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Summary Application Number: 200510017489.4 Application date: 2005.04.02 name: Single piece fireproof glass Public (announcement) number: CN1840495 Public (announcement) day: 2006.10.04 Main classification number: C03C3/087(2006.01)I The original application number of the division: Classification number: C03C3/087(2006.01)I; C03C4/00(2006.01)I Award day: priority: Application (patent) person: China Luoyang Float Glass Group Co., Ltd. address: No.9 Tanggong Middle Road, Xigong District, Luoyang City, Henan Province, China Invention (design) person: Zhang Chi; Jiang Hong; Zhao Xiaomin; Li Junge; Chen Yu International application: International announcement: Enter country date: Patent agency: Zhengzhou Zhongmin Patent Agency Co., Ltd. agent: Guo Zhongmin
The invention relates to a single piece fireproof glass with a lower expansion coefficient, a high expansion softening temperature and a high softening temperature for blocking the spread of open flame. It is characterized by weight composition, which comprises the following composition: SiO2 63-70%, Al2O3 12.5-19%, MgO 1-4%, CaO 6-10%, SrO 0.5-3%, BaO 0.5-2%, K2O 0 to 1%, Li2O 0 to 1%, and Na2O 6 to 10%. The single-piece fireproof glass has a coefficient of expansion of 60 to 70×10-7/° C., an expansion softening temperature exceeding 700° C., a softening temperature exceeding 800° C., and a physical tempering treatment temperature of 670 to 740° C.