FIELD: process engineering.
SUBSTANCE: invention relates to metallurgy, particularly, to sand-clay mixed used for making lost patterns. Proposed mix comprises silica-based refractory material, refractory clay, water and process additive composed of filtration-pressing sediment of vegetable mustard oil at the following ratio of components in wt %: refractory clay - 8-10, filtration-pressing sediment of vegetable mustard oil - 1-2, water - 5.5-6, refractory material making the rest. Said filtration-pressing sediment of vegetable mustard oil may be diluted in water at the following ratio in wt %: filtration-pressing sediment - 40, water - 60.
EFFECT: better fluidity and survivability, recovery of mustard oil production wastes.
2 cl, 2 tbl
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|
SU749536A1 |
