FIELD: casting production. SUBSTANCE: sand includes a total content of liquid components (1.5-2.2) mass with next ratio of ingredients melt glass (0.9-1.4)% non-hydrolyzed ethyl silicate (0.2-0.5)% amine (0.1-0.25)% NaOH γ - (0.3-1.0)% refractory filler the balance. Molds and cores of such sand allow to lower significantly an allowance for working blanks, to decrease waviness of their surface and to prevent formation of hot tracking. EFFECT: enhanced quality of molds and cores. 1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| SELF-HARDENING MIXTURE FOR MANUFACTURING OF CASTING MOLDS AND RODS | 1992 |
|
RU2038182C1 |
| SAND FOR MAKING MOULDS AND CORES | 0 |
|
SU1532181A1 |
| SELF-HARDENING MIXTURE | 1991 |
|
RU2008997C1 |
| COMPOSITION FOR OBTAINING ANTISKID COATING FOR MOULDS AND CORES | 0 |
|
SU1308421A1 |
| MIX FOR MAKING FOUNDRY MOLDS AND CORES | 0 |
|
SU999338A1 |
| MIXTURE FOR CASTING MOLDS AND CORES | 0 |
|
SU1764759A1 |
| MIX FOR CASTING MOULDS AND CORES | 2009 |
|
RU2404878C1 |
| ANTIPENETRATION AND LOW-CONDUCTIVITY COATING FOR MOULDS OF CENTRIFUGAL CASTING | 2011 |
|
RU2453391C1 |
| COMPOSITION FOR MAKING FOUNDRY MOULDS AND CORES | 0 |
|
SU1482747A1 |
| SELF-HARDENING SAND FOR MAKING CASTING MOULDS AND CORES | 0 |
|
SU1102652A1 |
