文档介绍：摘要
油墨作为印刷生产中的重要材料之一，它的特性如何很大程度上决定着产品的印刷质量。油墨的多种特性中，粘度又是最为重要的。而在实际生产中，影响油墨粘度最为明显的因素就是温度。温度高时，油墨分子相对移动能力增强，油墨的粘度下降；温度低时，油墨分子内聚力强，油墨的粘度上升。因此，通常温度增高，油墨变稀，温度降低，油墨变稠。
本课题中，通过ANSYS CFX建立油墨流动仿真模型，提取数据，分析温度变化；随后通过对油墨印刷适应仪进行多组模拟印刷实验，用温度枪和红外热像仪测量墨辊表面温度数据，记录并处理数据，分析油泵压力、墨辊转速对油墨温度上升的影响，得出结论，并与仿真的结论进行对比分析，掌握油墨温度变化机理以及油墨温度场变化的特性，从而对实际生产提供理论依据。
关键词：印刷；油墨；粘度；温度
Abstract
Ink, as one of the important material in the production of printing, how its features to a great extent determine the print quality of the variety of features of ink, viscosity is the most the actual production, factors affecting ink viscosity is the most obvious is the high temperature, the ink molecules relative mobility enhancement, ink viscosity decreased;At low temperature, strong molecular cohesion ink, ink viscosity , therefore, higher temperature, ink is thinning, temperature is reduced, ink thicken.
This topic, provided by ANSYS CFX ink channel simulation model is set up, extract the data, the analysis of temperature change;Then through the ink printing to adapt to the instrument to multiple sets of simulation experiment, the temperature gun and infrared thermal imager was used to measure the ink roller surface temperature data, record and process the data, analysis the influence of various factors on the ink temperature rise, come to the conclusion, and compared with the conclusion of simulation analysis, grasp the ink temperature change mechanism and the characteristics of ink temperature field changes, so as to provide theoretical basis for practical production.
Key words: printing；printing ink；viscosity；temperature
目录
摘要 I
Abstract II
第1章 绪论 1
1
1
油墨的性质 1
油墨温度对印刷的影响 2
热传递规律 2
3
4
4
ANSYS CFX仿真分析 4
印刷过程中油墨温度场的变化 4
第2章 ANSYS仿真 5
油墨流动模型 5