利用钒钛铁精矿中的铁和钛元素,以钒钛铁精矿、石墨为主要原料,按铁基摩擦材料的成分添加其他组份,采用原位合成技术,实现合成与烧结一体化,制备铁基摩擦材料.对钒钛铁精矿还原过程中的热力学进行计算和分析,利用TGDSC检测方法对还原过程中的质量变化进行分析.结果表明:当温度高于979K时,钒钛铁精矿中Fe氧化物和Ti氧化物相继发生还原反应,其还原过程为:首先Fe3O4被还原,其次是钛磁铁矿和钛铁矿发生反应生成Fe和Ti的氧化物,最后是Ti的各阶氧化物反应生成TiC.本实验根据分析结果,制定了合理的工艺路线,获得了组织致密,结合优良的铁基摩擦材料.
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