FIELD: technological processes.
SUBSTANCE: invention relates to foundry and can be used in production of steel and cast-iron castings. Non-stick coating contains (wt%): refractory filler in form of spent aluminosilicate catalyst IM-2201 (85.0–87.0), inorganic binder in form of molding refractory clay (2.0–3.0), organic binder in form of technical lignosulphonate (4.0–5.0), technical water (balance). Use of the spent alumina-silicate catalyst IM-2201 as a refractory filler due to the presence of refractory chromium oxide and aluminum oxide improves the process properties of the coating and lowers smelting on the casts.
EFFECT: improvement of surface quality of casts.
1 cl, 3 tbl
| Title | Year | Author | Number |
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| PICKUP PREVENTING COATING FOR CASTING MOULDS AND CORES | 0 |
|
SU990398A1 |
| CASTING MOLD SAND | 0 |
|
SU1717270A1 |
