The result shows that the temperatures of molten pool surface and bottom are lower than those ones in arc welding. This is main cause of formation of low dilution rate.
结果表明，熔池表面和底部的温度都低于电弧焊，这是造成低稀释率的根本原因；
The synthesis results are that the dilution rate of surfacing of carbon electrode arc constrained by argon is low and the transfer coefficient of alloy elements is high.
其综合作用使碳极氩气拘束电弧堆焊稀释率低，合金元素过渡系数高。
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