大型热压罐罐体齿法兰检验及缺陷案例分析  

Inspection of Tooth Flange on Tank and Case Analysis of Defects Based on Large Autoclave

作　　者：刘明威 徐梦 王超 王圣洁 高遥 LIU Ming-wei;Xu Meng;WANG Chao;Wang Sheng-jie;GAO Yao(Hangzhou Special Equipment Inspection and Research Institute,Zhejiang Hangzhou 310051,China;Zhejiang Academy of Special Equipment Science,Zhejiang Hangzhou 310009;Zhejiang Shengjie Titanium Technology Company Limited,Zhejiang Jiaxing 314400)

机构地区：[1]杭州市特种设备检测研究院,浙江杭州310051 [2]浙江省特种设备科学研究院,浙江杭州310009 [3]浙江圣洁钛业科技有限公司,浙江嘉兴314400

出　　处：《化学工程与装备》2023年第9期211-214,共4页Chemical Engineering & Equipment

摘　　要：齿啮式快开门压力容器容易在齿法兰根部产生损伤裂纹。本文为找出齿根开裂的原因,基于某大型热压罐开展磁粉检测和硬度检测,并对结果进行分析。研究发现长期循环载荷的存在是齿根产生裂纹的主要原因,对裂纹进行打磨会导致表面淬硬,更易引发裂纹产生。需从原材料、锻造工艺、表面处理以及定期检测方面采取合适措施预防减少裂纹产生。Tooth-locked quick actuating pressure vessels are prone to damage cracks at the root of the tooth flange.In this paper,in order to find out the cause of tooth root cracking,magnetic particle testing and hardness testing were carried out based on a large autoclave,and the results were analyzed.It is found that the presence of long-term cyclic load is the main reason for cracking in the tooth root,and polishing the crack will lead to surface hardening,which is more likely to trigger crack generation.It is necessary to take appropriate measures to prevent and reduce cracks in terms of raw materials,forging process,surface treatment and regular inspection.

关 键 词：大型热压罐 齿法兰 裂纹 表面淬硬 应力分析 

分 类 号：TH49[机械工程—机械制造及自动化]