The carburization process rates in synthetic cast iron production

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

Abstrakty

EN

Purpose: The aim of presented researches was determination of possibility of synthetic cast iron production on base of steel and process scrap as well as determination of carburization effectiveness, realized with three methods: addition of carburizer to charge in solid, addition of carburizer on surface of liquid metal, pneumatic injection of carburizer in stream of carrying gas to liquid metal. Design/methodology/approach: Each of these methods have a undoubted advantages but also have a numer of disadvantages. In foundry engineering practice the most essential parameters of this process are to obtain as high as possible degree of carbon assimilation from carburizer, in as short as possible time, with high proces repeatability. Findings: Decrease of share or elimination of the pig iron from charge materials causes significant reduction of cast iron melt costs. Working out the effective and repeatable crburization method is a very important issue. Research limitations/implications: The result of carburization in arc electric furnaces experiments carried out by the authors of this paper made possibility on application method of pneumatic carburization in a dozen of domestic foundries. Presented below researches concern inductive furnaces, which are a wide group of melting furnaces applied in foundry engineering. Basis on these researches affirmed that the most effectiveness carburization method is the pneumatic injection of carburizer in stream of carrying gas. Practical implications: This method required significant financial outlay on devices purchase. Considerably cheaper method, but less repeatable is a addition of carburizer to solid charge. Originality/value: Realized experiments are a part of statutory researches and have not only utilitarian value (worked out effective method for carburization in industrial conditions), but also experience (rate change of carbon content increase in function of time for changeable parameters of liquid metal.

Słowa kluczowe

EN

casting; powder injection; carburizing

PL

odlewanie; wtryskiwanie proszku; nawęglanie

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 379--382
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Janerka K.

• Division of Foundry, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Bartocha D.

• Division of Foundry, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

autor

Szajnar J.

• Division of Foundry, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland

Bibliografia

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• [2] Z. Piątkiewicz, H. Szlumczyk. K. Janerka, Pneumatic conveying in industrial applications, Proceedings of the I-st International Scientific Conference AMME, Gliwice 1992, p. 167.
• [3] Janerka K.: The factors effects on the pneumatic recarburization process parameters, Archives of Foundry, PAN Katowice, vol. 5, nr 15, 2005 (in Polish).
• [4] K. Janerka, S. Jura, Z. Piątkiewicz, H. Szlumczyk, Diphase stream parameters influence on carburization rate, Proceedings of the III-rd International Scientific Conference AMME, Gliwice 1994, p. 155 (in Polish).
• [5] K. Janerka, J. Jezierski, Z. Piątkiewicz, H. Szlumczyk, Rate of the process in pneumatic liquid metal carburizing, Proceedings of the MME, Gliwice 2000.
• [6] K. Janerka, Parameters in pneumatic recarburization process, Proc. of the Third Scient. Conf. M3E’2005, Gliwice-Wisła, 2005, p.531 (in Polish).
• [7] K. Janerka, Mechanizm of mass exchange in pneumatic recarburization of liquid ferrous metals, Proceedings of the 12-th International Scientific Conference AMME, Gliwice-Zakopane 2003, p.415 (in Polish).
• [8] K. Janerka, Z. Piątkiewicz, H. Szlumczyk, Review of injection carburizing plants for liquid metal treatment in arc furnaces, Proceedings of the II-nd International Scientific Conference AMME, Gliwice 1993, p. 126.
• [9] K. Janerka, D. Bartocha: Pneumati carburization in synthetic cast iron production, Mat Miedz. Konf. Wspóápraca 2004, Tatranska Lomnica, 2004 (in Polish).
• [10] Kanafek M, Homa D, Janerka K.: Cast iron carburization in TEKSID Poland S. A. Foundry with POLKO pneumatic devices, Przegląd Odlewnictwa, 1999, nr 7 (in Polish).
• [11] K. Janerka, S. Jura, H. Szlumczyk, J. Jezierski, D. Homa, Devices for liquid bath recarburization in EAF’s, Solidification of Metals and Alloys, PAN Katowice, v.1, nr 39, 1999, s. 113-120 (in Polish).