Blog Information

• Posted By : xiu umin
• Posted On : Apr 22, 2020
• Views : 263
• Category : Education
• Description : The temperature in the Air Cooler Mould is not uniform at all points, which is also related to the time point in the injection cycle.

Overview

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  The temperature in the Air Cooler Mould is not uniform at all points, which is also related to the time point in the injection cycle. Using this control method, it is shown that the temperature of 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. These factors include the change of injection cycle, injection speed, melting temperature and room temperature. The second is the direct control of mould temperature. This method is to install a temperature sensor inside the mould, which will only be adopted when the mould temperature control accuracy is required to be relatively high.

  The main characteristics of air cooler 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. In general, the stability of mould temperature is better than by controlling the fluid temperature. In addition, the repeatability of mould temperature control in production process control is good. The third is joint control. Joint control is a combination of the above methods, which can control the temperature of fluid and mould simultaneously. In the joint control, the position of the temperature sensor in the mould is extremely important. When placing the temperature sensor, the shape, structure and the position of the cooling channel must be considered. In addition, the temperature sensor should be placed in a place that plays a decisive role in the quality of injection moulded parts. There are many ways to connect one or more mould temperature machines to the controller of the injection moulding machine. It is best to use digital interface from the viewpoint of operability, reliability and anti-interference.

  For thermoplastics, a higher air cooler mould temperature usually improves surface quality and fluidity, but prolongs cooling time and injection cycle. A lower mould temperature will reduce the shrinkage in the mould, but will increase the shrinkage of the injection moulded parts after demoulding. For thermosetting plastics, a higher mould temperature usually reduces the cycle time, which is determined by the time required for cooling the parts. In addition, in plastic processing, a higher mould temperature will also reduce plasticizing time and cycle times.

  Taizhou Huangyan Rongwei Plastic Mould Co.,Ltd.is located in Huangyan,which is the mould town in China. Our company have more than 20 years professional experience in mould field. We have the most advanced equipments for mould manufacturing as well as the most qualified trained employees. We have made full use of high techniques as CAD/CAM/ CAE for a long time and summarized a set of specific expeiience. Our mould are mainly exported to the contries in Europe, Mid-East,Africa and so on. For more product details, please click on our official website: https://www.furnituremould.com/