清根方式对CO_2气保护药芯焊丝焊缝冲击韧度的影响  

Effect of Back Gouging Ways on Impact Toughness of CO_2 Gas-shielded Flux Cored Weld Metal

作　　者：熊征[1] 洪江波[1] 陈德斌[1] 桂赤斌[1] 

机构地区：[1]海军工程大学基础部,湖北武汉430033

出　　处：《机械工程材料》2004年第1期15-16,46,共3页Materials For Mechanical Engineering

摘　　要：研究了平对接焊接试板不同的清根方式对CO2气保护药芯焊丝焊缝冲击韧度的影响。结果表明,清根方式对焊缝冲击韧度有明显影响,用碳弧气刨清根得到的焊缝冲击韧度最好,而用酸性衬垫得到的焊缝冲击韧度最差。The effect of back gouging ways on impact toughness of CO_2 gas-shielded flux cored weld metal was investigated.It was found that impact toughness of weld metal was maximum using carbon arc air gouging, and it was minimum using acid backing.

关 键 词：清根 药芯焊丝 焊缝冲击韧度 

分 类 号：TG441[金属学及工艺—焊接] TG422.3