#AskGlaston Flat Tempering Series #2: Stress calculation

In the second episode of #AskGlaston Flat Tempering Series, we will talk about the new solution to estimate the stress level in glass – online.

The online stress calculation solution uses measured process data to calculate temperature and stress distribution in the quenching part of the tempering process.

The glass temperature after the furnace is taken as the initial temperature. Then, the cooling pressure and other chiller measured values are used to calculate the glass temperature and stress distribution and represent these in a physical model. The results allow estimating the stress level of each glass.

Knowing the stress level is important for monitoring the glass quality for safety. It also allows taking effective actions immediately if any variations on the end product stress level are detected.

Stress calculation is part of Glaston’s continuous development work of increasing the level of automation toward fully automated solutions.

Stay tuned for the next episode, where we will be talking about how convection system Vortex Pro makes mixed production effortless and efficient.

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About the author

Antti Aronen

An experienced researcher and engineer in the field of theoretical and experimental research, Antti is Glaston’s Senior Research Engineer in D&I. He is passionate about sharing his deep knowledge of glass products and processes with others. His PhD thesis was on glass heat treatment, and he continues to enthusiastically model the tempering process today. An innovator at heart, he has even registered some patents over the years. To counterbalance living at the top of the world in Finland, he spent nearly 4 years “down under” as a Research Fellow at the University of Sydney in Australia.

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