Innovative Laboratory Procedure to Estimate Thermophysical Parameters of Iso-exo Sleeves

• Autorzy: Ignaszak Z. , Prunier J. B.

Identyfikatory

DOI

10.1515/afe-2017-0012

• Języki publikacji: EN

Abstrakty

EN

The paper is focused on properties testing of materials used in form of iso-exo sleeves for risers in ferrous alloys foundry. They are grainy-fibrous materials, containing components which initiate and upkeep exothermic reaction. Thermo-physical parameters characterizing such sleeves are necessary also to fill in reliable databases for computer simulation of processes in the casting-mould layout. Studies with use of a liquid alloy, especially regarding different sleeves bring valuable results, but are also relatively expensive and require longer test preparation time. A simplified method of study in laboratory conditions was proposed, in a furnace heated to a temperature above ignition temperature of sleeve material (initiation of exothermic reaction). This method allows to determine the basic parameters of each new sleeve supplied to foundries and assures relatively quick evaluation of sleeve quality, by comparison with previous sleeve supplies or with sleeves brought by new providers.

Słowa kluczowe

EN

ferrous alloys; sleeves; thermo-physical parameters; simulation

PL

stopy żelaza; tuleje; parametry termofizyczne; symulacje

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 1
• Strony: 67--72
• Opis fizyczny: Bibliogr. 8 poz., il., rys., tab., wykr.

Twórcy

autor

Ignaszak Z.

• Poznan University of Technology, 3 Piotrowo Street, 60-965 Poznan, Poland

autor

Prunier J. B.

• Metallurgical Group CIF Ferry-Capitain, France

Bibliografia

• [1] Ignaszak, Z. (1999). Thermo-physical parameters of insulation materials applied to feeding design of casting and in simulation of their solidification. Solidification of Metals and Alloys. 1(40), 125-131. (in Polish).
• [2] Ignaszak, Z., Popielarski, P. (2003). Thermo-physical properties of insulating-mould sleeves studied by a inverse problems method. Archives of Foundry. 3(9), 1642-5308.
• [3] Hardin, R.A. and others (2013). Riser Sleeve Properties for Steel Castings and the Effect of Sleeve Type on Casting Yield. Proceedings of the 67th SFSA Technical and Operating Conference. Paper No. 5.2, Steel Founders' Society of America, Chicago, IL.
• [4] Midea, A.C. (2007). Advanced thermo-physical data for casting process simulation - the importance of accurate sleeve properties. Foundry Research/ Giessereiforschung. 59(1), 34-43.
• [5] Tomasevic, D. and others (2006). Les controles thermiques des manchons au service de la maitrise de la qualite. Fond. Fondeurd'Aujourd. 259, novembre.
• [6] Foseco Team (2001). Caracteristiques thermiques des produits de masselottage, dossier Foseco, aout.
• [7] Williams, T.J. (2014). Thermophysical Properties for ASK Chemical and Exochem Riser Sleeves for Steel Castings. Proceedings of the 68th SFSA Technical and Operating Conference, paper no 4.6, SteelFounder's Society of America, Chicago, IL.
• [8] Lipowska, B., Witek, J., Stec, K. (2015). Aluminium dross-based insulating and mould materials for metallurgical industry. Archives of Foundry Engineering. 10(4), 115-118.

Uwagi

PL

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