电弧焊时,焊接电流的选择正确与否,会直接影响焊接质量。因此正确地选择焊接电流是很重要的。那么,如何选择焊接电流呢? 通常,可以按照书本上的公式来计算。但是对于熟练的焊工来说,完全可以丢开公式,而根据实践经验来选择。这是什么原因呢?当然是通过千百次实践的,掌握了选择电流的规律。我们把这些规律归纳一下,供初学焊接的同志参考。 Arc welding, the welding current selection is correct or not, will have a direct impact on the quality of welding. Therefore, the correct choice of welding current is very important. So, how to choose the welding current? Usually, can be calculated according to the formula on the book. However, for a skilled welder, it is entirely possible to dismiss the formula and choose based on practical experience. What is the reason? Of course, through the practice of hundreds of times, we have mastered the law of selecting current. We summarize these rules for comrades for beginner welding reference.