英语翻译For a qualitative analysis of a transferred arc plasma p

英语翻译
For a qualitative analysis of a transferred arc plasma produced by a plasma torch ,the wall-stabilized arc theory can be applied to the characteristic of voltage gradient vs.current normalized or scaled with the photographically measured optical emission radius under a current of 50 to 300 A,the apparent plasma length La between the nozzle surface of the torch front and the opposite anode 1 to 9 cm and the gasflow-rate of argon at 20 I/min (given as normalized to 0.1 MPa and OT).The normalized voltage gradient vs.current of the torch plasma generated by a plasma torch is consistent with that found in wall-stabilized arcs which have been analyzed concerning the heat transfer.
The plasma torch has normally a water-cooled cathode tip made of tungsten (W) with thorium etc.as additive,which is covered by a watercooled nozzle.The current conductors should be designed carefully in regards the current capability of curved conductors
Figure 1.Characteristic of voltage gradient us.current of stabilized arc plasmas normalized by plasma radius.
The torch plasma experiment,in which the plasma column was stabilized
with an axially cylindrical gas flow,confirmed that the wall-stabilized theory as analysis tool possibly was applicable to its characteristic
of voltage gradient (E) us.current (I),as shown in Figure 1,normalized to the photo radius R,which was photographically determined from the film as shown in Figure 2.A general E-I curve with E Im is a function of the arc radius R because E decreases with in-
creasing R.However,the E-I curve normalized to R as an ER-I/R curve can be confined theoretically into only one single curve,which is
not affected by the arc radius,because R = R,[6]; i.e.the E-I curves
have different curves for every arc radius.Therefore it is very confusing
to compare the direct E-I curves with different arc radii,and thus
we introduced the normalized ones.
The central temperature of the arc plasma is calculated as shown in
Figure 3.It increases with increment of the current and decrement of
the radius [9].Also,the mechanism of heat transfer to an anode was
investigated experimentally in arc plasma heating [lo].Furthermore,
the radiation power 4 emitted from the arc plasma increases with the
current as follows:40~I" ; n = 2( 1- m) as shownin Figure 4 [ll-151,
which is a guide to melt wastes.

有关的转移电弧等离子体所产生的等离子炬的定性分析,壁稳定电弧理论可以应用到的电压梯度的特性对比电流标准化或缩放与照相测量的光学发射半径下的电流为50至300甲,焊枪前端的喷嘴表面和相反的负极1至9厘米和在20升/分钟（给出归一化至0.1 MPa和OT）的氩气的气体流量速率的表观等离子体之间的长度La的归一化的电压梯度. vs电流通过等离子体炬焊枪产生的等离子体与壁稳定弧已关于传热分析中发现的一致
的等离子体炬通常是水冷式的阴极尖端与钍的钨（W）制成的等作为添加剂,其上覆盖由一个水冷的喷嘴.电流导体应精心设计,在弯曲导线
图1 就目前的能力.电压梯度我们的特征.电流通过等离子体半径归一稳定的电弧等离子体
火炬等离子体实验,其中稳定的等离子体柱
的轴向圆筒状的气体流,确认,作为分析工具的壁稳定理论可能是适用的其特性
的电压梯度（E ）.的电流（I）,如在图1中所示的,归一化到照片半径R,它从膜照相确定,如在图2中示出.甲一般EI曲线E 0〜Im为的圆弧半径R的函数,因为E随在
折痕R.然而,作为一个ER-I / R曲线归一化至R的EI曲线可以被限制成只有一个单一的理论上曲线,这是
没有影响的圆弧半径,因为R = R,[6],即在EI曲线
有圆弧半径为每一个不同的曲线.因此非常混乱
比较直接EI曲线具有不同弧半径,从而
我们介绍了归一化的,被计算为在图3 所示的电弧等离子体的中心温度.它增加的电流的增量和减量的半径[9].此外,在电弧等离子体加热的热传递的机制的阳极实验研究[10].此外,从增加与电流的电弧等离子体发射的辐射功率4 如下：40〜I“,n = 2的（1 - m）作为shownin图4的[LL-151,这是一个指南熔体废物.
以上就是谷歌翻译过来的.