FIELD: chemistry.
SUBSTANCE: invention relates to a method and a device for annealing sheet glass. A sheet of glass, heated to a temperature higher than the deformation temperature, is placed on a ring-shaped bending mould. The sheet of glass is lifted by a lifting element and separated from the bending mould. An area of glass, which contacts with the lifting element, is located at least 50 mm inside from the edge of the glass sheet. The area which is lifted is cooled to a temperature lower than the deformation temperature before the glass sheet reaches the deformation temperature, and after this glass sheet is lifted by the lifting element.
EFFECT: reduction of an internal stretching tension, which arises on the glass edges.
16 cl, 2 tbl, 14 dwg
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