| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to metallurgy. Proposed method comprises using the used moulding sand glued by liquid glass-based binder, adding dispersed metal oxide thereto and heat treatment of used moulding glass. Here, used moulding sand is heated to at least 200°C to obtain recovered moulding sand. Dispersed metal oxide is selected from the set including silicon dioxide, aluminium oxide, titanium oxide, zinc oxide mixed thereof.EFFECT: recovery with mechanical processing to add to mould toughness made of recovered sand.21 cl, 7 tbl, 5 ex |
