The method of speed regulation is: after selecting the pulse width and pulse interval, and putting in the number of tubes, observe the voltmeter and ammeter of the pulse source. The adjustment of frequency conversion speed will make the indication of the meter change within a certain range. In the range of small current, the follow-up adjustment will be more sensitive, and in the direction of fast adjustment, there will be a relatively slow section, It is suitable to be placed at the junction of dullness and sensitivity. It can also be said that when it is adjusted to a position which is not sensitive enough but can be processed normally, it can be adjusted back a little.
We mean ordinary material, normal thickness. For some special materials or ultra thick processing, frequency conversion adjustment should be targeted. For example, for materials with low conductivity, besides increasing the amplitude of high frequency source, the starting voltage of sampling should be increased and the tracking should be loosened. For large thickness machining, the speed of frequency conversion should be a little slower. It is better to have some no-load pulses, but also to give enough time to clean the gap and restore the insulation. If the tracking is too tight, the discharge gap will be reduced to a certain extent, and the black-and-white stripes will be shallow, but only the black-and-white color is light, and the finish is not good. Because the etch pit is the same as the commutation stripe, but it is easier to short circuit. If the wire is loose or the tension is uneven, resulting in overfeed and short circuit for a long time, the smoothness and efficiency will be lost
