论文部分内容阅读
传统的CO_2气体保护焊工艺存在飞溅大,焊缝成形差等问题,影响其推广和使用。近年来国内外出现一种可控过渡的新方法,即控制焊接参数与短路过渡状态相适应。郑州机械研究所研制的三钢球送丝机,为实现这一方法提供了重要手段,并研究成功半周脉动送丝CO_2焊新工艺。该工艺具有飞溅小、成形好、焊接过程稳定等优点。为在生产中推广这种工艺,对NBC1-250型气体保护焊机(上海华东
The traditional CO 2 gas shielded welding process has the problems of large splashes and poor weld forming, which affects its popularization and use. In recent years, a new method of controllable transition appears at home and abroad, which is to control the welding parameters and adapt to short-circuit transition state. Zhengzhou Steel Institute developed three ball wire feeder, in order to achieve this method provides an important means of research and successful half-week pulsed wire feed CO2 welding new technology. The process has the advantages of small spatter, good forming, stable welding process and the like. To promote this process in production, the NBC1-250-type gas shielded welder (Shanghai East China