Computational results show that the axial gas flow play the main role on the arc stability.
计算结果表明,轴向气流对电弧稳定性起重要作用。
However the welding arc may be extincted and ignited periodically. So the arc stability becomes the key.
该电源电弧容易引起周期性的熄灭和引燃,因此如何保证电弧稳定燃烧成为关键。
Also, the distribution of the oxide has the considerable impact on arc starting as well as arc stability.
氧化物的分布对起弧、电弧稳定性等均有重要影响。
IGBT power modules, 18khz inverter frequency, fast response time, high arc stability, almost spatter-free welding.
采用IGBT模块,逆变频率达18khz,动态响应速度快、稳定性能好、。
Quality square wave power supply, current zero crossing time is short, arc stability, arc without high frequency stability.
优质方波电源,电流过零时间短,电弧稳定,无需高频稳弧。
The effect of Harc and liquid bridge coexist"of low hydrogen type covered electrode onthe arc stability and spatter is pointed out."
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。
Experimental results show that the control system has fast dynamic response and improves arc stability effectively with the waveform control.
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。
The status of realization of variable polarity current waveform, arc stability, cathodic cleaning mechanism and keyhole detection is introduced in this paper.
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 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.
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 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。
It analyses the plasma electrical arc characteristic from the thermal and electrical characteristic and flame flow rate and the burning stability.
从热特性、电特性、焰流速度和燃烧稳定性的角度分析了发生器中等离子弧的特征。
The formula of micro arc oxidation technology needs to be improved for its electrolyte stability.
微弧氧化技术由于电解液的稳定性而需要进行配方改进。
It is shown that the water constriction is effective on improving the energy density and stability of the arc, so the cutting quality can be improved also.
结果表明,施加水再压缩对提高等离子弧柱的能量密度和稳定性、进而提高陶瓷件切割质量非常有效。
The stability of the AC plasma arc was analyzed on the base of the experiment phenomena in theory .
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。
This scheme not only eliminates the interference between main arc and pilot arc, but also reduces the deterioration of the tungsten electrode and improves the stability of welding process.
该方案不仅克服了传统方案存在的主维弧干涉现象,而且可大大降低钨电极的烧损,提高焊接过程的稳定性。
The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.
其电弧稳定与否,主要取决于电流过零瞬间的电弧空间电离度、 电极发射电子能力及再引燃电压的上升速度。
The formulas used for checking the integral stability of derrick and the method and criterion of analysing the problems arc also presented here.
文章对井架总体稳定校核所用的计算公式及分析问题的方法和准则也作了介绍。
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.
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。
In the paper, a SFRC (Steel Fibre Reinforced Concrete) cylindrical thin shell is designed and fabricated and its stability behaviors arc tested with a specially-made loading lever-system.
本文设计创作了一个钢纤维混凝土圆柱薄壳,采用一套特制的杠杆加载体系对其稳定性能进行了测试。
The erasable optical disk with high recording density, high stability, high data transfer rate, high carrier-noise ratio and low error rate arc the main points in the research and development.
当前的研究与开发的重点是具有高记录密度,数据传输速率快、稳定性好、载噪比大和误码率低的可擦型光盘存储材料。
A methodology of most dangerous sliding surface search and slope stability analysis is proposed by combining mixed genetic-simulated annealing algorithms with Sweden arc method.
利用遗传模拟退火算法结合瑞典圆弧法,寻找最危险滑裂面进行边坡稳定分析。
Metal transfer frequency are usually taken as the criteria to evaluate the process stability of short-circuiting arc welding.
短路过渡焊接时,熔滴过渡频率通常被作为评价焊接过程稳定性及焊接质量的重要指标。
The stability of the AC MIG arc is closely related to the current before the polarity reversing point and voltage after that point.
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 optimum parameters arc picked up which will ensure the single-axle bogie for better comprehensive performance including lateral stability, riding quality and negotiation.
首先,对初选的悬挂参数进行了分析,优选出使车辆的横向稳定性、平稳性及曲线通过综合性能较好的参数组合;
The electric network voltage wave can be compensated automatically. The welding electric arc is stability.
具备电网电压波动自动补偿功能,焊接电流稳定。
The stability of arc voltage is realized by adjustment of wire feeding speed in constant wire feeding system of SAW.
在埋弧焊接的变速送丝系统中,其电弧电压的稳定是依靠调节送丝速度实现的。
The stability of arc voltage may be improved by H-bridge driving circuit used for wire feeding system.
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 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.
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。
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.
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.
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。
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