Thickness gauge for the float-process hot zone.
The System is intended for the non-contact fully automated control of the moving glass
ribbon thickness at the beginning of the annealing lehr in five points, located across ribbon. The System allows to operate the technological process of the glass ribbon forming with high efficiency and low delay time.
The System based on the novel principles of the tandem low-coherence interferometry. The scheme of the System is patented (patent RU2307318).
Optical heads are mounted on the lehr roof. Heads can be established at the begininng (3-5 roll) of the lehr. In this case time of reaction does not exceed several minutes.
All channels work in parallel. Presence of 5 points distributed across a ribbon, allows to completely understand a profile of a ribbon and to operate it in a real time.
Presence of the continuous control glass thickness directly behind a formation zone allows to noticeably increase an efficiency of the technological process managing:
- the time of transitions between various thickness considerably decreases;
- the polythickness decreases (the glass quality improves);
- the glass mass is economized (the system allows to work near of the bottom border of the admission)
- the comfort of the float-bath operators working raises.
The System allows operators “to see” the glass in real-time.
The System does not demand cooling and service. The arrangement of heads on the lehr roof allows to completely secure the System in the case of non-staff situations on a line (breakage, etc.).
The System is easily mounted on a working line.
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Datasheets.
Publications.
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