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What is the effect of oil pollution on the leakage of the hydraulic system of the injection molding machine?
gas pollution
Under atmospheric pressure, about 10% of the air can be dissolved in the hydraulic oil, and under the high pressure of the hydraulic system, more air or gas will be dissolved in the oil.
Air forms bubbles in the oil. If the hydraulic support changes rapidly between high and low pressure in a very short period of time during the working process, the bubbles will generate high temperature on the high pressure side and burst on the low pressure side. If the components of the hydraulic system When there are pits and damage on the surface, the hydraulic oil will rush to the surface of the component at a high speed to accelerate the wear of the surface and cause leakage.
particle pollution
The hydraulic cylinder is the main executive component of the hydraulic system of some injection molding machines. Since the piston rod is exposed and directly in contact with the environment during the working process, although dust rings and seals are installed on the guide sleeve, it is inevitable that dust and dirt will be brought into the air. Enter the hydraulic system, accelerate the scratch and wear of seals and piston rods, etc., thereby causing leakage, and particle contamination is one of the fastest damage factors for hydraulic components.
water pollution
Due to the influence of factors such as the humidity of the working environment, water may enter the hydraulic system, and the water will react with the hydraulic oil to form acid substances and sludge, reduce the lubrication performance of the hydraulic oil, accelerate the wear of components, and the water will also cause the valve of the control valve. The rod sticks, making it difficult to operate the control valve, scratching the seal, and causing leakage.
Under atmospheric pressure, about 10% of the air can be dissolved in the hydraulic oil, and under the high pressure of the hydraulic system, more air or gas will be dissolved in the oil.
Air forms bubbles in the oil. If the hydraulic support changes rapidly between high and low pressure in a very short period of time during the working process, the bubbles will generate high temperature on the high pressure side and burst on the low pressure side. If the components of the hydraulic system When there are pits and damage on the surface, the hydraulic oil will rush to the surface of the component at a high speed to accelerate the wear of the surface and cause leakage.
particle pollution
The hydraulic cylinder is the main executive component of the hydraulic system of some injection molding machines. Since the piston rod is exposed and directly in contact with the environment during the working process, although dust rings and seals are installed on the guide sleeve, it is inevitable that dust and dirt will be brought into the air. Enter the hydraulic system, accelerate the scratch and wear of seals and piston rods, etc., thereby causing leakage, and particle contamination is one of the fastest damage factors for hydraulic components.
water pollution
Due to the influence of factors such as the humidity of the working environment, water may enter the hydraulic system, and the water will react with the hydraulic oil to form acid substances and sludge, reduce the lubrication performance of the hydraulic oil, accelerate the wear of components, and the water will also cause the valve of the control valve. The rod sticks, making it difficult to operate the control valve, scratching the seal, and causing leakage.
