Engineering Faculty Internship: Characterization of Process Parameters for High-Speed Heat-Set Web Offset Lithography

该项目是在制造工艺领域，以便在该大学与美国一家领先的印刷商和印刷设备制造商之间开展长期研究合作。该项目的培训部分旨在深入了解热固性卷筒纸胶印以及设计和制造印刷设备所涉及的科学和工程问题，特别是烤箱和冷轧辊架。在该项目的第二阶段，将启动初步研究，目标是确定工艺参数。这项工作将试图了解卷筒纸中复杂的加热和冷却过程，以及卷筒纸在通过印刷机时运动的稳定性。最终目标是确定需要解决的关键科学问题，以缓解目前限制高质量高速打印的凝结条纹问题。现场实验将在现实的印刷机操作条件下进行，以获得对卷筒纸中热、水分和溶剂动态流动的基本了解，并验证初步的建模工作。

This project is in the area of manufacturing processes to develop a long-term research collaboration between the University and a leading United States printer and manufacturer of printing equipment. The training part of the project is aimed at acquiring an in-dept knowledge of heat-set web offset lithography and the scientific and engineering issues involved in the design and manufacture of printing equipment, in particular ovens and chill roll stands. In the second phase of the project preliminary research will be initiated with the goal characterizing the process parameters. This work will attempt to understand the complex heating and cooling processes in the web as well as the stability of web motion as it moves through the press. The ultimate goal is to identify the key scientific problems that need to be solved in order to alleviate the condensate streaking problem that currently limits high quality high speed printing. On site experiments will be explored under realistic press operating conditions to acquire a basic understanding of the dynamic flow of heat, moisture and solvent in the web as well as to verify preliminary modelling efforts.