讲一讲热流道
Is the stability of temperature control box affected by temperature measurement? Hot runner temperature control box is used to control the internal temperature balance of the hot runner system controller, it mainly through the watch core intelligent computer chip (MCU) to detect the temperature of the hot runner, and then through the intelligent computer internal data processing, output the appropriate proportion of current value, so as to achieve the purpose of temperature control, the accuracy and stability of temperature control depends on the following important factors:
1) Temperature measurement: sampling cycle parameters, data filtering processing to determine the temperature, measurement circuit temperature compensation to determine the temperature measurement accuracy;
2) PID control: reflects the proportion of output current through regulation and control, the relevant parameters are proportional segment, integral time and differential time;
3) PIDD control: through the phase Angle control, the relevant parameters are proportional segment, integral time, differential time;
4) Automatic regulation: By analyzing the capacitance of the heater and the thermal constant of the mold, it provides the function of its dominant factor (with latent heat and heat dissipation it helps to accurately control the temperature regardless of how the environment changes.