管道用高纤维素焊条工艺性试验  

Experimental study on operative performance of high cellulose covered electrode for pipe welding

作　　者：刘海云[1] 栗卓新[1] 史耀武[1] 

机构地区：[1]北京工业大学材料科学与工程学院

出　　处：《焊接学报》2006年第1期57-60,共4页Transactions of The China Welding Institution

基　　金：山西省自然科学基金资助项目(20011049)

摘　　要：针对高纤维素焊条的工艺性,进行了大量的试验研究。确定了基于S iO2-TiO2-MgO-FeO渣系焊条配方,揭示出高纤维素焊条的熔滴过渡形态特征。指出细化熔滴、增加电弧的化学反应热、加入在500℃以上分解气体的物质可有效提高电弧吹力进而改善立向下焊接操作性。采用超低模数的钠水玻璃可以有效解决高纤维素焊条的碳化和压涂问题。Based on SiO_2-TiO_2-MgO-FeO slag system,a great deal of operative performance experiments for high cellulose covered electrode were carried out.The feature of metal transfer of the electrode was revealed.The results showed that operative performance in the vertical down welding can be improved through fine droplet,increasing chemical reactive heat in arc area,raising arc blow force.Using sodium water glass with super low mode,carbonization and press coating problems during manufacture can be solved.

关 键 词：高纤维素焊条 工艺性 管道焊接 

分 类 号：TG422.1[金属学及工艺—焊接]