FEATURES OF SPHEROIDIZING MODIFICATION OF HIGH-STRENGTH CAST IRON WITH MASTER ALLOYS BASED ON COPPER
Abstract
The increase of efficiency of modification process for ductile iron is topically, thereby increasing its mechanical and operational properties. For these purposes, in practice, various magnesium containing alloys are used, including «heavy» ones on the basis of Copper and Nickel. The analysis has shown that the application of bulk inoculating alloys based on copper basis were not effectively due to long dissolution period. From this point of view, the interest is high-speed casting, allowing the production of inoculating alloys in the form of strips – chips that are characterized by a low dissolution time and low piroeffekt. The aim of this work is to study the features of structure formation in nodular cast iron using different spheroidizing alloys based on copper. Studies have shown that the transition from the use of briquetted form alloys based on copper and magnesium to the «chips-inoculating alloys» allowed increasing the efficiency of the spheroidizing process. Further improvement in the quality of ductile iron can be achieved by the use in «chip-inoculating alloys» additives of nanosized yttrium oxide powder.
About the Authors
A. S. Kalinichenko
Belarusian National Technical University
Belarus
Belarus
A. G. Slutsky
Belarusian National Technical University
Belarus
Belarus
V. A. Sheinert
Belarusian National Technical University
Belarus
Belarus
R. E. Trubitsky
Lidsky foudry-mechanical plant, Lida city, Grodno Region
Belarus
Belarus
V. A. Stefanovich
Belarusian National Technical University
Belarus
Belarus
V. A. Smyеtkin
Belarusian National Technical University
Belarus
Belarus
References
1. Rosseljong D. Cast Iron vs. Ductile Iron Housing Material // EDOC1–12–004. http://www.sumitomodrive.com/uploads/product/ files/file-1283.pdf.
2. Demirel C., Behr T., Weisskopf K., Böschen R., Gündisch C. The application of high-strength cast irons (ADI – austempered ductile iron) in high-performance diesel engines – part 2. Foundry Trade Journal. November 2006, pp. 286–288.
3. The process of high strength grey cast iron. http://www.slideshare.net/allenjo/the-process-of-high-strength-grey-cast-iron.
4. Lekakh S. N., Bestuzhev N. I. Vnechnaya obrabotka vysokokachestvennyh chugunov v machinostroenii [Ladle refining of highgrade cast iron in machinery]. Minsk, Nauka i technika Publ., 1992. 269 p.
5. Kalinichenko A. S., Sheinert V. A., Lekakh S. N., Khudokormov D. N. «Chips-protses» modifitsirovaniya chuguna [«Chipsprocess» for modification of cast iron]. Liteynoe proizvodstvo = Foundry production, 1991, no. 2, pp. 5–6.
6. Sverdlin A., Lekakh S., Kalinichenko A., Sheinert V. «Chips»-Process for Cast Iron Inoculation. Foundry Management & Technology. 1994, May. рр. 31–34.
7. Kalinichenko A. S., Slutsky A. G., Sheinert V. A., Lenkevich S. A., Bely A. N. Ispol’zovanie sferoidiziruguschey «Chips»ligatury na osnove medi, soderzhaschey nanorazmernye chastitsy oksida ittriya, dlya vysokoprochnogo chuguna [Application of spheroidizing «Chips»-master alloy on copper base containing nanoscale particles of Yttrium oxide for high-strength cast iron]. Lit’e i metallurgiya = Foundry production and metallurgy, 2016, no. 1, pp. 130–135.
Review
For citations:
Kalinichenko A.S., Slutsky A.G., Sheinert V.A., Trubitsky R.E., Stefanovich V.A., Smyеtkin V.A. FEATURES OF SPHEROIDIZING MODIFICATION OF HIGH-STRENGTH CAST IRON WITH MASTER ALLOYS BASED ON COPPER. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2016;(2):110-115. (In Russ.)
Views:
843
Email this article 