塑料导轨对比金属导轨具有:抗摩、减磨;保护床身导轨不受拉伤或磨损;防止机床导轨低速重载下出现爬行;加工性好,使用工艺简便;化学稳定性好等优点。70年代以来,许多国家在数控机床、重型机床、精密机床等导轨上广泛采用了工程塑料。随着这些材料的专业化生产,价格逐渐下降,技术经济效益显著,因此,它在机床导轨上的应用逐渐普遍起来。一、聚四氟乙烯塑料导轨用氟碳聚合物来制造机床导轨十分普遍,发展也极为迅速,如美国霞板 Plastic rail contrast with metal rails: anti-friction, anti-wear; to protect the rail body from strain or wear; to prevent creeping under low-speed heavy machine rails; good process, the use of simple processes; chemical stability, and other advantages. Since the 1970s, many countries have extensively adopted engineering plastics on CNC machine tools, heavy machine tools and precision machine tools. With the specialized production of these materials, the price is gradually decreased, and the technical and economic benefits are remarkable. Therefore, its application in the guide of machine tools is gradually becoming commonplace. First, polytetrafluoroethylene plastic guide with fluorocarbon polymer machine tool rails are very common, the development is also very fast, such as the United States Xiaban