Emulsion-Process-Monitor in metal working processes EPM II

液体乳状液在金属加工过程中用作润滑剂和/或冷却液(切削液)，如在研磨或滚压中。在工业过程链中，由于连续使用，用过的乳液可能会偏离理想状态和组成。例如，乳化相浓度或其液滴尺寸分布可能会因物理、化学和/或生物过程而改变或改变乳状液成分组成。金属加工过程中乳化液质量的控制是延长机器运行时间、保护环境、提高机器运行经济竞争力的一项重大任务。该项目旨在开发一种金属加工过程中的乳化液过程监控器，可以在过程中和在线使用来控制乳化液的稳定性和质量。采用静态光散射、衍射法和光谱分析等非侵入性计量方法，有针对性地综合评价乳状液的质量。测量过程由适当的模型推导算法控制。测量装置、数据采集和操作是由大学的合作伙伴的德国方面开发的。而基于多元模型以及数值建模和模拟工具的数据评估程序是由巴西方面在USP开发的。

Liquid emulsions are used in metalworking processes as in grinding or tuming as lubricant and/or cooling fluid (cutting fluid). In the industrial process chain, the used emulsions may depart from the ideal state and composition due to continuous use in the process. E.g. the emulsified phase concentration or its droplet size distribution may change or the emulsion components composition is altered due to physical, chemical and/or biological processes. Control of the emulsion quality in metalworking processes is a major task to prolong machine operating times, to protect the environment and to enhance the machine operation economical competition. The project aims at the development of an Emulsion-Process-Monitor in metalworking processes that can be used in-process and on-line to control the emulsion stability and quality. Non-intrusive metrology, as static light scattering, diffraction and spectrometry, are employed in a targeted combination to evaluate the emulsion quality. The measuring procedure is controlled by an appropriate model derived algorithm. The measurement device and the data acquisition and operation are developed by the German side of the cooperation partners at Univ. Bremen, while the data evaluation procedures based on multivariate models and numerical modelling and simulation tools are developed by the Brazilian side at USP.