提高化学钢化效率一直是玻璃强化的一个重要研究课题,在熔盐中添加加速剂是提高化学钢化效率的方法之一.本文以国产高铝硅酸盐玻璃为研究对象,对比研究了不同熔盐添加剂单独及混合作用下对玻璃钢化后表面压应力及应力层深度的影响.研究表明,在常用的几种熔盐添加剂中,KOH对玻璃的表面压应力及应力层深度的提高作用最明显;在硝酸钾熔盐中同时加入一定量的KOH、K2CO3及KCl作为熔盐添加剂,可大幅度提高玻璃的表面压应力,离子交换后玻璃的表面应力可达950 MPa以上.%Improving the efficiency of chemical strengthening has been an important research topic of glass strengthening.Addition of catalysts in molten salts is one of the methods to improve the efficiency.In this work,the Panda-King glass with high content of aluminum were used,and the influence of different molten salt additives on the surface compressive stress and the depth of stress layer were studied and compared.Results show that KOH has the most marked effects to improve the surface compressive stress and the depth of the stress layer of the glasses,when compared to other molten salt additives that commonly used.Also,the addition of KOH,K2CO3and KCl to molten salts can greatly improve the surface compressive stress of the glass and,a value up to more than 950 MPa is reached in this molten salt.
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