电焊机2017，Vol.47Issue(10)：29-34,6.DOI:10.7512/j.issn.1001-2303.2017.10.06
不锈钢与耐候钢MIG电弧钎焊工艺
MIG arc brazing technology of stainless steel and weathering steel
戴忠晨 1周成候 1孟宪伟 1彭元朝 1刘杰 2周龙早2
作者信息
- 1. 中车南京浦镇车辆有限公司,江苏南京210031
- 2. 华中科技大学材料科学与工程学院,湖北武汉430074
- 折叠
摘要
Abstract
The butt joints of SUS304 stainless sheet steel and weathering sheet steel are carried out technological test with manual MIG arc brazing.Meanwhile,welding procedure qualification is executed according to the relevant technical codes.The results show that the MIG arc brazing is successfully used for butt joint brazing of SUS304 stainless sheet steel and Q355GNHD weathering sheet steel.The appearance of weld is good,and the weld is defect-free by using X-ray detection.The average tensile strength of joint is 339.58 MPa,and the strength coefficient of joint is 78.97％.The penetrant cracks between SUS304 austenitic stainless steel and copper base brazing filler metal are observed by optical microscope,and the production mechanism of penetrant crack is discussed.关键词
不锈钢/耐候钢/MIG电弧钎焊/渗透裂纹Key words
stainless steel/weathering steel/MIG arc brazing/penetrant crack分类
矿业与冶金引用本文复制引用
戴忠晨,周成候,孟宪伟,彭元朝,刘杰,周龙早..不锈钢与耐候钢MIG电弧钎焊工艺[J].电焊机,2017,47(10):29-34,6.
