火电厂过热器管爆管分析
Analysis of Explosion of Superheater Tube in Thermal Power Plant
江国栋, 唐庆顺, 洪茂林, 姚建盛
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作者单位：(福建龙岩学院 物理与机电工程学院, 福建 龙岩 364012)
中文关键字：长时超温； 短时超温； 过热器管； 金相组织
英文关键字：long-time over temperature; short-time over temperature; superheater tube; microstructure
中文摘要：对屏式过热器管进行了宏观检查、金相显微组织观察和分析以及拉伸性能测试。结果表明，该屏式过热器管失效的主要原因是长时超温与短时超温共同作用的结果。
英文摘要：The macro-examination of superheater tube, metallographic observation and microstructure analysis were carried out, and the mechanical properties were tested. The results show that: the main reasons for the platen superheater tube failure are the inter-action results of long-time over temperature and short-time over temperature.