An Effective Way Of Determining Annealing Cycles

Most bottle makers determine annealing quality by measuring the optical retardation in the article base, very near the transition between base and wall, by looking through the bottle or jar neck. This article examines the problems involved in existing methods, such as the Adams and Williamson's Method and the Corning Glass Works Method. It proposed instead a method that considers the stresses at the boundary of the article base, which takes account of factors such as variation in the glass thickness. A comparison is made between the results obtained on an annealing lehr in operation and the thermal cycle calculated with the new method.

Author
J M Squilbin And M Moulart
Origin
Cnud, Belgium
Journal Title
Gmpa 2/98 85-90
Sector
Container glass
Class
C 1144

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An Effective Way Of Determining Annealing Cycles
Gmpa 2/98 85-90
C 1144
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