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| 摘要: |
| 分析了现在常用的４０～１００ｋｗ等离子体喷涂设备的特征，从提高等离子喷涂效率和节能出发，开发了一种内部粉末供给，电能消耗为２－１３ｋｗ的Ｐｌａｓｍａ－ＬＥ１５等离子体喷涂系统，利用该系统对陶瓷，金属碳化物和金属合金粉末进行了喷涂实验，其中金属碳化物和金属合金粉末的喷涂沉积效率８０％以上，对几种喷涂组织进行了测试和调查，用该系统喷涂得到的组织性能高于或者等于通常大气条件下外部送粉式４０ＫＷ等离子喷涂 |
| 关键词: 等离子喷涂 喷涂组织 热喷涂 等离子喷涂设备 |
| DOI： |
| 分类号:TG174.442 |
| 基金项目: |
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| Development of Low Power Supply and High Efficiency Plasma Thermal Spray System and Microstructure of Coatings |
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Gao Yang
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| Abstract: |
| In this report, the characteristics of conventional 40~100kW APS were discussed. In order to improve the efficiency of the plasma spray and save electrical energy, a Plasma-LE15 spray system has been developed with interior powder supply and 2-13kW power supply consumption. The powder of Cr_2O_3, Al_2O_3-2.STiO_2, 84WC-CoCr and .MCrAlY are sprayed by this system. The deposit ratio for both of 84WC-CoCr and MCrAlY powder reached 80%. The microstructure, hardness and porosity were investigated. Results indicate that the property of the coatings by Plasma-LE15 are higher than or equal to the conventional 40kW plasma coatings, of which powder was supplied from the outside of nozzle. Furthermore, this system can easyly be moved to move to the work field and set in the laboratory. |
| Key words: Plasma spray, Powder, Coating, Thermal spray, |
