Filter effectiveness in the manufacture of high-chromium steel castings

• Autorzy: Drotlew A. , Garbiak M. , Kubicki J. , Piekarski B. , Stańczyk J.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of studies on the application of ceramic filters in the manufacture of cast hearth plates at the West Pomeranian University of Technology in Szczecin. Castings were poured from the heat-resistant G-X40CrNiSi27-4 cast steel in green sand moulds. The development of casting manufacturing technology included the following studies: analysis of the causes of non-metallic inclusions in high-chromium alloys, computer simulation of mould filling with liquid metal using standard gating systems without filters and new systems with the built-in filter, making pilot castings, quantitative determination of the content of non-metallic inclusions, determination of the oxygen and nitrogen content, and evaluation of the extent of occurrence of the raw casting surface defects. As a result of the conducted studies and analyses, the quality of produced castings was improved, mainly through the reduced content of non-metallic inclusions and better raw casting surface quality.

Słowa kluczowe

EN

innovative technologies; innovative materials; casting process; high-alloyed steel; ceramic filter; hearth plate

PL

technologia innowacyjna; innowacyjny materiał; proces odlewniczy; stal wysokostopowa

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 1
• Strony: 15--20
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.,

Twórcy

autor

Drotlew A.

autor

Garbiak M.

autor

Kubicki J.

autor

Piekarski B.

autor

Stańczyk J.

• West Pomeranian University of Technology, Al. Piastów 17, 70-310 Szczecin, Poland,

Bibliografia

• [1] Piekarski B., Drotlew A., Cast functional accessories for heat treatment furnaces. Archives of Foundry Engineering, 4(2010) pp 183-188.
• [2] Drotlew A., Piekarski B., Heat-resistant furnace parts, trays, and fixtures. Szczecin 2000-2007 (unpublished) (in Polish).
• [3] Piekarski B. i inni, Sprawozdanie CPBR 2.4 cel A 1.2.3, Opracowanie i wdrożenie technologii odlewania nowego staliwa typu Fe-Ni-Cr na części konstrukcyjne pieców do nawęglania. Polit. Szczecińska, Szczecin 1989 (unpublish-ed) (in Polish).
• [4] Chojecki A. Telejko J., Steelfoundry. Ed. KAPIT, Kraków 2003 (in Polish).
• [5] Chojecki A., Hawranek R., Flow of the liquid metals through the ceramic filters. Arch. Odlewnictwa 17(2005)37 (in Polish).
• [6] Asłanowicz M. et al. Use of ceramic filters for the steel castings. Przeg. Odlewnictwa 10(2005)652 (in Polish).
• [7] Drotlew A. et al : Sprawozdanie końcowe Projektu Celowego ROW-II-072/2005 "Udoskonalenie technologii wytwarzania odlewów ze staliwa wysokostopowego", Szczecin 2006 (unpublished) (in Polish).
• [8] Davies R., Clean metal, the "Holy Grail" for all foundries. Foundry Trade Journal, 36/39(2006)283.