主要介绍了电火花沉积堆焊工作原理，应用沉积堆焊工艺修复液压活寒杆，取得了良好效果。
In this paper the working principle of electro - spark surfacing is introduced. Surfacing process is applied to restoring hydraulic piston - rod and gains good effectiveness.
叙述了电火花处理对高分子材料表面结构与性能，以及处理条件对改性效果的影响，电火花引发高分子材料表面接枝改性的新方法。
The effect of corona discharge treatment on the structure and properties of polymer materials as well as the surface graft modification by corona discharge were briefly introduced.
由于混粉电火花加工技术与普通电火花加工技术的最大区别是在工作液中添加的导电性粉末参与放电，粉末的存在对加工效果有重要的影响。
The remarkable difference between powder-mixed EDM and conventional EDM is that electric powder suspended in working fluid plays an important role in machining process.
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