High Dynamic High Temperature Press (HHP)

高动态高温压力机 (HHP)

• 批准号: 453677296
• 金额: --
• 依托单位: Technische Universität Chemnitz
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/453677296?language=en
• 关键词: Dynamic; Temperature; Press; HHP

Lightweight construction with continuous fiber-reinforced thermoplastics offers several advantages over thermoset-based fiber composite construction methods and leads to a considerable reduction of the cycle time in the manufacture of components by use of compression molding. The temperature limits for the use of such components are generally determined by the properties of the matrix material, so that only so called high temperature thermoplastics can be used for high-performance components with long term use of over 150 °C. The production and processing of thermoplastic high temperature materials in the pressing process is extremely demanding and cannot be carried out with the applicant's existing equipment, as their working temperature range is currently limited to 220 °C. In addition, none of the existing machines has sufficiently powerful, separately controllable heating and cooling technology for processing high temperature plastics for processing high-temperature plastics.The High Dynamic High Temperature Press (HHP) applied for represents a replacement for an existing press (Joos HP-S40) which can no longer be used due to technical and safety factors. HHP not only takes over the range of tasks of the old unit, but also greatly expands it with regard to numerous technological features that go beyond the basic equipment of conventional hydraulic presses.For the use of thermoplastic high temperature materials, heating and cooling up to 420 °C using thermal oil and the necessary control points in the press room are required. The use of other temperature control concepts is not technically feasible in this temperature range. Due to the material and component requirements in the sector spectrum for high-performance components, a design with improved plane parallelism and lateral offset, which can be achieved by means of hydraulic parallel control as well as a heavily stressed torsionless steel construction, is essential.Basic work focuses on the determination of forming forces, flow behavior and fiber wetting as well as on the determination of mechanical parameters of novel material combinations. In addition to the research projects, the press to be replaced is decisive for the implementation of courses, in particular for internships. The resulting main research areas as well as own research in the context of dissertations are indispensable for the applicants. These include, for example, the development of novel material combinations for lightweight structures in compression molding, the characterization of multi-material composite structures, the design of process chains for the production of continuous fiber-reinforced thermoplastic structural components and the investigation of continuous fiber-reinforced GMT structures with regard to load transfer between random fiber and continuous fiber.

采用连续纤维增强热塑性塑料的轻质结构比基于热固性的纤维复合材料结构方法具有几个优点，并显著缩短了使用压缩模塑制造部件的周期时间。这种部件的使用温度限制通常由基质材料的性能决定，因此只有所谓的高温热塑性塑料才能用于长期使用150°C以上的高性能部件。在压制过程中热塑性高温材料的生产和加工要求非常高，不能用申请人现有的设备进行，因为它们目前的工作温度范围被限制在220°C。此外，现有的任何机器都没有足够的功率，可单独控制加热和冷却的高温塑料加工技术，用于加工高温塑料。申请的高动态高温压力机(HHP)是对现有压力机(JOOS HP-S40)的替代，现有压力机因技术和安全因素而不能再使用。HHP不仅接管了旧设备的任务范围，而且大大扩展了它的许多技术功能，这些功能超出了传统液压机的基本设备。要使用热塑性高温材料，需要使用热油加热和冷却到420°C，并在新闻发布室设置必要的控制点。在这个温度范围内，使用其他温度控制概念在技术上是不可行的。由于高性能构件扇形谱对材料和构件的要求，改进的平面平行度和横向偏移量的设计是必要的，这种设计可以通过液压并行控制和重应力无扭转钢结构来实现。基本工作集中于成形力、流动行为和纤维润湿的确定以及新材料组合的力学参数的确定。除了研究项目外，被取代的出版社对课程的实施，特别是实习课程的实施具有决定性作用。由此产生的主要研究领域以及自己在学位论文背景下的研究对申请者来说是不可或缺的。例如，包括为压缩模塑中的轻质结构开发新的材料组合、多材料复合材料结构的表征、生产连续纤维增强热塑性结构部件的工艺链的设计以及关于随机纤维和连续纤维之间的载荷传递的连续纤维增强GMT结构的研究。