Influence of over-cooling the nodular cast iron to the graphite form in the surface layer

• Autorzy: Hosadyna M. , Dobosz S. M. , Kusiński J.
• Języki publikacji: EN

Abstrakty

EN

A cast iron is gradient material. This means that depending on the cooling rate it is possible, at the same chemical composition and the physicochemical state of molten metal, to obtain material with a different structure. The connection between the wall thickness of the casting and the speed of its cooling expresses the casting module. Along with the module escalation a cooling rate of the casting is reducing what can cause changes of the microstructure and the increased tendency to the crystallization of distorted graphite forms. Inspections of experimental castings from nodular cast iron with different modules were conducted to the graphite form.

Słowa kluczowe

EN

nodular cast iron; casting module; graphite form

PL

żeliwo sferoidalne; moduł odlewniczy; postać grafitu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 1
• Strony: 43--46
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Hosadyna M.

autor

Dobosz S. M.

autor

Kusiński J.

• AGH University of Science and Technology, Faculty of Foundry Engineering, al. Mickiewicza 30, 30-059 Kraków, Poland,

Bibliografia

• [1] Hosadyna, M., Dobosz, St. M. & Jelinek, P. (2009). The diffusion of sulphur from moulding sand to cast and methods of its elimination. Archives of Foundry Engineering. 9 (4), 73-76.
• [2] Dobosz, St. M. & Hosadyna, M. (2010). The new hardeners for self-hardened moulding sands having lower sulphur emission. In HA: Moulding and core materials - the theory and the practice, Kazimierz Dolny, 1-20. (In Polish).
• [3] Hosadyna, M., Dobosz, St. M. & Kusiński, J. (2011). Quality of the reclamation sand and the casting surface structure. Archives of Foundry Engineering. 11 (1), 39-42.
• [4] Hosadyna, M., Dobosz, St. M. & Major-Gabryś, K. (2011). Influence of the hardener type on the sulphur diffusion from moulding sand to the casting surface. Archives of Foundry Engineering. 11 (Special Issue 2), 87-92.
• [5] Podrzucki, Cz. (1991). The cast iron. Kraków: ZG STOP (In Polish).
• [6] Głownia, K., Gwizdz, A. & Kozakowski, S. (2002). Study of the regulation of the oxygen and sulphur content in the cast iron after spheroidizing. Research work of the Foundry Reasearch Institute. 1-17 (In Polish).
• [7] Guzik, E. (2001). Processes of improving the cast iron - chosen issues. Katowice: Archives of Foundry Engineering PAN, Monograph No. 1M.