Efficiency of additives of the polysaccharide type on physical properties of bentonite mixtures

• Autorzy: Beňo, J. , Jelínek, P. , Špirutová, N. , Mikšovský, F.
• Języki publikacji: EN

Abstrakty

EN

The addition of polysaccharide additives generally aims at improving some important physical properties of bentonite mixtures, above all the stability of moulds against the water loss and prevention of surface defects of castings. Polysaccharide products of inland and foreign production were checked in mixtures of two bentonites of the Czech provenance with the same montmorillonite content. The attention was paid in particular to the abrasion resistance of mixtures during storing them under constant climatic conditions. Conclusions have shown the substantial influence of: the amount of the added additive, the kind and structural composition of the additive (pH of the water extract, electric conductance).

Słowa kluczowe

PL

rozwój produktu; piasek odlewniczy; dekstryna

EN

product development; green sand system; dextrin; additives

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 1
• Strony: 5-8
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.,

Twórcy

autor

Beňo, J.

autor

Jelínek, P.

autor

Špirutová, N.

autor

Mikšovský, F.

• Department of Foundry, Technical University Ostrava, Tr. 17. listopadu, 708 33 Ostrava - Poruba, Czech Republic,

Bibliografia

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