FIELD: foundry practice. SUBSTANCE: compound contains, percent by weight, 2.5-3.5 of molding loam, 3.0-4.0 of alumochromphosphate binder, 0.4-0.6 of water, 0.5-1.5 of fly ash, the balance being refractory filler. EFFECT: reduced sticking of compound to equipment due to using fly ash from heat and electric power plants; improved durability of the compound, better operating conditions; reduced gas escape, better strength in dried condition and higher gas permeability, lower falling down. 2 tbl
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