详细论述了熔铝灰铁坩埚的氧化腐蚀、铝液腐蚀及其腐蚀机制 ,介绍了能够提高灰铁坩埚抗高温氧化能力的铸态表面合金化法和能够提高灰铁坩埚抗铝液腐蚀能力的调整成分法与浸渗保护法 ,这些方法通过减少腐蚀由坩埚表面向基体内部发展的各种“通道” ,有效地改善了灰铁坩埚抗腐蚀性能 ,提高了坩埚使用寿命 In this paper, the oxidation corrosion of molten aluminum gray iron crucible, the corrosion of molten aluminum and the corrosion mechanism of molten aluminum are discussed in detail. The cast surface alloying method which can improve the high temperature oxidation resistance of gray iron crucible and the ability of improving the corrosion resistance of gray iron crucible against molten aluminum Adjustment method and infiltration protection method. These methods effectively improve the corrosion resistance of gray iron crucible by reducing the corrosion of various “channels” developed from the crucible surface to the interior of the substrate, and improve the service life of the crucible