我公司生产的065减壳铸件,轮廓尺寸550 mm×360 mm×200 mm,毛重37 kg,材质为QT450-10。铸件要求不得有缩孔、夹砂、冷隔等铸造缺陷。铸件结构如图1。1原工艺及生产状况原工艺采用静压线湿粘土砂造型,如图2所示。内腔整体采用自硬砂芯,前端拨叉槽用油砂芯,油道芯 My company produced 065 shell castings, outline dimensions 550 mm × 360 mm × 200 mm, gross weight 37 kg, made of QT450-10. Castings require no shrinkage, sand, cold and other casting defects. Casting structure shown in Figure 1.1 The original process and production conditions The original process using static pressure clay wet sand shape, as shown in Figure 2. The overall cavity with a self-hardening sand core, the front fork groove with oil sand core, oil core