An equivalent hot spot design method for riser was designed through application of equivalent hot spot in riser design.
将当量热节概念应用于冒口设计，提出了冒口的当量热节设计法。
The equivalent hot spot method for riser design has the advantages of direct visual and simple calculation.
冒口的当量热节设计法，概念直观，计算简单。
The changes of place and size of casting hot spot with the time are based on structure of casting, material of mould and the position of gate and riser.
热节的位置、大小受铸件结构、铸型材质和浇冒口系统的开设位置所影响。
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