Modelling of the fiber degradation for injection molding processes

注塑成型过程中纤维降解的建模

• 批准号: 397478673
• 负责人: Professor Dr.-Ing. Elmar Moritzer
• 金额: --
• 依托单位: Fachgruppe Kunststofftechnologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/397478673?language=en
• 关键词: Modelling; fiber; degradation; injection; molding

The central aim of the research is the development of a model describing the fiber length degradation during injection molding of short and long glass fiber-reinforced polypropylene materials. The modeling should contribute to the identification of process settings with minimal fiber length reduction. The process-specific simulations and their systematic comparison with experimental results provide the basis to revise the modeling. By the end of the project running time, the model should be able to predict the fiber length reduction for specific screw sections and the non-return valve with high accuracy taking different machine sizes, fiber-reinforced polypropylene materials and process parameters into account. The results are further used to develop an optimized screw design with respect to minimized fiber length reduction during processing fiber-reinforced plastics.

本研究的中心目标是建立一个描述短、长玻璃纤维增强聚丙烯材料注射成型过程中纤维长度退化的模型。该模型应有助于识别具有最小纤维长度减少的工艺设置。具体过程的模拟及其与实验结果的系统比较为修正模型提供了依据。在项目运行结束时，该模型应能够在考虑不同机器尺寸、纤维增强聚丙烯材料和工艺参数的情况下，高精度地预测特定螺杆段和止回阀的纤维缩短量。研究结果进一步用于开发一种优化的螺杆设计，在加工纤维增强塑料过程中尽量减少纤维长度。