Effects of vibration frequency and vibration pressure amplitude on yield strength, elongation at break, modules of elasticity in tension and impact strength of injected HDPE samples were explored.

• 采用自制的振动注射试验装置注射成型高密度聚乙烯(HDPE)制件,探讨振动频率、振动压力幅度对HDPE注塑件屈服强度、断裂伸长率、拉伸弹性模量和冲击强度的影响。