FIELD: casting with use of investment patterns complex-profile thin-relief castings of ferrous alloys. SUBSTANCE: method for chemically fixing layers of liquid-glass coating applied onto investment pattern comprises steps of using solution containing aluminum-boron phosphate concentrate in quantity 25 - 40 mass% and water; after applying liquid-glass coating, immersing into solution investment pattern block; simultaneously acting upon solution by nanosecond electromagnetic pulses with specific power 1200-1500 MWt/cub.m; cyclically repeating process for receiving laminate ceramic mold. Treatment of liquid-glass coating in solution of aluminum-boron phosphate concentrate acted by nanosecond electromagnetic pulses causes accelerated gel formation of binder and uniform complete impregnation of binder with fixing agent. EFFECT: enhanced physico-mechanical properties of ceramic mold. 2 cl, 3 tbl, 2 ex
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