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Mold temperature control system which has the role of
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| Time：2013.10.15 News Sources：Dongguan Zhongyu precise Mold Co., Limited Views： |
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| In the injection molding process, the mold temperature on the quality of plastic parts, productivity has great influence, therefore, must control the temperature, the temperature appropriate, stable and uniform. Mold temperature control system mainly has following several functions. 1 to ensure the quality of plastic parts. Plastic many varieties, each kind of plastic because of the variety and different additives, the optimum temperature of its forming, through the temperature adjusting system, can get the best mold temperature, the plastic has good moldability. Mold temperature concavo convex if different, will make the plastic stress increase, cause warpage, and temperature control system can make the convex and concave die is similar to the temperature and uniform, to reduce the deformation of great benefit. Mold temperature is proper, can make the mechanical properties of plastics is improved greatly, make plastic parts with good mechanical strength. Local increased mold temperature can effectively improve the appearance quality of the plastic parts, plastic parts surface smooth, lustrous. For crystalline materials, should be used with high temperature, which is in favor of the crystallization process, the plastic deformation is not easy. For the flexible plastic, if the low mold temperature will be beneficial to the plastic part dimension stability. 2 increase productivity. The plastic melt temperature in injection molding is very high, the filling should be cooling, curing in order to remove the plastic mold, the melt to cure this period of time, greatly restricted the improvement of productivity, and the mold temperature control system is in the shortest possible time, the mold temperature is lower, so as to shorten the the production cycle of the 2/3-4/5, it seems, shorten the cooling time molding cycle is the key to increased productivity. Therefore, we can shorten the cooling time in the following ways. Increasing flow rate of cooling water, the flow state change of cooling water, in order to improve the heat transfer coefficient, shorten the cooling time. The temperature will reduce the cooling water, and mould parts of the temperature, the faster the mold cooling. In mold design and processing of the cooling channels as perfect as possible, and make the die can quickly heat exchange. |
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