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某碱回收锅炉Ⅲ级(高温)过热器发生严重腐蚀,通过对燃料、材质、腐蚀产物成分分析及金相分析,确定造成腐蚀的主要原因是设计缺陷和燃料问题。
A grade Ⅲ (high temperature) superheater of an alkali recovery boiler is severely corroded. The main causes of corrosion caused by fuel, material, composition analysis of corrosion products and metallographic analysis are design defects and fuel problems.