The reasons and processing methods of the injection mold liquid marble sheet pressure system

Date:2022-7-19 Author:Sam

The reasons why the injection molding machine is too high
\u0026 nbsp; \u0026 nbsp; (1) The volume of the fuel tank is too small, the heat dissipation area is insufficient, but the cooling device is too small
\u0026 nbsp; \u0026 nbsp; The quantitative pump fuel supply system of capacity will have most of the excess flow at work at high pressure to overflow from the overflow valve and heat up.
\u0026 nbsp; \u0026 nbsp; (3) In the system in the system, there is a failure of the load load or due to the unloading load. The oil pump cannot be unloaded when the work is stopped. Cause Wen Sheng.
\u0026 nbsp; \u0026 nbsp; (4) The system tube is too long, too much bent, local pressure loss and a lot of pressure loss.
\u0026 nbsp; \u0026 nbsp; (5) Insufficient component accuracy and poor assembly quality, the mechanical friction loss of relatives is large.
\u0026 nbsp; \u0026 nbsp; (6) The cooperative gap between the component is too small, or the gap is too large after wear, the internal and external leaks are large, resulting in a large volume loss.
\u0026 nbsp; \u0026 nbsp; (7) The pressure adjustment of the hydraulic system is much higher than the actual. Sometimes it is necessary to increase the pressure due to the tight sealing or the damage and leakage of the sealing parts.
\u0026 nbsp; \u0026 nbsp; (8) The temperature of Qi Hou and the operating environment is high, resulting in an increased oil temperature.
\u0026 nbsp; \u0026 nbsp; (9) The viscosity of the oil is improper, the viscosity is large, and the viscosity is too small.
The harm of the injection molding machine \u0026 nbsp; the high temperature is too high
\u0026 nbsp; \u0026 nbsp; (1) Move the mechanical to produce thermal deformation, and the motion components with different thermal expansion coefficients in the hydraulic component due to their cooperation Sheet Board Extrusion Line [ 123] The gap becomes smaller and stuck, causing the action failure and affecting the transmission accuracy of the hydraulic system, resulting in poor work quality. \u0026 nbsp; \u0026 nbsp; (2) reduce the viscosity of oil and increase leakage. The volume efficiency of the pump and the efficiency of the entire system will be significantly reduced. Due to the decrease in the viscosity of the oil, the oil membrane of the mobile parts such as the slide valve becomes thinner and cut off, and the friction resistance increases, resulting in increased wear.
\u0026 nbsp; \u0026 nbsp; (3) Deformation of rubber sealing parts, accelerate aging failure, reduce the sealing performance and use life, and cause leakage.
\u0026 nbsp; \u0026 nbsp; (4) Accelerate the oxidation of oil oxidation and deteriorate, and precipitate asphalt substances to reduce the service life of hydraulic oil. The precipitating object is blocked by the horn and gap type valve port, causing the pressure valve card to be killed without action, the metal pipeline is elongated and the curved, and even the rupture.
\u0026 nbsp; \u0026 nbsp; (5) reduce the air separation pressure of the oil, dissolve the air in the oil, and generate air points, resulting in the workingality of the hydraulic systemCan be reduced.
\u0026 nbsp; injection molding machine \u0026 nbsp; High temperature rise processing method
\u0026 nbsp; \u0026 nbsp; (1) Frequent inspection and adjustment of the pressure of overflow valve according to different load requirements to make it just right.
\u0026 nbsp; \u0026 nbsp; (2) Reasonable selection of hydraulic oil, especially the oil viscosity. Under the condition of conditions permit, try to use a lower viscosity to reduce the loss of viscosity friction.
\u0026 nbsp; \u0026 nbsp; (3) Improve the lubrication conditions of exercise parts to reduce friction loss, which is conducive to reducing working load and reducing fever.‘
\u0026 nbsp; \u0026 nbsp; (4) Improve the assembly quality and accuracy of hydraulic components and hydraulic systems, strictly control the gap between the cooperation and improve the lubrication conditions.The sealing materials with small friction coefficients and improved sealing structures are used to reduce the starting power of the hydraulic cylinder as much as possible to reduce the heat generated by the loss of mechanical friction.
\u0026 nbsp; \u0026 nbsp; (5) Cooling device with necessary time