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Effect of Powder Breakdown Additives on Properties of Ester-Hardened Sodium Silicate Bonded Ceramic Sand

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Abstract

The sand systems containing sodium silicate binder have excellent casting quality and eco-friendly advantages. However, the poor collapsibility of sodium silicate bonded sand (SSBS) makes it difficult for foundries to recycle used sand. Thus, many investigations have been performed recently to improve the collapsibility of SSBS. In this study, the powder breakdown additives alumina (Al2O3), silicon carbide (SiC) and boron nitride (BN) were used as modifiers to further improve the collapsibility of ester-hardened sodium silicate bonded ceramic sand (SSBCS) on the basis of modified sodium silicate, and the specific parameters were optimized by orthogonal experiments. The results of orthogonal experiment showed the optimum additive amount of Al2O3, SiC and BN were 0.4%, 0.3% and 0.1% of ceramic sand, and the addition of modifiers effectively increased the 1h tensile strength and further reduced the residual strength of the SSCBS. The experimental results indicated that the difference of the linear expansion coefficient between the modifiers, the new phase AlN formed by the modified sand sample and the phases Na3PO4, Na4B2O5 formed by the unmodified sand sample effectively accelerated the generation of many coarse pores and very big cracks on the bonded bridge in the process of heating at 950 °C and cooling, thereby resulting in the improvement in the collapsibility of SSBCS.

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References

  1. L. Zaretskiy, Microsilica in sodium silicate bonded sands. Int. J. Metalcast. 13, 58–73 (2019). https://doi.org/10.1007/s40962-018-0247-y

    Article  CAS  Google Scholar 

  2. L. Zaretskiy, Hydrous solid silicates in new foundry binders. Int. J. Metalcast. 12, 275–291 (2018). https://doi.org/10.1007/s40962-017-0155-6

    Article  Google Scholar 

  3. M. Holtzer, R. Dańko, A. Kmita, Influence of a reclaimed sand addition to moulding sand with furan resin on its impact on the environment. Water Air Soil Pollut. 227, 16 (2016). https://doi.org/10.1007/s11270-015-2707-9

    Article  CAS  Google Scholar 

  4. S.G. Acharya, J.A. Vadher, M. Sheladiya, A furan no-bake binder system analysis for improved casting quality. Int. J. Metalcast. 10, 491–499 (2016). https://doi.org/10.1007/s40962-016-0059-x

    Article  Google Scholar 

  5. L. Zaretskiy, Modified silicate binders new developments and applications. Int. J. Metalcast. 10, 88–99 (2016). https://doi.org/10.1007/s40962-015-0005-3

    Article  Google Scholar 

  6. X.L. Zhang, Y.Q. Wu, Y.C. Hu, Research on the properties of nanoparticles modified sodium silicate adhesive. Adv. Mater. Res. 557–559, 1825–1829 (2012). https://doi.org/10.4028/www.scientific.net/AMR.557-559.1825

    Article  CAS  Google Scholar 

  7. V. LaFay, Application of no-bake sodium silicate binder systems. Int. J. Metalcast. 6, 19–26 (2012). https://doi.org/10.1007/BF03355530

    Article  CAS  Google Scholar 

  8. Z.T. Fan, N.Y. Huang, X.P. Dong, In house reuse and reclamation of used foundry sands with sodium silicate binder. Int. J. Cast. Metal. Res. 17, 51–56 (2004). https://doi.org/10.1179/136404604225020551

    Article  CAS  Google Scholar 

  9. J.T. Fox, J.F. Allen, F.S. Cannon et al., Full-scale demonstration of a hybrid hydrolyzed collagen-alkali silicate core binder. Int. J. Metalcast. 9, 51–61 (2015). https://doi.org/10.1007/BF03355623

    Article  Google Scholar 

  10. L.C. Wang, W.M. Jiang, X.L. Gong et al., Recycling water glass from wet reclamation sewage of waste sodium silicate-bonded sand. China Foundry 16, 198–203 (2019). https://doi.org/10.1007/s41230-018-8165-4

