压力容器2016，Vol.33Issue(5)：56-61,6.DOI:10.3969/j.issn.1001-4837.2016.05.009
基于磁感应强度的25 Cr35 NiNb＋MA裂解炉管渗碳检测研究
Study on Detection of Pyrolysis Furnace Tubes Carburization Based on Magnetic Flux Intensity
摘要
Abstract
By using carburizing testers based on the principle of magnetic flux intensity variation,the mag-netic flux intensity of 25 Cr35 NiNb+MA material ethylene pyrolysis furnace tubes with different degrees of carburization after service were detected.Through a series of physical and chemical tests,carburizing layer thickness of furnace tubes above were detected.The relationship between the magnetic flux intensity and carburized layer thickness of typical material ethylene pyrolysis furnace tubes was established initial-ly,which provides basis for the carburized layer thickness detection of ethylene pyrolysis furnace tubes in service by carburizing testers.The typical microstructure of 25 Cr35 NiNb+MA ethylene pyrolysis furnace tubes at different parts with different thickness of carburized layer was characterized in this paper.关键词
乙烯裂解炉管/渗碳/磁感应强度/25Cr35 NiNb+MAKey words
ethylene pyrolysis furnace tubes/carburization/magnetic flux intensity/25 Cr35 NiNb+MA分类
机械制造引用本文复制引用
连晓明,陈学东,李毅,陈涛,叶娟..基于磁感应强度的25 Cr35 NiNb＋MA裂解炉管渗碳检测研究[J].压力容器,2016,33(5):56-61,6.基金项目
国家高技术研究发展计划（863计划）资助 （）
