This paper analyzes the main composition and function of self-protection flux cored wire, presents the mechanical test results of welding X80 pipe steel (developed by Tianjin Jinqiao Company) using the self-protection flux cored wire.

• 摘要文章分析了自保护药芯焊丝的主要成分及作用，介绍了天津市金桥焊材集团有限公司研制的X80管道钢用自保护药芯焊丝的力学性能试验结果。