Double-glazed panel manufacturing procedure uses spacer of thermoplastic resin film that is heated to stick glass panes together after evacuating air

摘要

The procedure consists of applying an inner spacing strip (14) of a structured thermoplastic resin film 10-15 mm wide between the panes of glass (10, 12) round the whole of their periphery. An overlapping seal (20) with a valve for connecting to a suction unit is then fitted round the edge of assembly and the air is extracted from between the panes of glass. The procedure consists of applying an inner spacing strip (14) of a structured thermoplastic resin film 10-15 mm wide between the panes of glass (10, 12) round the whole of their periphery. An overlapping seal (20) with a valve for connecting to a suction unit is then fitted round the edge of assembly and the air is extracted from between the panes of glass. The assembly is then heated to a temperature of about 130[deg]C to melt the thermoplastic resin film and convert it into an adhesive film that sticks the glass panes together. Once it has cooled the overlapping seal is removed, leaving a panel with two or more panes of glass with a vacuum between.