The Effect of Cooling Agent on Stress and Deformation of Charge-loaded Cast Pallets

• Autorzy: Bajwoluk A. , Gutowski P.

Identyfikatory

DOI

10.1515/afe-2017-0123

• Języki publikacji: EN

Abstrakty

EN

The results of research on the effect of the type of cooling agent used during heat treatment and thermal-chemical treatment on the formation of temperature gradient and stress-deformation distribution in cast pallets, which are part of furnace accessories used in this treatment, are disclosed. During operation, pallets are exposed to the effect of the same conditions as the charge they are carrying. Cyclic thermal loads are the main cause of excessive deformations or cracks, which after some time of the cast pallet operation result in its withdrawal due to damage. One of the major causes of this damage are stresses formed under the effect of temperature gradient in the unevenly cooled pallet construction. Studies focused on the analysis of heat flow in a charge-loaded pallet, cooled by various cooling agents characterized by different heat transfer coefficients and temperature. Based on the obtained temperature distribution, the stress distribution and the resulting deformation were examined. The results enabled drawing relevant conclusions about the effect of cooling conditions on stresses formed in the direction of the largest temperature gradient.

Słowa kluczowe

EN

information technology; foundry industry; cast grate; thermal stresses; heat treatment equipment

PL

technologia informacyjna; przemysł odlewniczy; paleta odlewnicza; naprężenia cieplne; obróbka cieplna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 4
• Strony: 13--18
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Bajwoluk A.

• Mechanical Engineering Faculty, West Pomeranian University of Technology, Szczecin, al. Piastów 19, 70-310 Szczecin, Polska

autor

Gutowski P.

• Mechanical Engineering Faculty, West Pomeranian University of Technology, Szczecin, al. Piastów 19, 70-310 Szczecin, Polska

Bibliografia

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• [3] Dossett, J.L., Boyer, H.E. (2006). Practical Heat Treating. ASM International, 2nd ed.
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• [9] Gutowski, P. (1989). Research the causes of cracking in pallets operating in furnaces for the carburising treatment. Unpublished doctoral dissertation, Technical University of Szczecin, Szczecin. (in Polish).
• [10] Bajwoluk, A. & Gutowski, P. (2015). The effect of pallet component geometry on temperature gradient during cooling. Archive of Foundry Engineering. 15(1), 5-8. DOI: 10.1515/afe-2015-0001.
• [11] Bajwoluk, A. & Gutowski, P. (2014). Analysis of thermal stresses in components of pallets operating in furnaces for the carburising treatment. Archive of Foundry Engineering. 14(spec.1), 175-180.
• [12] Luty, W. (1986). Quenching cooling agents. Warszawa: Science-Technical Publishers. (in Polish).
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• [15] Standard EN 10295:2002. Heat resistant steel castings.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).