Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires
Annealing is a critical step during the wire drawing of copper to produce wires with the required ductility and conductivity for electrical applications. In this investigation, the characteristics of commercial annealers for wire drawing of electrolytically refined tough-pitch copper (Cu-ETP) and ox...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-12-01
|
| Series: | Results in Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590048X20300881 |
| _version_ | 1818448411259568128 |
|---|---|
| author | C. Banganayi K. Nyembwe K. Mageza |
| author_facet | C. Banganayi K. Nyembwe K. Mageza |
| author_sort | C. Banganayi |
| collection | DOAJ |
| description | Annealing is a critical step during the wire drawing of copper to produce wires with the required ductility and conductivity for electrical applications. In this investigation, the characteristics of commercial annealers for wire drawing of electrolytically refined tough-pitch copper (Cu-ETP) and oxygen-free upcast copper (Cu-OF) wires were assessed through annealer curves with respect to applied voltage and resulting percentage elongation of final products. Experiments were carried out on three M315 Niehoff machines of varying speeds used for medium wire drawing from 2.2 mm diameter to 0.66 mm and 0.53 mm diameters. The results show similarities and differences between annealer curve characteristics of wire drawing machines regarding the required voltage for minimum and maximum elongation of wires without oxidation depending on the type of copper raw material used. In particular, the minimum 18% required elongation of wires was achieved with the same applied voltage irrespective of the machine speed and type of copper. In addition, Cu-OF reached higher maximum percentage elongation without oxidation of the wire compared to Cu-ETP. |
| first_indexed | 2024-12-14T20:19:05Z |
| format | Article |
| id | doaj.art-112fb7ac79f54fe7a3eca6fe6de57867 |
| institution | Directory Open Access Journal |
| issn | 2590-048X |
| language | English |
| last_indexed | 2024-12-14T20:19:05Z |
| publishDate | 2020-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Materials |
| spelling | doaj.art-112fb7ac79f54fe7a3eca6fe6de578672022-12-21T22:48:47ZengElsevierResults in Materials2590-048X2020-12-018100146Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wiresC. Banganayi0K. Nyembwe1K. Mageza2University of Johannesburg, Department of Metallurgy Johannesburg, South Africa; Corresponding author.University of Johannesburg, Department of Metallurgy Johannesburg, South AfricaUniversity of Johannesburg, Metal Casting Technology Station (MCTS) Johannesburg, South AfricaAnnealing is a critical step during the wire drawing of copper to produce wires with the required ductility and conductivity for electrical applications. In this investigation, the characteristics of commercial annealers for wire drawing of electrolytically refined tough-pitch copper (Cu-ETP) and oxygen-free upcast copper (Cu-OF) wires were assessed through annealer curves with respect to applied voltage and resulting percentage elongation of final products. Experiments were carried out on three M315 Niehoff machines of varying speeds used for medium wire drawing from 2.2 mm diameter to 0.66 mm and 0.53 mm diameters. The results show similarities and differences between annealer curve characteristics of wire drawing machines regarding the required voltage for minimum and maximum elongation of wires without oxidation depending on the type of copper raw material used. In particular, the minimum 18% required elongation of wires was achieved with the same applied voltage irrespective of the machine speed and type of copper. In addition, Cu-OF reached higher maximum percentage elongation without oxidation of the wire compared to Cu-ETP.http://www.sciencedirect.com/science/article/pii/S2590048X20300881Cu-OFCu-ETPPercentage elongationResistance annealingAnnealer curveWire drawing |
| spellingShingle | C. Banganayi K. Nyembwe K. Mageza Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires Results in Materials Cu-OF Cu-ETP Percentage elongation Resistance annealing Annealer curve Wire drawing |
| title | Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires |
| title_full | Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires |
| title_fullStr | Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires |
| title_full_unstemmed | Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires |
| title_short | Annealer curve characteristics of electrolytically refined tough pitch copper (Cu-ETP) and oxygen free up-cast copper (Cu-OF) for electrical cable wires |
| title_sort | annealer curve characteristics of electrolytically refined tough pitch copper cu etp and oxygen free up cast copper cu of for electrical cable wires |
| topic | Cu-OF Cu-ETP Percentage elongation Resistance annealing Annealer curve Wire drawing |
| url | http://www.sciencedirect.com/science/article/pii/S2590048X20300881 |
| work_keys_str_mv | AT cbanganayi annealercurvecharacteristicsofelectrolyticallyrefinedtoughpitchcoppercuetpandoxygenfreeupcastcoppercuofforelectricalcablewires AT knyembwe annealercurvecharacteristicsofelectrolyticallyrefinedtoughpitchcoppercuetpandoxygenfreeupcastcoppercuofforelectricalcablewires AT kmageza annealercurvecharacteristicsofelectrolyticallyrefinedtoughpitchcoppercuetpandoxygenfreeupcastcoppercuofforelectricalcablewires |