The thermal stress of glass curtain wall

Glass breakage caused by thermal stress Thermal stress is an important cause of glass curtain wall breakage. Glass curtain wall is heated for many reasons, but the main heat source is the sun, when the sun on the surface of the glass curtain wall, glass is heated, if heated evenly, glass and glass of edge the central part of the uniform expansion at the same time, but if the uneven edge and inside the glass is heated, inside the glass will produce tensile stress, when the glass edge has broken mark or tiny crack, These defects are easily affected by thermal stress. With the increase of temperature difference, thermal stress will gradually increase the crack and finally lead to glass breakage. The solution is to finish the edge of the glass first, using fine grinding edge or polishing edge to reduce the existence of small cracks; Secondly, the glass is tempered to enhance the glass resistance to temperature changes; The third is in the process of glass processing, handling, installation, the protection of glass must be properly, pay attention not to the edge of the glass and other hard object impact, friction, strictly abide by the operation procedures, especially during the installation process, if the framework inappropriate