浮法玻璃拉引向和横向热膨胀系数的差异性分析

Analysis of the difference between the drawing and transverse thermal expansion coefficient of float glass

热膨胀系数是玻璃的重要物理性质之一,是评价其热稳定性和封接匹配性的关键热学性能指标。利用仪器法测试浮法玻璃板的拉引向、横向热膨胀系数时存在微小的差异性。利用双丝法测试玻璃板的拉引向、横向热膨胀系数时,不存在差异性。

Thermal expansion coefficient is one of the important physical properties of glass. It is the key thermal performance index evaluating its heat stability and sealing match. Using the instrument method to test the drawing and the transrerse thermal expansion coefficient of floating-glass plates, there are small differences. There is no difference between the drawing and the transverse thermal expansion coefficient of the glass plate, when the double wire method is used.