Optical Real-Time Castability Evaluation for High-Throughput Glass Melting

Shravya Gogula; Hansjörg Bornhöft; Lothar Wondraczek; Marek Sierka; Andreas Diegeler; Ralf Müller; Joachim Deubener

doi:10.52825/glass-europe.v2i.1359

Authors

Shravya Gogula Clausthal University of Technology https://orcid.org/0009-0003-7283-096X
Hansjörg Bornhöft Clausthal University of Technology https://orcid.org/0009-0006-8790-4046
Lothar Wondraczek Friedrich Schiller University Jena https://orcid.org/0000-0002-0747-3076
Marek Sierka Friedrich Schiller University Jena https://orcid.org/0000-0001-8153-3682
Andreas Diegeler Fraunhofer Institute for Silicate Research https://orcid.org/0009-0003-0632-302X
Ralf Müller Clausthal University of Technology https://orcid.org/0000-0002-1044-2035
Joachim Deubener Clausthal University of Technology https://orcid.org/0000-0002-3474-7490

DOI:

https://doi.org/10.52825/glass-europe.v2i.1359

Keywords:

Optical Real-Time Castability Check, High-Throughput Melting, Image Analysis

Abstract

A novel optical real-time method for evaluating the castability of glass forming melts for laboratory furnaces is presented. The method is based on the analysis of top view images of the melt surface inside the crucible during melting after being subjected to a small mechanical impulse. In this way, the melt surface is excited to oscillate. The difference in contrast between two images taken in quick succession scales with the viscosity, with a larger difference occurring at lower viscosities. The method is designed as an instrument for the in-line evaluation of the castability for a high-throughput glass melting system as part of the joint project “GlasDigital” in the framework of the German Platform Material Digital initiative but is applicable to other laboratory furnaces as well.

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References

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Optical Real-Time Castability Evaluation for High-Throughput Glass Melting

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