Mold temperature requirements
2023-01-04
Mold temperature requirements
The temperature inside the mold is not uniform, and is closely related to the time point in its cycle. The role of the mold temperature machine is to keep the temperature constant, that is, to prevent the temperature difference from fluctuating in the production process. The following are several methods of controlling it to control common methods such as mold temperature and fluid temperature, and the control accuracy can meet most of the requirements. Using this control method, the temperature displayed in the controller and the mold temperature are not uniform; the temperature fluctuation of the mold is quite large, because the thermal factors affecting the mold are not directly measured and compensated for these factors including the injection cycle change, injection speed, melting temperature and Room temperature. The second is the direct control of the mold temperature. The method is to install a temperature sensor inside the mold, which is adopted when the mold temperature control precision requirement is relatively high. The main features of the Hebei Longjing mold temperature control include: the temperature set by the controller is consistent with the mold temperature; affecting the mold The thermal factors can be measured and compensated directly. Typically, mold temperature stability is better than by controlling fluid temperature. In addition, mold temperature control is more reproducible in production process control. The third is joint control. Joint control is a combination of the above methods that simultaneously controls the temperature of the fluid and the mold. In joint control, the position of the temperature sensor in the mold is important. When placing the temperature sensor, consider the shape, structure, and position of the cooling passage. In addition, the temperature sensor should be placed where the quality of the molded part is decisive. There are many ways to connect one or more mold temperature machines to the injection molding machine controller. Use digital interfaces for operational, reliability and interference immunity.
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