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MODELBASED PROCESS CONTROL
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60 Cycle 7th cycle ambient barrel barrel-temperature setting changed boundary conditions calculated cavity pressure changed from 290 Comparison between measured constant control system coolant coolant-temperature setting changed cooling rate cycle and coolant-temperature density desired part thickness disturbances versus cycle employed filling stage gain setting gain-scheduling gap-wise direction given in Fig HDPE hydraulic packing pressure Injection Molding injection-molding process Lexan M. R. Kamal mass flow rate material is PC material is PMMA measured and predicted measured thickness mold plate mold temperature mold-wall temperature molding process node noted on-line one-dimensional open-loop Plastic Engrs Plot of operator-introduced polymer melt polystyrene post-filling stage predicted thickness predictive model present investigation process control processing conditions given processing parameters PSI/cm regression analysis RMSDEV Schematic diagram semi-crystalline shear rate shown in Fig speed of 25 step change thermal conductivity thermal-mechanical thermocouple Tm and Tw tool steel viscosity volumetric shrinkage