查询词典 electric arc

This paper provides a simple, feasible way to simulate the electric characteristic of electric arc furnace.

在模拟电弧炉电弧电气特性上探索出了一种可行的、简单的方法，能够模拟出和实际电弧炉主电路相一致的外特性，能够满足电弧炉电弧控制试验的需要。

Steel billets are adopted edition of tran scription or strip steel, steel because of its riveting process does not fall into the stove with the pipe, electric arc welding arc-welded pipe and take the initiative; pipe material and its usefulness is not the same but is divided into: galvanized steel riveting , there is no rust steel riveted steel pipe.

钢管采纳的坯料是誊写钢版或者带钢，钢管因其铆接工艺没有同而分成炉焊管，电弧焊接管和主动电弧焊管；焊管因其材料和用处没有同而分成：镀锌铆接钢管，没有锈钢铆接钢管。

During plasma-arc keyhole welding, the physical process of keyhole effect and that of weld electric arc condition and influence each other.

小孔效应&的物理过程与电弧物理过程相互制约、相互影响，对电弧信息的分析可以清楚的掌握&小孔效应的变化规律。

After the analysis of weld electric arc message, the variation laws of keyhole effect in plasma arc welding have been understood.

本文对等离子弧的电压信号和声音信号进行了深入地研究，首次使用电弧电压信号和声音信号定量地识别了&小孔效应&的变化。

Especially, it pointed out that the design of modern steel-making electric arc furnace short net should base on three-phase balance, delta connection should be implemented inside the transformer, the section of conductor should be selected according to the density of economy electric current and the number of connected points of short net should be reduced.

围绕现代电弧炉供电及工艺方面的改进，提出短网设计与改造要点，特别指出：现代炼钢电弧炉短网的设计要以三相平衡为主，变压器的二次出线三角形封口要在变压器内实施，短网导体截面要按经济电流密度选取，以及尽量减少短网导体联接处。

Have a 15-ton electric arc furnace, 15-ton AOD furnace, 3-ton electric-hydraulic hammer, air hammer, common lathe, CNC lathe, large-diameter end face lathe, vertical lathe, drilling and other production equipment more than 100 Units; the existing chemical composition analysis equipment, Portable Direct Reading Spectrometer alloy composition analyzer, SPECTRO desktop direct reading spectrometer, complete sets of metallographic analysis, ultrasonic flaw detector, magnetic particle flaw detector, universal tensile testing machine, impact tester, hardness testing, ultrasonic thickness testing equipment, etc., production fully equipped, perfect testing means, at home with the industry's leading annual production of alloy steel, stainless steel bar and forging material 30,000 tons, 5,000 tons of finished flanges.

拥有15吨电弧炉、15吨AOD炉、3吨电液锤、空气锤、普通车床、数控车床、大口径端面车床、立车、钻床等生产设备100多台；现有化学成份分析设备、便携式直读光谱合金成份分析仪、SPECTRO台式直读光谱仪、成套金相分析、超声波探伤仪、磁粉探伤仪、万能拉力试验机、冲击试验机、硬度试验、超声波测厚仪等检测设备，生产设备齐全，测试手段完善，在国内同行业领先，年生产合金钢、不锈钢棒材及锻材30000吨、成品法兰5000吨。

It has been obtained by analysis that for ultra-high power electric arc furnace using scrap charging the relation formula between rating capacity of transformer Pn and parameters- electric power consumption W, transformer power utilization ratio C 2, total power o...

经分析得出以废钢为原料的超高功率电弧炉变压器额定容量Pn kVA与吨钢电耗W、变压器功率利用率C2 、总通电时间ton、出钢量G之间的关系式为：Pn =(W·G·6 0 )(ton·cosφ·C2 )，同时给出了二次电压的确定方法。

Main control circuit adopts electric controlled to exchange electronic switch technology and passing zero detection techniqueing advanced electronic device, which realize to pass zero level and smooth to its cutting ,shuting floodgate and bludgoning into , no over voltage when operating it , there is no electric arc to fire again to shove to have to throw condenser bank, condenser need is it can come into operation again to discharge, its cutting restriction of number of times to throw.

主控制电路采用电力电子器件可控交流电子开关技术和先进的过零检测技术，实现电容器组的过零平滑投切、无合闸涌流冲击、无操作过电压、无电弧重燃，电容器无需放电即可重新投入使用，并且不受投切次数的限制。

The gun body of vacuum plasma welding chamber for titanium and titanium alloy imported from Germany has been reformed based on the principle of compression effection of plasma arc and stability of electric arc.

为了满足大尺寸钛及钛合金电极的焊接要求，宝钛集团有限公司依据等离子弧的压缩效应原理及电弧的稳定性原理，对从德国引进的钛及钛合金真空等离子焊箱枪体的阴极和喷嘴进行了技术改造。

The gun body of vacuum plasma welding chamber for titanium and titanium alloy imported from Germany has been reformed based on the principle of compression effection of plasma arc and stability of electric arc.

改造后，不仅提高了电弧的稳定性，而且也扩大了电极的焊接尺寸。

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。