Infrared Glass Heating

Applications of quartz infrared emitters in the glass industry:

● Heating

● Drying

● Coating

● Laminating

Heat is necessary for many process stages in glass processing. In more and more cases, Infrared heating technology provides an effective and efficient solution to heating problems in these process stages.

Preheating of Laminated Glass Process

The laminated glass must go through a few heating phases during production and processing, which infrared emitters can efficiently complete. Two of the key pieces of equipment for deep processing laminated glass are the lamination machine and the autoclave. The Glass absorbs only around 25% of infrared light at a wavelength of 2.4um, but PVB foils can absorb up to 90% of the same light. It implies that the plastic foil may absorb the energy effectively. The optimal wavelength for laminated glass applications is medium-wave infrared light. Usually, a gold-plated double-tube medium-wave infrared radiator with a length of about 3 meters and a tube section of 33*15mm is used to obtain better mechanical properties.

Glass cutting machine

Not only is a cutting blade necessary for laminated glass cutting, but also an effective heating method to complete the quick softening of the intermediate plastic foil.

The medium wave infrared emitter with a quick reaction and a gold reflector warms the foil just in the small fracture caused by the glass shattering. Then the foils can be readily separated by tugging or cutting them apart. Infrared emitters are typically twin tubes with just one heating channel and 30 wide-angle directed heating for focused directional heating. Thereby, rapid melting of the laminated is achieved.

Drying The Paint and Coating on Glass

The broadest variety of coatings on glass are dried consistently by infrared emitters, whether they are screen prints on automobile windscreens, coatings on mirror backs, or paint on decorating glass. The drying of the lacquer or coating is sped up by the penetration of infrared radiation into the material, which also prevents skin- or blister development on the surface. YRF twin tubes can be made up to 6 meters long and as wide as the mirror-making line can go. Excellent surface quality is the end product. Time, space, and energy are saved as compared to warm air drying.