柔性玻璃二次下拉工艺的模拟研究

doi:10.16552/j.cnki.issn1001-1625.2024.1331

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (5): 1859-1868.DOI: 10.16552/j.cnki.issn1001-1625.2024.1331

柔性玻璃二次下拉工艺的模拟研究

周佳慧^1,2, 王衍行², 许银生¹, 李现梓², 韩滨², 何坤²

1.武汉理工大学硅酸盐建筑材料国家重点实验室,武汉 430070;
2.中国建筑材料科学研究总院有限公司,建材行业特种玻璃制备与加工重点实验室,北京 100024

收稿日期:2024-11-05 修订日期:2025-01-15 发布日期:2025-05-20
通信作者: 王衍行,博士,教授级高级工程师。E-mail: drwangyh@126.com
作者简介:周佳慧(2000—),女,硕士研究生。主要从事特种玻璃的研究。E-mail: 1240702676@qq.com
基金资助:
中国建材联合会“揭榜挂帅”项目(2023JBGS02-01);国家自然科学基金(U2231236)

Simulation Study on Secondary Pull-Down Process of Flexible Glass

ZHOU Jiahui^1,2, WANG Yanhang², XU Yinsheng¹, LI Xianzi², HAN Bin², HE Kun²

1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China;
2. Building Material Industrial Key Laboratory for Special Glass Preparation and Processing, China Building Materials Academy Co., Ltd., Beijing 100024, China

Received:2024-11-05 Revised:2025-01-15 Online:2025-05-20

摘要/Abstract

摘要： 二次下拉工艺是制备柔性抗辐照玻璃的一种重要工艺,然而利用该工艺制备玻璃时难以准确获得玻璃的拉制特性并快速调整工艺参数。本文通过ANSYS Polyfolw软件有限元仿真模拟结合实际拉制工艺参数,仿真模拟了厚度场、速度场、温度场的变化情况,分析了二次下拉工艺参数对柔性玻璃成型后宽度和厚度的影响,并进行了验证。结果表明:在加热区,缩颈现象导致成型玻璃边部厚度大于中心厚度,沿拉伸方向玻璃的边部速度分量明显小于中心速度分量;在冷却区,玻璃边部温度显著高于中心温度。加热温度与成型玻璃的厚度呈正相关,而与宽度呈负相关;牵引速度与成型玻璃的厚度和宽度均呈负相关;玻璃初始厚度与成型玻璃的厚度呈正相关,但与宽度呈负相关。

关键词: 柔性抗辐照玻璃, 二次下拉工艺, 有限元模拟, 缩颈现象, 场分布, 工艺参数

Abstract: The secondary pull-down process is an important process for preparing flexible radiation-resistant glass. However, it is difficult to accurately obtain the drawing characteristics of glass using secondary pull-down process and quickly adjust the process parameters. In this paper, the finite element simulation of ANSYS Polyfolw software was combined with actual drawing process parameters to simulate the changes of thickness field, velocity field and temperature field. The influences of secondary pull-down process parameters on the width and thickness of flexible glass after forming were analyzed and verified. The results show that in heating zone, the necking phenomenon causes the edge thickness of formed glass to be larger than center thickness, and the edge velocity component of glass along tensile direction is significantly smaller than center velocity component. In cooling zone, the glass edge temperature is significantly higher than center temperature. It is found that the heating temperature is positively correlated with the thickness of formed glass, and negatively correlated with width. The traction speed is negatively correlated with the thickness and width of formed glass. The initial thickness of glass is positively correlated with the thickness of formed glass, but negatively correlated with width.

Key words: flexible radiation resistant glass, secondary pull-down process, finite element simulation, necking phenomenon, field distribution, process parameter

中图分类号:

TQ171

周佳慧, 王衍行, 许银生, 李现梓, 韩滨, 何坤. 柔性玻璃二次下拉工艺的模拟研究[J]. 硅酸盐通报, 2025, 44(5): 1859-1868.

ZHOU Jiahui, WANG Yanhang, XU Yinsheng, LI Xianzi, HAN Bin, HE Kun. Simulation Study on Secondary Pull-Down Process of Flexible Glass[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(5): 1859-1868.

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柔性玻璃二次下拉工艺的模拟研究

Simulation Study on Secondary Pull-Down Process of Flexible Glass

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