A novel self-made hydraulic vibrator used as the driving impetus of a motion mechanism to realize axial pulse of an injection screw is adopted.

• 采用液压激振力为驱动动力的运动机构方法,实现注射螺杆的轴向脉动,使熔融塑化、注射、保压过程均在周期性振动状态下进行。