Process for preparing improved binding material systems, its use for coal-dust-free refining, for moulding of bentonite bindings and for mould-core-formation
AssigneeHungaroben Kft.
InventorsGyula Szepfoldi, Istvan Halasz, Kalman Kovaliczky, Karoly Gedey
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Abstract
The invention describes a bonding material for casting mold, which comprises from about 0.5 to about 20 mass % plant-derived lecithin, plant oil or a mixture of lecithin and plant oil, from about 0.1 to about 5.5 mass % starch, starch derivative, sodium carboxymethylcellulose or a mixture thereof, from about 0.3 to about 4.5 mass % of sodium carbonate, 0.05 to 1.25 mass % of a boron compound, and the balance to 100 % being bentonite.
Claims6
Bonding material for casting mold, which comprises from about 0.5 to about 20 mass % a first material selected from the group consisting of plant-derived lecithin, plant oil or a mixture thereof from about 0.1 to about 5.5 mass % a second material selected from the group consisting of starch, starch derivative, sodium carboxymethylcellulose or mixtures thereof from about 0.3 to about 4.5 mass % of sodium carbonate;
- from about 0.05 to about 1.25 mass % of a boron compound, and the balance to 100% of the bonding material being bentonite.
Dependencies are inferred from the claim text.