用于智能手表的3D超薄玻璃组件的热曲模拟和实验研究
Shunchang Hu1, Peiyan Sun1,2, Zhen Zhang2,3
1Henan Key Laboratory of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, China.
Micromachines
|October 26, 2024
概括
优化超薄玻璃成型的加热策略,大大减少了能源消耗和加热时间. 这项研究发现,特定的加热速率和工艺参数将G-11玻璃的残余应力和形状偏差降至最低.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 热力工程是热力工程中的一个.
背景情况:
- 供热系统对于玻璃成型至关重要,但在大规模生产中,能源消耗是一个主要问题.
- 超薄玻璃成型需要精确的温度控制,以获得最佳的材料性能和缺陷预防.
研究的目的:
- 开发和验证一个有限元模型用于3D超薄玻璃成型中的导热和曲.
- 研究加热策略和工艺参数对能源消耗,热应力和形状偏差的影响.
- 优化加热过程以提高效率和减少环境影响.
主要方法:
- 在3D超薄玻璃成型系统中开发G-11玻璃热导和热曲的有限元模型.
- 模拟模具和玻璃之间的热传递,使用有限元软件来预测温度分布和热应力.
- 四种不同的加热策略的数值分析和成型过程参数的单因素分析.
主要成果:
- 加热速度显著影响能源消耗;优化策略4减少了4.396%的热量输出和7.875%的加热持续时间.
- 确定了最佳工艺参数:温度615-625°C,成型压力25-35 MPa,加热速率1.5-2.5°C/s,冷却速率0.5-1°C/s,脉冲压力45-55 Hz.
- 实验验证证证实在确定参数范围内对残余应力和形状偏差的影响最小,相对误差在20%以内.
结论:
- 优化的加热策略和工艺参数对于高效和高质量的超薄玻璃成型至关重要.
- 开发的有限元模型为预测和优化玻璃成型过程提供了可靠的工具.
- 这些发现为工业过程的发展提供了关键的方向,提高了能源效率和产品质量.
相关概念视频
01:11Glassware Calibration
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
01:14Design Example: Resistive Touchscreen
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...