【摘要(yao)】：準確獲取焊(han)接條件(jian)下熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)表(biao)(biao)面(mian)(mian)張(zhang)力的(de)基(ji)礎數據對(dui)深入理(li)解焊(han)接過程(cheng)中熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)流動及傳熱機制、焊(han)縫缺(que)陷形(xing)成等(deng)具有重要(yao)意(yi)義，但實時測量十分困難。采用(yong)激光視覺法測量了單一組元(TiO_2，CaF_2)及二組元(30%TiO_2+70%CaF_2，70%TiO_2+30%CaF_2)活(huo)性(xing)劑(ji)下304不銹鋼脈(mo)沖鎢極氬弧焊(han)熔(rong)(rong)(rong)(rong)池(chi)(chi)振蕩頻(pin)率，并根據特(te)定模(mo)式下熔(rong)(rong)(rong)(rong)池(chi)(chi)特(te)征頻(pin)率與表(biao)(biao)面(mian)(mian)張(zhang)力的(de)解析模(mo)型計算了熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)表(biao)(biao)面(mian)(mian)張(zhang)力，分析了不同(tong)組元活(huo)性(xing)劑(ji)對(dui)熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)平(ping)均表(biao)(biao)面(mian)(mian)張(zhang)力的(de)影響規律，在此基(ji)礎上研(yan)究了不同(tong)組元活(huo)性(xing)劑(ji)對(dui)焊(han)縫熔(rong)(rong)(rong)(rong)深的(de)影響和增(zeng)加熔(rong)(rong)(rong)(rong)深的(de)機理(li)。結果表(biao)(biao)明，TiO_2能夠改變熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)表(biao)(biao)面(mian)(mian)張(zhang)力溫度梯度，使(shi)熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)流動方向發(fa)生變化(hua)，CaF_2能夠降(jiang)低(di)熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)表(biao)(biao)面(mian)(mian)張(zhang)力絕對(dui)值(zhi)，使(shi)熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)流速(su)增(zeng)加；二組元活(huo)性(xing)劑(ji)增(zeng)加熔(rong)(rong)(rong)(rong)深是熔(rong)(rong)(rong)(rong)池(chi)(chi)金(jin)(jin)(jin)屬(shu)(shu)流速(su)增(zeng)加和表(biao)(biao)面(mian)(mian)張(zhang)力溫度梯度改變共同(tong)作(zuo)用(yong)的(de)結果。