Properties shaping and repair of selected types of cast iron

• Autorzy: Szajnar J. , Stawarz M. , Wróbel P. , Wróbel T.
• Języki publikacji: EN

Abstrakty

EN

The paper presents research results of twofold use of TIG - Tungsten Inert Gas also known as GTA - Gas Tungsten Arc. First is surfacing by welding on cold and hot-cold to repair chromium cast iron with chromium content about 15%. Second is remelting with electric arc of selected gray (with pearlitic matrix) and ductile (with ferritic-pearlitic matrix) cast iron. Repair of cast iron elements was realized in order to cut out a casting defects. Defects decrease a usability of castings for constructional application and increase a manufacturing costs. Application of surface heat treatment guarantees mechanical properties i.e. hardness and wear resistance improvement. The result of investigations show possibility of castings repair by put on defects a good quality padding welds, which have comparable properties with base material. Use of electric arc surface heat treatment resulted in increase of hardness and wear resistance, which was measured on the basis of ASTM G 65 - 00 standard.

Słowa kluczowe

EN

heat treatment; casting defects; cast iron; TIG; chromium

PL

obróbka cieplna; wady odlewnicze; żeliwo

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2007
• Tom: Vol. 7, iss. 2
• Strony: 87--90
• Opis fizyczny: Bibliogr. 16 poz., rys., tab.

Twórcy

autor

Szajnar J.

autor

Stawarz M.

autor

Wróbel P.

autor

Wróbel T.

• Zakład Odlewnictwa, Politechnika Śląska, ul. Towarowa 7, 44-100 Gliwice,

Bibliografia

• [1] W. Sakwa: Cast iron, Silesian Publishers, Katowice, 1974 (in Polish).
• [2] M. Przybył, A. Studnicki, J. Kilarski: Distribution of stereological parameters of chromium cast iron on section castings, Archives of Foundry, No 10, vol. 3, 2003 (in Polish).
• [3] M. Przybył, A. Studnicki: Influence of heat treatment on select properties of wear resistance chromium cast steel, Archives of Foundry, No 22, vol. 6, 2006 (in Polish).
• [4] A. Studnicki: Record of primary and secondary crystallization process of wear resistance chromium cast iron, Archives of Foundry, No 22, vol. 6, 2006 (in Polish).
• [5] C. Podrzucki: Cast iron, ZG STOP Publishers, Kraków, 1991 (in Polish).
• [6] M. Stawarz, J. Szajnar: Qualification mechanical properties of ductile cast iron with ATD method, Archives of Foundry, No 15, vol. 5, 2005 (in Polish).
• [7] A. W. Orłowicz, A. Trytek: Solidification structure GTAW-treated iron castings, Archives of Foundry, No 4, vol. 2, 2002.
• [8] A. W. Orłowicz, A. Trytek: Structure of surface fusion zone on ductile iron castings, Archives of Foundry, No 10, vol. 3, 2003 (in Polish).
• [9] J. Szajnar, P. Wróbel, T. Wróbel: TIG surfacing - method of repair chromium cast iron with castings defects, Archives of Foundry, No 22, vol. 6, 2006 (in Polish).
• [10] J. Lassociński: Ductile cast iron and their weldability, Welding Review, No 12, 1979 (in Polish).
• [11] http://www.at-co.com/gtawelding.html
• [12] E. Laugsceider, G. Langer: Plasma-arc powder surfacing - comparsion of standard and high-productivity processes. Schweissen&Schneiden, Nr 2, 1998.
• [13] A. Klimpel: Surfacing by welding and thermal spraying - technology WNT, Warszawa, 2000 (in Polish).
• [14] J. Pilarczyk, J. Pilarczyk: Welding of metals, Silesian Publishers, Katowice, 1996 (in Polish).
• [15] W. Lucas: Arc surfacing and cladding processes, Weldnig & Metal Fabrication, No 2, 1994.
• [16] Standard ASTM G 65 - 00.