By Charles H. Drummond III
This e-book is a cutting-edge choice of fresh papers on glass difficulties as offered on the 68th convention on Glass difficulties on the Ohio kingdom college. themes contain production, glass melters, combustion, refractories, and new developments.Content:
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Extra resources for 68th Conference on Glass Problems, Volume 29
30 · 68th Conference on Glass Problems Gob Temperature Control Table I. 54 hrs Improved process quality Significant reduction in lost production Improved performance after a job change volume caused by job changes Improved gob weight consistency Gob Temperature Stability 50% less time required to achieve stability Mödöl Si*öd Control öl Gob TAmparatutt I E 0 Q :: ^= _J -PID Control Model Bä&ed Contiöl of M34* Flow Ternpöralur* Date Figure 9: Gob temperature variation for different control methods Figure 9 displays the gob temperature error on one container line during a 16-day period with the following configurations: 1) PID control 2) Model based control with the mass flow temperature as the process variable 3) Model based control with the gob temperature as the process variable 68th Conference on Glass Problems · 31 Gob Temperature Control The gob temperature error is defined as the difference between the desired and actual gob temperature.
Löryy R ■ Rtfltctfd Enwgy T ■ TrBiumrttcd Energy E * Emitted Erwgy R+TtE-1 Fig. 3 Sources of Infrared Energy 40 · 68th Conference on Glass Problems Applications and Challenges for Infrared Temperature Measurement in Glass Manufacturing INFRARED TEMPERATURE MEASUREMENT AND GLASS Glass is a partially transparent target. " However, glass is not transparent at all wavelengths. Our eyes perceive radiation in the wavelengths 400 to 700nm. In this range glass is almost completelytransparent. However, at wavelengths beyond ~5 urn glass is almost completely opaque.
68th Conference on Glass Problems · 51 Industrial Experiences with a New Surface Treatment Technology CONTAINER GLASS In container glass several industrial tests has been conducted. Diagram 7 shows a result using bulk material of AlClj. impact strength of container glass: 1 s l production test untreated A1CI3 Comparison of the impact strength (AGR) of 720 ml wide neck container glass; AICI3 treatment in running production Diagram 7: Bulk AICI3 in container glass production For a strong treatment with a high chemical resistance it could be necessary to wash the glass due to a fog of NaCl which is created on the surface.
68th Conference on Glass Problems, Volume 29 by Charles H. Drummond III