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Erzeugung ablauffreier Tragkraftverteilungen beim induktiven Schwebeschmelzen elektrisch leitender Stoffe

在导电材料的感应浮动熔化过程中产生无漏极承载力分布

基本信息

批准号：
167940432
负责人：
Professor Dr.-Ing. Egbert Baake
金额：
--
依托单位：
Institut für Elektroprozesstechnik (ETP)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2010
资助国家：
德国
起止时间：
2009-12-31 至 2014-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/167940432?language=en
关键词：
Erzeugung ablauffreier Tragkraftverteilungen beim induktiven

项目摘要

Based on the knowledge and experience achieved by the work done in the frame of the DFG-research project BA 3565/3-1 during the applied one year prolongation of this project the work and investigations as well as targets described as follows are planned to be done.Using a coupled electromagnetic and fluid-dynamic three-dimensional transient numerical simulation model based on commercial codes ANSYS and FLUENT, which has been verified in the frame of pre-investigations, the suitable electrical operation parameter und the constructive design of a enhanced two-frequency-levitation melting experimental set-up with a view on significant increasing of the melt-mass will be investigated and defined. In particular the dynamic behaviour and the process stability of the levitated melt-mass will be investigated. Due to the adaptation of the design of the coil and magnet core construction as well as the electrical parameter a high stability of the melting process should be achieved. The numerical simulation are carried out in the first step without and in the second step with the use of the cold-protection-wall.Based on the results carried out by the numerical simulation the existing two-frequency-levitation melting experimental set-up will be re-constructed and enhanced in this way, that the mass of the metal samples to be melted can be increased. With the experimental investigations to be carried out in the frame of project prolongation in particular practical cognition and know-ledge of the dynamic behaviour and process stability of the levitated and melted aluminium sample with increased mass will be achieved. The experimental investigations are carried out in the first step without and in the second step with the use of the cold-protection-wall. Finally, the realisation of the practical application in industrial scale of the new developed method for the dip- and leakage free levitation melting of bigger mass will be evaluated and described.

根据DFG研究项目BA 3565/3-1框架内工作所获得的知识和经验，在该项目延长一年期间，计划进行以下工作和研究以及目标：使用基于商用代码ANSYS和FLUENT的耦合电磁和流体动力三维瞬态数值模拟模型，在前期研究的基础上，确定了提高熔体质量的双频悬浮熔炼实验装置的电操作参数和结构设计。特别是悬浮熔体质量的动态行为和过程稳定性将进行研究。由于线圈和磁芯结构的设计以及电气参数的适应性，应该实现熔化过程的高稳定性。分别对不加护冷墙和加护冷墙两种情况进行了数值模拟，并根据数值模拟结果对现有的双频悬浮熔炼实验装置进行了改造和改进，以增加待熔炼金属样品的质量。特别是在项目延期框架内进行的实验研究，将使人们对增重悬浮熔融铝试样的动态行为和过程稳定性有一个实际的认识和了解。第一步进行了无防寒墙的实验研究，第二步进行了有防寒墙的实验研究。最后，将评估和描述新开发的用于更大质量的无浸渍和无泄漏悬浮熔炼的方法在工业规模上的实际应用的实现。