螺杆挤出机因为有良好的混合性能,所以被广泛应用于橡塑行业。螺杆作为挤出机最重要零部件之一,根据其使用需要,其表面要求硬度高,同轴度及直线度高,同时还需具有耐腐蚀、耐磨、高强度、变形小等特点。本文介绍了橡胶挤出机螺杆的结构及使用要求,并根据笔者所在公司多年的使用经验,对其维护和保养 Screw extruder because of good mixing properties, it is widely used in rubber and plastics industry. Screw as one of the most important parts of the extruder, according to the needs of its use, the surface of the high hardness, high concentricity and straightness, but also need to have corrosion-resistant, wear-resistant, high strength, small deformation and so on. This article describes the structure of the rubber extruder screw and the use of requirements, and according to the author’s company for many years of experience, its maintenance and care