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http://dx.doi.org/10.5762/KAIS.2020.21.10.574

Influence of vegetable wax on the moisture strength development of inorganic binder  

Bae, Min A (Korea Institute of Industrial Technology)
Kim, Kyeong Ho (Korea Institute of Industrial Technology)
Lee, Man Sig (Korea Institute of Industrial Technology)
Baek, Jae Ho (Korea Institute of Industrial Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.10, 2020 , pp. 574-580 More about this Journal
Abstract
An inorganic binder is eco-friendly because it can be cured at low temperatures and does not emit harmful gases. In addition, related research is progressing rapidly owing to the small defects in the core. On the other hand, inorganic binders based on silicates (SiO2-Na2O) have unique absorbent properties. This results in the absorption of moisture from the air and the weakening of the bonding force. In particular, the castings used in cast steel require high-strength properties because of the higher temperatures than aluminum castings. In this study, waxes containing ester groups were selected to improve the absorption of moisture of inorganic binders. The inorganic binder was characterized by X-ray fluorescence and thermogravimetric analysis-differential thermal analysis. The inorganic binder core strength was then evaluated. In the case of an inorganic binder containing wax, the water resistance increased to 216 N/㎠, confirming the up to 55% improvement in strength. Excellent casting characteristics were confirmed through steel castings.
Keywords
Inorganic Binder; Wax; Steel Casting; Sand Core; Inorganic core;
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Times Cited By KSCI : 2  (Citation Analysis)
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