Research on Temperature Measure and Control Method in Mold-Temperature-Control Solidification

A temperature measure & control method was presented in terms of the mold-temperature-control solidification (MTCS) process and validated by experiments. The applied system collects the temperature data using the data collection module and 8 thermocouples placed in the mold. By comparing the measured data with the set temperature control thresholds, the system signals to switch the heating pipes or electromagnetic valves fixed on the channels. The flow control was implemented by developing the application based on the MCGS configuration software. Two experimental control cases whose cooling start thresholds are 500degC and 400degC respectively were done. The results indicate that in case 1, the simultaneous opening of the side and bottom channels lead to the shrinkage cavities in upper center of the part, and in case 2, the forming quality was promoted because solidification was orderly completed from bottom to top by means of reasonably controlling the opening time of the side channels.