不锈钢GTAW焊管生产中焊缝熔透易变性及其控制对策  

Variation And Control of Weld Fusion in Stainless Steel GTAW Welded Pipe Production

作　　者：何德孚[1] 曹志梁 蔡新强 周志江 

机构地区：[1]上海交通大学,200030 [2]浙江久立不锈钢管公司

出　　处：《焊管》2002年第3期9-17,共9页Welded Pipe and Tube

摘　　要：在国内外不锈钢自动 GTAW/TIG焊接生产、特别是连续焊管生产中 ,同一种牌号不锈钢只因产地或炉号不同 ,焊缝的熔深或熔透性会有显著差异的现象已使相关的研究者困扰了 30余年。本文根据熔池动力学的研究成果分析产生这种熔深易变性的原因 ,指出了生产中有效控制这种易变性的对策。During the stainless steel auto GTAW/TIG welding production, the same stainless steel weld fusion or penetration will differ because of the different manufacturer and heat no., this has puzzled the researcher for 30 years. Based on research of melting pool of dynamics, the article discussed the reason of melting variation, and pointed out the countermeasure for effective control the variation in production.

关 键 词：不锈钢焊管 GTAW TIC焊 熔深易变性 熔池对流 表面活化 控制对策 

分 类 号：TG457.6[金属学及工艺—焊接] TG457.11