The Research on Characterization of Crushability for Foundry Sand Particles

Yu Dai, Quan-yang Ma, Xiao-hua Li, Xi Zhang, Fa-ping Hu, Yun Zhang, Wei-dong Xie
2017 Archives of Foundry Engineering  
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
more » ... crostructure 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.
doi:10.1515/afe-2017-0161 fatcat:wdiabms55bej7dwh2esklglxsm