By Charles H. Drummond III
This publication is a cutting-edge selection of contemporary papers on glass difficulties as provided on the 68th convention on Glass difficulties on the Ohio kingdom college. subject matters contain production, glass melters, combustion, refractories, and new developments.Content:
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Extra info for 68th Conference on Glass Problems, Volume 29
While this data was acquired, the equalizing zone thermocouples indicated stable behavior. CONTAINER DEFECTS AND GOB TEMPERATURE The presence of container defects was compared to gob temperature on a continuous job, amber glass container line with PID control. It was observed that changes as small as a few degrees in gob temperature impacted the presence of seal surface and split finish defects. Figure 5 shows the normalized quantity of containers with either defect compared to the gob temperature.
Drummond, III Copyright © 2008 The American Ceramic Society GOB TEMPERATURE CONTROL Brent Illingworth and Jim Knope BASF Catalysts LLC Portland, Oregon. USA Steve Nixon and Alan White Advanced Control Solutions, Inc. Sylvania. Ohio. USA Julian Railey Saint-Gobain Containers, Inc. Muncie, Indiana, USA ABSTRACT Significant quality and throughput improvement to the glass container manufacturing process has been demonstrated by a new control method that directly controls the gob temperature. The new temperature control method combines ACSI's predictive-adaptive model based control system with BASF's Exactus* advanced high-speed optical gob temperature sensor.
Peak picking' systems have been available in measurement systems for some time. When a high temperature occurs, the output will increase to a value indicating the maximum temperature measured by the instrument, commonly called the 'peak temperature'. Conventional peak picking instruments can only output the highest value measured; for gobs, the highest value measured is often not desirable. In both Figure 2 and Figure 3 the leading and trailing edge of the gob data stream show values significantly greater than is measured in the middle of the gob data.
68th Conference on Glass Problems, Volume 29 by Charles H. Drummond III