Method and apparatus for laminating glass sheets
AssigneeTamglass Engineering Oy
InventorEsko Lehto
Life of this patent
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Abstract
The invention relates to a method and apparatus for laminating glass sheets. A sandwich structure to be laminated is preheated with radiation heat to a temperature of about 30.degree. C.-45.degree. C. This is followed by a first pressing operation between a pair of rolls (1). Next, the sandwich structure is heated by two-sided hot-air blasting (4, 5) for raising the temperature of glass and film to a temperature range of 60.degree. C.-85.degree. C. This is followed by a pressing operation between a second pair of press rolls.
Claims4
A method for laminating glass sheets, in which method a plastic film is laid between glass sheets and a resulting sandwich structure is carried through a first pair of press rolls (1), followed by heating the snadwich element such that the glass and film have a temperature which rises to the temperature range of 60.degree. C.-85.degree. C. and carrying the heated sandwich structure through a second pair of press rolls (2), characterized in that upstream of the first pressing the snadwich structure is preheated with radiation heat (7, 8) and between the pressing operations the sandwich structure is heated by means of two-sided hot-air blasting (4, 5).
Dependencies are inferred from the claim text.