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Zhejiang Ceeto Molding Technology Co.,Ltd.


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Home Appliance Injection Mould Cooling System


One fundamental principle of home appliance injection moulding is that hot material enters the mould, where it cools rapidly to a temperature at which it solidifies sufficiently to retain the shape of the impression. The temperature of the mould is therefore important as it governs a portion of the overall moulding cycle. While the melt flows more freely in a hot mould, a greater cooling period is required before the solidified moulding can be ejected. Alternatively, where the melt solidifies quickly in a cold mould it may not reach the extremities of the impression. A compromise between the two extremes must therefore be accepted to obtain the optimum moulding cycle.

The operating temperature for a Home Appliance Mould will depend on a number of factors which include the following: type and grade of material to be moulded, the length of flow within the impression, wall section of the moulding, length of the feed syste, etc. it is often found advantageous to use a slightly higher temperature than is reuqired just to fill the impression, as this tends to improve the surface finish of the moulding by minimizing weld lines, flow marks and other blemishes.

To maintain the required temperature differential between the mould and the plastic matereial, water is circulated through holes or channels within the mould. These holes or channels are termed flow ways or water ways and the complete system of flow ways is termed the circuit. However, it's not always practicable to adopt the idealized approach and the mould designer must use a fair amount of common sense when laying out coolant circuits if unnecessarily expensive moulds are to be avoided, Zhejiang Ceeto Molding company has a number of professional mould designers who are capable of doing great design jobs and save money for you on the mould.

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Jenny Wang

Ms. Jenny Wang


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