The Platform Screen Door(PSD)system for subways can effectively prevent safety hazards and energy consumption issues at waiting platforms,and is widely used in subway lines in major cities.The glass of subway platform screen doors is generally made of tempered glass.In the complex environment of subway operation,the surface of tempered glass may have problems such as mold growth,which affects the visual effect and overall aesthetics.This article focuses on the failure analysis of a batch of moldy PSD door glass in storage state,using SEM-EDS to observe the size,morphology,and elements of the"mold spots",and reproducing them through wet heat testing.The experimental results indicate that the main reason for the mold growth of the batch of subway screen door glass is due to long-term storage in marine atmospheric environment,which contains fluoride(F)ions and damages the SiO2 film layer on the glass surface.Under high temperature and high humidity environmental conditions,the precipitation of Na and K ions is accelerated,forming alkaline liquids on the surface,resulting in the corrosion of"mold spots"on the glass surface.
万方数据
维普
