Asian Journal of Science and Applied Technology (AJSAT)
Analysis of Chemically Bonded Sand Used for Molding in FoundryAuthor : Digvijay A. Mhamane, Suyog B. Rayjadhav and Vasudev D. Shinde
Volume 7 No.1 January-June 2018 pp 11-16
In casting industry the selection of mold material and molding method is challenging task. There are several types of molding methods, but over 70% of all metal castings are generally developed by means of sand molding (sand casting). Sand casting has two processes such as, green sand casting and chemically bonded sand casting process. This paper focuses on chemically bonded sand casting i.e. no-bake sand system (self-hardening system), among from all types of no-bake sand system, alkaline phenolic ester cured (ALPHASET) and furan acid cured no-bake system are preferably discussed. Curing mechanism of all type of no-bake systems are shown along with detailing about ALPHASET and furan no-bake sand system.
Alkaline phenolic resin, Furan, Resole Resin No-bake sand system, Curing Mechanism
 J. J. Archibald and R. L. Smith, “Resin Binder Processes” ASM Handbook, Vol. 16, 1998.
 J. R. Brown, Foseco Non-Ferrous Foundryman’s Handbook, Butterworth-Heinemann, ISBN 0 7506 4286 6, 11th Ed., 1999.
 E. Ireland, K. Chang and J. Kroker, “New Horizon in Nobake Binder Technology”, AFS Transactions, Vol. 02, No. 025, pp. 1-7, 2002.
 Dalquist and Gutowski, “Life Cycle Analysis of Conventional Manufacturing Techniques: Sand Casting”, ASME International Mechanical Engineering Congress and Exposition IMECE2004-62599, pp. 1-11, 2004.
 L. Pilato, “Phenolic Resin: A Century of Progress”, Springer, 1st Ed., 2010.
 Campbell J., “Complete Casting Handbook, Metal Casting Processes, Metallurgy, Techniques and Design”, Elsevier Ltd, 1st Ed., 2011.
 R. Banchhor and S. K. Ganguly, “Optimization in Green Sand Casting Process For Efficient, Economical and Quality Casting”, International Journal of Advanced Engineering Technology, Vol. 5, pp. 25-29, 2014.
 M. Holtzer and R. Danko, “Microstructure and Properties of Ductile Iron and Compacted Graphite Iron Castings”, Springer Briefs in Materials, pp. 27-42, 2015.
 M. Holtzer, S. Żymankowska–Kumon, A. Bobrowski, A. Kmita and R.Dańko, “Influence of the Reclaim Addition to the Moulding Sand Matrix Obtained in the ALPHASET Technology on the Emission of Gases – Comparison with Moulding Sand with Furfuryl Resin”, Archives of Foundry Engineering, Vol. 15, pp. 121-125, 2015.
 H.Khandelwal and B. Ravi, “Effect of Binder Composition on the Shrinkage of Chemically Bonded Sand Cores”, Materials and Manufacturing Processes, Vol. 30, pp. 1465-1470, 2015.
 M. Holtzer, R.Dańko and A. Kmita, “Influence of a Reclaimed Sand Addition to Moulding Sand with Furan Resin on Its Impact on the Environment Water Air Soil Pollution”, Springer, Vol. 16, pp. 1-12, 2016.
 A. Kmita, C. Fischer, K. Hodor, M. Holtzer and A. Roczniak, “Thermal decomposition of foundry resins: A determination of organic products by thermogravimetry–gas chromatography–mass spectrometry (TG–GC–MS)”, Arabian Journal of Chemistry, pp. 1-8, 2016.
 “HA International, Technical sheet”.