| BU Zhen-yu,ZHAO Xiao-qin,GUO Xiang-dong,YANG Ming-qi,XUE Yun,WEI Xiao-dong,AN Yu-long,ZHOU Hui-di.Electromotor Bearing Protection Measures and Research Status of Al2O3 Ceramic Coating[J],50(5):51-59 |
| Electromotor Bearing Protection Measures and Research Status of Al2O3 Ceramic Coating |
| Received:January 25, 2021 Revised:March 23, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.05.004 |
| KeyWord:electric corrosion electrically insulated bearing Al2O3 coating microstructure spraying process coating properties |
| Author | Institution |
| BU Zhen-yu |
Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou , China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing , China |
| ZHAO Xiao-qin |
Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou , China |
| GUO Xiang-dong |
Luoyang Bearing Research Institute Co.Ltd, Luoyang , China |
| YANG Ming-qi |
Luoyang Bearing Research Institute Co.Ltd, Luoyang , China |
| XUE Yun |
Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou , China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing , China |
| WEI Xiao-dong |
Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou , China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing , China |
| AN Yu-long |
Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou , China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing , China |
| ZHOU Hui-di |
Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou , China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| This paper discusses the main protective measures to avoid electrical corrosion failure of electromotor bearings, including the installation of grounded carbon brushes to channel the shaft current, and using insulated bearings to cut off the shaft current, and the advantages and disadvantages of them are explained respectively. For insulated bearings, the relationship among the thermal spraying process (powder particle size, spraying parameters) the coating structure (surface morphology and microstructure) and the coating properties of the Al2O3 ceramic coating are analyzed, and the methods of modifying the coating performance by doping other metal cation oxides or nanostructured powders are introduced. On this basis, the difficulties existing in the preparation technology of Al2O3 ceramic coating for insulated bearings are analyzed, and the main problems are summarized. Finally, the development trend of Al2O3 ceramic coating preparation technology for insulated bearings is prospected. |
| Close |
|
|
|