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Continuous casting and foundry production
ArticleName Application of fabrication technology for metal phosphate binders, core sands and moulding mixtures on their base
ArticleAuthor I. E. Illarionov

Chuvash State University (Cheboksary, Russia):

I. E. Illarionov, Dr. Eng., Prof, Head of the Chair “Metal science and metallurgical processes”, e-mail:


At present time in many foundries in Russia, synthetic resins and various their hardeners, which are characterized by endogenicity, toxicity and high gas content, are used as binders that are hardenable during heat treatment, and as cold fi ttings to make cores and moulds. Liquid glass and phosphate binders are widely used as inorganic binders. However, liquid glass has a low thermal resistance and provides a difficult knockout of cores and moulds. The authors have conducted the research on development of metal phosphate binders and mixtures for cores and moulds production on their basis during fabrication of cast iron and steel castings. The phosphate systems P2O5 – Al2O3 – H2O; P2O5 – MgO – H2O; P2O5 – Al2O3 – MgO – H2O and AKhFS aluminochromophosphate binder (according to TU 6-18-166-83, produced by the Aktyubinsk plant of chrome compounds) were used as binders. Synthesis of binders to obtain col-hardened mixtures was carried out via neutralization of orthophosphoric acid by magnesium oxide, aluminum hydrate and other oxides. The paper also presents the results of studies of dependence between density, surface tension, wetting contact angle and binding capacity of metal-phosphate binding ability and their chemical composition. Technological processes were developed for the production of cast iron and steel castings on the basis of the conducted researches, which were tested in production conditions.

keywords Core and moulding cold-hardening mixtures, aluminophosphate, magnesium phosphate, magnesium aluminophosphate, alumochromophosphate binders, strength, heat resistance, ductility, environmental friendliness, quality of castings

1. Illarionov I. E., Bryalin M. F. Theoretical and technological basis of development of core sands based on inorganic phosphate binders and powder-like hardeners. Vestnik Magnitogorskogo tekhnicheskogo universiteta. 2006. No. 4. pp. 24–33.
2. Illarionov I. E. Scientific basis of design rod and moulding mixtures based on inorganic phosphate bonds and powdered hardener. Liteyshchik Rossii. 2016. No. 1. pp. 16–27.
3. Illarionov I. E., Strelnikov I. A., Korolev A. V. About the features of use of metal-phosphate mixture. Liteynoe proizvodstvo. 2016. No. 6. pp. 5–7.
4. Illarionov I. E., Strelnikov I. A. Use of heat-insulting metal-phosphate mixtures. Liteynoe proizvodstvo. 2015. No. 7. pp. 14–16.
5. Evlampiev A. A., Chernyshev E. A., Korolev A. V., Guseva O. B., Mikhaylov S. V. Influence of destruction products of separation coating and core sand on formation of gas defects in steel castings. Zagotovitelnoe proizvodstvo v mashinostroenii. 2013. No. 6. pp. 2–6.
6. Evlampiev A. A., Chernyshev E. A., Korolev A. V., Guseva O. B. Following the question of gas defects formation in steel casting during the application of cores, made applying Cold-box-aminprocess technology. Liteyshchik Rossii. 2013. No. 2. pp. 37–40.
7. Busbi A. D. Break avoidance during the ferrous cast making using phenol-urethane Cold-box-bars. Liteyshchik Rossii. 2009. No. 5. pp. 41–45.
8. Chernyshev E. A., Evlampiev A. A. Trends of development, technological features and prospects of use the sand-phosphate mixtures. Liteyshchik Rossii. 2009. No. 11. pp. 35–37.
9. Evlampiev A. A., Chernyshev E. A., Shvedov M. A., Korolev A. V. About the manufacturability of solebar cast design. Liteynoe proizvodstvo. 2013. No. 9. pp. 16–19.
10. Vacelet P. N., Muniza J., Milekhin V. New Cold Box binding system without solvents, which decreases the emission during the castings production process. Liteyshchik Rossii. 2013. No. 7. pp. 18–20.
11. Lyutyy R. V., Guriya I. M., Shapovalova D. V., Keush D. V. Formation of binding compositions based on orthophosphoric acid and metal salts in moulding sands. Liteynoe proizvodstvo. 2013. No. 5. pp. 16–19.
12. Evlampiev A. A., Chernyshev E. A., Grigorev L. P. Experience of mastering of Alfa-set–process. Liteynoe proizvodstvo. 2011. No. 5. pp. 17–18.
13. Evstigneev A. I., Petrov V. V., Dmitriev E. A., Tarasova A. A., Masasi Y. Sand Families with Salt Binders. Liteynoe proizvodstvo. 2011. No. 5. pp. 11–13.
14. Lyutyy R. V., Keush D. V., Guriya I. M. Hardening of core sands with orthophosphoric acid and metal salts. Liteynoe proizvodstvo. 2015. No. 7. pp. 27–29.
15. Chernyshev E. A., Evlampiev A. A., Korolev A. V., Kuznetsov S. A., Ivanova L. A. About modernization of steel plants using modern shaping technologies. Liteynoe proizvodstvo. 2015. No. 3. pp. 36–38.
16. Illarionov I. E., Strelnikov I. A., Zhuravlev A. F. Features of special mixtures for necked-down risers application. Zagotovitelnoe proizvodstvo v mashinostroenii. 2011. No. 9. pp. 8–9.
17. Reinhard Stötzel, Ismail Yilmaz, Shengyin Liu, Fumihiko Kimura. Use of refractory facings and additives for cast making without any defects or clogs. Liteynoe proizvodstvo. 2017. No. 8. pp. 17–22.
18. Müller J., Koch D., Frohn M., Weicker G., Körschgen J., Schreckengberg С. Inotec proves practically its efficiency. Liteynoe proizvodstvo. 2008. No. 7. pp. 21–23
19. Flemming E., Ivanov M., Tilch W. Possbilities of the use of ultrasonic measuring techniques for checking and control of chemically hardening sands. 61st World Foundry Congress. 24–29 September, 1995. Beijing, China. pp. 155–156.
20. Doroschenko S. P., Makarevisch A. P. Formsande und kernsande mit dem wasserglas: anwendungen, problemen und perspektiven. 61st World Foundry Congress. 24–29 September, 1995. Beijing, China. pp. 275–286.
21. Dopp R., Alekassir A., Brummer G., Xiao Bo. Reclamation of waterglass bonded sand. 61st World Foundry Congress. 24–29 September, 1995. Beijing, China. pp. 287–300.
22. Zhukovskiy S. S., Lyass A. M. Moulds and bars made of cold-solidifying mixtures. Moscow : Mashinostroenie, 1978. 224 p.
23. Strelkov K. K., Mamykin P. S. Technology of refractory. Moscow : Metallurgiya, 1978. 376 p.
24. Gerasimov S. P., Titov A. Yu., Palachev V. A., Konovalov A. N. Technology of art casting obtaining using cold-setting mixture moulds with facing ceramic layer. Tsvetnye Metally. 2015. No. 10. pp. 8–12.

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