The results show that the forming bubbles can be effectively prevented and the high-speed extrusion without bubble can become the truth through adjusting the screw speed, increasing the die gap and selecting the suitable processing conditions.

• 实验表明:通过调整螺杆转速、加大机头口模间隙及选择适当的工艺条件,可以有效地防止气泡的产生,实现无泡高速挤出。