润滑剂的作用

The effect of lubricants

内润滑剂的作用有以下三个方面：

The role of internal lubricants in the following three aspects:

（１）使树脂稳定地塑化，防止塑化时转矩急剧升高；

(1) the resin is plasticized steadily to prevent the sharp increase of torque when plasticizing.

（２）降低树脂熔融粘度，增加流动性，使螺杆转矩下降，增加挤出量和生产量；

(2) reduce the melt viscosity of the resin, increase the fluidity, reduce the torque of the screw and increase the amount of extrusion and production.

（３）提高加工能力，减少设备负荷，提高能量效率。

(3) improve the processing capacity, reduce the load of equipment, and improve the energy efficiency.

外润滑剂的作用有以下五个方面：

There are five aspects of the effect of external lubricants:

（１）防止由于树脂与成型金属表面摩擦热所引起树脂的分解及着色；

(1) to prevent the decomposition and coloring of the resin caused by the friction heat of the resin and the formed metal surface;

（２）防止在成型加工机械表面烧结；

(2) prevent sintering on the surface of molding machine;

（３）提高滚筒表面的剥离性能；

(3) to improve the stripping performance of the roller surface;

（４）提高脱模性；

(4) improve the demoulding nature;

（５）提高成品表面的光滑性。

(5) improve the smoothness of the finished product surface.