FIELD: metallurgy.
SUBSTANCE: method includes heating of metal equipment to 150-350°C, filling it with liquid glass mixture, holding the mixture, holding the mixture in contact with the equipment heated surface, hardening the rod by blowing through with carbon dioxide or cold air flow or heated air with 10-80% carbon dioxide added. Throughout the process of rod manufacturing, the rod equipment is vacuum treated.
EFFECT: reducing the rod surface friability and increasing its strength.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MANUFACTURING CASTING MOLDS AND CORES | 1996 |
|
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| METHOD FOR MANUFACTURE OF FOUNDRY CORES OR MOLDS FROM WATER GLASS MIXTURES | 1994 |
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| METHOD OF STRENGTHENING MOULDS AND CORES OF LIQUID GLASS MIXTURES | 0 |
|
SU1041202A1 |
| SAND FOR MAKING MOULDS AND CORES | 0 |
|
SU1547936A1 |
| METHOD OF COMBINED MOULDS FROM LIQUID-GLASS SELF-HARDENING MIXES | 2010 |
|
RU2486987C2 |
