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天津电工专用设备厂自制了一台DM6720型电火花线电极切割机床(图纸由机床所设计)在调试过程中,发现了一些问题,现在我们把该厂解决这些问题的方法介绍如下,以供大家参考(摘自该厂试制总结) 一、机床调整中碰到的几个问题: 1、功率管间打火,不仅影响电子管的寿命,变压器发热,且在间隙状态很不稳定,经过分析,发现是由于供给功率管屏后的两组线圈(150～0～150v)的相位(同名端)接法不正确,纠正后即消除了打火现象。
Tianjin Electrotechnical Equipment Factory produced a DM6720-type electric discharge wire electrode cutting machine (drawings designed by the machine tool). During the debugging process, some problems were discovered. Now we have introduced the following methods for solving these problems. Reference (taken from the factory’s trial production summary) 1. Several problems encountered in machine tool adjustment: 1. The fire between power tubes not only affects the life of the electron tube, the transformer heats up, but also is unstable in the gap state. After analysis, it is found that Since the phase (terminal of the same name) of the two sets of coils (150 to 0 to 150 v) after the supply of the power tube panel is connected incorrectly, the ignition phenomenon is eliminated after the correction.