Manufacturing Technology 2020, 20(1):110-119 | DOI: 10.21062/mft.2020.001

Cores Produced by Geopolymer Binder System Technology and Impact to Casting Quality in Comparison with PUR Cold Box Amin

Michal Vykoukal1,2, Alois Burian1, Markéta Přerovská1, Milan Luňák3,4, ©tefan Kyselka3
1 SAND TEAM, spol. s r.o., Holubice, Czech Republic
2 V©B –Technical University of Ostrava, Faculty of Materials Science and Technology, Czech Republic
3 BENE© a LÁT a.s., Poříčany, Czech Republic
4 Faculty of Mechanical Engineering J. E. Purkyně University in Ústí nad Labem, Ústí nad Labem, Czech Republic

The article deals with geopolymer binder system for core production and comparison with PUR cold box amin technology. A sodium-potassium type of geopolymer binder is the subject of the research. The goal of the article is the core production and observing of technological properties, storing cores, usage of refractory coating evaluating of properties during the pouring and decoring of casting. The main target of the experiment is casting quality. It was stated that the final surfaces are much more better than PUR cold box amin technology and the internal casting quality is the same, it means without inadmissible internal defects. Worse decoring times were observed. It has been confirmed, that neither emissions, fumes nor unpleasant odours are generated during the production procedure nor during pouring.

Keywords: geopolymer binder system, cold box amin, sand core production, environment, inorganic binder
Grants and funding:

Technology Agency of the Czech Republic, Project TA04011039, Foundry cores with the geopolymer binder.
The project CZ.01.1.02/0.0/0.0/16_084/0010119, Research of the new technology of foundry moulds in self hardened mixtures with the geopolymer binder system.

Prepublished online: July 31, 2020; Published: August 6, 2020  Show citation

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Vykoukal M, Burian A, Přerovská M, Luňák M, Kyselka ©. Cores Produced by Geopolymer Binder System Technology and Impact to Casting Quality in Comparison with PUR Cold Box Amin. Manufacturing Technology. 2020;20(1):110-119. doi: 10.21062/mft.2020.001.
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