Forming and Assembly Process for Two or More Curved Glass Panes Having Different Physical-chemical Properties and/or Different Thickness

摘要

A manufacturing process for a laminate of two curved glass panes having different physical-chemical properties and/or different thicknesses, suitable for windscreens and other safety glass items for motor vehicles with an intermediate sheet of plastics material comprises the consecutive steps of loading the glass panes on a rigid horizontal mould with concave surface facing upwards, simultaneously curving said two glass panes in a furnace, trimming them to shape, placing a sheet of plastics material between the matched glass panes, and bonding the assembly in an autoclave under special temperature and pressure conditions, the glass pane with the smaller degree of curvature being placed in direct contact with the mould during the forming phase, and, during the assembly phase, the glass pane originally placed in direct contact with the mould form only the inner part, that is the concave part of the finished product.