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Supply Top Quality double injection on Sale
Supply Top Quality double injection on Sale:The temperature of each point in the control die is not uniform, which is also related to the point in time in the injection cycle. After injection, the cavity temperature rises to the highest, and the hot melt glue touches the cold wall of the cavity body. When the part is disassembled, the temperature is minimized. The role of the thermostat is to keep the temperature constant between 2 min and 2 Max, that is, to prevent temperature differences (W) from fluctuating up and down the production process or gap.
Supply Top Quality double injection on Sale
The following control methods are suitable for mold temperature control: Controlling fluid temperature is the most common method, and control accuracy can meet the requirements in most cases. This control method shows that the temperature of the controller is not consistent with the temperature of the die, and the temperature fluctuation of the die is large, which affects the thermal factors of the mold, including the change of injection molding period, injection rate, melting temperature and room temperature, and there is no direct measurement and compensation.
The second is to directly control the mold temperature. This method is to install the temperature sensor inside the mold, only in the case of high temperature control accuracy of the mold will be used temperature sensor. The main characteristics of mold temperature control are: the temperature set by the controller is consistent with the temperature set by the mold, and the thermal factors affecting the mold can be measured and compensated directly. In general, the stability of mold temperature is better than the control of fluid temperature. In addition, mold temperature control in the production process control has a good repeatability.
The third is joint control. Joint control is a synthesis of the above methods. The fluid temperature and mold temperature can be controlled at the same time. In joint control, the position of the temperature sensor in the mold is very important. When installing a temperature sensor, the shape, structure, and position of the cooling channel must be considered. In addition, the temperature sensor should be placed in a position that plays a decisive role in the quality of the injection molded parts. There are many ways to connect one or more temperature molds to the controller of the injection molding machine. Digital interfaces such as RS485 are preferred in terms of operation, reliability and anti-jamming. The information between the control unit and the injection molding machine can be transmitted through software. Temperature molding machines can also be automatically controlled.
