Definition and function

Glass laminated furnace is a piece of equipment used to produce laminated glass. Laminated glass is a composite glass composed of two or more pieces of glass with one or more layers of organic polymer interlayer sandwiched between them. After high temperature and high pressure treatment, the glass and the interlayer are permanently bonded into one body. The main function of the glass laminated furnace is to promote the close combination of glass and interlayer film through heating, pressure and other processes to produce high-quality laminated glass products.

Working principle

Generally, the temperature inside the laminating furnace is raised through electric heating or other heating methods (such as thermal oil heating). When the temperature reaches the softening temperature of the intermediate film (such as PVB film, whose melting point is around 130 - 140°C), use the pressure system to apply appropriate pressure. The pressure allows the softened interlayer to evenly fill the gaps between the glasses and exclude air. Under the action of continuous temperature and pressure, the interlayer film and the glass are closely adhered, and then through the cooling stage, the interlayer film is solidified, and finally the laminated glass is formed.