Riku Färm
The fourth episode of #AskGlaston Flat Tempering Series covers the safety; how to verify that all glasses are tempered.
In glass tempering, it’s essential to ensure that every glass leaving the factory is properly tempered. Currently, standards require tempering a small test piece once every hour or with every product change (EN standard requires 1 test per day, recommended testing interval once per hour and with every product change). This means that the majority of produced glasses are actully not tested at all.
Glaston’s Online Stress Calculation system makes it possible to have measured results for all produced glasses, significantly increasing safety. Online Stress Calculation works by using real-time process data to calculate surface stress and middle pane tension in all produced glasses.
This ensures accurate tempering results and allows manufacturers to define their own acceptable stress levels. The system also estimates expected fragmentation, supporting compliance with safety standards.
By identifying the correct tempering level, Online Stress Calculation helps optimize energy use, reduce costs, and improve overall process efficiency. Its modular design allows easy upgrades to existing machines, and Glaston’s support network ensures long-term success.
In short, Online Stress Calculation provides a reliable, data-driven way to verify glass tempering quality and maintain high production standards.
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