The sort of carburization and the quality of obtained cast iron

• Autorzy: Janerka K. , Bartocha D.
• Języki publikacji: EN

Abstrakty

EN

In the production of cast iron, the pig iron's amount in charge material is more and more often limited, and replaced by steel scrap. That extorts the necessity of know-how the carburization and one is looking for carburizers, which ensure obtaining big carbon increment as quickly as possible with the high repeatability and the ones which ensure getting the adequate quality of cast iron. The object of presented research was definition of the influence of charge materials' sort on the structure, course of solidification, and the effectiveness of process. The cast iron melts, which are presented below, are made only on the basis of steel scrap with portion of graphitoidal, coke and anthracite carburizers, which were added to the charge in solid. In the article one compared the carburizers in respect of their structure, chemical constitution and the effectiveness obtained during the carburization of liquid metal. The melting of cast iron, based on the special pig iron, was carried out as well. The course of melts, chemical constitution of obtained cast iron and its structure were presented. The comparison between quality distribution and the volume fraction of graphite in classes of size for the individual melts were achieved and the TDA curves were inserted.

Słowa kluczowe

EN

foundry processes; cast iron; carburization; carburizers; effectiveness of carburization

PL

procesy odlewnicze; żeliwo; nawęglanie; nawęglacze; skuteczność nawęglania

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 4
• Strony: 55--60
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Janerka K.

autor

Bartocha D.

• Silesian University of Technology, Department of Foundry, Towarowa Str. 7, 44-100 Gliwice, Poland,

Bibliografia

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• [7] K. Janerka, D. Bartocha, J. Szajnar, M. Cholewa, The influence of different kind of carburizers and carburization on the effectiveness and iron structure, Archives of Metallurgy and Materials,52,2007,467-474.
• [8] K. Janerka, The rate and effectiveness of carburization to the sort of carburizer, Archives of Foundry Engineering, Vol. 7, No. 7 (2007) 95-100.
• [9] K. Janerka, D. Homa, S. Jura, J. Gawroński, J. Jezierski, Rates characterized the process of pneumatical carburization, Archives of Foundry, vol. 1, nr 1/2, 2001, s. 39-44 (in Polish).
• [10] K. Janerka: The factors effects on the pneumatic recarburization process parameters., Archives of Foundry, vol. 5, nr 15 (2005) 170-181.
• [11] K. Janerka, D. Bartocha, J. Gawroński, The technology of liquid iron alloys by the method of pneumatic injection, Archives of Foundry, vol. 4, No. 13,(2004) 115 - 120 (in Polish).
• [12] D. Bartocha, J. Gawroński, K. Janerka, Properties of cast iron depending on charge materials, Archives of Foundry, PAN - Katowice, nr 9, 2003 (in Polish).
• [13] D. Bartocha, K. Janerka, J. Suchoń, Charge materials and technology of melt and structure of grey cast iron, Journal of Materials Processing and Technology, 162-163 (2005) 465-470.