Аннотация. Рассмотрено влияния различных вариантов температурных параметров плавки и заливки расплава состава АК7 при литье по гази-фицируемым моделям на содержание неметаллических включений в литом состоянии. Выявлено, что минимальное содержание γ-Al 2 O 3 в готовом сплаве обеспечивают температуры перегрева расплава до 880 -890 или 940 -950 °С и заливки в литейную форму -820 -830 °С.Ключевые слова: алюминиевые сплавы, плавка, расплав, заливка, неметаллические включения.
V.B. Deev, A.V. Prokhorenko, K.V. PonomarevaSiberian State Industrial University
NONMETALLIC INCLUSIONS IN ALUMINUM ALLOY UNDER VARYING TEMPERATURE REGIME SWIMMING AND FILLINGAbstract. In this paper we study examined the impact of various options and parameters of melting temperature of the melt composition AK7 fi ll in lost foam casting for the content of nonmetallic inclusions in the cast state. It was found that the minimum content of γ-Al 2 O 3 in the fi nished alloy provide temperature melt overheating -up to 880 -890 or 950 -940 °C, the temperature in the casting mold -820 -830 °C.
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