活性剂等离子弧焊焊接电弧与电弧力  

Activated Flux Plasma Arc and Arc Force

作　　者：柴国明[1] 张慧[1] 

机构地区：[1]北京航空制造工程研究所高能束流加工技术国防科技重点实验室,北京100024

出　　处：《航空学报》2008年第1期192-196,共5页Acta Aeronautica et Astronautica Sinica

基　　金：武器装备重点基金(614010);高能束流加工技术国防科技重点实验室基金(41318519)

摘　　要：针对活性剂等离子弧焊焊接过程,对焊接电弧外形的变化,焊接电弧力与活性剂之间的关系进行了研究,并建立了活性剂等离子弧焊焊接电弧轴向压强模型。研究结果表明:活性剂等离子弧焊焊接电弧收缩,弧尾翼消失,尾焰加大,电弧穿透力增强,电弧电压升高;活性剂等离子弧焊焊接电弧的温度分布比较紧凑,温度场外形窄,温度分布范围较集中,电弧径向温度梯度较大;活性剂等离子弧焊焊接电弧力的分布半径减小,压力峰值增大。The phenomenon of welding arc affected by the activated flux is studied, and the relationships between the welding arc force and the activated flux are studied. The model of axial pressure of activated flux PAW welding is developed. The results show that： the activated flux PAW welding arc is contractive, the arc tail disappears; the efflux plasma increases, the force of penetration is strengthened, the arc voltage is larger, the welding arc temperature distribution in activated flux PAW welding is compact, the outline of the welding arc temperature field is narrow, the range of the welding arc temperature distribution is comparatively concentrated, the welding arc radial temperature gradient is larger, the distribution radius of activated flux PAW welding arc force decreases, and the peak value of activated flux PAW welding arc force increases.

关 键 词：活性剂等离子弧焊 焊接电弧 电弧力 

分 类 号：TG456[金属学及工艺—焊接]