在用粘土砂生产较大的圆筒类铸件时,传统的铸造方法是采用平做竖浇(水平造型、竖直浇注)的工艺,铁水由雨淋浇口从上向下导入型腔。平做竖浇工艺虽有一定的优点,但也有其固有的缺点: ①平做竖浇配箱操作难度大。 ②浇注初期铁水落差大,造成铁水对型、芯的冲击大,进而产生铸件表面缺陷。 ③常在铸件浇注位置的顶部设大冒口,造成铸件 In the clay production of larger cylinder casting, the traditional casting method is to use the vertical dovetail (horizontal shape, vertical casting) process, the molten iron from the rain gate from top to bottom into the cavity. Although there are certain advantages of vertical pouring process, but also has its inherent drawbacks: ① horizontal do with vertical pouring box operation difficult. ② pouring molten iron drop in the early large, resulting in hot metal on the type, the impact of the core, resulting in casting surface defects. ③ often casting pouring location at the top of a large riser, resulting in castings