How to control the process temperature of injection molding machine cylinder?
The process temperature of the machine barrel plasticized material should be controlled, which is mainly determined by the properties of the material used for injection products and the complexity of the plastic parts.Control the temperature within a: fixed range to ensure the normal and smooth production of injection parts.At present, most of the injection molding machines used in various plastics factories use resistance heaters to heat the cylinder, which is controlled by thermocouple and temperature millivolt meter.If the process temperature exceeds the set range, the resistance heating power is automatically cut off and the fan or cooling water is started to cool down.If the process temperature is lower than the set process temperature, the resistance heating power is on and the cooling system power is off.
At present, the domestic injection molding machine manufacturer (such as dalian huada machinery co., LTD.) manufacturing injection molding machine, has used the computer control machine cylinder section process temperature.The process temperature of each section of the cylinder is stored in the computer in the form of data. According to the operating instructions of the computer control system, the corresponding key can be pressed during production to display the process temperature of the cylinder.Turn on the heating power switch and start the heater. When each section of the standby tube reaches the required temperature, the green light will be on, indicating that the heating of the cylinder has reached the required temperature.