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首页> 外文会议>International Conference on High Performance and Optimum Design of Structures and Materials >Effect of mold temperature on interfacial welded strength and outer shell laminate strength of CF/PA6 composites manufactured by press and injection hybrid molding
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Effect of mold temperature on interfacial welded strength and outer shell laminate strength of CF/PA6 composites manufactured by press and injection hybrid molding

机译：模具温度对通过压制和注射混合模塑制造的CF / PA6复合材料界面焊接强度和外壳层压强度的影响

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摘要

The press and injection hybrid molding system is a novel molding technology with the combination of press molding and injection molding, and is expected for the mass production of FRTP (Fiber Reinforced Thermoplastics) which have complicated shapes. The hybrid FRTP structure consists of the following two structures: the outer shell laminate structure that is molded by the press molding using continuous fiber, and the rib structures that are molded by the injection molding using short or long fibers. In a previous study, the hybrid composite has been reported to fracture at the welded interface between the laminate and injected material. The method, in which outer shell laminate penetrates into the rib structures, was developed to increase the interfacial welded strength. However, the continuous fiber of outer shell laminate waves at the welded interface and may lead to reduction in mechanical properties. Therefore, it is necessary to clarify the reduction in the strength of outer shell laminate. In this study, the effects of mold temperature on the mechanical properties were evaluated by T-shaped specimens for interfacial welded strength and by in-plain tensile tests for the strength of outer shell laminate. As the mold temperature becomes higher, the penetrated height of continuous fiber into a rib becomes higher and higher interfacial welded strength is obtained.
机译：压力机和注射混合模塑系统是一种新型模塑技术，采用压力机和注塑成型的组合，并预期具有复杂形状的FRTP（纤维增强热塑性塑料）的批量生产。混合FRTP结构由以下两个结构组成：外壳层压结构由使用连续纤维模制的外壳层压结构，以及通过短纤维或长纤维通过注射成型模制的肋结构。在先前的研究中，据报道，杂化复合材料在层压材料和注入材料之间的焊接界面处裂缝。开发的该方法，其中外壳层压板穿过肋骨结构，以增加界面焊接强度。然而，在焊接界面处的外壳层压波的连续纤维，并且可能导致机械性能降低。因此，有必要阐明外壳层压板的强度的降低。在该研究中，通过T形样本对模具温度对机械性能的影响进行界面焊接强度和外壳层压强度的纯抗拉性试验。随着模具温度变高，将连续纤维的穿透高度变高，获得更高的界面焊接强度。

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