University of Twente Student Theses
Developing a foundry mould production system using continuously regenerated silica sand with specialised binder
Elferink, T.H. (2024) Developing a foundry mould production system using continuously regenerated silica sand with specialised binder.
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| Abstract: | Sand casting is a well-established method in the foundry industry, continuously innovated for sustainability. Single-use molds generate significant waste, prompting stricter regulations and higher disposal costs. Sodium silicate (waterglass) molds are gaining popularity due to their non-toxic composition and near-zero emissions. Regenerating mold remains into new sand is challenging, especially for waterglass binders. Mechanical wear-based regeneration is feasible but causes high sand losses. A pilot installation was developed for waterglass bound sand regeneration, achieving good casting quality despite low mold strength. The study identified remaining binder film as a key issue, requiring further research for reproducible quality regeneration sand. A heat treatment for regeneration sand was shown to return virgin sand levels of strength. |
| Item Type: | Essay (Master) |
| Faculty: | ET: Engineering Technology |
| Subject: | 52 mechanical engineering |
| Programme: | Mechanical Engineering MSc (60439) |
| Link to this item: | https://purl.utwente.nl/essays/103825 |
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