Reason of invalidation failure was analyzed on expansion joint of second stage exchanger of mixture hydrogen in semi-regenerative reformer.
分析了半再生重整装置二段混氢换热器膨胀节失效破裂的原因。
Firstly, it indicates the path choice of invalidation of administrative contract and its reason.
笔者首先开宗明义，说明了界定行政契约无效的路径选择及其原因。
The result showed that the direct reason of reboiler invalidation was the intercrystalline stress corrosion and crack caused by micro-chloride in the medium.
结果表明，介质中所含的微量氯离子引起的晶间型应力腐蚀开裂导致再沸器失效。
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