The Research on Characterization of Crushability for Foundry Sand Particles

• Autorzy: Dai Y. , Ma Q. Y. , Li X. H. , Zhang X. , Hu F. P. , Zhang Y. , Xie W. D.

Identyfikatory

DOI

10.1515/afe-2017-0161

• Języki publikacji: EN

Abstrakty

EN

In this paper, crushability of foundry sand particles was studied. Three kinds of in-service silica sands in foundry enterprises selected as the study object, and foundry sand particles were subjected to mechanical load and thermal load during service were analyzed. A set of methods for simulating mechanical load and thermal load by milling and thermal-cold cycling were designed and researched, which were used to characterize the crushability for silica sand particles, the microstructure was observed by SEM. According to the user’s experience in actual application, the crushability of Sand C was the best and then Sand B, the last Sand A. The results indicated that mechanical load, thermal load and thermal-mechanical load can all be used to characterize the crushability of foundry sand particles. Microscopic appearances can qualitatively characterize the crushability of foundry sand particles to a certain extent, combining with the additions and cracks which are observed on the surface.

Słowa kluczowe

EN

foundry sand particle; mechanical load; AFS grain fineness; crushability

PL

piasek odlewniczy; obciążenie mechaniczne; rozdrobnienie ziarna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2017
• Tom: Vol. 17, iss. 4
• Strony: 231--235
• Opis fizyczny: Bibliogr. 8 poz., rys., tab., wykr.

Twórcy

autor

Dai Y.

• College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

autor

Ma Q. Y.

• College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

autor

Li X. H.

• Ministry of Optical Mechanism, Shenzhen Huaxing Photoelectric Technology Co. Ltd, Shenzhen, 518000, China

autor

Zhang X.

• College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

autor

Hu F. P.

• College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

autor

Zhang Y.

• College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

autor

Xie W. D.

• College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

Bibliografia

• [1] Cheng, C.Z., Niu, Z.R. & Recho, N. (2012). Effect of non-singular stress on the brittle fracture of V-notched structure. International Journal of Fracture. 174(2), 127-138.
• [2] Ezaoui, A., Lecompte, T., Benedetto, H.D. & Garcia, E. (2010). Effects of various loading stress paths on the stress-strain properties and on crushability of an industrial soft granular material. Granular Matter. 13(4), 283-301.
• [3] Hoyos-Lopez, M.D., Perez-Aguilar, N.V. & Hernandez-Chavero, J.E. (2016). Imging of silica sand to evaluateits its quality to use ot as foundry core sand. International Journal of Metalcasting. 1-7.
• [4] Danha, G., Legodi, D., Hlabangana, H., Bhondayi, C. & Hildebrandt, D. (2016). A fundamental investigation on the breakage of a bed of silica sand particles: An attainable region approach. Powder Technology. 301, 1208-1212.
• [5] Kjaernsli, B., & Sande, A. (1963). Compressibility of some coarse-grained materials. In Proc. Wiesbaden Eur. Conf, Soil Mech. Found. Eng (pp. 245-251), Weisbaden, Germany.
• [6] Lee, K.L. & Farhoomand, I. (2011). Compressibility And Crushing of Granular Soil In Anisotropic Triaxial Compression. Canadian Geotechnical Journal. 4(1), 68-86.
• [7] Liu, C.Q. & Wang, R. (1999). Particle crushing evaluation and energy formula of calcareous sand in triaxial shear. Journal of engineering geology. 7(4), 366-371.
• [8] Xu, Y.f. & Lin, F. (2006).Strength and deformation of granular materials. Rock and soil mechanics. 27(3), 348-352.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).