相控阵超声检测在超超临界机组异种钢焊缝上的应用  

Application of Phased-array Ultrasonic Testing in Dissimilar Steel Welds of Ultra-supercritical Power Units

作　　者：刘炳伦 吴克锋 李大才 王家庆 吴戈杨 温文森 LIU Binglun;WU Kefeng;LI Dacai;WANG Jiaqing;WU Geyang;WEN Wensen(Guangdong Datang International Leizhou Power Generation Co.,Ltd.,Zhanjiang 515723;East China Electric Power Testing and Research Institute of China Datang Corporation Science and Technology General Research Institute Ltd.,Hefei 231299;Guangzhou Pali Testing Technology Co.,Ltd.,Guangzhou 510730)

机构地区：[1]广东大唐国际雷州发电有限责任公司,广东湛江515723 [2]中国大唐集团科学技术研究总院有限公司华东电力试验研究院,安徽合肥包231299 [3]广州帕理检测技术有限公司,广东广州510730

出　　处：《电力安全技术》2024年第7期54-57,共4页Electric Safety Technology

摘　　要：异种钢焊接接头在超超临界机组中广泛应用,而异种钢焊缝质量影响整体结构的安全,焊缝中如存在危害性缺欠对质量影响很大,因此要重视焊缝结构的安全性能,并对焊缝质量进行严格检测,对此提出异种钢焊缝相控阵超声检测方案,以解决异种钢焊缝在非不锈钢侧熔合线处产生的微裂纹的检测问题。Dissimilar steel welded joints are widely used in ultra supercritical power units,whereas the quality of dissimilar steel welds hinder the safety of integral configuration,and if a harmful defect occurs in the welds,it might bring about largely adverse effects on its quality.Therefore,it is necessary to pay more attention on the safety performance of welded structures and stringent testing should be carried out on the weld quality,in view of which a phased-array ultrasonic testing scheme for dissimilar steel welds is proposed so as to solve the problem of micro-cracking detection of dissimilar steel welds at the fusion line on the non-stainless steel side.

关 键 词：相控阵超声检测 超超临界二次再热机组 异种钢焊缝检测 无损检测 

分 类 号：TM307[电气工程—电机]