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| Influences of Metallic Flyer on Initiation Energy of EFI |
| Received:June 14, 2019 Revised:July 12, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.12.011 |
| KeyWord:EFI metallic flyer insulating treatment PDV flyer velocity |
| Author | Institution |
| WANG Yin |
National Key Laboratory of Applied Physics and Chemistry, Shaanxi Applied Physics and Chemistry Research Institute, Xi′an , China |
| LUAN Qian-jin |
Aviation Military Respective Office of Army Equipment Department in Xi’an , China |
| TONG Hong-hai |
National Key Laboratory of Applied Physics and Chemistry, Shaanxi Applied Physics and Chemistry Research Institute, Xi′an , China |
| ZHOU Mi |
National Key Laboratory of Applied Physics and Chemistry, Shaanxi Applied Physics and Chemistry Research Institute, Xi′an , China |
| QIN Guo-sheng |
National Key Laboratory of Applied Physics and Chemistry, Shaanxi Applied Physics and Chemistry Research Institute, Xi′an , China |
| LI Jiao |
National Key Laboratory of Applied Physics and Chemistry, Shaanxi Applied Physics and Chemistry Research Institute, Xi′an , China |
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| Abstract: |
| Objective To reduce the ignition energy of EFI, and study the application of non-metallic flyer and metallic flyer in EFI. Methods With the metallic flyer matching method, Al and Ti were selected to design and prepare metallic flyer. The Al-PT and Ti-PI metallic flyer and metallic flyer - explosive bridge foil integrated energy conversion element were obtained. Results In the case of no additional insulation treatment for metallic flyer, EFI containing metallic flyer were not ignited. After insulation treatment of metallic flyer, EFI containing metallic flyer were reliably ignited. The results of flyer velocity test with PDV showed that when the charging voltage was 1200V, the speed of Ti-PI metallic flyer was 3604m/s, the speed of material pieces of flyer for bridge was 2986m/s. Conclusion Under the same ignition voltage, the speed of metal flyer with metal flyer and explosive bridge foil integrated energy conversion element is significantly smaller than that of metal flyer with thicker insulation layer. |
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