Analysis of high temperature which may cause harm to the injection molding machine

Date：2016-07-01 10:38:39

    Injection molding machine is used in the plastics processing industry the largest amount of processing machinery, only a large number of products available for direct production of injection molding machines, but also the composition of injection stretch blow molding process of key equipment. In the injection molding process, many companies will find there is a rise in temperature of the injection molding machine phenomenon, and this fact, injection molding machinery and equipment is a great harm, will have the following five specific hazards:

    One hazard: mechanical cause thermal deformation. Motion components hydraulic components in thermal expansion coefficient differences with its smaller and trainee stuck, causing action failure, affecting the accuracy of the hydraulic drive system, resulting in deterioration of the quality of the work element.

    Hazards II: cause the oil viscosity decreases. Injection molding machine temperature is too high will lead to save the oil viscosity decreases, leakage increases, the volumetric efficiency of the pump efficiency and the entire system will be significantly reduced. Because the viscosity of the oil decreases, thin film spool and other mobile elements are cut through, the frictional resistance increases, resulting in increased wear.

    The three hazards: lead rubber seal shape change. Injection molding machine temperature is too high will lead to the province's rubber seal deformation, failure to speed up the aging, reduce the sealing performance and lead to the use of time, causing leaks.

    The four hazards: accelerate oil oxidation deterioration. Injection molding machine temperature rise too high will accelerate oil oxidation deterioration, precipitation of asphalt material, reducing the lead with a time of hydraulic oil. Precipitates clogged pores and crevices damping valve port, causing the pressure valve can not be death card operation, a metal pipe elongation and bending, and even rupture.

    The five hazards: lead to decreased quality of work elements. Injection molding machine temperature rise too high will lead to lower quality of work elements, oil dissolved air to escape, cavitation, causing the hydraulic system lead to reduced work performance.

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