Process Influences in the Combined Compacting and Back-Injection Process to Produce Back-Injected Self-Reinforced Composites (SRCs) – Analysis via Multiple Regression Modelling
Process Influences in the Combined Compacting and Back-Injection Process to Produce Back-Injected Self-Reinforced Composites (SRCs) – Analysis via Multiple Regression Modelling
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DOI：
10.1515/ipp-2020-4105
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发表时间：
2021-11
影响因子：
1.3
通讯作者：
F. Jakob;J. Pollmeier;H. Heim
中科院分区：
文献类型：
--
作者：
F. Jakob;J. Pollmeier;H. Heim
摘要提出了一种制备反注射自增强复合材料的新工艺。在对比其他调查的SRC的回注，提出了一个过程，它允许压实和回注的SRC在一个步骤中的SRC部分巩固只有通过熔体压力内的腔。SRC的机械性能在很大程度上取决于制造过程中的温度和压力等工艺参数。回注区域的这些参数尚不清楚。腔体内的传感器测量对腔体内的温度和压力条件的影响。对粘附力进行了初步研究和分析。为此，进行了反向注射部件的剪切试验，并确定了此处使用的材料的最大剪切强度为5.81 MPa。研究还表明，依赖于距离门（DG）和质量温度（TM）。第一次显微镜检查显示SRC和注塑部件之间的良好结合，在边界层中没有空隙或气穴。还可以看出，成功的固结发生在回注区域。
Abstract A new process to produce back-injected self-reinforced composites (SRCs) is presented. In contrast to other investigations on back-injection of SRCs, a process is presented which allows compacting and back injection of SRCs in one step where the SRCs are partly consolidated only via melt pressure inside the cavity. The mechanical properties of SRCs depend to a large extent on the process parameters of temperature and pressure during manufacture. These parameters are not yet known for back-injected areas. Sensors inside of the cavity measure the influences on the temperature and pressure conditions in the cavity. Initial studies on adhesion were carried out and analysed. For this purpose, shear tests of the back-injected component were carried out and a maximum shear strength of 5.81 MPa was determined for the materials used here. The investigations also show a dependence on the Distance from the Gate (DG) and the Mass temperature (TM). First microscopic examinations show good bonding between the SRC and the injection molded part, with no voids or air pockets in the boundary layer. It can also be seen that successful consolidation takes place in the area of the back injection.