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试述交流弧焊机的使用与维护应注意那些事项?

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正确答案:

(1) 应按照焊机的额定焊接电流和负载持续率使用,不要超载。

(2) 焊机不允许长时间短路。

(3) 调节电流应在空载时运行。

(4) 经常检查导线接触、保险丝、接地、调节机构等并试之完好。

(5) 保持焊机清洁,干燥通风,防止灰尘和雨水侵入。

(6) 放置平稳,工作完毕切断电源。

(7) 焊机要定期检修。

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