包塑滚花钢管广泛用于公交车、地铁的扶手和公园、商场的护栏,其制造工艺为:经过电加热炉预热、在塑料挤出机上包塑的单机生产后包塑钢管销售,后到厂家先加热再在塑料层进一步滚花。本文创新地应用了中高频感应加热,综合成由计算机控制的加热、包塑、预冷、滚花、终冷的一体化工艺生产线,达到高效率、低能耗和高质量的良好效果。 Plastic coated knurled pipe is widely used in buses, subway handrails and parks, shopping malls of the fence, its manufacturing process: after electric heating furnace preheated plastic extrusion machine on the plastic bag production after the single-package plastic pipe sales, after To the factory before heating and further knurled in the plastic layer. In this paper, the application of medium and high frequency induction heating, integrated into a computer-controlled heating, plastic package, pre-cooling, knurling, final cooling of the integrated production line, to achieve high efficiency, low energy consumption and high quality good results.