12Cr2Mo1V钢凸台附加填充丝埋弧堆焊工艺研究  

Research of submerged arc welding buildup technology of 12Cr2Mo1V steel boss using additional filing wire

作　　者：王雪骄 何鹏 晏君文 吴成林 WANG Xuejiao;HE Peng;YAN Junwen;WU Chenglin(Erzhong(Deyang)Heavy Equipment Co.,Ltd.,Deyang 618000,China)

机构地区：[1]二重(德阳)重型装备有限公司,四川德阳618000

出　　处：《压力容器》2024年第4期16-21,79,共7页Pressure Vessel Technology

摘　　要：针对12Cr2Mo1V钢加氢反应器壳体凸台采用单丝埋弧焊进行堆焊、制造效率低的问题,研究了采用附加填充丝埋弧焊的焊接方法堆焊12Cr2Mo1V材质凸台本体的工艺可行性。研究结果表明,在12Cr2Mo1V钢上采用附加填充丝埋弧焊进行本体堆焊,焊接工艺性良好;其工艺评定试验的各项力学性能完全满足母材的要求,特别是-30℃夏比KV_(2)型缺口冲击试验冲击值均≥54 J,抗回火脆化倾向评定试验结果均满足v Tr54+3Δv Tr54≤0℃的要求。与单丝埋弧堆焊相比,两枪六丝附加填充丝埋弧堆焊凸台可提高生产效率200%~250%。该项工艺研究在满足加钒钢凸台性能的前提条件下,能极大缩短凸台制造周期、节能减排,为加氢反应器先进绿色制造的发展提供了新的制造手段。The boss of the 12Cr2Mo1V steel hydrogenation reactor shell is usually welded by single-wire submerged arc welding,which has low manufacturing efficiency.The feasibility of welding the 12Cr2Mo1V boss body by using the welding method of additional filler wire submerged arc welding was studied.The research results show that the welding processability is good when the additional filler wire submerged arc welding is used for body cladding on 12Cr2Mo1V steel;the mechanical properties of its process qualification test fully meet the requirements of the base metal,especially the KV_(2) impact value of the-30℃Charpy notch impact test is≥54 J,and the results of the temper embrittlement resistance tendency evaluation test meet the requirements of vTr54+3ΔvTr 54≤0℃.Compared with single-wire submerged arc welding,boss submerged arc welded by two guns with six-wire additional filler wires can increase production efficiency by 200%to 250%.Under the premise of meeting the performance of vanadium-doped steel boss,this process research can greatly shorten the boss manufacturing cycle,save energy and reduce emissions,and provide a new manufacturing method for the development of advanced green manufacturing of hydrogenation reactors.

关 键 词：附加填充丝埋弧焊 12Cr2Mo1V钢 凸台 堆焊 

分 类 号：TH142.2[一般工业技术—材料科学与工程] TG142.33[机械工程—机械制造及自动化] TG445[金属学及工艺—金属材料]