镍基合金在碳钢与不锈钢焊接中的应用

摘要

Dissimilar material welding applied in the petrochemical industry,electric power in-dustries is very extensive;its weldability is complex,easy to produce weld defects.The weld-ability of dissimilar material welding joint between pearlitic type carbon steel and austenitic stain-less steel is analyzed.The problems that welding joint will be appeared using 309 type welding material under high temperature for a long time are expounded.The parameters with nickel base welding material for dissimilar material is determined by welding test and the results show weld-ing joints can obtain good quality using established procedure.%异种钢焊接在石油化工、电力等行业中应用极为广泛，其焊接性较为复杂，焊接中容易产生各种缺陷。对珠光体型碳钢与奥氏体不锈钢异种接头的焊接性进行了分析，阐述了采用309型焊接材料焊接的异种钢接头在长期高温作用下容易出现的问题。通过焊接试验确定了采用镍基焊接材料焊接异种钢的工艺参数，焊接试验结果表明，采用所制定的焊接工艺可以获得质量良好的焊接接头。