Carburization process rate in production of synthetic cast iron

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

Abstrakty

EN

Purpose: The main goal of the paper was to determine the possibility of synthetic cast iron production on base of steel and process scraps as well as the carburization effectiveness, realized with three methods - fully described in main text. Design/methodology/approach: Each of described methods has undoubted advantages but also has a number 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 process repeatability. Findings: Decrease of share or elimination the whole amount of the pig iron from charge materials causes reduction cost of gray or ductile cast irons melt. Now the very important issue is working out the effective and, repeatable in industrial conditions, carburization method. Research limitations/implications: Obtained results of experiment on carburization in electric arc furnaces allow to apply pneumatic carburization method in a dozen of domestic foundries. Described in main text researches concern inductive furnaces, which are the wideness group of melting furnaces applied in foundry engineering. Basis on results of these research authors have affirmed that the method characterized with the most carburization effectiveness is the pneumatic injection of carburizer in stream of carrying gas. Practical implications: Industrial application of pneumatic carburization method unfortunately required significant financial outlay on devices purchase. Considerably cheaper method, but characterized with less repeatability is an addition of carburizer to solid charge. Originality/value: Realized experiment is a part of statutory researches, which are carried out in Foundry Department of Institute of Engineering Materials and Biomaterials and supply us with not only utilitarian value - worked out effective method for carburization in industrial conditions, but also experience value - 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: Archives of Materials Science and Engineering
• Rocznik: 2009
• Tom: Vol. 36, nr 1
• Strony: 55--61
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Janerka K.

autor

Bartocha D.

autor

Szajnar J.

• Division of Foundry, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Towarowa 7, 44-100 Gliwice, Poland,

Bibliografia

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