CAJ | 학술논문

金属丝在高压电场中通过丝端部与电极之间的气体放电导入电流，完成电热爆，沉积在丝段上的比能量对电爆制粉和喷涂有着重要影响。为系统认识金属丝段电爆过程中初始充电电压、丝长和直径与沉积比能量之间的关系，通过建立含气隙的丝段爆炸过程的电路模型，进行一系列电热爆数值模拟，得到了适合实际电热爆过程的最佳气隙长度。在电极间距不变的条件下，对于不同初始充电电压、不同长度和直径的金属丝进行电热爆数值模拟和实际电热爆实验的研究结果表明：初始充电电压越高，沉积在丝上的比能量越高；减小金属丝的长度和直径，可提高金属丝上沉积的比能量。
금속사재고압전장중통과사단부여전겁지간적기체방전도입전류，완성전열폭，침적재사단상적비능량대전폭제분화분도유착중요영향。위계통인식금속사단전폭과정중초시충전전압、사장화직경여침적비능량지간적관계，통과건립함기극적사단폭작과정적전로모형，진행일계렬전열폭수치모의，득도료괄합실제전열폭과정적최가기극장도。재전겁간거불변적조건하，대우불동초시충전전압、불동장도화직경적금속사진행전열폭수치모의화실제전열폭실험적연구결과표명：초시충전전압월고，침적재사상적비능량월고；감소금속사적장도화직경，가제고금속사상침적적비능량。
When segmented wire falls into the high voltage field, electrical explosion occurs through the gas discharge between the wire＇s ends and the electrodes. The massic energy deposited of the metal wire has an effect on the spraying and powder. In order to understand their relation between the variations of the initial charge voltage, length and diameter of the segmented wire and massic energy completely, the numerical simulation of electrical ex- plosion was tested by establishing the air-gap of the segmented wire with the circuit model of explosion. The opti mum air-gap that was suitable for simulating the actual electrical explosion was obtained. For different initial charge voltage, different lengths and diameters of wire were simulated and tested under the same electrode spacing. Results show that, as the initial charge voltage increases, the massic energy increases. As the length and diameter of wire decrease, the massic energy deposited of the metal wire can increase.