电弧

Sponge zirconium was employed as raw material to prepare wedge-like specimens of Zr52.5Cu17.9Ni14.6Al10Ti5 quinary alloy by a tilt casting method using ladle-hearth-type arc furnace. The effect of active element Sc on the glass forming ability and crystallization kinetic parameters of the quinary alloy is investigated.

摘 要：以海绵锆为原材料，利用浇包型坩埚电弧炉倾斜铸造法制备Zr52.5Cu17.9Ni14.6Al10Ti5五元块体非晶合金楔形试样，研究活性元素Sc对合金玻璃形成能力及晶化动力学参数的影响。

Fig. 6 Radial magnetic field contact arc

图6 横向磁场触头电弧

A lot of experiments prove that it has relatively high data sampling speed and waveform resolution rata, it provides a new method for the study of the are voltage sudden-changing process.

试验证明该系统具有较高的数据采集速度和波形分辨率，它为电弧电压突变运动过程的深入研究提供了新的分析方法和手段。

Research on reducing flicker caused by arc furnace with advanced static var generator.

用新型静止无功发生器抑制由电弧炉引起的闪变之研究。

Keywords: plasma arc;reflex arc;penetration control

中文关键词：等离子弧；电弧反翘；熔透控制

The bond strength is higher than 40MPa, which is increased by 52 percent than that of regular arc sprayed coatings.

MPa，比普通电弧喷涂提高了52%。

According to heavy-duty rail welding of containers at the port of Shantou,this paper studied high-carbon high-strength alloy-rail welding by using regular manual electric arc welding technology.

针对汕头国际集装箱码头重型钢轨的焊接问题，对高碳高强合金钢中的重型钢轨用常规的手工电弧焊焊接工艺进行了研究。

If the switched current is too high, the resulting temperature increase and contact arcing will degrade the relay and shorten the contact life.

如果切换电流太高，造成的温度升高和接触电弧将会劣化继电器并缩短接触寿命。

"Modern furnaces range in heat size from a few tons up to 400 tons (360 metric tons), and the arc s strike directly into the metal bath from vertically positioned, graphite electrodes to remelt scrap steel or refine briquettes of direct-reduced iron ore."

现代电炉的装料量从数吨到400吨(360公吨)不等，而且电弧从垂直放置的石墨电极直接射入金属熔池。

"Modern furnaces range in heat size from a few tons up to 400 tons (360 metric tons), and the arcs strike directly into the metal bath from vertically positioned, graphite electrode s to remelt scrap steel or refine briquettes of direct-reduced iron ore."

现代电炉的装料量从数吨到400吨(360公吨)不等，而且电弧从垂直放置的石墨电极直接射入金属熔池。

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。