СПОСОБ ПРИГОТОВЛЕНИЯ ХОЛОДНОТВЕРДЕЮЩЕЙ СМЕСИ

摘要

FIELD: foundry, possibly manufacture of molds and cores by sand-blast method. ^ SUBSTANCE: method comprises steps of injecting liquid hardening agent into air-molding sand flow formed at blowing molding sand to fitting. Hardening agent is sprayed due to turbulence motion mode of air-molding sand flow and it provides intensified agitation of agent with molding sand. Combined operations allow to add highly active hardening agent to molding sand. ^ EFFECT: shortened time period of hardening of cores and molds in fittings. ^ 1 dwg