电弧

In addition to its flexible design, impact construction and free maintenance etc., the most outstanding advantages are the reliability and safety, including the prevention of the occurrence of the failure arc, reliable insulating isolation and plug in unit; reliable drawout units and effective limiting for temperature rise.

除具有设计灵活、结构紧凑和免维护等特点外，安全可靠性是其最突出的优点，包括抗故障电弧、可靠的绝缘分隔及接插性能、可靠的抽屉单元和温升限制。

Al coats formedon the surface of 6061aluminumalloy were obtained by arcspraying equipment.

采用电弧喷涂技术在6061铝合金基材表面制备纯铝涂层。

Sample configurations are 1 AC, 1 Hiper NMC, 1 Hiper ARC, 2 PRI DSPs,-OR- 2 AC, 1 Hiper NMC, 2 Hiper ARC, and 8 PRI DSPs,-OR- 2 AC, 1 Hiper NMC, 2 Hiper ARC, and 14 PRI DSPs.

样品配置1交流，1艾泰NMC，1艾泰弧，2革命制度党的DSP，或- 2交流，1艾泰NMC，2艾泰电弧，革命制度党的DSP和8，或- 2交流，1艾泰NMC，2艾泰弧，革命制度党的DSP和14。

An experiment on DC arc plasma ignitor which was made by ourselves was carried on to research jet characteristic, in which the influence of voltage was excluded by keeping the DC output voltage of plasma power at 24V.

对自行设计的直流电弧等离子体点火器进行射流特性实验，其中等离子体电源直流输出电压保持24V不变，排除电压的影响。

Through image digitalization and digital image frame analysis, the dynamic change of arc state and droplet motion before and after its detachment from wire tip can be quantitively described. The kinematical and kinetical parameters of droplet motion can be solved. The development of the system provides a new way for the study of metal transfer mechanisms and the interaction between droplet transfer and weld pool.

该系统通过对高速摄影图象的数字化处理及时间图象序列分析，可以对熔滴过渡过程中电弧变化的动态过程及熔滴脱落前后的运动过程进行定量分析，并可提取出熔滴运动的各种运动学和动力学参数，为进一步的熔滴过渡机理及熔滴与熔池相互作用的研究提供了新的研究手段。

The effect of the density of MeO (volume fraction,%) on the contact area of the molten pool and fusion force was discussed in details.

结果表明：与第二相MeO的密度、热导率及体积分数等物性参数对熔池接触面积的影响相比，电弧输入能量的影响才是最主要的。

The microstructures, phase compositions, magnetic properties of Sm2F17-type alloys and their nitrides have been studied by means of arc-melting, HDDR and nitrogenation processes.

通过采用电弧炉冶炼、HDDR及氮化的方法，对Sm2Fe17型合金及其氮化物的组织形貌、物相及磁性能进行研究发现，多补偿添加25%钐可使Sm2Fe17型合金退火后的α-Fe含量小于2%。

The high velocity arc spraying technology and powder-cored metal threads were bi-used to repair the waste components, and the integration between coating preparation and materials formation to Fe-Al base intermetallic compounds came true. A new supersonic ion spraying technique, named bi-channel, bi-temperature, was invented to solve successfully the issues of over-melting, half-cooked and burned materials. The high-energy mechanical and chemical method with own property right was explored to solve successfully the issue, which the nano particles dispersed evenly and suspended stably in the solution. After perfecting the techniques the high-performance co-electrodeposition between the conductive matrixes metal Ni and the nonconductive nano particles carried out. The excellent nano anti-friction self-repairing additives was prepared to achieve elementarily the self-repairing on the worn surface during the equipment worked.

首次将高速电弧喷涂技术与粉芯丝材相结合的方法应用于再制造零部件的表面修复，实现了Fe-Al金属间化合物的制备与涂层成形一体化；发明了一种&双通道、双温区&的高效能超音速等离子喷涂新工艺，解决了过熔、夹生及烧损问题；开发了具有自主知识产权的高能机械化学法，解决了纳米电刷镀时纳米颗粒在多离子溶液体系中的均匀分散与悬浮稳定的难题，通过工艺优化实现了非导电的纳米颗粒与导电的基质金属镍的高效共沉积；发明并制备了性能优异的纳米减摩自修复添加剂，初步实现了在装备运行过程中对磨损部位的原位动态自修复。

All welds shall be made using the Tungsten Inert Gas welding process using tungsten nonconsumable electrodes and 100 percent commercially dry and pure argon gas for internal pipe purging and for electrode shielding.

所有焊接点的焊接必须采用钨极电弧焊之焊接方法，使用钨非自耗电极及100％干纯商品氩气用作内部清洗与电极保护。

From the analysis,it can be found that improper L and R will led to overlarge grounding residual current and voltage in the arc-suppression process,being not helpful.

由分析过程可以得出，电感值和电阻值的大小选择不合适，将会在灭弧过程中产生过大的接地残流或后期过高的过电压水平，不利于电弧的快速熄灭。

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。