Study On The Supporting Performance Of Tempered Vacuum Glass

Tempered vacuum glass is a new type of high-tech energy-saving product.Its production process is relatively complex,and it is widely used in buildings with high energy-saving requirements.Tempered vacuum glass has good performance of thermal insulation,sound insulation and noise reduction,not easy to condense,fully tempered,light and thin structure,any environment,and long life.However,due to the high difficulty of tempered vacuum glass manufacturing technology,the theoretical research and production technology carried out at home and abroad are still in its infancy.This paper mainly studies the mechanical properties of the support of tempered vacuum glass,and numerically analyzes the shape,arrangement,spacing of supports,and mechanical characteristics when the supports are absent.The laws of stress and displacement of tempered vacuum glass composed of tempered glass with the same thickness are compared,which provides a theoretical basis for the optimal design of vacuum glass structure.Aiming at the optimization of the support structure of tempered vacuum glass,the method of combining experimental test and finite element simulation is used to study its mechanical properties.The following conclusions are drawn:(1)By comparing the effects of Sn-Ag-Cu alloy lead-free solder,low melting point glass powder solder and PTFE solder on the mechanical properties of tempered vacuum glass,it is concluded that Sn-Ag-Cu alloy lead-free solder is the best.(2)Comparative analysis of the mechanical properties of the support of 5+V+5thick tempered vacuum glass in different shapes(cylindrical,annular,spherical)shows that the best support is when the support is cylindrical.(3)When the tempered vacuum glass is 3.2+V+3.2,it is recommended to use the square arrangement with the support spacing of 20 mm first,and then use the equilateral triangle arrangement with the support spacing of 20 mm.(4)When the tempered vacuum glass is 4+V+4,it is recommended to use a square arrangement with a support spacing of 50 mm in production,followed by an equilateral triangle with a support spacing of 60 mm.(5)When the tempered vacuum glass is 5+V+5,it is recommended to use the equilateral triangle arrangement with the support spacing of 60 mm in production,and then use the square arrangement with the support spacing of 50 mm.(6)When the tempered vacuum glass is 6+V+6,it is recommended to use a square arrangement with a support spacing of 60 mm in production,followed by an equilateral triangle arrangement with a support spacing of 60 mm.(7)Tempered vacuum glass with a combination of different tempered glass thicknesses has less stress change,but can reduce the self-weight of the tempered vacuum glass.It is recommended to place the thicker glass on the facade of doors and windows.(8)When the support position of tempered glass is missing(displaced)under the optimal arrangement,the maximum displacement and stress caused by the missing(displacement)in the middle of the support are larger,followed by the missing(displacement)at the edge,and the Absence(shift)has minimal effect.