Cast Steel Filtration Trials Using Ceramic-Carbon Filters

• Autorzy: Lipowska B. , Witek J. , Wala T. , Karwiński A. , Wieliczko P. , Asłanowicz M. , Ościłowski A.

Identyfikatory

DOI

10.2478/afe-2014-0087

• Języki publikacji: EN

Abstrakty

EN

Trials of cast steel filtration using two types of newly-developed foam filters in which carbon was the phase binding ceramic particles have been conducted. In one of the filters the source of carbon was flake graphite and coal-tar pitch, while in the other one graphite was replaced by a cheaper carbon precursor. The newly-developed filters are fired at 1000C, i.e. at a much lower temperature than the currently applied ZrO2-based filters. During filtration trials the filters were subjected to the attack of a flowing metal stream having a temperature of 1650C for 30 seconds. Characteristic of the filters’ properties before and after the filtration trial were done. It was found, that the surface reaction of the filter walls with molten metal, which resulted in local changes of the microstructure and phase composition, did not affect on expected filter lifetime and filtration did not cause secondary contamination of cast steel.

Słowa kluczowe

EN

molten metals’ filtration; foam filter; microstructure

PL

filtracja ciekłych metali; filtr piankowy; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 4
• Strony: 61--66
• Opis fizyczny: Bibliogr. 6 poz., fot., rys., tab.

Twórcy

autor

Lipowska B.

• Institute of Ceramics and Building Materials, Refractory Materials Division, ul. Toszecka 99, 44-100 Gliwice, Polska

autor

Witek J.

• Institute of Ceramics and Building Materials, Refractory Materials Division, ul. Toszecka 99, 44-100 Gliwice, Polska

autor

Wala T.

• Institute of Ceramics and Building Materials, Refractory Materials Division, ul. Toszecka 99, 44-100 Gliwice, Polska

autor

Karwiński A.

• Foundry Research Institute, ul. Zakopiańska 73, 30-418 Kraków, Polska

autor

Wieliczko P.

• Foundry Research Institute, ul. Zakopiańska 73, 30-418 Kraków, Polska

autor

Asłanowicz M.

• Ferro-Term Sp. z o.o., ul. Przybyszewkiego 176/178, 93-120 Łódź, Polska

autor

Ościłowski A.

• Ferro-Term Sp. z o.o., ul. Przybyszewkiego 176/178, 93-120 Łódź, Polska

Bibliografia

• [1] Janiszewski, K. (2012). Refining of liquid steel from nonmetallic inclusions by filtration. Katowice: „Śląsk” Sp. z o.o. Wydawnictwo Naukowe.
• [2] Zhang, L., Thomas, B.G. (2003). Inclusions in continuous casting of steel, In 24th National Steelmaking Symposium, 26-28 November 2003 (pp. 138-183). Morelia, Mich, Mexico.
• [3] Pierson, H.O. (1993). Handbook of carbon, graphite,diamond and fullerenes, New Jersey: WILEY-VCH Verlag GmbH & Co. KGaA.
• [4] Schwaltzwalder, K., Somers, A.V. (1963). U.S. Patent No. 3,090,094. Detroit, Mich., a corporation of Delaware Filed.
• [5] Lipowska, B., Witek, J., Karwiński, A., Wieliczko, P., Asłanowicz, M., Ościłowski, A., Robak, R. & Muzyka, R. (2013). Carbon ceramic filters for the filtration of metal alloys. Ceramic Materials. 65(4), 412-417.
• [6] Karwiński, A., Małysza M., Wieliczko, P., Gil, A. & Lipowska, B. (2014). The use of innovative ceramic-carbon bonded filters used for filtration of liquid alloys and evaluation of the filtration efficiency. Archives of Foundry Engineering. 14(3), 29-32.