FIELD: process engineering.
SUBSTANCE: invention relates to foundry. Proposed mould comprises lost head representing a cavity with metal melt, discharge gates and exothermal elements. The latter represent vertical cylinders with inside cavity, its geometrical axis aligned with cylinder axis, and are arranged along lost head edges. Total weight of all exothermal elements in one lost head and lost head metal are related as follows: Σme=(0.0625…0.125)MM, where Σme is the weight of all exothermal elements, kg; MM is the weight of metal in lost head, kg.
EFFECT: higher quality.
2 cl, 3 dwg
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