CAJ | 학술논문

通过宏观观察、金相分析、扫描电镜分析、能谱分析化学成分等一系列手段，对某厂区冷火炬液气化器在检修时发现管板产生的开裂渗漏问题进行分析研究。结果表明：管板的化学成分与标准不符；管程中的介质使管板表面产生氧化层以及温度差所产生的热应变循环作用是裂纹产生及扩展的主要原因。幵提出改进方案。
통과굉관관찰、금상분석、소묘전경분석、능보분석화학성분등일계렬수단，대모엄구랭화거액기화기재검수시발현관판산생적개렬삼루문제진행분석연구。결과표명：관판적화학성분여표준불부；관정중적개질사관판표면산생양화층이급온도차소산생적열응변순배작용시렬문산생급확전적주요원인。견제출개진방안。
Theproblem of cracking and leakage about the tube-plate of torch cold liquid vaporizerwas studiedby the methods of macroscopic observation, metallurgical analysis, scanning electron microscopy (SEM), EDX chemical composition and soon. Theresults showthat, chemicalcomposition of the tube-plate does not match the standard;oxide scaleon the surface oftube plateand cyclic thermal strain generated by the temperature difference are main reasons to causecracks. Atlast, improvements were put forward.