High-temperature self-lubricating materials based on H13 steel are prepared by the powder metallurgy method. The sintering process, phase addition and high-temperature testing of the material are studied so that the mechanical and wear performance of the composites can be optimized. The results show that the optimum sintering process is 2 h at a temperature of 1250 °C. When the contents of Cr₂C₃ and CaF₂ are 10%, the mechanical and sintering properties of the composites are acceptable. The relative density reaches 80.2% and the bending strength reaches 720.2 MPa. Moreover, CaF₂ effectively reduces the friction coefficient and wear rate of the material. The friction coefficient decreases to a minimum of 0.24, but the wear rate increases to a maximum of 7.26 × 10⁻⁵ mm²/min at a load of 1065 g. Cr₂C₃ helps to alleviate the oxidation of the composites, and the precipitation of CaF₂ causes network cracks to reduce the thermal fatigue performance.

采用粉末冶金法制备了基于H13钢的高温自润滑材料。研究了材料的烧结工艺，相添加和高温测试，以便可以优化复合材料的机械性能和耐磨性能。结果表明，最佳的烧结过程是在1250°C下2 h。当Cr ₂ C ₃和CaF ₂的含量为10％时，复合材料的机械和烧结性能是可以接受的。相对密度达到80.2％，弯曲强度达到720.2 MPa。此外，CaF ₂有效降低材料的摩擦系数和磨损率。摩擦系数降低到最小0.24，但是在1065 g的载荷下，磨损率增加到最大7.26×10 ^-5  mm ² / min。Cr ₂ C ₃有助于减轻复合材料的氧化，而CaF ₂的沉淀会引起网络裂纹，从而降低热疲劳性能。