The influence factors such as the hydrogen content in weld metal, the hydroscopicity in electrode coating and the toughness of weld metal of basic electrodes are studied.

研究了碱性焊条工艺性的影响因素，探讨了焊缝金属的含氢量、焊条药皮的吸湿性、焊缝金属的强韧化特性等。

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Achieve the welding on low carbon steel pieces and low content alloy pieces with acid electrodes and basic electrodes. It is the best products of ac arc welding machines.

焊机可以实现酸性焊条或对低碳钢制件和低合金制件的焊接，是目前交流弧焊机最先进的产品，而且适用于重型工业领域焊接使用。

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The physical and chemical properties of welding arc affecting the amount and toxicity of fumes generated during manual arc welding with low carbon steel basic electrodes are investigated.

本文研究了影响碳钢碱性焊条焊接烟尘量及其毒性的电弧物理及化学因素。

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