Correlation between Magnetic Properties and Chemical Composition of Non-Oriented Electrical Steels Cut through Different Technologies
| Autor: | Iosif Vasile Nemoianu, Gheorghe Paltanea, Radu Stefanoiu, Horia Gavrila, Veronica Manescu |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Electric motor
Materials science energy loss separation Alloy Mechanical engineering 02 engineering and technology engineering.material lcsh:Technology 01 natural sciences cutting technology Article 0103 physical sciences Thermal non-oriented electrical steels chemical composition General Materials Science lcsh:Microscopy Chemical composition lcsh:QC120-168.85 010302 applied physics grain size magnetic permeability lcsh:QH201-278.5 lcsh:T 021001 nanoscience & nanotechnology Grain size lcsh:TA1-2040 Magnet engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology lcsh:TK1-9971 Energy (signal processing) soft magnetic materials Efficient energy use |
| Zdroj: | Materials Materials, Vol 13, Iss 6, p 1455 (2020) Volume 13 Issue 6 |
| ISSN: | 1996-1944 |
| Popis: | Due to worldwide regulations on electric motor manufacturing, the energy efficiency of these devices has to be constantly improved. A solution may reside in the fact that high quality materials and adequate cutting technologies should be carefully chosen. The magnetic properties of non-oriented electrical steels are affected by the cutting methods, through induced plastic, and thermal stresses. There is also an important correlation between chemical composition and different magnetic properties. In this paper, we analyze different industrial grades of non-oriented electrical steels, used in electrical machines&rsquo core manufacturing as M800-65A, M800-50A, M400-65A, M400-50A, M300-35A, and NO20. The influence of the cutting methods on the normal magnetization curve, total energy loss and its components, and relative magnetic permeability is investigated in alternating currents using a laboratory single sheet tester. The chemical composition and grain size influence are analyzed and correlated with the magnetic properties. Special attention is devoted to the influence of the increased cutting perimeter on the energy losses and to the way it relates to each chemical alloy constituent. The final decision in what concerns the choice of the proper magnetic material and the specific cutting technology for the motor magnetic cores is imposed by the desired efficiency class and the specific industrial applications. |
| Databáze: | OpenAIRE |
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