介绍了八轴电力机车铝合金齿轮箱箱体的低压铸造工艺。采用树脂砂砂型、覆膜砂砂芯,上、下两个箱体均采用平做平浇的工艺方案,并选取箱体中线为分型面。试生产的齿轮箱箱体,其力学性能、内部品质及外观品质均符合设计要求,满足八轴机车齿轮箱的使用要求。 The low-pressure casting process of aluminum alloy gearbox box for eight-axle electric locomotive is introduced. Using resin sand sand, sand sand coated core, the upper and lower two boxes are used flat to do the pouring process, and select the midline of the box as the parting surface. Trial production of the gear box box, its mechanical properties, internal quality and appearance quality are in line with design requirements to meet the eight-axis locomotive gear box requirements.