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叙述了粗丝ＣＯ＿２自动焊工艺试验情况，并对试验结果进行了分析，阐述了实际生产应用中应注意的问题，指出ＣＯ＿２自动焊在厚板构件的焊接生产中具有较好的应用价值．
The experimental conditions of CO_2 automatic welding process are described, and the test results are analyzed. The problems that should be noticed in the actual production and application are explained. It is pointed out that CO_2 automatic welding has good application value in the welding of thick plate components.