Contactless transport of flat glass

The contactless transport of flat glass is particularly important in the production of thin glass, e.g. display glass with thicknesses of 0.35-1.1mm. Due to the extremely high demands on the surface quality, microcracks and scratches on the glass surface must be avoided. Especially through transport contacts (rolling) of the glass after melting, the smallest damages occur on the underside of the glass, which can only be removed through complex grinding and polishing work. Due to the very low glass thickness, this work is time-consuming and expensive, and the damage generates high reject rates depending on its type and size (depth).

With the help of the research project, it was possible to prove that contactless transport can also be realised in the hot area using ultrasonic oscillators, as the glass is thereby placed in a state of suspension.

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