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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Therefore, the law of welding seam back chipping was studied based on the newly developed automatic back chipping machine with a disk-type non-consumable electrode.

因此，本文基于新研制的非熔化盘式电极自动清根技术，对焊缝清根规律进行了研究。

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Therefore, the law of welding seam back chipping was studied based on the newly developed automatic back chipping machine with a disk-type non-consumable electrode.

因此，本文基于新研制的非熔化盘式电极自动清根技术，对焊缝清根规律进行了研究。

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