电弧

High technology,through the image process of inner weld seam temperature distribution to identify the tolerance between the arc center and skelp joint gap accurately and timely.

利用彩色摄象机做为温度传感器，采用热模拟技术，CAGD高新技术，通过对内焊缝背面温度场分布情况进行图象处理，从而准确、及时地识别出电弧中心与板缝合口的偏差量，经步进电机随时调整。

Apply color camera as a temperature sensor,adopt heat analog technology,CAGD etc. high technology,through the image process of inner weld seam temperature distribution to identify the tolerance between the arc center and skelp joint gap accurately and timely.

摘 要 利用彩色摄象机做为温度传感器，采用热模拟技术，CAGD等高新技术，通过对内焊缝背面温度场分布情况进行图象处理，从而准确、及时地识别出电弧中心与板缝合口的偏差量，经步进电机随时调整。

The results show that the parallel waveform control is a low cost and effective method of lowering spattering.

结果表明：并联式波控是一种低成本的、降低飞溅的有效方法，可以优化焊接电流的波形，抑制短路末期的峰值电流，确保短路末期液桥的柔顺破断，削弱燃弧初期电弧对熔池的冲击。

The powder method is found to be satisfactory with a medium quartz spectrograph and an activated a.

采用了交流电弧碳电极粉末法，应用现有的设备(中型光谱仪、不纯碳电极、质量低的照相板)进行试验，找出了比较适当的激发条件和分析线对。

Strontium sulfate was used as the internal standard. Emission spectrography was used. The analytical line pair was chosen Ba307.159nm/Sr293.183nm.

选硫酸锶作为内标，采用发射光谱粉末法，分析线对选用Ba307.159 nm/Sr293.183 nm，试样用直流电弧激发。

An arc-discharge facility was improved by adding two graphite plates to the electrodes to form a spherical cap capacitor in the vacuum cavity so that an additional electric field of appropriate intensity could be generated.

利用改进的电弧放电法，在真空放电室内分别安装两枚石墨极板，使之形成一个球冠型电容器。

Through two experiments the recovery ratio of sponge iron separately are 80 14% and 78 34%,they are lower than recovery ratio of ordinary scrap steel .

在3t电弧炉上应用海绵铁试验生产40Cr和20CrMnTi钢锭，两次试验测得的海绵铁回收率分别为80.14％和78.34％，低于一般废钢回收率。

Sufficient pressure is applied to eliminate arcing and so a "spot weld" is produced when the circuit is fired.

操作时需要充分的压力来减少电弧，通过线的燃烧来产生焊接点。

This article describes methods of rapid repair of arc spraying and coating technology.

本文介绍快速修复方法中的电弧喷涂和粘涂技术。

In the square wave current welding,the inductance is very important to influence the fomation of square wave A.

在方波交流焊中，电抗器的电感量对方波的形成及电弧的稳定性有着很大的影响。

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。