RESEARCH OF THE POSSIBILITY OF QUALITY IMPROVEMENT OF CENTRIFUGAL CASTING BILLETS MADE FROM CAST-IRON BY PROCESSING OF MELTS BY ALKALINE EARTH METALS CARBONATES
https://doi.org/10.17073/0368-0797-2016-1-43-48
Abstract
The authors have shown that the unpredictable micro heterogeneous
of cast iron melts is a reason for structural defect of the billets, manufactured by centrifugal casting. The possibility of eliminating of this reason by treatment of BSC-type materials, based on alkaline earth metal carbonates was investigated. One of the main problems is lack of clear ideas of a structure of fusions of cast-iron in thermo-time conditions of foundry production. Microinhomogeneity thus is caused by various structural components inherited from the burdening of mate rials. Besides, features of operations of refinement and modifying of fusions have impact on structure of fusion and quality of produced castings. Results of industrial experiments on influence of various ways of refinement and modifying on quality of produced castings are given. On the basis of the obtained data the optimum way of refinement and modifying of industrial cast iron was developed.
Keywords
casting,
cast iron,
melt,
structure,
modifying,
homogeneity,
refi nement,
phase structure,
thermo-time regime,
product quality
About the Authors
A. G. Panov
Naberezhnye Chelny branch of the federal “Kazan (Volga) Federal University” (68/19 Mira ave., Naberezhnye Chelny, Republic of Tatarstan, 423810, Russia)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Assist. Professor of the Chair of Materials, Technology and Quality
V. S. Tsepelev
Ural Federal University named after the fi rst President of Russia B.N. Yeltsin (19, Mira str., Ekaterinburg, 620002, Russia)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Director of the Research Center of Physics of Metallic Liquids of the Institute of Materials and Metallurgy
V. V. Konashkov
Ural Federal University named after the fi rst President of Russia B.N. Yeltsin (19, Mira str., Ekaterinburg, 620002, Russia)
Russian Federation
Cand. Sci. (Eng.), Senior Researcher
Russian Federation
Cand. Sci. (Eng.), Senior Researcher
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Review
For citations:
Panov A.G., Tsepelev V.S., Konashkov V.V. RESEARCH OF THE POSSIBILITY OF QUALITY IMPROVEMENT OF CENTRIFUGAL CASTING BILLETS MADE FROM CAST-IRON BY PROCESSING OF MELTS BY ALKALINE EARTH METALS CARBONATES. Izvestiya. Ferrous Metallurgy. 2016;59(1):43-48. (In Russ.) https://doi.org/10.17073/0368-0797-2016-1-43-48
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