollution is one of the fastest hydraulic components damage factors.
Due to the influence of wet working environment and other factors, water may enter the hydraulic system, and the friction will be affected by the chemical or electrochemical effects of acid in the air or a small amount of inorganic acid and water remaining in the hydraulic oil, which will reduce the lubrication performance of the hydraulic oil, and make the friction surface material constantly loss, travel corrosion and wear. At the same time, water will cause the valve stem of the control valve to stick together, making it difficult to control the valve to operate and scratch the seal, causing leakage.
Seals are made of oil resistant rubber materials, due to the long time use aging crack, damage will leak in the system, such as when hydraulic system, hydraulic pipeline under high pressure, coupled with pressure instability produced by alternating force, vibration in hydraulic lift platform vibration stress, ZhuanPei under the action of stress, such as, make the line defect in material, corrosion ignition lesions to produce the phenomenon of stress concentration, fatigue damage fracture and the oil, for will be from high temperature and high pressure rubber hose bend distortion is serious place appears variable and chapping, resulting in a blowout.