Analysis of the properties of waste paper baler liquid

The property that the liquid of the waste paper baler may be reduced by pressure is called the compressibility of the liquid. The hydraulic oil is compressible, that is, the volume will change after being compressed. When the common pressure of waste paper baler liquid increases, the volume of hydraulic oil decreases, and vice versa. For the bulk elastic modulus of petroleum-based hydraulic oil that is not mixed with air, its rigidity is much greater than that of air, that is, the compression coefficient is very small. For this reason, in engineering, it can be considered that the hydraulic oil of the waste paper baler is incompressible. The reason why the actuator of hydraulic equipment works smoothly and has low noise is because its compression coefficient is extremely small and it has great rigidity.

If there is air dissolved in the hydraulic oil, when the oil flows through narrow gaps such as the orifice or the vacuum zone such as the suction port of the pump, the pressure of the oil will drop rapidly due to the sudden increase of the flow rate or insufficient oil supply, thereby causing The air that has been dissolved in the oil separates out to form bubbles; in addition, a certain amount of air is always mixed in the hydraulic system of the waste paper baler. Due to the large compressibility of the air, the bulk elastic modulus of the oil with air inside Will be significantly reduced, which will cause the actuator in the hydraulic system to crawl or tremble, and affect the smoothness of the actuator. For this reason, it is necessary to ensure good sealing performance of the hydraulic system of the waste paper baler, and set an exhaust device at the top of the hydraulic cylinder to remove air in time to avoid mixing a large amount of air in the oil and affecting the performance of the hydraulic system.
The waste paper baler produced by NKBALER has been recognized by many customers with high-quality qualifications and professional craftsmanship according to everyone's actual needs, and is worthy of trust.