采用离心铸造工艺制备了铅青铜轴瓦,根据理论计算及现场经验,其工艺参数:浇注温度为1000～1050℃,出型温度为400℃,铸型转速为700r/min。分析铸件组织发现,离心场下Pb颗粒球化较好,较均匀地分布在铸件内部。热处理分析发现,450℃退火容易在铸件外侧形成“锡汗”瘤,且铸件硬度随退火温度的增加有所降低。 Centrifugal casting process was used to prepare the lead bronze bearing. According to the theoretical calculation and field experience, the process parameters were as follows: the pouring temperature was 1000-1050 ℃, the outlet temperature was 400 ℃ and the casting speed was 700r / min. Analysis of castings found that Pb particles spheronization in the centrifugal field is better, more evenly distributed in the casting. The results of heat treatment showed that annealing at 450 ℃ is easy to form “Sihan” on the outside of the casting, and the hardness of the casting decreases with the increase of annealing temperature.