Wang Rong-Tsu, Wang Jung-Chang, Chen Sih-Li
Department of Tourism and Leisure Management, Yu Da University of Science and Technology, Miaoli County 36143, Taiwan.
Department of Marine Engineering (DME), National Taiwan Ocean University (NTOU), Keelung 202301, Taiwan.
Polymers (Basel). 2022 Aug 4;14(15):3181. doi: 10.3390/polym14153181.
This paper adopted transient CFD (Computational Fluid Dynamics) simulation analysis with an experimental method for designing and surveying the quick and uniform rise in the temperature of the plastics into the insert mold cavity. Plastic injection molding utilizing VCRHCS (Vapor Chamber for Rapid Heating and Cooling System) favorably decreased the defects of crystalline plastic goods' welding lines, enhancing the tensile intensity and lowering the weakness of welding lines of a plastic matter. The vapor chamber (VC) possessed a rapid uniform temperature identity, which was embedded between the heating unit and the mold cavity. The results show that the tensile strength of the plastic specimen increased above 8%, and the depths of the welding line (V-gap) decreased by 24 times (from 12 μm to 0.5 μm). The VCRHCS plastic injection molding procedure can constructively diminish the development time for novel related products, as described in this paper.
本文采用瞬态计算流体动力学（CFD）模拟分析，并结合实验方法，来设计和测量塑料在进入注塑模腔时快速且均匀的升温情况。利用蒸汽腔快速加热和冷却系统（VCRHCS）的塑料注塑成型工艺，有效减少了结晶塑料制品熔接线的缺陷，提高了拉伸强度，并降低了塑料制品熔接线处的薄弱性。蒸汽腔（VC）具有快速均匀的温度一致性，它被嵌入在加热单元和模腔之间。结果表明，塑料试样的拉伸强度提高了8%以上，熔接线（V型间隙）的深度减小了24倍（从12μm降至0.5μm）。如本文所述，VCRHCS塑料注塑成型工艺能够切实减少新型相关产品的开发时间。
