黑色无砷锂铝硅微晶面板玻璃化转变数据

黑色无砷锂铝硅微晶面板玻璃化转变点数据主要用于计算样品的玻璃化转变温度，玻璃化转变温度是微晶材料的一项重要性质，涉及玻璃退火、烤花等重要工序的温度设定。黑色无砷锂铝硅微晶面板在压延成型工序后要经过退火工序，以消除微晶面板热应力，利于后续冷端裁切，不至于炸板、开裂，因此，退火温度制度显得尤为重要。黑色无砷锂铝硅微晶面板玻璃化转变点数据主要用于计算样品的玻璃化转变温度，玻璃化转变温度用于设计高温玻璃成型后的退火温度制度，消除玻璃热应力，防止冷端切割时候出现炸板、裂板等情况。计算过程如下：1.导入温度和DSC数据，绘制数据曲线。2.求导一阶函数，找到一阶函数变化的温度范围，此即玻璃化转变温度范围。3.分别绘制该温度范围之前曲线的切线和该温度范围之后曲线的切线。4.计算两切线的交点，记为玻璃化转变温度值。

The glass transition point data of black arsenic-free lithium aluminosilicate glass-ceramic panels are primarily used to calculate the glass transition temperature (Tg) of the samples, a critical property of glass-ceramic materials that underpins temperature parameter setting for key manufacturing processes including glass annealing and decorative firing. Following the calendering forming process, black arsenic-free lithium aluminosilicate glass-ceramic panels must undergo an annealing procedure to remove thermal stress, enable smooth subsequent cold-end cutting, and avoid panel bursting or cracking. As such, the annealing temperature schedule is of paramount importance. The calculated glass transition temperature is further utilized to design the annealing temperature schedule for high-temperature formed glass panels, eliminating internal thermal stress and preventing defects like bursting and cracking during cold-end cutting. The detailed calculation process is as follows: 1. Import temperature and differential scanning calorimetry (DSC) data, then plot the corresponding data curve. 2. Compute the first-order derivative of the curve to identify the temperature range where the first-order derivative exhibits significant changes, which constitutes the glass transition temperature range. 3. Draw the tangent lines of the curve before and after this temperature range respectively. 4. Calculate the intersection point of the two tangent lines, which is defined as the glass transition temperature value.