Method for measuring the sagging of a glass panel

A method for measuring the sagging of a glass panel in the process of bending the glass panel on a ring mould. The method includes measuring the sagging at a glass panel's measuring point and the measurement data is applied to control progress of the bending process, especially heating of the g...

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Bibliographic Details
Main Author JANHUNEN TOIVO
Format Patent
LanguageEnglish
Published 28.10.2008
Subjects
CHEMISTRY
GLASS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
METALLURGY
MINERAL OR SLAG WOOL
PHYSICS
TESTING
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Summary:A method for measuring the sagging of a glass panel in the process of bending the glass panel on a ring mould. The method includes measuring the sagging at a glass panel's measuring point and the measurement data is applied to control progress of the bending process, especially heating of the glass panel or abortion of the bending process. A reference plane stationary with respect to the ring mould is established, a distance gauge is used for measuring a distance between the reference plane and the distance gauge, and a distance gauge is used for measuring a distance between the glass panel's measuring point and the distance gauge. The glass panel's sagging is determined by comparing the distance between the reference plane and the distance gauge to the distance between the glass panel's measuring point and the distance gauge.
Bibliography:Application Number: US20050632415