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85问答库 > 逆变电焊机正接好用还是反接好用

逆变电焊机正接好用还是反接好用

逆变电焊机正接好用还是反接好用

2025-04-07 08:25:57

推荐回答（1个）

回答1：

不行，保险丝一下就烧掉，交流焊机不会坏，直流焊机就报废。直流电焊机有正负极。有符号表示。正接:焊条接电焊机的负极，焊件接电焊机的正极;反接:是指焊件接电源的负极，焊条接电源正极
极性的选用:1, 在使用碱性焊条时，应采用直流反接;2,在使用酸性焊条时一般采用交流焊机。当采用直流焊机时，直流正接适应于焊接较厚的板材，阴阳极区温度大于阴极区的温度，焊件获得较大的熔深;而焊接薄板应采用直流反接，因熔深浅，可防止烧穿。

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