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Several Methods To Control The Temperature Of Pipe Fittings Mou
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The temperature in the Pipe Fittings Mould is uneven, and the injection moulding of the pipe fittings mould is also related to the time point in the injection cycle. The following control methods are suitable for controlling the mould temperature: controlling the fluid temperature is the most commonly used method, and the control accuracy can meet the requirements of most situations.
Using this control method, the temperature displayed on the controller is not consistent with the mould temperature; The temperature fluctuation of the mould is quite large, because the thermal factors affecting the mould are not directly measured and compensated, including the change of injection cycle, injection speed, melting temperature and room temperature. Secondly, direct control of mould temperature. In this method, a temperature sensor is installed inside the mould, which will be adopted only when the precision of mould temperature control is high. The main characteristics of mould temperature control include: the temperature set by the controller is consistent with the mould temperature; The thermal factors affecting the mould can be directly measured and compensated. Generally, the stability of mould temperature is better than that by controlling fluid temperature.
The purpose of controlling the mould temperature of pipe fittings and the influence of mould temperature on injection moulding parts In the injection moulding process, the main purpose of controlling mould temperature is to heat the mould to working temperature, and the other is to keep the mould temperature constant at working temperature. If the above two points are successful, the cycle time can be optimized, and then the stable high quality of injection moulded parts can be ensured. Mould temperature will affect surface quality, fluidity, shrinkage, injection cycle and deformation. Excessive or insufficient mould temperature will have different effects on different materials. For thermoplastics, a higher mould temperature will usually improve the surface quality and fluidity, but it will prolong the cooling time and injection cycle. The lower temperature of the pipe fittings mould will reduce the shrinkage in the mould, but it will increase the shrinkage rate of injection moulded parts after demoulding. For thermosetting plastics, a higher mould temperature usually reduces the cycle time, and the time is determined by the cooling time of the parts.
In addition, in the processing of pipe fittings mould, higher mould temperature will also reduce plasticizing time and cycle times.
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