With the development of science and technology, new materials, new processes and new technologies are constantly emerging, and the quality of vacuum glass itself will continue to increase. Production processes and equipment will also be constantly updated, production will continue to expand, and costs will continue to decrease. Combination of vacuum glass varieties will continue to increase. Studies at home and abroad show that, for most areas, the heat transfer coefficient of the building envelope structure should be at least 1Wm-2k-1. In the past, 37 brick walls with a total thickness of approximately 390mm were used extensively (with mortar added). The heat transfer coefficient of about 1.7 Wm-2k-1, the total thickness of about 410mm 37 hollow brick (outer thickened mortar) heat transfer coefficient is close to 1 Wm-2k-1. The heat transfer coefficient of various new types of walls has been reduced to between 0.4 and 0.8 Wm-2k-1. The doors and windows are the major energy consumers in the building envelope structure. The heat transfer coefficient of a single piece of 5mm white glass is about 6.1 Wm-2k-1, which is more than 6 times worse than that of a wall. Imagewise, the energy consumption of each non-energy-saving window is equivalent to tens of watts. Long lights consume energy for many years. More than 30 years ago, after the first oil crisis, foreign scientists proposed to develop glass windows with a heat transfer coefficient of less than 1, called Superwindows. The advent of vacuum glass makes this idea an easy move. The appearance of double vacuum glass will also allow us to enter the stage of “super vacuum glass window”.
The tempered vacuum glass is an upgraded version of the vacuum glass. It not only inherits all the characteristics of the vacuum glass but also has a great improvement in performance. Its main characteristic is that the glass used is a fully tempered safety glass, which can be widely used. In the field of buildings and doors and windows, insulation cabinets (such as: display cabinets, refrigerators) and other areas that need transparent insulation materials.