A. V. Grinenko, A. V. Chumaevskii, A. V. Nikolaeva, V. R. Utyaganova, D. A. Gurianov, E. A. Kolubaev
{"title":"Plasma torch nozzle wear after reverse-polarity cutting of aluminum alloys","authors":"A. V. Grinenko, A. V. Chumaevskii, A. V. Nikolaeva, V. R. Utyaganova, D. A. Gurianov, E. A. Kolubaev","doi":"10.1007/s11182-024-03352-5","DOIUrl":null,"url":null,"abstract":"<div><p>The paper studies the layer degradation on the nozzle and electrode surface of plasma torches operating at a current with applied reverse polarity. AA5056 and AA2024 aluminum alloy sheets are used for plasma cutting. It is demonstrated that the surface of the nozzle channel and discharge chamber of the plasma torch are covered with the aluminum layer, that can be attributed to its evaporation in the cutting zone. Copper oxides and insignificant aluminum traces are observed on the surface of the discharge chamber and electrode channel. These copper oxides can almost completely block the water injection in the channel making it unusable.</p></div>","PeriodicalId":770,"journal":{"name":"Russian Physics Journal","volume":"67 11","pages":"2100 - 2105"},"PeriodicalIF":0.4000,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Physics Journal","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s11182-024-03352-5","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The paper studies the layer degradation on the nozzle and electrode surface of plasma torches operating at a current with applied reverse polarity. AA5056 and AA2024 aluminum alloy sheets are used for plasma cutting. It is demonstrated that the surface of the nozzle channel and discharge chamber of the plasma torch are covered with the aluminum layer, that can be attributed to its evaporation in the cutting zone. Copper oxides and insignificant aluminum traces are observed on the surface of the discharge chamber and electrode channel. These copper oxides can almost completely block the water injection in the channel making it unusable.
期刊介绍:
Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.