How To Deal With Too High Temperature In Injection Molding Process

- Nov 16, 2017-

As is known to all, the injection molding process, the temperature is a very critical factor, it will directly affect the quality of the injection molding parts, therefore, each injection molding enterprises have a very effective management method of injection molding processing temperature.

So, the injection molding temperature is too high in the end what are the disadvantages? How do we deal with the problem of too high temperature? Now let's get to the bottom of it.

1, the machine produces thermal deformation: hydraulic components in the thermal expansion coefficient of the different moving parts because of its cooperation with the smaller and jammed, causing movement failure, affect the transmission accuracy of the hydraulic system, resulting in poor quality of components work.

2, reduce the viscosity of the oil: the injection machine temperature rise is too high will lead to lower viscosity of the oil, leakage increases, the volume efficiency of the pump and the efficiency of the entire system will be significantly reduced. As the viscosity of the oil decreases, the oil film of the sliding parts such as the slide valve is thinned and cut, and the friction resistance increases, leading to the increase of wear.

3, make rubber seals deformation: injection molding machine temperature rise is too high will make rubber seals deformation, accelerated aging failure, reduce sealing performance and service life, cause leakage.

4, accelerate the oxidation of oil deterioration: injection molding machine temperature rise is too high will accelerate the oxidation of oil metamorphism, precipitation of asphalt material, reduce the service life of hydraulic oil. The precipitates clog the damping orifice and slit valve port, leading to the failure of the pressure valve, the elongation of the metal pipe, the bending and even the rupture of the valve.

5, leading to poor quality of components: the temperature rise of injection molding machine will lead to poor quality of components, oil dissolved air escaping, cavitation, resulting in lower hydraulic system performance.