Process considerations for the application of PLC control to compression molders

Abstract

In recent years, several studies have been undertaken to further understand and define the process of compression molding. As critical process parameters are defined, engineers become responsible for implementing new control technology capable of monitoring and controlling these new found parameters. Process parameters being controlled by today's programmable logic controllers (PLCs) are critical to part quality. Closing velocity, densification pressure, curing time and pressure, and clamp control during in mold coating applications are vital. An in depth look at these parameters, how they are controlled by the PLC, and how to interface this new control to the operator are presented for consideration.<>