喷射成形中的喷射雾化机理研究

基金项目:

国家自然科学基金（编号：19772026）、上海市科学技术发展基金（编号：97XD14006）和上海市新材料研究中心资助项目

详细信息

ON THE SPRAY ATOMIZATION MECHANISM IN SPRAYFORMING

Shanghai University, Shanghai Institute of Applied Mechanic and Mathematics, Shanghai 200072

摘要: 喷射成形技术是一项新兴的快速凝固技术。喷射雾化作为其中的一道重要的工序,其机理的研究具有重要的意义。主要介绍了喷射雾化的阶段、各阶段的机理和时间尺度以及脉动因素对喷射雾化的影响等方面的研究。着重讨论了各项物理参数(如粘性、表面张力和相对速度等)对喷射雾化过程的影响。
- 喷射成形 /
- 喷射雾化机理 /
- 粉末冶金
Abstract: Sprayforming is a developing technology for rapid solidification. Spray atomization is an important process in sprayforming, so the research of its mechanism is of great importance for the improvement of sprayforming. In this paper, author discussed the stale of art on the study of the stages in spray atomization 9 the mechanism and time scale of each stage, the effect of impulse on spray atomization and especially how the variations of physical parameters (such as viscosity, surface tension, relative velocity between gas and liquid, etc).affect the process of spray atomization.
- sprayforming /
- spray atomization /
- mechanism of spray atomization