The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process
The production of high pressure die casts also brings difficulties regarding the processing of the waste material. It is mainly formed by runners, overflows and other foundry supplements used and, in the case of machines using the cold chamber, also the remainder from this chamber. As this material...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-03-01
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| Series: | Archives of Foundry Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/122765/PDF/AFE%201_2022_10%20Issue%201_2022.pdf |
| _version_ | 1797804118835724288 |
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| author | S. Gaspar J. Majerník A. Trytek M. Podaril Z. Benova |
| author_facet | S. Gaspar J. Majerník A. Trytek M. Podaril Z. Benova |
| author_sort | S. Gaspar |
| collection | DOAJ |
| description | The production of high pressure die casts also brings difficulties regarding the processing of the waste material. It is mainly formed by runners, overflows and other foundry supplements used and, in the case of machines using the cold chamber, also the remainder from this chamber. As this material is often returned to the production process, we refer to it as return material. In the production process, it is therefore essential to deal with the proportion issue of return material against primary material that can be added to the melt to maintain the required cast properties. The submitted article monitors the quality properties of the alloy, selected mechanical properties of casts and porosity depending on the proportion of the return material in the melt. At the same time, the material savings are evaluated with regards to the amount of waste and the economic burden of the foundries. To monitor the above-mentioned factors, series of casts were produced from the seven melting process variants with a variable ratio of return to the primary material. The proportion ratio of return material in the primary alloy was adjusted from 100% of the primary alloy to 100% of the return material in the melting process. It has been proven that with the increasing proportion of the return material, the chemical composition of the melt changes, the mechanical properties of the alloy decrease and the porosity of the casts increases. Based on the results of the tests and analyzes, the optimal ratio of return and primary material in the melting process has been determined. Considering the prescribed quality of the alloy and mechanical properties, concerning the economic indicator of the savings, the ratio is set at 70:30 [%] in favor of the primary material. |
| first_indexed | 2024-03-13T05:32:22Z |
| format | Article |
| id | doaj.art-3aec8836b89b422a88b448d3c7297d1a |
| institution | Directory Open Access Journal |
| issn | 2299-2944 |
| language | English |
| last_indexed | 2024-03-13T05:32:22Z |
| publishDate | 2022-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Foundry Engineering |
| spelling | doaj.art-3aec8836b89b422a88b448d3c7297d1a2023-06-14T15:21:40ZengPolish Academy of SciencesArchives of Foundry Engineering2299-29442022-03-01vol. 22No 16976https://doi.org/10.24425/afe.2022.140219The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production ProcessS. Gaspar0https://orcid.org/0000-0002-5314-2120J. Majerník1https://orcid.org/0000-0003-0320-620XA. Trytek2https://orcid.org/0000-0001-5981-8892M. Podaril3https://orcid.org/0000-0001-6727-8478Z. Benova4https://orcid.org/0000-0002-8238-4591Faculty of Manufacturing Technologies of the Technical University of Košice with the seat in Prešov, Slovak RepublicInstitute of Technology and Business in České Budějovice, Czech RepublicThe Faculty of Mechanics and Technology in Stalowa Wola, PolandInstitute of Technology and Business in České Budějovice, Czech RepublicInstitute of Technology and Business in České Budějovice, Czech RepublicThe production of high pressure die casts also brings difficulties regarding the processing of the waste material. It is mainly formed by runners, overflows and other foundry supplements used and, in the case of machines using the cold chamber, also the remainder from this chamber. As this material is often returned to the production process, we refer to it as return material. In the production process, it is therefore essential to deal with the proportion issue of return material against primary material that can be added to the melt to maintain the required cast properties. The submitted article monitors the quality properties of the alloy, selected mechanical properties of casts and porosity depending on the proportion of the return material in the melt. At the same time, the material savings are evaluated with regards to the amount of waste and the economic burden of the foundries. To monitor the above-mentioned factors, series of casts were produced from the seven melting process variants with a variable ratio of return to the primary material. The proportion ratio of return material in the primary alloy was adjusted from 100% of the primary alloy to 100% of the return material in the melting process. It has been proven that with the increasing proportion of the return material, the chemical composition of the melt changes, the mechanical properties of the alloy decrease and the porosity of the casts increases. Based on the results of the tests and analyzes, the optimal ratio of return and primary material in the melting process has been determined. Considering the prescribed quality of the alloy and mechanical properties, concerning the economic indicator of the savings, the ratio is set at 70:30 [%] in favor of the primary material.https://journals.pan.pl/Content/122765/PDF/AFE%201_2022_10%20Issue%201_2022.pdfhpdcproduct developmentquality managementmechanical propertiescastings defects |
| spellingShingle | S. Gaspar J. Majerník A. Trytek M. Podaril Z. Benova The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process Archives of Foundry Engineering hpdc product development quality management mechanical properties castings defects |
| title | The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process |
| title_full | The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process |
| title_fullStr | The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process |
| title_full_unstemmed | The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process |
| title_short | The Effect of the Return Material Implementation into the Production of Silumin Casts on Technological and Economic Indicators of Production Process |
| title_sort | effect of the return material implementation into the production of silumin casts on technological and economic indicators of production process |
| topic | hpdc product development quality management mechanical properties castings defects |
| url | https://journals.pan.pl/Content/122765/PDF/AFE%201_2022_10%20Issue%201_2022.pdf |
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