PRODUCTION METHOD FOR GLASS SHEETS - NIPPON ELECTRIC GLASS CO

Title:

PRODUCTION METHOD FOR GLASS SHEETS

Document Type and Number:

WIPO Patent Application WO/2020/170749

Kind Code:

A1

Abstract:

A production method for glass sheets that comprises a shaping step for performing sheet-draw shaping in which a roller group that includes an annealing roller 7 that is connected to a motor 6 is used to draw a glass ribbon G. A waveform acquisition step and a spectral analysis step are executed during the shaping step. The waveform acquisition step is for acquiring a waveform 9 that is obtained on the basis of changes in the torque of the motor 6 and/or a waveform 10 that is obtained on the basis of changes in rotational speed, and the spectral analysis step is for obtaining frequency spectra 11, 12 from the waveforms 9, 10 acquired in the waveform acquisition step.

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Inventors:

MOCHIZUKI HIROSHI (JP)

Application Number:

PCT/JP2020/003353

Publication Date:

August 27, 2020

Filing Date:

January 30, 2020

Export Citation:

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Assignee:

NIPPON ELECTRIC GLASS CO (JP)

International Classes:

C03B17/06

Foreign References:

JP2016030714A	2016-03-07
JP2017513797A	2017-06-01
JP2016102039A	2016-06-02