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通过对灰铸铁金属型离心铸铁管生产过程的热疲劳模拟试验，探索了不同基体组织灰铸铁的热疲劳性能，并从多方面分析了铁素体灰铸铁的热疲劳性能好于珠光体灰铸铁的原因。
Through the thermal fatigue simulation test of gray cast iron metal centrifugal cast iron pipe production process, the thermal fatigue properties of gray iron castings with different matrix were explored. The thermal fatigue properties of ferrite gray cast iron were better than those of pearlite gray cast iron s reason.