METHOD FOR MAKING CASTING MOLDS BY PRESSING Russian patent published in 2004 - IPC

FIELD: foundry, possibly manufacture of castings in dispensable sand molds. SUBSTANCE: method comprises steps of displacing pattern upwards into technological cavity of flask; pouring molding sand into flask with sand frame; descending pattern to initial position until matching parting plane of pattern with working plane of stripping plate for realizing profiling of molding sand; then performing upwards or downwards pressing by means of flat or shaped plate. In order to move pattern, it is possible to use low-power mechanism. EFFECT: lowered energy consumption of process at uniform distribution of molding sand density along cross section of mold, reduced loads of pattern and lowered costs for making fitting. 4 dwg