某DMTO装置核心设备急冷塔筒体内壁腐蚀分析及修复  

Analysis and Repair of Corrosion on the Inner Wall of the Quenching Tower of a DMTO Device Core Equipment

作　　者：王新农 顾鹏 张力 孙亚杰 WANG Xinnong;GU Peng;ZHANG Li;SUN Yajie

机构地区：[1]江苏省特种设备安全监督检验研究院镇江分院,江苏镇江212114 [2]二重(镇江)重型装备有限责任公司,江苏镇江212000

出　　处：《大型铸锻件》2024年第4期75-79,共5页Heavy Casting and Forging

摘　　要：分析了急冷塔筒体内壁点蚀缺陷形成原因。为防止点蚀再次发生,使用综合性能较好的E309L不锈钢焊材,在急冷塔内壁缺陷区域以堆焊的方式进行修复,堆焊完立即进行消氢热处理,满足生产需求。并通过工艺性试验证明堆焊修复方法可行。The reasons for the formation of pitting defects were analyzed on the inner wall of the quenching tower.To prevent pitting corrosion from happening again,the welding materials made of stainless steel are used to repair the defect area on the inner wall of the quenching tower by surfacing welding.After surfacing welding,the dehydrogenation heat treatment is immediately carried out to meet the production needs.And it has been proven through process tests that the surfacing welding repair method is feasible.

关 键 词：急冷塔 点蚀 堆焊 

分 类 号：TG47[金属学及工艺—焊接]