FIELD: foundry, manufacture of moulds. SUBSTANCE: moulding sand is loaded into casting box with the aid of stream of compressed air. At second stage moulding sand is compacted by means of shock wave created by gaseous atmosphere maintaining increase of pressure gradient in the course of specified time till certain pressure is achieved. Then moulding sand is additionally compacted mechanically. EFFECT: manufacture of moulds with homogeneous compaction of moulding sand meeting all hardness requirements with reduced time of manufacturing cycle. 9 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND APPARATUS FOR COMPACTING GRANULAR MATERIALS | 0 |
|
SU980605A3 |
| METHOD OF FABRICATING MOULDS | 0 |
|
SU1722216A3 |
| CASTING MOLD MANUFACTURING METHOD | 0 |
|
SU1804370A3 |
| METHOD AND APPARATUS FOR COMPACTING MOLDING MATERIAL | 0 |
|
SU1019994A3 |
| MULTIPOSITIONAL MOULDING MACHINE FOR MAKING CASTING MOULDS | 0 |
|
SU741784A3 |
| MACHINE FOR COMPACTING GRANULAR MOULDING MATERIALS BY PULSED PRESSURE OF GAS | 0 |
|
SU1674690A3 |
| USED SAND MIXTURE AND/OR CORE MIXTURE PROCESSING METHOD | 1991 |
|
RU2030949C1 |
| METHOD AND APPARATUS FOR REGENERATING SAND-CLAY FOUNDARY SANDS | 0 |
|
SU1055322A3 |
| CASTINGS MARKING METHOD | 1993 |
|
RU2087246C1 |
| ARRANGEMENT FOR CONSOLIDATING GRANULAR MIXTURES | 0 |
|
SU1572741A1 |
