2017 Volume 89 Issue 8 Pages 504-509
A novel sand reclaiming system for artificial sand was proposed in this report. In this system, recovery sand was grinded by adding a small amount of water and dried. The residue of resin (LOI) was then removed by the reclamation machine with a fluidized bed. When this sand reclaiming system was adopted for recovering artificial sand using an alkaline phenolic binder, significant reduction of LOI was achieved. The use of reclaimed sand using this system made it possible to make molds using smaller quantities of resin. As a result, it was possible to realize lower gas emission mold, which contributed to the improvement of casting quality. The practical application of this system in the cast steel factory is also introduced.
