Surfacing process test is made on Q235 steel substrate by shielded metal arc welding process using electrode CHR322 at different welding current condition.
In this paper, design principle on gun of automatic CO2 gas shielded welding with thick electrode is discussed.
论述了粗丝co2自动焊焊枪的设计原理，并对气流在焊炬中的流动情况和对熔池保护效果作了简要介绍。
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Surfacing process is conducted on the substrate of steel A3 by shielded metal arc welding process using electrode CHR322 under different welding current conditions.