After a short break, we’re coming back to these #AskGlaston questions – you’ve kept asking and we’re going to keep answering. Today we’re dealing with the following two questions about glass tempering:
For this week’s questions, see our full video response below. Special thanks to our experienced engineers Ralph Staniforth from Glaston UK Ltd and Jarmo Pylkkönen from Glaston America, Inc. for sharing their knowledge.
As always, remember to learn, share and succeed!
This is called bi-stable glass. The problem can be solved quite easily by making changes to your recipe. You need to adjust the heating time to solve the problem. If you start getting a roller wave effect, then shorten the heating time accordingly.
With large glasses, pay special attention to the heating profile so that you get sufficient heat in the middle of the glass
It might be that the chimney is not functioning properly. Check the open and close functions, the actuator and the insulation of the chimney. Keep in mind, though, that the chimney has to be open when it comes to compressed convection furnaces to prevent other issues from occurring.
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