TEMPERING FURNACE FOR A GLASS SHEET AND A METHOD FOR HEATING A GLASS SHEET FOR TEMPERING

TEMPERING FURNACE FOR A GLASS SHEET AND A METHOD FOR HEATING A GLASS SHEET FOR TEMPERING

A tempering furnace for a glass sheet has a conveyor for the glass sheet, and first convection blow means over the conveyor to heat the glass sheet by hot air jets blown onto its top surface. With second convection blow means, pressurized air external to the tempering furnace may be led to second bl...

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Hauptverfasser: KETO, Kyösti, VEHMAS, Jukka
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
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creator KETO, Kyösti
VEHMAS, Jukka
description A tempering furnace for a glass sheet has a conveyor for the glass sheet, and first convection blow means over the conveyor to heat the glass sheet by hot air jets blown onto its top surface. With second convection blow means, pressurized air external to the tempering furnace may be led to second blow nozzles from which air is discharged as jets towards the bottom surface of the glass sheet. The heating effect of the air jets of the first convection blow means onto the glass sheet is adjustable by adjusting the feeding of electric current to electric elements inside blow enclosures, and the heating effect onto the glass sheet of the jets discharging from the second blow nozzles is adjustable by adjusting the blow pressure of feed pipes.
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subjects CHEMISTRY
GLASS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
title TEMPERING FURNACE FOR A GLASS SHEET AND A METHOD FOR HEATING A GLASS SHEET FOR TEMPERING
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