Furnace and method of heating coated glass sheets

A furnace (12) and a method for heating coated glass sheets by radiant heating also provides convective heating by hot air jets that entrain hot air within the furnace so the combined flow of hot air heats an upwardly facing coated glass surface in addition to the radiant heating, and a control (89)...

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Bibliographische Detailangaben
Hauptverfasser:	LEWANDOWSKI, TROY R, SHETTERLY, DONIVAN M
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	BLASTING CHEMISTRY DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL GLASS HEATING KILNS LIGHTING MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES MECHANICAL ENGINEERING METALLURGY MINERAL OR SLAG WOOL OPEN SINTERING OR LIKE APPARATUS OVENS RETORTS WEAPONS
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Beschreibung
Zusammenfassung:	A furnace (12) and a method for heating coated glass sheets by radiant heating also provides convective heating by hot air jets that entrain hot air within the furnace so the combined flow of hot air heats an upwardly facing coated glass surface in addition to the radiant heating, and a control (89) increases this convective heating during the conveyance to balance the heating and the resultant temperature of the upwardly facing coated surface and a downwardly facing uncoated surface of each conveyed glass sheet. A hot air distributing system (86) includes an array (90) of hot air distributors (92) constructed to effectively supply the convective heating. The hot air distributors (92) have heat exchangers (96) that heat pressurized air that provides the hot air jets. The furnace (12) conveys the glass sheets either in an oscillating manner or a continuous one direction manner during the heating.