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严重的金属飞溅是粗丝CO_2焊接时的一个重要问题,由此而引起的损失金属量占焊丝熔化量的10～20％,其所造成的能源经济损失、焊缝质量下降及劳动条件恶化,极大地影响了粗丝CO_2焊接方法的推广使用。影响粗丝CO_2焊接时飞溅的因素较多,但焊接电压和电流、不同的电源外特性是影响飞溅最重要的因素之一。因此,研究电弧电压(U_f)、电弧电流(I_f)及不
Serious metal spatter is an important issue in the coiling of CO 2 wire. The amount of metal loss caused by this method accounts for 10-20% of the amount of wire melting. The economic losses of energy, the deterioration of weld quality and the deterioration of working conditions, It greatly affects the popularization and application of CO_2 welding method of thick wire. There are many factors that affect the spattering of CO_2 wire during welding. However, the welding voltage and current, different power supply external characteristics are one of the most important factors affecting the spattering. Therefore, study the arc voltage (U_f), the arc current (I_f) and no