电弧

Technology for application: As the producing technology, vacuum arc process is the one of the most advanced technology for producing quartz pots in the world now.

应用技术：采用真空电弧法生产技术，是目前世界上生产石英坩埚最先进的技术之一。

And the other is arc Process using pre-reduction pellets or high-quality industrial scrap as raw materials.

当前，主要有二种炼钢工艺，较为普遍的是以高炉铁水和废钢为原料的转炉炼钢工艺，其次是以预还原球团矿或高质量的工业废钢为原料的电弧工艺。

Based on the characteristic of GMAW arc spectrum, the method of the direct pool vision detection was proposed.

针对熔化极富氩气体保护焊接电弧光谱特点，设计了直接视觉检测法用于熔池图像的检测，获得了清晰的熔池图像。

The research on TIG welding arc ultraviolet spectrum has been completed by using this system.

利用此系统对TIG焊电弧紫外光谱进行了研究，成功地获得了不同焊接规范下。。。韩国明吴钊柳刚李俊岳

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 research stated above show that, arc spectrum signal can not only represent the process of droplet transfer, measure the frequency of droplet transfer, but also it has particular time field and frequency field characteristics and corresponding waveform modes for every kind of droplet transfer modes.

上述研究发现，电弧光谱信号不仅可以清晰地反映熔滴过渡的过程，测量熔滴过渡的频率，而且对应每种熔滴过渡形式，光谱信号都有独特的时域和频域特征以及波形模式。

The laser- plasma hybrid welding of stainless steel was conducted to investigate the hybrid arc,light induced metal vapor and plasma arc spectrum features in this paper.

利用所研制的YAG激光等离子弧复合热源，进行了不锈钢激光等离子弧复合焊过程的电弧、光致金属蒸气成像观察和光谱分析。

ABSTRACT The research of metal transfer in metal gas arc welding is of great significance for the control of arc welding process and quality, the improvement of existing welding technology and the development of new welding equipment. With the powerful aid of welding arc spectrum which contains plenty of information of metal droplet transfer, this dissertation, which mainly aims at putting forward an effective detecting method with arc spectrum signal, has inspected the spectrum of metal gas welding arc and discovered their dynamic characteristics of each kind droplet transfer mode.

熔化极气体保护焊熔滴过渡的研究，对于焊接过程及质量控制、焊接工艺方法的改进和新型焊接设备的推出都具有重要意义，而熔化极气体保护焊电弧光谱中含有丰富的反映熔滴过渡的信息。

On the basis of cognition of the potential significance of welding arc spectrum dynamic characteristics and with the destination to find out new sensoring method of metal transfer,this paper provided the parasynchronous principle and in turn verified the relationship between the pulses in the waveform of arc spectrum signals and metal droplet transfer with para high speed photography apparatus.

基于对熔化极气体保护焊电弧光谱信号动态特征重要意义的认识，以发现新的熔滴过渡传感方法为目的，本文提出准同步高速摄影法，设计了准同步光谱信号-高速摄影检测装置，验证了光谱信号波形中的脉冲是熔滴过渡所为，它们之间存在着确定的对应关系。

The effect of external AC magnetic field on arc shape and weld quality of magnesium alloy TIG welding were analyzed.

中文摘要：采用组织分析和性能检测的方法，研究了外加纵向交流磁场对镁合金TIG焊电弧形态及焊缝质量的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。