2209型双相不锈钢丝极埋弧焊材料的研制  

Development of submerged arc welding materials for 2209 duplex stainless steels

作　　者：周世锋[1] 王国佛[1] 王慧源[1] 贾玉力[1] 

机构地区：[1]机械科学研究院 哈尔滨焊接研究所,150080

出　　处：《焊接》2012年第5期49-52,71-72,共4页Welding & Joining

摘　　要：研制开发了2205双相不锈钢焊接用丝极埋弧焊材料,包括SAW2209焊丝及配套烧结焊剂SJ676,改善了目前国内双相不锈钢埋弧焊焊接材料大部分依赖进口的现状。研制的SJ676焊剂,采用CaF_2-Al_2O_3碱性渣系,碱度为2.6,具有良好的焊接工艺性及冶金性能。熔敷金属理化性能与力学性能优异,无晶间腐蚀倾向。焊接接头各区域铁素体含量均在30%～70%范围内,性能满足标准要求。Submerged arc welding materials for 2205 duplex stainless steels were developed,which includes SAW2209 welding wires and the matching welding flux(SJ676).The basic slag system of CaF2-Al_2O_3 was used in developing SJ676 welding flux with the alkalinity of 2.6, which has good weldability and metallurgy.Excellent physical,chemical and mechanical properties were obtained in the deposited medal without intergrannular corrosion.The ferrite number ranged from 30%to 70%in all the zone of welded joint,the properties of which meet standard the requirements.

关 键 词：双相不锈钢 丝极埋弧焊 焊接材料 

分 类 号：TG423[金属学及工艺—焊接]