Read e-book online 69th Conference on Glass Problems: Ceramic Engineering and PDF

By Charles H. Drummond III

ISBN-10: 0470457511

ISBN-13: 9780470457511

ISBN-10: 0470529016

ISBN-13: 9780470529010

Remain up to date with this choice of papers offered on the 69th convention on Glass difficulties on the Ohio kingdom college. issues contain melting and molding, refractories, and environmental concerns and new products.Content:

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Read Online or Download 69th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 30, Issue 1 PDF

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Additional info for 69th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 30, Issue 1

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Pp. 232-245 3. : Glustechnische Fabrikutionsfehler. 3rd edition (1980) Springer Verlag, Berlin, Heidelberg, New York , Chapter 6 Schlieren pp. 309-357. 4. : Die Reaktionen beim Zusammenschmelzen von Glassatzen. Z. Anorg. Allg. Chem. 193 (1930) pp. 245-269 5. : Redox conditions during melting of' the batch. Glastech. Ber. Glass Sci. , 68 (1995) no. 3, pp. 81-83 6. : Foaming of glass melts. PhD thesis, Eindhoven University of Technology, June 1998 69th Conference on Glass Problems . 27 Fining of Glass Melts: What We Know about Fining Processes Today 7.

The used glass system is alkali free alumo-earthalkali-borosilicates. This glass is characterized by high content of boric acid and extreme low alkali content. The melting process of this type of glass is connected with vast technological problems. The production in Pt crucibles is only known for charge production. The melting in oxyfuel heated is connected with numerous problems like evaporation of B203, necessary high temperatures, chemical aggressiveness against the refractory material, problematic refining and strong crystallization tendency.

3so2 (gas) + 2Na20 (glass) -+ 2Na2S04(crystal condensates) + So (condensate) (20) Fast cooling will freeze-in the bubbles, since diffusion of gases from the bubbles into the molten glass will slow down at temperatures below about 1250 OC. Video recording of refining - 26 69th Conference on Glass Problems Fining of Glass Melts: What We Know about Fining Processes Today secondary fining processes in float glass melts prepared on laboratory scale show that bubbles are reabsorbed by the melt between about 1325 and 1275 "C.

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69th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 30, Issue 1 by Charles H. Drummond III


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