查询词典 electric arc process

In this model the fuse is simulated by a time variable nonlinear resistor combined with a switch, the nonlinear resistor represented the fore-arc resistor during fusing process, the switch is used to control the cut off time, and both of the above is calculated by the ANSYS. Compared the real assay curve and the simulation wave we found that: the calculated overvoltage amplitude value is accuracy with error less than 5%.But the wave is more or less different especially the part of the post-arc.

在电磁暂态计算程序——EMTP/ATP中，根据实际情况建立了熔断器开断试验电路的仿真模型，其中熔断器模型采用一个时间变量非线性电阻和开关的组合来代替，前者代表熔断器熔断过程的弧前电阻，后者控制开断时间，两者均由ANSYS计算得到。

In order to make clear the phenomenon of current zero in the arc-quenching chamber of deion plates, the process of dielectric recovery and reignition of short arc between iron plates is investigated, and then the dielectric recovery strengths of various chambers are measured and compared. The different characteristics near current zero in the deion plate chambers are also analyzed based on experiments in the paper.

为弄清栅片灭弧室内电弧电流的过零过程，专门研究了不同条件下栅片间低压短弧的介质强度恢复过程和电弧重燃过程，然后测量了多纵缝和栅片灭弧室的介质恢复强度，对比了它们的熄弧性能，在试验的基础上，分析了栅片灭弧室中电弧电流的过零特征。

It was found recently that magnetic arc blow, inherently happens with such kind of welding process, particularly in deep groove welding of the first layer, can produce various kinds of weld defects, interfere the welding operation and make the arc length control system to work unproperly.

近年来在MIG焊研究中发现电弧磁偏吹现象严重，特别是坡口对接封底焊，会造成多种焊缝缺陷，甚至无法进行焊接，还会造成弧长闭环控制系统混乱。

By experiment of arc movement process, the viewpoint that arc is split or unsplit into series arcs by deion plates is improved.

通过对电弧在不同结构灭弧室中运动情况的试验分析，提出了电弧能否分成短弧进入栅片的理论观点。

In this thesis, the load current arc conditioning effect on the postarc restrikes has been investigated by using a synthetic circuit, experiments show that the restrikes can be decreased by using arc conditioning process with polarity effect.

本文在合成回路上研究了负载电流电弧的老炼作用，发现负载电流电弧老炼可以明显地降低弧后延时重击穿率，这种老炼具有极性效应。

The phenomena of arc discharge in the process of micro arc oxidation on magnesium alloy was investigated.

研究AZ31镁合金微弧氧化过程中不同控制参数对膜性能的影响。

Moreover, arc characteristics on low voltage switches are analyzed, the physical process in the arc region is explained.

并且对低压开关电器的电弧特性进行了分析，阐述了电弧内部区域的物理过程。

MATLAB is a powerful tool for improving performances of arc welding inverter, and it is a new method for quantitative analysis in the dynamic process of nonlinear arc welding system.

从而为研制工艺适应性优良的新型弧焊逆变电源和定量分析非线性弧焊系统的动态过程提供了一个强有力的工具。

MATLAB is a powerful tool for improving performances of arc welding inverter, and it is a new method for quantitative analysis in the dynamic process of nonlinear arc welding system.

因此，有必要探寻新的有效工具，对包含弧焊逆变器的短路过渡型CO2电弧焊系统进行定量动态研究。

These achievements provided proofs for earlier guesses of this phenomena. Furthermore, they also provide theoretical and experimental supports for the application of arc spectrum signal in metal transfer measurement, the development of new welding arc spectrum sensors and the establishment of new welding process controlling methods.

此成果使以往研究中对此现象的猜测得以证实，为将电弧光谱信息应用于熔滴过渡检测提供了理论和实验依据，为开发新型光谱传感器和创建新的焊接过程控制法奠定了基础。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？