一、这类零件挤压成型的几个特点按零件横截面的变化,挤压件可分为:各横截面相等和各横截面沿轴向不同位置连续变化两大类。如磁控管腔体、阳块以及标准波导、慢波齿等均属第一类;而另一些挤压件,如辅助极锥体,组合波导,中管壳等则属第二类,我们称之为斜面内腔孔和锥体零件。 First, the extrusion of these parts features several parts by cross-sectional changes, the extrusion can be divided into: the same cross-section and the cross-section along the axis of the different positions of continuous changes in two categories. Such as the magnetron cavity, the positive block and the standard waveguide, slow wave teeth are the first category; while other extrusion, such as the auxiliary pole cone, the combination of waveguide, the shell is the second category, we Called bevel bore and cone parts.