FIELD: casting.
SUBSTANCE: nozzle of pressure casting machine through which metal is injected into mould is provided with projecting part. Projecting part of nozzle gets into sprue bushing, and sealing is formed between projecting part and bushing. Nozzle and sprue bushing are made for axial displacement relative to each other. In process of casting, limited amount of metal penetrating in clearance between nozzle and sprue bushing forms sealing.
EFFECT: prevention of leaks of material through joint between nozzle and sprue bushing.
19 cl, 5 dwg
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