Computational results of welding arc and pool were close to those of the experiments.
结果表明：用数学模型模拟出的电弧行为特征以及熔池形状与试验结果相吻合。
This research is significant and valuable to the study of underwater welding arc physics.
本研究工作对水下焊接电弧物理及焊接冶金的研究有参考价值。
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。
Elevated temperature method is used to measure the thermal power and electrical properties of welding arc.
采用温升法测量了电弧的热功率和静特性。
The works is significant and valuable to the study of underwater welding arc physics and welding metallurgic.
本研究工作对水下焊接电弧物理及焊接冶金的研究有参考价值。
At the special request of the flux-cored wire welding underwater, the welding arc control system is developed.
根据药芯焊丝水下焊接的要求，研制了一套水下焊接电弧控制系统。
In contrast with general welding method of single arc, the forms of Plasma-MIG welding arc are more complicated.
与一般的单电弧焊接方法相比，等离子mig焊的电弧形态要复杂的多。
High-speed photograph is an advanced useful method, which is widely used in the research work of droplet transfer of welding arc.
高速摄影是一种先进实用的实验手段，广泛用于焊接熔滴过渡研究中。
In this paper the temperature of underwater welding arc is investigated systematically by means of spectral diagnostics of plasma.
本文利用等离子体光谱诊断法对水下焊接电弧温度进行了比较系统的研究。
A new method for the diagnostics of the welding arc temperature fields is studied on the basis of Plasma physics, laser speckle photography.
根据散斑照相和电弧等离子体物理学原理，研究了诊断氩气焊弧温度场的新方法。
Welding arc data error of signal collected will be increased by the existence of noise. Accurate degree of data will be interfered and change.
由于噪声的存在，会使测试分析系统所采集到的焊接电弧电信号的数据误差增大，数据的精确程度会受到干扰而发生变化。
The diagnosing time of plasma is greatly shortened, and the prerequisite of real time control with microcomputer of welding arc is thus provided.
这不但使电弧等离子体诊断过程的时间大大缩短，而且由于检测时间短，为直接采用微机实时控制焊接电弧创造了先决条件。
This paper studied the effects of weld pool surface deformation on welding arc behavior characters basing on unified arc pool mathematical model.
在电弧与熔池统一模型的基础上研究熔池上表面变形对电弧行为特征的影响。
The regular pattern of the resistance of the welding arc duty simulator is designed. And a controller is developed to control the change of resistances.
明确了模拟电弧负载电阻值的变化规律并研制了实现该阻值变化规律的控制器。
Control system of the rotating welding arc sensor was developed by the authors. It was timing controlled by the prior single chip microcontroller 80c196kb.
介绍了自行开发的旋转电弧焊缝自动跟踪系统，采用性能更高的80c196 K B单片机实时控制。
This paper describes the structure and the principle of the projected instrument of optical fibers inspection for the welding arc and gives major parameters.
本文介绍光导纤维内窥焊弧投影仪的结构和原理，并给出主要参数。
Test and control of welding arc by the means of investigating and utilizing the information is the direct and effective way to study the complex mater-welding arc.
电弧中含有丰富的光谱信息，研究并利用这些信息进行焊接电弧的测控是研究焊接电弧这一复杂物质的最直接最有效的方法。
The measuring methods of D C TIG welding arc anode sheet surface current density split sheet method and probe (made by ourselves) method were analysed and compared.
对直流TIG电弧阳极板表面电流密度的测量方法——分离极板法和探针（自制）法进行了分析比较。
This article illuminates the nitrogen behavior in the welding arc zone and weld pool respectively so as to control the content of solid solution nitrogen effectively.
对熔焊时电弧区、熔池区的氮行为进行了分析，以实现焊缝固溶氮含量的有效控制。
A high speed rotating welding arc sensor was developed by the authors. Compared with the existing arc sensors, its superiority is much more compact and more sensitive.
介绍了一种高速旋转电弧传感器，与现有的同类传感器相比，具有结构紧凑、灵敏度高的特点。
The action mechanism of externally-applied magnetic field on the welding arc and droplet transfer was explored, and the magnetic field distribution required was defined.
探讨了外加磁场对电弧及熔滴过渡的作用机理，明确了所需的外加磁场分布。
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。
A mathematical model of fume diffusion in welding process was founded by considering welding arc as a spot source of generating fume and supplying the turbulent diffusion theory.
把焊接电弧作为一个发尘点源，应用大气湍流扩散理论，建立了焊接过程中烟尘扩散的数学模型。
The main welding parameters such as welding current, arc voltage and welding speed have been optimized by the orthogonal test and welding arc dynamic wavelet analysis instrument.
运用正交试验，结合自行研制的焊接电弧动态小波分析仪对焊接电流、电弧电压、焊接速度等主要焊接工艺参数进行了优化研究。
The physical and chemical properties of welding arc affecting the amount and toxicity of fumes generated during manual arc welding with low carbon steel basic electrodes are investigated.
本文研究了影响碳钢碱性焊条焊接烟尘量及其毒性的电弧物理及化学因素。
By combining experiment with theoretical analysis, the influence of adding axial magnetic field on shape and properties of tungsten inert gas (TIG) welding arc and weld profile was studied.
采用实验与理论分析相结合的方法，研究了外加纵向磁场对TIG焊电弧形态、电弧静特性及焊缝形貌的影响。
Helium is used for arc welding and leak detection, mostly, although NASA USES it to pressurize space shuttle fuel tanks.
虽然美国宇航局用它来给航天飞船的燃料箱加压，氦主要还是用来做弧焊和裂纹检测。
Helium is used for arc welding and leak detection, mostly, although NASA USES it to pressurize space shuttle fuel tanks.
虽然美国宇航局用它来给航天飞船的燃料箱加压，氦主要还是用来做弧焊和裂纹检测。
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