[1]李立英,邹增大,韩彬.双电极焊条单弧焊组织与性能研究[J].焊管,2010,33(7):17-20.[doi:1001－3938（2010）07－0017－04]
　LI Li-ying,ZOU Zeng-da,HAN Bin.Study on Microstructure and Properties of Twin-electrode Single Arc Welding[J].,2010,33(7):17-20.[doi:1001－3938（2010）07－0017－04]
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双电极焊条单弧焊组织与性能研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
33
期数:
2010年第7期
页码:
17-20
栏目:
试验与研究
出版日期:
2010-07-28

文章信息/Info

Title:
Study on Microstructure and Properties of Twin-electrode Single Arc Welding
文章编号:
1001－3938（2010）07－0017－04
作者:
李立英1; 邹增大2; 韩彬1
（1.中国石油大学（华东） 机电工程学院，山东 东营 257061；2.山东大学 材料科学与工程学院，济南 250061）
Author(s):
LI Li-ying1; ZOU Zeng-da2; HAN Bin1
（1.College of Mechanical and Electronic Engineering，China University of Petroleum，Dongying 257261,Shandong，China；2.School of Materials Science and Engineering，Shandong University，Jinan 250061，China)
关键词:
双电极焊条; 单弧焊; 微观组织; 力学性能
Keywords:
twin electrode; single arc welding; microstructure; mechanical properties
分类号:
TG457.11
DOI:
1001－3938（2010）07－0017－04
文献标志码:
A
摘要:
首先分析了双电极焊条单弧焊焊接电流对焊缝成形的影响，利用扫描电镜对接头微观组织进行了观察。其次对熔敷金属的化学成分及力学性能进行了测定。最后对断口形貌以及夹杂物成分进行了分析。结果表明，焊接电流在180～220A之间焊缝成形最佳，接头从焊缝到母材由珠光体和铁素体组成的粗大柱状晶组织、过热粗晶区魏氏组织、细晶区铁素体和珠光体组织、母材组织等一系列梯状组织组成，熔敷金属的化学成分和力学性能均在标准要求的范围内，焊接接头的强度高于母材，呈韧窝断裂。
Abstract:
Firstly,the effect of welding current on weld appearance was discussed,and the microstructure of welded joint has been observed by means of SEM.Secondly,composition and mechanical properties of the deposited metal were measured.Finally,fracture morphology and the composition of inclusions were analyzed.The results indicated that the welded joint has well appearance when the welding current was from 180 to 220A,and the microstructure from the weld bead to heat affected zone was composed of a series of ladder-shaped microstructure including columnar,coarse-grained and fine-grained,base metal.In addition,the composition and mechanical properties of the deposited were in the standard scan,the tensile strength of welded joint was higher than that of the base metal,and the rupture was ductility.

参考文献/References:

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［2］潘希德, 沈风刚, 黄志河,等.纤维束型全位置立向下焊高效焊条的研制［Ｊ］.焊接,1997,(4):2-5.
［3］温家伶, 陈明清.高效碱性铁粉焊条的研制［Ｊ］.武汉理工大学学报(交通科学与工程版),2002,26(3):354-356.
［4］WILLIAM A.Nested Electrode for Metal-arc Welding［Ｊ］.Welding Journal,1951,30(11):557-564.
［5］韩彬,邹增大,曲仕尧,等.双电极钛钙型碳钢焊条电弧形态研究［Ｊ］.中国机械工程,2004,15(13):1198-1201.
［6］罗辉,邹增大,王新洪,等.双电极奥氏体不锈钢焊条单弧焊工艺研究［Ｊ］.材料科学与工艺,2007,15(4):560-563.

备注/Memo

备注/Memo:
作者简介：李立英（1976-），女，中国石油大学（华东）讲师，在读博士，主要从事工程材料以及焊接方面的教学与科研工作。
收稿日期：2009-12-11
更新日期/Last Update: