1.This paper compared CO 2 gas shielded arc welding to argon gas shielded arc w elding and arc welding with welding rod in the aspect of welding tie-in test an d their application in engineering mechanism. It was proved that CO 2 gas shiel ded arc welding has the advantage of low cost, high efficiency and better weldin g quality.
通过对 CO_2 气保焊、富氩气保焊、焊条电弧焊 3种焊接方法进行焊接接头试验和对比分析 ,以及在工程机械中的应用 ,证明了 CO_2 气保焊具有成本低 ,效率高 ,焊接质量好等优点。
