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在精密铸造工艺设计中,一般是采用在热节圆的位置开设浇口、设置浇道或增加冒口来解决铸件缩孔、缩松等缺陷,使铸件在冷却、凝固过程中有效地形成补缩通道,获得优质的铸件,工艺设计的主要原则也来自于铸件的结构本身。运用热铁(贴)、冷铁的工艺方案,减少精铸件缩孔、缩松,通过从铸件外部冷却环境的改变来改善精铸件品质。
In precision casting process design, it is generally used to open the gate at the location of the hot festival, set the runner or increase riser to solve the defects of shrinkage, shrinkage and other defects in the casting, so that the casting effectively forms the complement during cooling and solidification Reduced access to high-quality castings, the main principle of process design also comes from the structure of the casting itself. The use of hot iron (paste), chill iron process options to reduce the casting shrinkage, shrinkage, by changing the cooling environment from outside the casting to improve casting quality.