Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings
The production of cores for the pre-casting of holes in castings places high demands on the quality of the molding mixtures used. For this reason, organic binders are still used to a large extent, which, although they meet the technological requirements, are a source of pollutant emissions during th...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/11/1779 |
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| author | Tomáš Obzina Václav Merta Martin Folta Josef Bradáč Jaroslav Beňo Nikol Novohradská Martina Gawronová Ivana Kroupová Petr Lichý Filip Radkovský Kamila Janovská Iveta Vasková Klára Drobíková Isabel Nguyenová |
| author_facet | Tomáš Obzina Václav Merta Martin Folta Josef Bradáč Jaroslav Beňo Nikol Novohradská Martina Gawronová Ivana Kroupová Petr Lichý Filip Radkovský Kamila Janovská Iveta Vasková Klára Drobíková Isabel Nguyenová |
| author_sort | Tomáš Obzina |
| collection | DOAJ |
| description | The production of cores for the pre-casting of holes in castings places high demands on the quality of the molding mixtures used. For this reason, organic binders are still used to a large extent, which, although they meet the technological requirements, are a source of pollutant emissions during the production of castings. The current trend towards greening production is therefore looking for a suitable alternative in ‘green’ inorganic binders. Although for many decades standard inorganic binders could not be compared with organic resins in terms of technological properties, new inorganic binder systems are currently being developed that can largely eliminate these disadvantages, which include, in particular, significantly lower collapsibility and reclaimability, and lower mechanical strength values. Last but not least, the use of these binder systems may be limited by the technological parameter of shelf-life, which is the main focus of this study. The aim of this paper is to evaluate the influence of technological parameters of core production using a new generation of inorganic binder systems on their shelf-life. Shelf-life, defined as the change in mechanical strength and wear resistance as a function of exposure time in a given environment, is evaluated under different climatic conditions. |
| first_indexed | 2024-03-10T05:16:29Z |
| format | Article |
| id | doaj.art-29b86c2df22a4ca3b70d4aad6602f882 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T05:16:29Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-29b86c2df22a4ca3b70d4aad6602f8822023-11-23T00:23:28ZengMDPI AGMetals2075-47012021-11-011111177910.3390/met11111779Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of CastingsTomáš Obzina0Václav Merta1Martin Folta2Josef Bradáč3Jaroslav Beňo4Nikol Novohradská5Martina Gawronová6Ivana Kroupová7Petr Lichý8Filip Radkovský9Kamila Janovská10Iveta Vasková11Klára Drobíková12Isabel Nguyenová13Faculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicDepartment of Production, Logistics and Quality Management, ŠKODA AUTO University, 293 01 Mladá Boleslav, Czech RepublicDepartment of Mechanical and Electrical Engineering, ŠKODA AUTO University, 293 01 Mladá Boleslav, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials Science and Technology, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicFaculty of Materials, Metallurgy and Recycling, Technical University of Košice, 042 00 Košice, SlovakiaNanotechnology Centre, CEET, VSB—Technical University of Ostrava, 708 00 Ostrava, Czech RepublicBrembo Czech, s.r.o., 720 00 Ostrava, Czech RepublicThe production of cores for the pre-casting of holes in castings places high demands on the quality of the molding mixtures used. For this reason, organic binders are still used to a large extent, which, although they meet the technological requirements, are a source of pollutant emissions during the production of castings. The current trend towards greening production is therefore looking for a suitable alternative in ‘green’ inorganic binders. Although for many decades standard inorganic binders could not be compared with organic resins in terms of technological properties, new inorganic binder systems are currently being developed that can largely eliminate these disadvantages, which include, in particular, significantly lower collapsibility and reclaimability, and lower mechanical strength values. Last but not least, the use of these binder systems may be limited by the technological parameter of shelf-life, which is the main focus of this study. The aim of this paper is to evaluate the influence of technological parameters of core production using a new generation of inorganic binder systems on their shelf-life. Shelf-life, defined as the change in mechanical strength and wear resistance as a function of exposure time in a given environment, is evaluated under different climatic conditions.https://www.mdpi.com/2075-4701/11/11/1779foundryinorganic bindersshelf-lifeWARM-BOXsurface product quality |
| spellingShingle | Tomáš Obzina Václav Merta Martin Folta Josef Bradáč Jaroslav Beňo Nikol Novohradská Martina Gawronová Ivana Kroupová Petr Lichý Filip Radkovský Kamila Janovská Iveta Vasková Klára Drobíková Isabel Nguyenová Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings Metals foundry inorganic binders shelf-life WARM-BOX surface product quality |
| title | Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings |
| title_full | Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings |
| title_fullStr | Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings |
| title_full_unstemmed | Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings |
| title_short | Technological and Quality Aspects of the Use of Innovative Inorganic Binders in the Production of Castings |
| title_sort | technological and quality aspects of the use of innovative inorganic binders in the production of castings |
| topic | foundry inorganic binders shelf-life WARM-BOX surface product quality |
| url | https://www.mdpi.com/2075-4701/11/11/1779 |
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