In this paper, it has been studied by the slope - controlled SCR rectifier that external characteristic of welder relate to arc digging action and the strong arc force of arc welding power source in manual arc welding formed.

 
  • 利用一種特制的變結構可控硅整流焊機,研究不同焊機外特性對電弧穿透力的影響;探討了手工電弧焊強電弧力形成機理;并且指出正確設計電源外特性,是獲得較強電弧穿透力的途徑。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan