锅炉高温过热器裂纹产生原因分析  

Crack Analysis on High Temperature Superheater Unit of Boiler

作　　者：刘海侠[1] 

机构地区：[1]华北电力大学,河北保定071003

出　　处：《河北电力技术》2007年第5期3-4,共2页Hebei Electric Power

摘　　要：通过对锅炉高温过热器出现的大面积裂纹进行分析,证明该裂纹属于再热裂纹。同时对G102钢再热裂纹敏感温度进行了讨论,认为初始应力水平会改变材料的再热裂纹敏感性曲线。Through analysis on the widespread crack in high temperature superheater unit of boiler,stress relief cracking has been proved.Base on discussion on the sensitive tempe-rature of stress relief cracking,it is regarded that initial stress level could change the sensibility curve for the same metal on stress relief cracking.

关 键 词：锅炉 过热器 G102钢 再热裂纹 

分 类 号：TK223.2[动力工程及工程热物理—动力机械及工程]