Cold bending of a laminated glazing
AssigneeSaint-Gobain Glass France
InventorsFabien Levasseur, Romain Decourcelle, Christophe Swiderski
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for the preparation of bent glazed modules comprising a metal framework and a panel comprising a laminated glazing comprising glass substrates separated by an interlayer made of polymer material, the panel being bent, after the laminated glazing has been assembled, by a force which causes it to take the shape of the metal framework and then held in this shape by a holding means, the bending being carried out while the interlayer is at a temperature between 30 and 80° C. The invention reduces the loads necessary for the bending and also the shear stresses between the interlayer made of polymer material and the glass substrates, which reduces the risks of delamination.
Claims16
A process for preparing a bent glazed module comprising a metal framework and a twisted glass panel comprising a laminated glazing comprising twisted glass substrates separated by an interlayer made of polymer material, the method comprising:
- bending a panel comprising a laminated glazing comprising glass substrates separated by an interlayer made of polymer material simultaneously along two different directions by a force which causes it to take a shape of the metal framework, thereby providing the twisted glass panel;
- and then,
- holding the panel in the shape with a holder, thereby providing the bent glazed module,
- wherein the bending is carried out while the interlayer is at a temperature between 30 and 80° C.
Dependencies are inferred from the claim text.