计算结果表明,轴向气流对电弧稳定性起重要作用。
Computational results show that the axial gas flow play the main role on the arc stability.
氧化物的分布对起弧、电弧稳定性等均有重要影响。
Also, the distribution of the oxide has the considerable impact on arc starting as well as arc stability.
指出低氢型焊条的“弧桥并存”现象对电弧稳定性和飞溅的影响。
The effect of Harc and liquid bridge coexist"of low hydrogen type covered electrode onthe arc stability and spatter is pointed out."
指出交流MIG电弧稳定性与换向前的电流、换向后的电压有密切关系。
The stability of the AC MIG arc is closely related to the current before the polarity reversing point and voltage after that point.
实验结果表明,该控制系统动态响应快速,配合波形控制有效地提高了电弧稳定性。
Experimental results show that the control system has fast dynamic response and improves arc stability effectively with the waveform control.
双重逆变高速控制电流波形,电弧稳定性极高,高品质矩形交流波,降低焊接成本,提高焊缝质量。
High speed dual inverter to control the current wave form, very high arc stableability, high quality AC square wave, decrease the welding cost and increase the weld quality.
介绍了国内外在实现变极性电流波形、电弧稳定性、阴极清理机理、小孔信号检测等方面的研究现状。
The status of realization of variable polarity current waveform, arc stability, cathodic cleaning mechanism and keyhole detection is introduced in this paper.
本文建立了开关式TIG焊电源的离散时域数学模型,分析了电弧引燃过程、引弧性能、电流波形特点和电弧稳定性。
The discrete time mathematical model of a switched TIG welding power source is established. The arc ignition process, its property, current wave form and arc stability are analysed.
本文采用与时间有关的线性微扰理论,分别讨论了旋转气流、纵向气流的作用,以及它们共同的作用下电弧螺旋不稳定性的特征。
The linear time perturbation theory is used in this paper, the effects of rotary flow, axial flow and both of them to the arc stability are discussed respectively.
此外,还根据实验现象从理论上分析了交流等离子电弧的稳定性。
The stability of the AC plasma arc was analyzed on the base of the experiment phenomena in theory .
到目前为止,关于激光-电弧复合热源焊接的研究主要集中在应用方面,而涉及到电弧特性及过程稳定性等基础理论,仍有许多问题亟待解决。
By far, research about laser-arc hybrid welding is mostly concentrated on the application and there is still much problem to solve come down to the arc properties and the stability of welding process.
这大大减小了电机的惯性,将其用于送丝系统将有望提高电弧电压的稳定性。
The stability of arc voltage may be improved by H-bridge driving circuit used for wire feeding system.
因此电弧电压的稳定性取决于送丝速度调节的快慢。
Thus the stability of arc voltage is depended on that wire feeding speed is fast or slow.
在静电磁流体方程基础上,提出了柱状放电电弧等离子体磁螺旋不稳定性的一种新的线性分析方法。
A new linear analysis for magnetic helical instabilities of arc discharges in a cylindrical plasma is developed based on a set of electrostatic magnetohydrodynamic equations.
在引弧过程中,有明显的效果,提高了电弧的稳定性,从而使功率因数是先进的,漏电流减少。
In arc ignition process, it has apparent effect and improves the stability of arc, so that power factor is advanced and current drain is reduced.
讨论了具有抛物线形电流分布的电弧等离子体柱在磁场中的不稳定性问题。
The helical instability problem of an arc plasma column with a parabolic current profile in a magnetic field is discussed.
简述了短路电弧焊接的物理过程及过程稳定性概念,介绍了有关短路焊接过程稳定性各种评价方法及相应准则,最后对其进行了必要的讨论。
This paper interprets the short-circuit arc welding process and the process stability. The evaluation methods and criteria for the short-circuit arc welding process are introduced and discussed.
为了分析短路过渡电弧的焊接过程和探讨电弧能量对焊接稳定性的影响,设计了短路过渡电弧电参数检测系统。
A arc parameter-measuring system was developed to analyze the process of short-circuiting arc welding and the effect of arc energy on the welding stability.
根据液体电弧放电模型可知,电弧的稳定性和碳粒子运动的定向性对纳米结构的生成过程有重要影响。
As shown in the physical model, the stability of arc plasma and the directionality of carbon particles played important roles in the formation of carbon nano-structures.
因此控制焊接电弧弧长的稳定性,对保证焊接产品的质量和提高劳动生产率都有重要的意义。
Therefore, the control of the stability of the arc length is meaningful for the welding quality and productivity.
试验中发现,采用模糊专家控制系统对焊接过程进行闭环控制时,焊丝干伸长及电弧弧长对焊接过程稳定性和焊缝成型有重要影响。
The experiment show that wire extension and arc length can influence the stabilization of welding process and the welding-seam modeling when using fuzzy-expert system .
由于喷涂过程中电压的波动范围不大,而电流的波动范围较大,因此喷涂电流的波动对电弧喷涂过程的稳定性及涂层质量的影响更为突出。
The fluctuation of current is larger than that of voltage in arc spray process. So the fluctuation of current is of importance to the quality of coatings and the stability of arc spray process.
给出了具有抛物形电导率分布的电弧螺旋不稳定性的一个简化线性分析,得到了显式解析解。
A simplified linear analysis of the helical instability of arc plasmas is given. Explicit analytic results are obtained.
给出了具有抛物形电导率分布的电弧螺旋不稳定性的一个简化线性分析,得到了显式解析解。
A simplified linear analysis of the helical instability of arc plasmas is given. Explicit analytic results are obtained.
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