The Influence of different die geometries on the Extrusion Process of High-Consistency Silicone Rubber
| dc.date.accessioned | 2022-06-22T09:36:39Z | |
| dc.date.available | 2022-06-22T09:36:39Z | |
| dc.date.issued | 2019 | |
| dc.identifier | doi:10.17170/kobra-202206216373 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/13941 | |
| dc.language.iso | eng | eng |
| dc.publisher | Society of Plastics Engineers | |
| dc.rights | Namensnennung 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
| dc.subject.ddc | 660 | |
| dc.title | The Influence of different die geometries on the Extrusion Process of High-Consistency Silicone Rubber | eng |
| dc.type | Konferenzveröffentlichung | |
| dcterms.abstract | Silicone Rubber and especially High-Consistency Silicone Rubber (=HCR), are typically processed in the extrusion process. Due to the high requirements in terms of the ma-terial properties and the geometric dimensions, a funda-mental knowledge of the whole process including experi-ences in tool design are essential. In this study, HCR with different Shore-hardnesses are extruded on a vertical silicone extrusion line with various breaker plates with different length to diameter ratios (=L/D-ratio) in order to analyze the influence on the whole extrusion process. It has been shown that soft materials, regardless of die geometry, achieve higher throughputs compared to harder compounds. Increasing counter pressure, e.g. due to long-er die lengths, reduces the volume flow rate per revolution and reduces the throughput. Tools with a small L/D ratio achieve the highest throughput. With regard to die design, it can be seen that dies with a smaller L/D ratio have clear advantages: due to their short length, they represent a smaller pressure consumer. As a result, the dwell time in the extruder is shorter and the risk of scorch is reduced. The absolute value of the swelling behavior is larger, but can be predicted with high accuracy. Shorter tools also show less flow instabilities. | eng |
| dcterms.accessRights | open access | |
| dcterms.creator | Verheyen, Fabian | |
| dcterms.creator | Giesen, Ralf-Urs | |
| dcterms.creator | Heim, Hans-Peter | |
| dc.subject.swd | Extrudieren | ger |
| dc.subject.swd | Siliconkautschuk | ger |
| dc.subject.swd | Geometrie | ger |
| dc.subject.swd | Stoffeigenschaft | ger |
| dc.type.version | publishedVersion | |
| dcterms.event.date | 2019-03-18 | |
| dcterms.event.place | Detroit | |
| dcterms.source.collection | ANTEC® 2019 - Proceedings of the Technical Conference & Exhibition, Detroit, MI, March 18-21, 2019 | eng |
| dcterms.source.editor | Society of Plastics Engineers | |
| dcterms.source.identifier | isbn:978-0-9753707-2-8 | |
| dcterms.source.identifier | eisbn:978-1-59124-974-0 | |
| kup.iskup | false | |
| dcterms.event | ANTEC 2019 |
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