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发明公开
CN104445926A 一种玻璃组合物及其制成的适合化学增强的硼硅酸盐玻璃 无效 - 驳回

一种玻璃组合物及其制成的适合化学增强的硼硅酸盐玻璃
摘要：
本发明涉及一种玻璃的组合物，该组成为（wt%）：SiO268~78、B2O38~15、Al2O35~11、Na2O3~8、Li2O0.1~1、MgO0.5~4、CaO0~2、ZrO20~2。该玻璃组成属于硼硅酸盐玻璃体系，具有很低的膨胀系数，约为（40±1）×10-7/°C。与相同膨胀系数的普通硼硅酸盐玻璃相比，该玻璃组分更适合化学增强，强化后机械强度将大幅度提高，适用于制得高强度、低膨胀的玻璃防火门窗、玻璃器皿、太阳能集热管、太阳能电池盖板玻璃等产品。同时涉及上述玻璃组合物制成的适合化学增强的硼硅酸盐玻璃。
摘要（英）：

The invention relates to a glass composition consisting of the following components: 68-78 wt% of SiO2, 8-15 wt% of B2O3, 5-11 wt% of Al2O3, 3-8 wt% of Na2O, 0.1-1 wt% of Li2O, 0.5-4 wt% of MgO, 0-2 wt% of CaO and 0-2 wt% of ZrO2. The glass composition belongs to a borosilicate glass system and has a very low expansion coefficient, which is about (40 +/-1) * 10<-7>/DEG C. Compared with common borosilicate glass with the same expansion coefficient, the glass composition is more suitable for chemical enhancement, the enhanced mechanical strength is improved to a great extent, and the glass composition is suitable for preparing high-strength and low-expansion glass fireproof doors and windows, glass wares, solar heat collecting tubes, solar cell cover plate glass and other products. The invention further relates to borosilicate glass made from the glass composition and suitable for chemical enhancement.

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