表面工程技术在挤出机螺杆上的应用
Surface Engineering Technology Application on the Extruder Screw
王定涛，郎珊珊，马勤
点击：2205次 下载：0次
作者单位：兰州理工大学
中文关键字：螺杆；耐磨；表面工程技术
英文关键字：Screw Material；Wear Resistance；Surface Engineering Technology
中文摘要： 螺杆是挤出机重要的组成部件，其在腐蚀、强烈磨损、扭转下工作。因此，其表面常发生快速磨损而失效。目前,国内挤出机螺杆普遍采用合金钢38CrMoALA调质氮化处理及高速钢(W6Mo5Cr4V2、W18Cr4V) 整体淬火技术使螺杆表层达到高硬度以提高耐磨性。随着对螺杆的使用性能要求日益提升，传统的热处理技术对性能提高幅度有限，因此，一些相应的表面工程技术应用而生，并具有良好的应用前景。
英文摘要：The screw is an important component of an extruder, which works in corrosive, strong wear and torsion condition. So the material surface often wears to failure rapidly. At present, the extruder screw achieves high surface hardness to improve wear resistance by using widely to nitride quenched and tempered 38CrMoALA alloy steel and quench overall technology of High-speed steel (W6Mo5Cr4V2, W18Cr4V). With the screw performance requirements increasingly, the traditional treatment is limit to improve the performance. Therefore, the surface engineering technology has been researching and an excellent prospect.