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通过化学，金相和扫描电镜手段，分析了产生爆管的主要原因是由于在相对较高的运行温度下长期过热所造成的。提出了预防屏式再热器爆管的有效措施。
The chemical, metallurgical and scanning electron microscopic methods were used to analyze the main causes of squibing due to long-term overheating at relatively high operating temperatures. An effective measure to prevent the screen reheater tube explosion is proposed.