    Article  Google Scholar 

  11. N. Ünlü, A. Odabaş, Development and evaluation of a new eco-friendly sodium silicate-based binder system. Int. J. Metalcast. 12, 765–771 (2018). https://doi.org/10.1007/s40962-018-0210-y

    Article  CAS  Google Scholar 

  12. M.V. Akulova, T.E. Slizneva, Y.A. Sokolova et al., Nanostructuring sodium silicate solutions applied as binding substance of molding sands in foundry. IOP Conf. Ser. Mater. Sci. Eng. 560, 012136 (2019). https://doi.org/10.1088/1757-899X/560/1/012136

    Article  CAS  Google Scholar 

  13. Y.F. Fan, D.N. Li, Study on the properties of magnetization modified sodium silicate sand. Adv. Mater. Res. 291–294, 645–651 (2011). https://doi.org/10.4028/www.scientific.net/AMR.291-294.645

    Article  CAS  Google Scholar 

  14. F.C. Liu, L. Yang, Y. Huang et al., Performance of resin bonded sand for magnesium alloy casting. J. Manuf. Process 30, 313–319 (2017). https://doi.org/10.1016/j.jmapro.2017.10.002

    Article  Google Scholar 

  15. M.B. Parappagoudar, D.K. Pratihar, G.L. Datta, Neural network-based approaches for forward and reverse mappings of sodium silicate-bonded, carbon dioxide gas hardened moulding sand system. Mater. Manuf. Process 24, 59–67 (2009). https://doi.org/10.1080/10426910802543681

    Article  CAS  Google Scholar 

  16. Y.H. Qu, Y.B. Zhou, The modification of Na5P3O10 on the properties of sodium silicate. Foundry Technol. (1999). https://doi.org/10.3969/j.issn.1000-8365.1999.03.018. (in Chinese)

    Article  Google Scholar 

  17. C. Yang, Effect of ultra-fine powder modifying sodium silicate on foundry sand. Hot Work. Technol. 43, 82–84 (2014). https://doi.org/10.14158/j.cnki.1001-3814.2014.19.020. (in Chinese)

    Article  Google Scholar 

  18. H.C. Li, L.K. Meng, Z.Z. Zhao, et al., The study on the compound disperser of cold-setting sodium silicate sand. Hot Work. Technol. (2002). https://doi.org/10.3969/j.issn.1001-3814.2002.03.009. (in Chinese)

    Article  Google Scholar 

  19. S.M. Dobosz, K. Major-Gabryś, The mechanism of improving the knock-out properties of moulding sands with water glass. Arch. Foundry Eng. 8, 37–42 (2008). https://doi.org/10.1017/S0008197313000482

    Article  CAS  Google Scholar 

  20. M. Zhang, N. Cheng, C. Zhao et al., Effect of compound modifier on properties of CO2 hardened sodium silicate bonded sand. Foundry 68, 176–180 (2019). https://doi.org/10.3969/j.issn.1001-4977.2019.02.014. (in Chinese)

    Article  Google Scholar 

  21. G.L. Song, X.S. Du, M. Zhang et al., Parametric optimization of modifiers for ester-hardened sodium silicate bonded sand. Mater. Manuf. Processes 35, 531–536 (2020). https://doi.org/10.1080/10426914.2020.1718697

    Article  CAS  Google Scholar 

  22. D.J. Gong, B.R. Wei, Y.Y. Liu, et al., Influence of materials linear expansion coefficient on tensile shear performance. China Adhes. 17, 37–40 (2008). https://doi.org/10.3969/j.issn.1004-2849.2008.10.010. (in Chinese)

    Article  Google Scholar 

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Authors and Affiliations

  1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China

    Hulin Miao, Xueshan Du, Yufu Sun, Ming Zhang & Guoli Song

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  1. Hulin Miao
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  2. Xueshan Du
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Correspondence to Xueshan Du.

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Miao, H., Du, X., Sun, Y. et al. Effect of Powder Breakdown Additives on Properties of Ester-Hardened Sodium Silicate Bonded Ceramic Sand. Inter Metalcast 15, 710–718 (2021). https://doi.org/10.1007/s40962-020-00517-z

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