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4.焊接规范手工电弧焊的焊接规范通常包括焊条牌号、焊条直径、焊接电源种类与极性、焊接电流、电弧电压、焊接速度和焊接层数等。选择合适的焊接规范是生产中的一个重要问题,它直接影响焊缝成型和产品质量。 (1)焊条直径为了提高生产率,应尽可能选用较大直径的焊条,但直径过大会造成未焊透或焊缝成形不良等缺陷,因此,必须正确选择焊条
4. Welding Specifications Manual arc welding welding specifications usually include electrode grade, electrode diameter, welding power supply type and polarity, welding current, arc voltage, welding speed and welding layer number. Choosing the right welding code is an important issue in production, and it has a direct impact on weld formation and product quality. (1) electrode diameter In order to improve productivity, should be used as far as possible the larger diameter of the electrode, but the diameter of the General Assembly caused by impermeability or weld defects such as defects, therefore, must be the correct choice of electrode