低频振动对聚乙烯注射件力学性能的影响

Study on Effect of Low Frequency Vibration on Mechanical Properties of Injected PE Parts

利用压力振动注射实验装置 ,实现低频率的压力振动注射 ,探讨了振动频率、振动压力对哑铃注射试样屈服强度的影响 ,发现LDPENA5 41注塑件的屈服强度最大增幅为 14 .5 % ,HDPE 5 0 0 0s和HDPEDGDA60 98注塑件的屈服强度最大增幅分别为 2 1.8%和 2 1.9%。

Using the self-made vibration injection device to realize pressure vibration at low frequency,effects of vibration frequency and vibration pressure on yield strength of injected dumbbell samples were explored.The experimental results show that,at most,the samples′yield strength of LDPE NA541,HDPE 5000s and HDPE DGDA6098 increases 14.5%,21.8% and 21.9% respectively.