对CaCO_3-CaF_2-SiO_2渣系烧结焊剂的试验研究  

Experimental study on agglomerated flux with CaCO_3-CaF_2-SiO_2 slag system

作　　者：宗琳[1] 王宗杰[2] 

机构地区：[1]沈阳化工学院机械工程学院,辽宁沈阳110142 [2]沈阳工业大学材料科学与工程学院,辽宁沈阳110142

出　　处：《焊接技术》2008年第1期40-42,共3页Welding Technology

摘　　要：研制了一种新型埋弧焊烧结焊剂,其渣系为CaCO3-CaF2-SiO2,研究了其各种组分对焊剂焊接工艺性能和熔敷金属中扩散氢含量影响的规律,其碱度BⅡW为2.3、脱渣性良好、焊缝成形美观、熔敷金属中扩散氢含量达到低氢水平、与合适的焊丝配合使用后,其焊缝金属力学性能达到650 MPa级的低合金钢埋弧焊焊剂要求。A new type agglomerated flux with CaCO3-CaF2-SiO2 slag system for SAW was prepared.The effects of each ingredient on the flux technical characteristics and the diffused hydrogen content in deposited metal were discussed.It has good slag removability and favorable welding formation.The diffused hydrogen content in the deposited metal reached the level of low hydrogen.Matched with a suitable wire,the mechanical characteristics of flux meet the demand of 650 MPa low-alloy-steel SAW flux.

关 键 词：烧结焊剂 管线钢 低温韧性 

分 类 号：TG423[金属学及工艺—焊接]