EAST超导磁体SUS316LN不锈钢管焊接工艺  

WELDING TECHNOLOGY OF SUS316LN TUBES USED IN SUPERCONDUCTING MAGNETIC SYSTEM OF EAST

作　　者：吴杰峰[1] 陈思跃[1] 翁佩德[1] 高大明[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥市230031

出　　处：《焊接》2005年第9期21-24,共4页Welding & Joining

摘　　要：EAST纵场(TF)和极向场(PF)线圈采用迫流冷却超导导体(CICC),该导体由Nb—Ti超导线经多级绞缆绞成超导缆和外加壁厚1.5mm的铠甲组成。铠甲由SUS316LN奥氏体不锈钢无缝钢管(每根长约10m)通过自动氩弧焊对接成600m圆管,超导缆首先穿人薄壁圆管铠甲中,然后缩径成方,形成方截面的600mCICC导体。着重介绍在研制CICC导体过程中焊接和质量控制两个重要工艺技术及研究成果。Force flow cooling superconducting cable- in- onduit conductor （CICC） was used for both of FAST toroidal field （TF） and poloidal field （PF） coils. The conductor consisted of multi - stage Nb.- Ti superconducting cable and 1.5 mm thick square jacket which was automatic argon - arc welded by SUS316LN austenitic stainless steel seamless tubes （about 10 m length each） to form 600 m round pipe. The cable was pulled through a thin wall circular jacket and then compacted to square cross-section conductor. The welding procedure, quality control and research findings were introduced.

关 键 词：CICC导体 SUS316LN奥氏体不锈钢 自动焊接 质量控制 超导磁体 焊接工艺 EAST 不锈钢管 奥氏体不锈钢 薄壁圆管 

分 类 号：TG457.11[金属学及工艺—焊接] TM265[一般工业技术—材料科学与工程]