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High resolution monitoring of an unsteady glass fibre drawing process

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Abstract

We report unsteady experimental results on the stability of fibre diameter in a continuous glass forming process, using two unique laser systems: a high resolution diffractometer and a backward phase Doppler interferometer. For draw ratios close to those used in the industry, the glass fibre diameter exhibits small fluctuations, which cannot be considered to be a result of draw resonance. It is shown that the amplitude of fibre diameter fluctuations decreases with increasing draw ratio, while the corresponding frequency increases with the temperature of the molten glass. Although the origin of these fluctuations is still not well understood, it appears that their frequency depends on the characteristics of the molten glass jet.

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Acknowledgments

The authors are grateful to ADEME (French Agency for the Environment and Energy Resources) and to Saint-Gobain Vetrotex for providing financial support and experimental facilities for this work.

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Authors and Affiliations

  1. CNRS UMR 6595-IUSTI, University de Provence, Technopôle de Château-Gombert, 13453, Marseille Cedex 13, France

    Fabrice Onofri & Anne Lenoble

  2. Institute of Mechanics, Bulgarian Academy of Sciences, 4, Acad. G. Bonchev Str., 1113, Sofia, Bulgaria

    Stefan Radev

  3. Saint-Gobain Recherche, 39 Quai Lucien Lefranc, B.P. 135, 93303, Aubervilliers Cedex, France

    Paul-Henri Guering

Authors
  1. Fabrice Onofri
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  2. Anne Lenoble
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  3. Stefan Radev
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  4. Paul-Henri Guering
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Correspondence to Fabrice Onofri.

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Onofri, F., Lenoble, A., Radev, S. et al. High resolution monitoring of an unsteady glass fibre drawing process. Exp Fluids 42, 601–610 (2007). https://doi.org/10.1007/s00348-007-0268-4

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  • DOI: https://doi.org/10.1007/s00348-007-0268-4

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