Assessment of Foundry Chromite Sand Crushability under Thermal-Mechanical Loading

• Autorzy: Kabasele Jonathan K. , Nyembwe Kasongo D. , Polzin H.

Identyfikatory

DOI

10.24425/afe.2023.144310

• Języki publikacji: EN

Abstrakty

EN

When used for sand casting, foundry sand is stressed in several ways. These stresses, thermal and mechanical, compromise the grain integrity, resulting in size reduction and the production of small particles to the point where the sand is no longer viable for sand casting. This study evaluates the crushability of chromite sand, a crucial characteristic for determining how resistant sand is to size reduction by crushing. To replicate the heat and mechanical strain that sand is subjected to during the industrial sand-casting process, a sinter furnace and rod mill were employed. After nine minutes of heat and mechanical stress application, the crushing ratio, which was used to gauge the crushability of chromite sand, ranged from 1.72 to 1.92 for all samples. There were differences in the rate at which fine particles were produced among the samples, with sample E producing the highest proportion of fine particles in the same length of time. Understanding the properties that control the crushability performance of chromite sand will enable foundries to buy chromite sand with higher recycling yield, reducing the environmental impact of waste foundry sand and eliminating the risk to the workforce's pulmonary health in line with the current industry standards. Foundries will also be able to optimize the current industrial process while continually pushing for innovative foundry technologies and materials.

Słowa kluczowe

EN

innovative foundry technologies; innovative foundry materials; environment protection; crushability; chromite sand; moulding aggregates

PL

innowacyjne technologie odlewnicze; innowacyjne materiały odlewnicze; ochrona środowiska; kruszalność; piasek chromitowy; agregaty formierskie

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2023
• Tom: Vol. 23, iss. 3
• Strony: 16--21
• Opis fizyczny: Bibliogr. 9 poz., il., rys., tab., wykr.

Twórcy

autor

Kabasele Jonathan K.

• Department of Metallurgy, University of Johannesburg, Doornfontein, Johannesburg, South Africa

• https://orcid.org/0000-0003-4488-5544

autor

Nyembwe Kasongo D.

• Department of Metallurgy, University of Johannesburg, Doornfontein, Johannesburg, South Africa

• https://orcid.org/0000-0003-1802-699X

autor

Polzin H.

• Peak Deutschland GmbH, Dresdner Nossen, Germany

Bibliografia

• [1] Campbell, J. (2015). Complete Casting Handbook. UK: Second ed.. Butterworth-Heinemann.
• [2] Güngen, A.C., Aydemir, Y., Çoban, H., Düzenli, H. & Tasdemir, C. (2016). Lung cancer in Patients Diagnosed with Silicosis Should be Investigated. Respiratory Medicine Case Reports. 18(1), 93-95. DOI: 10.1016/j.rmcr.2016.04.011.
• [3] Dai, Y., Ma, Q.Y., X.H. Li, X.H., Zhang, X., Hu, F.P., Zhang, Y. & Xie, W.D. (2017). The research on characterization of crushability for foundry sand particles. Archives of Foundry Engineering. 17(4), 231-235. DOI:10.1515/afe-2017-0161.
• [4] Khan, M.M., Mahajani, S.M., Jadhav, G.N., Vishwakarma, R., Malgaonkar, V. & Mandre, S. (2021). Mechanical and thermal methods for reclamation of waste foundry sand. Journal of Environmental Management. 279(1), 111628. https://doi.org/10.1016/j.jenvman.2020.111628.
• [5] Dańko, J.S., Dańko, R. & Holtzer, M. (2003). Reclamation of used sand in foundry production. Metalurgija. 42(3), 173-177. ISSN 0543-5846.
• [6] Ghormley, S., Williams, R. & Dvorak, B. (2020). Foundry sand source reduction options: Life cycle assessment evaluation. Environments. 7(9), 66, 1-15. https://doi.org/10.3390/environments7090066.
• [7] Das, S.K.. & Das, A. (2022). A critical state based viscoplastic model for crushable granular materials. Soils and Foundations. 62(1), 1-16. https://doi.org/10.1016/ j.sandf.2021.101093.
• [8] Kabasele, J.K. (2022). Investigation of South African Foundry Chromite sand Crushability, Masters thesis. Johannesburg: University of Johannesburg
• [9] Kabasele, J.K. & Nyembwe, K.D. (2021). Assessment of local chromite sand as ‘green’ refractory raw materials for sand casting applications. South African Journal of Industrial Engineering. 32(2), 65-74. http://dx.doi.org/10.7166/32-3-2615.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024)