高级硅砖的研制

Study on High-Duty Silica Bricks

高级硅砖是玻璃熔窑上部结构的主要耐火材料,其主要性能是荷重软化温度高,真密度低,高温蠕变小和体积稳定性好。对提高熔制温度、延长炉龄以及采用全保温技术节约能源起重要作用。为此,轻工业部玻璃搪瓷工业科学研究所于1984年起,对高级硅砖进行研究,采用特定的工艺方法,研制出试制品,并在1985年5月通过实验室鉴定。 嗣后。

On condition that the melting index (Al2O3+TiO2+B2O) is<0.5%, a kind of high-duty silica brick having refractoriness under Ioad≈1700℃ and true density≈2.33 can be produced successfully by a specific process of batch preparation with different silica sands. This is a superior refractory produced in the country for superstructure of glass tanks. The results of test under the same condition show that its major physical and chemical properties reach the same level of advanced high-duty silica bricks in the world. This domestic high-duty silica brick has been in use in more than ten glass factories and has been well received.