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| Development of Plasma Assisted Milling and Its Vibration Platform Testing |
| Received:August 13, 2018 Revised:November 25, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.11.0017 |
| KeyWord:plasma ball mill mechanical vibration performance activation energy innovation entrepreneurship |
| Author | Institution |
| LU Zhong-chen |
a. School of Mechanical and Automotive Engineering, South China University of Technology Guangzhou , China |
| LIN Cheng |
a. School of Mechanical and Automotive Engineering, South China University of Technology Guangzhou , China |
| GAO Zhi-qiang |
a. School of Mechanical and Automotive Engineering, South China University of Technology Guangzhou , China |
| TU Jia-liang |
b. School of Materials Science and Engineering, South China University of Technology Guangzhou , China |
| WANG Wei |
b. School of Materials Science and Engineering, South China University of Technology Guangzhou , China |
| SONG Kai-qiang |
b. School of Materials Science and Engineering, South China University of Technology Guangzhou , China |
| ZENG Mei-qin |
b. School of Materials Science and Engineering, South China University of Technology Guangzhou , China |
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| Abstract: |
| Objective To achieve a large area dielectric barrier discharge plasma in ball mill chamber under atmospheric pressure, and develop commercial plasma ball mill. Methods The vibration sensors were used to test the amplitude (peak peak value) and acceleration (effective value) of the platform under the conditions of different springs and weights of platform to de-termine the optimal configuration and the mechanical vibration parameters. Results When the amplitude of the vibration platform was close to the inner diameter of the ball milling chamber, a combination of the high amplitude and high speed ball could significantly reduce the gas discharge distance, which obtained a large area dielectric barrier discharge plasma in ball mill chamber under atmospheric pressure. The vibration platform of the designed plasma assisted vibration ball mill with single cylinder structure could choose two groups of springs, i.e.φ7 mm andφ8 mm. Different exciting blocks could be selected according to the different weights of the vibration platform. Under this condition, the peak amplitude of the platform could reach or approach the inner diameter of the ball mill tank at a speed of more than 30 Hz, and the platform had an acceleration effective value of more than 10g. Conclusion This test combines mechanical vibration science, high voltage insulation discharge and material processing technology. The synergistic effect of mechanical energy and plasma energy is produced by the developed plasma ball mill, which can effectively promote the powder activation, decrease the activation energy of compound synthesis reaction, and thus significantly improve the properties of the prepared materials. |
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