Glass

• Molten glass gobs cut at approx. 1000°C; short-wavelength (1 μm) IR thermometers measure core gob temperature
• Optris PI 1M enables simultaneous measurement of multiple gobs in a single image
• The forming process runs above 500°C, and a rapid sensor response is critical
• Temperature is measured directly on the glass surface or indirectly via forming tools during parison shaping and mould finishing
• Post-forming: glass reheated, then gradually cooled in a tunnel for up to 30 minutes; temperature measurement controls the cooling as containers exit the heating zone

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• After the tin bath, the glass exits at approx. 60°C; an infrared camera in line-scan mode monitors the transition to the cooling zone
• Infrared cameras installed at multiple points across the cooling sections observe the full process
• Process temperature: 50°C to 600°C

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• PVB film temperature monitored using infrared thermometers
• Glass panes are preheated to melt the film and press layers together, preventing air pockets
• Temperature distribution monitored during transition to autoclaves
• Measurements used to adjust heating elements in the pre-lamination furnace for subsequent panes
• Process temperature: 50°C to 600°C

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• All glass types change emissivity with viewing angle; Low-E coatings require referencing from the uncoated underside
• Top-down system with reference pyrometer underneath for automatic emissivity correction
• Digitally Controlled Lens Protection (DCLP) eliminates additional air purging
• Glass area calculation included
• Pre-assembled for easy retrofit on tempering furnaces
• Automatic, distortion-insensitive scan line adjustment
• Process temperature: 50°C to 600°C

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• Flat glass heated above 600°C under continuous movement in a furnace
• Infrared camera monitors temperature distribution on the glass surface in line-scan mode during transport through the pretension zone
• Inhomogeneities compensated during air-cooled tempering
• Final quality depends on homogeneous thermal treatment throughout
• Process temperature: 50°C to 600°C

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