FIELD: foundry, possibly manufacture of casting molds and cores of melt glass sands.
SUBSTANCE: melt glass sand contains, mass%: waste core sand, 75.0 - 80.0; quartz sand with humidity degree 3.5 - 4.0%, 17.0 -20.0; melt glass, 3.0 - 5.0; fluffed waste paper, 3.0 - 5.0; caustic soda, 1.0 - 1.5. Method comprises steps of mixing all ingredients; adding to waste core sand quartz sand with humidity degree 3.5 - 4.0%, caustic soda; agitating them and then adding fluffed waste paper together with melt glass mixed beforehand.
EFFECT: lowered shrinkage degree occurred at solidification of sand, increased cracking resistance due to relaxed stresses, improved knocking out capability, possibility of recovering waste materials.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MIXTURE FOR CASTING FORM AND ROD MAKING | 1999 |
|
RU2148464C1 |
| MIX FOR MANUFACTURING MOLDS AND RODS (VERSIONS) | 1999 |
|
RU2151018C1 |
| MIXTURE FOR MAKING MOULDS AND CORES AND METHOD FOR ITS PREPARATION | 2023 |
|
RU2813028C1 |
| MIXTURE FOR MAKING MOULDS AND CORES | 2022 |
|
RU2793659C1 |
| MIXTURE FOR MAKING MOULDS AND CORES | 2023 |
|
RU2820616C1 |
| MIXTURE FOR MAKING MOLDS AND RODS | 2019 |
|
RU2703637C1 |
| SAND COMPOSITION FOR MAKING MOULDS AND CORES | 0 |
|
SU1159715A1 |
| MIXTURE FOR MAKING MOULD CORES | 0 |
|
SU1678493A1 |
| SAND FOR MAKING MOULDS AND CORES IN CO@ PROCESS | 0 |
|
SU1261739A1 |
| USE OF SPENT COFFEE GROUNDS AS SOFTENING PROCESS ADDITIVE FOR MAKING MOULDS AND CORES FROM SAND MIXTURES ON LIQUID GLASS BINDER | 2023 |
|
RU2820856C1 |
