关键词: 钢化玻璃;应力分布;标准偏差;不均匀度

Abstract: Stress distribution non-uniformity of tempered glass has an important influence for glass tempering quality and safety performance,but stress distribution non-uniformity can not be eliminated for wind-cooling physically tempered glass,so it needs the objective evaluation to its stress distribution non-uniformity.Based on the stress test results of wind-cooling physically tempered glass with different process parameters,the stress distribution characteristics were analyzed,and the stress distribution non-uniformity were evaluated by standard deviation.The study results show that,as a whole,stress distribution characteristics of wind-cooling physically tempered glass are greater near the edge,and smaller in intermediate section,but stress distribution of any tempered glass has different form,and no rules following.The values of stress distribution non-uniformity of tempered glass commonly are in the range from 0 to 0.05,and standard deviation is suggested to judge stress distribution non-uniformity of wind-cooling physically tempered glass,which value should not be more than 0.05.

Key words: tempered glass;stress distribution;standard deviation;non-uniformity