Examination of Electrical Resistance of Carburizers Used for Cast Iron Production

• Autorzy: Książek D. , Koza M. , Bieroński M. , Krasa O. , Kuś R.
• Języki publikacji: EN

Abstrakty

EN

The publication presents the results of examination of selected carburizers used for cast iron production with respect to their electric resistance. Both the synthetic graphite carburizers and petroleum coke (petcoke) carburizers of various chemical composition were compared. The relationships between electrical resistance of tested carburizers and their quality were found. The graphite carburizers exhibited much better conductivity than the petcoke ones. Resistance characteristics were different for the different types of carburizers. The measurements were performed according to the authors’ own method based on recording the electric current flow through the compressed samples. The samples of the specified diameter were put under pressure of the gradually increased value (10, 20, 50, 60, and finally 70 bar), each time the corresponding value of electric resistance being measured with a gauge of high accuracy, equal to 0.1μΩ. The higher pressure values resulted in the lower values of resistance. The relation between both the thermal conductance and the electrical conductance (or the resistance) is well known and mentioned in the professional literature. The results were analysed and presented both in tabular and, additionally, in graphic form.

Słowa kluczowe

EN

cast iron; foundry material; carburizer; electrical resistance

PL

żeliwo; materiał odlewniczy; nawęglacz; opór elektryczny

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 4
• Strony: 65--68
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Książek D.

• Department of Foundry, Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland

autor

Koza M.

• Department of Foundry, Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland

autor

Bieroński M.

• Department of Foundry, Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland

autor

Krasa O.

• Department of Foundry, Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland

autor

Kuś R.

• Department of Foundry, Częstochowa University of Technology, ul. Dąbrowskiego 69, 42-201 Częstochowa, Poland

Bibliografia

• [1] (2006). Sorelmetal. On the nodular cast iron. Promotional literature. (in Polish). Warsaw: Ed. Metals & Minerals Ltd.
• [2] Janerka, K., Jezierski, J. & Pawlyta, M. (2010). The properties and structure of the carburizers. Archives of Foundry Engineering. 10(1), 67-74.
• [3] Janerka, K. (2010). Recarburization of liquid ferrous alloys. (in Polish). Gliwice: Ed. of the Silesian University of Technology.
• [4] Janerka, K. (2007). The rate and effectiveness of carburization to the sort of carburizer. Archives of Foundry Engineering. 7(4), 95-100.
• [5] Janerka, K., Jezierski, J. & Szajnar, J. (2012). Quality and properties of the cast iron produced on the steel scrap base. Archives of Materials Science and Engineering. 53(2), 92-101.
• [6] Janerka, K., Bartocha, D. & Szajnar, J. (2009). Quality of carburizers and its influence on carburization process, Archives of Foundry Engineering. 9(2), 249-254.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.