A kind of temperable three-silver low-e glass and its tempering process

Abstract

The invention provides a temperable three-silver-layer low-E glass and a tempering process thereof. The glass comprises a glass substrate and the following layers laminated on the glass substrate from top to bottom: a first dielectric film layer, a first barrier layer, a first silver layer, a second barrier layer, a second dielectric film layer, a third barrier layer, a second silver layer, a fourth barrier layer, a third dielectric film layer, a fifth barrier layer, a third silver layer, a sixth barrier layer and a fourth dielectric film layer. The glass film layers has good heat resistance at high temperature; the tempering process employs low-temperature long-time heating, thereby effectively preventing the film layers from damage by high temperature; and the tempered glass has same transmissivity, reflectivity and low radiance as untempered glass and has the characteristics of high strength and good mechanical properties unique to tempered glass.

Description

technical field [0001] The invention relates to a temperable triple-silver LOW-E glass and a tempering process thereof. Background technique [0002] With the improvement of awareness of building energy conservation, countries around the world have introduced a series of policies on building energy consumption, which promotes the rapid development of low-emissivity coated glass, and the application of LOW-E glass is becoming more and more popular. During the development of Low-E glass for nearly 30 years, from the initial single-silver Low-E glass, it has developed into double-silver Low-E glass. In recent years, three-silver Low-E glass products have been developed. -E glass has a high visible light transmittance, which can ensure sufficient natural lighting indoors, and has a lower solar infrared transmittance and lower heat transfer coefficient. Construction Glass. Sanyin LOW-E glass is tempered and combined with sheets to form a hollow product, which can maintain a mor...

AI Technical Summary

Problems solved by technology

[0006] Three-silver Low-E glass has different characteristics from ordinary glass in heat transfer during the tempering process, so there are also different requirements for equipment and operations during the tempering process. Due to the existence of the Low-E film layer, the heating on both sides of the glass is asymmetrical. The tempering process is difficult to control

There may be a series of problems such as large tempering deformation, LOW-E tempered glass roller print (white fog), excessive curvature (upward warping or downhill), uneven fragmentation, color difference, edge film oxidation, etc.

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