2 重電極によるプラズマ火炎

概要

論文の詳細を見る
This paper deals with the generation of plasma flame by a coaxial tubular electrode. The coaxial tubular electrode consists of outer and inner tubes, of which cross-sectional areas are nearly the same. The inner tubular electrode is coaxially inserted into the outer tubular electrode with spacing of the insulator as shown in Fig. 2. Some experiments about the generation of plasme flame by the electrode and its application were performed. The experimental results are as follows. 1) The coaxial tubular electrode made of carbon was able to maintain stably the plasma flame in water as well as in atmosphere, in spite of the flow of gas. And the dissipation of electrode was a little, so that this type electrode became a kind of non-consumable plasma torch. 2) When the electrode was made of mild steel, the plasma flame could be easily maintained both in water and in atmosphere, by using of ilumenite and manganese dioxide as the chief ingredients of insulator between two tubular electrodes. Besides, it was possible to ignite the plasma flame in water by the mixing of small amount of electrolyte such as sodium chloride. 3) Under the condition of oxygen flow and mild steel electrode, the plasma flame was ejected very stably in water and in atmosphere. Moreover, the mild steel was oxidized and burned, so that the heat of plasma flame was stronger due to the addition of combustion heat. 4) A concrete board could be easily pierced by the plasma flame in atmosphere, in water or in salt water. In this case, the mild steel electrode and the oxygen flow were used for the generation of plasma flame. Thus the coaxial tubular electrode may be called very useful for applications to the field of ocean development.
社団法人溶接学会の論文
1971-11-25

2 重電極によるプラズマ火炎

スポンサーリンク

概要

著者

関連論文

スポンサーリンク