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Distribution Of Vapor Density Affected By Cathode Spot Area Of Vacuum Arc

机译：真空电弧阴极点面积对蒸汽密度分布的影响

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摘要

Establishment of surface treatment technology using vacuum arc is expected in order to form a recycling-oriented society. Thus, it is required for elucidation of the quantity of vapor exerted by the area of vacuum arc cathode spot. However, it is difficult to elucidate this phenomenon with the experiment because the vacuum arc cathode spot is high temperature and high speed. Therefore, it is expected to elucidate this phenomenon with simulation. In this paper, the distribution of vapor density affected by the area of vacuum arc cathode spot is elucidated with 3D electromagnetic thermal fluid simulation. As a result, the quantity of metal vapor decreases with increasing the area of cathode spot. Because the current density decreases with increasing the area of cathode spot. Thus, Joule heat generation in the space decreases, and heat input to the cathode decreases. Therefore, the quantity of metal vapor decreases with increasing the area of cathode spot. In the future, the asymmetric distribution of vapor density is analyzed in order to control the cathode spot with the transverse magnetic field.
机译：期望建立使用真空电弧的表面处理技术，以形成循环型社会。因此，需要阐明由真空电弧阴极点区域所施加的蒸气量。然而，由于真空电弧阴极点是高温且高速的，因此难以用实验来阐明该现象。因此，期望通过仿真来阐明该现象。本文通过3D电磁热流体模拟来阐明受真空电弧阴极斑点面积影响的蒸汽密度分布。结果，金属蒸气的量随着阴极斑点面积的增加而减少。因为电流密度随着阴极斑点面积的增加而降低。因此，空间中的焦耳热产生减少，并且输入到阴极的热减少。因此，金属蒸气的量随着阴极斑点面积的增加而减少。将来，将分析蒸气密度的不对称分布，以便利用横向磁场控制阴极点。

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