Methodology of testing shot blasting machines in industrial conditions

• Autorzy: Wrona R. , Zyzak P. , Ziółkowski E. , Brzeziński M.
• Języki publikacji: EN

Abstrakty

EN

Shot blasting machines are widely used for automated surface treatment and finishing of castings. In shot blasting processes the stream of shots is generated and shaped by blasting turbines, making up a kinetic and dynamic system comprising a separating rotor, an adapting sleeve and a propelling rotor provided with blades. The shot blasting performance- i.e. the quality of shot treated surfaces depends on the actual design and operational parameters of the unit whilst the values of relevant parameters are associated with the geometry of turbine components and the level of its integration with the separator system. The circulation of the blasting medium becomes the integrating factor of the process line, starting from the hopper, through the propeller turbine, casting treatment, separation of contaminated abrasive mixture, to its recycling and reuse. Inferior quality of the abrasive agent (shot) and insufficient purity of the abrasive mixture are responsible for low effectiveness of shot blasting. However, most practitioners fail to fully recognise the importance of proper diagnostics of the shot blasting process in industrial conditions. The wearing of major machine components and of the blasting agent and quality of shot treated surfaces are often misinterpreted, hence the need to take into account all factors involved in the process within the frame of a comprehensive methodology. This paper is an attempt to formulate and apply the available testing methods to the engineering practice in industrial conditions.

Słowa kluczowe

EN

nondestructive testing; finishing treatment; blasting units; operation and maintenance; test methodology

PL

badanie nieniszczące; obróbka wykańczająca; metodyka badań

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 2
• Strony: 97--104
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Wrona R.

autor

Zyzak P.

autor

Ziółkowski E.

autor

Brzeziński M.

• AGH University of Science And Technology Faculty of Foundry Engineering, ul. Reymonta 23, 30-059, Kraków, Poland,

Bibliografia

• [1] Catalogs and brochures manufacturers of foundry machinery and equipment. Technical, Disa GmbH, Wheelabrator Allevard, Pangborn.
• [2] Chudzikiewicz R. (1980). Mechanization and Automation of Foundry. Warszawa: WNT (in Polish).
• [3] Fedoryszyn A., Zyzak P. (2007). Characteristics of the abrasive stream depending on design features and operational parameters of a throwing unit in an airless shot-blasting machine. Archives of Metallurgy and Materials. 52 (3), 401-406.
• [4] Łempicki J., Paradysz J. (1979). Cleaning and finishing of cast iron and steel. Warszawa: WNT (in Polish).
• [5] Wrona R., Ziółkowski E., Ślazyk M., Zyzak P. (2006). Experimental and analytical evaluation of the shot stream geometry wheelabrator blast machine with hangers. IX Konferencja odlewnicza TECHNICAL 2006: Odlewnictwo XXI wieku - Technologie, maszyny i urządzenia odlewnicze, 08-09 czerwiec 2006 (25-30). Nowa Sól: Materiały Konferencyjne.
• [6] Wrona R., Ziółkowski E., Ślazyk M., Zyzak P. (2005). Research and analysis of the purification process of casting lost wax casting method models of the hanger rotor cleaner OWH-1,0×1,5. Kraków: Technical expertise.
• [7] Fedoryszyn A., Zyzak P. (2003). Operation parameters of separators in impeller type shot blasting machines. Acta Metallurgica Slovaca. 2 (8), 319- 324.
• [8] Technical expertise. (2012). Katowice: Wheelblasting.