Manufacturing Scheme of Spherical Grinding Bodies from Abrasion-Resistant Cast Iron Free of Shrinkage Defects

• Autorzy: Pustovalov D. O. , Ablyaz T. , Muratov K. R. , Sharov K. V. , Bogomyagkov A. V. , Shumkov A. A.

Identyfikatory

DOI

10.24425/afe.2019.127141

• Języki publikacji: EN

Abstrakty

EN

This work presents a scheme for the manufacture of spherical grinding bodies used in grinding and crushing machinery as a grinding medium from abrasion-resistant cast iron CHKH16 (according to GOST 7769-82) free of shrinkage defects produced by casting into single sand molds with a vertical joint and by usingcoolers. The grinding efficiency in terms of material destruction and energy consumption has been studied according to a wide range of operating parameters and new scheme for calculating the sprue and supply system has been developed by the authors of the article. Its functionality has been substantiated, particularly the use of a central riser acting as a head and the use of coolers. The conducted numerical simulation has shown the dependence of a solid phase formation over time, which characterizes the direction of the system crystallization and determines the locations of the shrinkage defects concentration. The manufacture of the grinding body with a 100 mm diameter using the considered technology is presented in this paper.

Słowa kluczowe

EN

grinding; abrasion resistant cast iron; defects; casting in sand molds

PL

szlifowanie; żeliwo odporne na ścieranie; wady; odlewanie w formach piaskowych

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 3
• Strony: 66--71
• Opis fizyczny: Bibliogr. 10 poz., fot., rys., tab., wykr.

Twórcy

autor

Pustovalov D. O.

• Perm National Research Polytechnic University, Russia

autor

Ablyaz T.

• Perm National Research Polytechnic University, Russia

autor

Muratov K. R.

• Perm National Research Polytechnic University, Russia

autor

Sharov K. V.

• Perm National Research Polytechnic University, Russia

autor

Bogomyagkov A. V.

• Perm National Research Polytechnic University, Russia

autor

Shumkov A. A.

• Perm National Research Polytechnic University, Russia

Bibliografia

• [1] Powell, M.S. & Vermeulen L.A. (1994). Influence of liner design on the rate of production of fines in rotary mill. Minerals Engineering. 7(2-3), 169-183.
• [2] Cleary, P.W. (2001). Charge behaviour and power consumption in ball mills: sensitivity to mill operating conditions, liner geometry and charge composition. International Journal of Mineral Processing. 63(2), 79-114.
• [3] Dong, H. & Moys, M.H. (2003). Load behaviour and mill power. International Journal of Mineral Processing. 69(1-4), 11-28.
• [4] Rahman, T., Sharif, A. & Shorowordi, K.M. (2010). Development of Grinding Media Balls Using Locally Available Materials. In The Third International Conference on Structure, Processing and Properties of Materials 2010, SPPM 2010 24- 26 February 2010, Dhaka, Bangladesh, SPPM 2010 A11. Retrieved January 14, 2019 from: https://www.researchgate.net/publication/236901127_Development_of_Grinding_Media_Balls_Using_Locally_Available_Materials.
• [5] Pustovalov, D.O., Labutin, V.N., Belova, S.A., Bogomyagkov, A.V. & Sharov, K.V. (2016). Proektirovanie litnikovoy sistemy dlya izgotovleniya melyushchikh tel v peschano-glinistye formy [Designing gating system for the manufacture of grinding bodies in sandy-clay forms]. Metalloobrabotka, 5(95), 51-55.
• [6] Tabrett, C.P. & Sare, I.R. (2000). Fracture toughness of high-chromium white irons: influence of cast structure. Journal od Materials Science. 36(8), 2069-2077.
• [7] Zhang, M.X., Kelly, P.M. & Gates, J.D. (2001). The effect of heat treatment on the toughness, hardness and microstructure of low carbon white cast irons. Journal od Materials Science. 36(16), 3865-3875.
• [8] Kible, A. & Pearce, J.T.H. (1993). Influence of heat treatment on the microstructure and hardness of 19% high chromium cast irons. Cast Metals. 6(1), 9-15.
• [9] Moema, J.S., Papo, M.J., Slabbert, G.A., Zimba, J. (2009). Grinding media quality assurance for the comminution of gold ores. In World Gold Conference 2009, The Southern African Institute of Mining and Metallurgy.
• [10] Trukhov, A.P. (2005). Foundry technology: sand casting: a textbook for universities. Moscow: Academy.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).