Lab scale PP sheet extrusion experiments were carried out using the designed die with a width of 0.87 m and a slit gap of 1 mm,and uniform PP sheet was successfully obtained.

• 在幅宽为 0 .；87m、口模间隙为 1mm的实验机头上进行了PP片材的挤出实验以证实机头结构的可行性和设计方法的正确性。