一、前言螺旋绝缘同轴电缆要在宽频带内保持良好的传输特性,要求电缆具有良好的均匀性,对绝缘外径公差提出了高要求,以致用挤出的办法往往难以实现,而必须进行机械切削加工。对聚乙烯或聚四氟乙烯棒进行机械切削加工,以往有如下两种方法。一种是旋风切削 I. Introduction Spiral insulated coaxial cable to maintain good transmission characteristics in a wide frequency band, requires a good uniformity of the cable, the insulation diameter tolerance put forward high requirements, so that the use of extrusion is often difficult to achieve, and must be carried out Mechanical cutting. Polyethylene or Teflon rods for mechanical cutting, in the past there are two ways. One is cyclone cutting