Research on welding technology of N08800 and F11 CL.3 dissimilar steels

N08800与F11 CL.3的异种钢焊接工艺研究 Research on welding technology of N08800 and F11 CL.3 dissimilar steels 崔跃双 CUI Yueshuang 1 first-author 董雷 DONG Lei 1 北京航天石化技术装备工程有限公司 北京航天石化技术装备工程有限公司 Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation Limited Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation Limited 从某大型开工炉项目建造中UNS N08800与A182 F11 CL.3异种钢焊接出现的问题入手,针对铁素体合金钢及铁镍合金材料焊接特性截然相反且焊后热处理状态要求不同的焊接特点和两种材料在设备中的结构特点,对两种材料钨极气体保护焊的工艺方法进行了探讨,制订了焊接及焊后热处理工艺,并进行焊接性能试验,根据试验结果制定了切合实际的工艺方案,明确了焊接过程中的质量控制要点,解决了施工难题。 Starting with the welding problems of UNS N08800 and A182 F11 CL.3 dissimilar steels in the construction of a large start-up furnace project,aiming at the contra-dictory welding characteristics of ferritic alloy steel and iron nickel alloy materials and the structural characteristics of these two materials in the equipment,the tungsten gas shielded welding process methods of these two materials are discussed,the welding and post welding heat treatment processes are formulated,and the welding performance test is carried out.According to the test results,a practical process scheme is developed,the key points of quality control in the welding process are clarified,and the construction problems are solved. 异种钢 堆焊隔离层 焊接工艺 焊后热处理 dissimilar steel buttering weld process PWHT TG457.11 2022-03-08 1 51