首先，对“裸件”（无任何浇注或补缩系统）进行模拟。
This process involves running an initial simulation on a 'naked' casting, that is, a part without any gating or feeding system.
实际证明：采用均衡凝固理论设计球铁圈形铸件的补缩系统是可靠的。
Subsequently it is reliable for the proportional solidification theory to design feeding system of ring carrier casting of nodular iron.
本文还对该浇冒口系统提高补缩效果的原因进行了初步分析。
The cause of the effect of shrinkage improvement in this pouring system is also analysed.
对于平板类、厚大凹型类铝合金铸件，采用边侧冒口的浇注系统，能提高铸件的补缩效果，生产出合格铸件。
Feeding effect can be improved with qualified casting using side riser gating system for plate or heavy concave aluminum alloy casting.
表明采用收缩模数法计算浇注系统尺寸，用浇注系统补缩的无冒口工艺是可靠的。
The results show that the gating and feeding system without riser is reliable through calculating the sizes of gating system by moduli calculation method.
表明采用收缩模数法计算浇注系统尺寸，用浇注系统补缩的无冒口工艺是可靠的。
The results show that the gating and feeding system without riser is reliable through calculating the sizes of gating system by moduli calculation method.
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