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石英玻璃管供应商

石英管是由二氧化硅(SiO₂)制成的特殊工业玻璃管。与普通玻璃管不同,它们不易碎;相反,它们是一种具有卓越物理和化学性能的“超级玻璃”。其二氧化硅含量通常为99.9%或更高,这种高纯度赋予了它们一系列非凡的物理特性。

主要特点

耐热

它的软化点约为 1730°C;它可以在 1100°C 下长时间使用,甚至可以在短时间内承受高达 1450°C 的温度。

极佳的耐热性

即使将其加热至通红,然后迅速浸入冷水中,它也不会破碎。这是因为它的热膨胀系数极低。

化学稳定性

除了氢氟酸和热磷酸之外,它几乎不与其他任何酸发生反应;它的耐酸性是陶瓷的 30 倍,是不锈钢的 150 倍。

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