Cavity temperature control in plastic injection molding

  title={Cavity temperature control in plastic injection molding},
  author={Rickey Dubay and Bambang Pramujati and J. Hernandez},
  journal={IEEE International Conference Mechatronics and Automation, 2005},
  pages={911-916 Vol. 2}
A new approach for controlling part cooling in plastic injection molding is developed using a PI controller and coolant flowrate as the manipulated variable. The method uses an average part surface temperature within the mold as the setpoint parameter. A mechatronic system was developed for providing variable coolant flowrates. The control strategy was simulated using plant models, and then implemented and tested on a 50 tonne injection molding machine with good closed loop performance. 


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