FIELD: foundry practice. SUBSTANCE: mixture contains, wt.-%: water-soluble compound based on lignosulphonic acids treated with sodium bicarbonate in a relation of (1-2):1, 2-0.6; cylolignin, 0.1-2.0; water, 2.4-4.6; filler - quartz sand or used mixture - the balance. EFFECT: higher strength properties, lower collapsibility, improved sanitary and ecological characteristics. 2 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING LOAMY MOLDING SAND | 0 |
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