镀镍前或锡电镀间的阴极接触不良，放电火花将铜材熔成凹洞。
Before or tin plating nickel plating of bad contacts between the cathode, discharge sparks will melt into hollow copper hole.
由分析静电放电火花点火过程的物理特征和静电放电火花的点燃特性。
The physical characteristics of the ignition processing caused by electrostatic discharge (ESD) sparks and the igniting characteristics of the ESD sparks are investigated.
简要分析了现有静电放电模型的局限性和直接测试静电放电火花隙电阻值存在的问题。
The limitations of the electrostatic discharge models and the problems that arise in direct testing of the resistance of the spark discharge channel are briefly analyzed.
对聚烯烃粉体生产工艺过程中典型和频发性的静电放电火花的点燃危险性进行了定量评价。
In the production line of polythene and polypropylene powder, the ignition risk caused by typical and frequently occurred ESD sparks has been quantitatively assessed.
不同类型的静电放电火花点燃可燃物过程的能量耦合效率不同，可高达10 0 % ，也可能< 1%。
The efficency of the energy coupling have been changed between less than 1% and high to 100% according to the different types of ESD spark ignition.
通过研究典型静电放电火花的实际点燃能力，对实际生产工艺工程中的静电放电火花的点燃危险性进行定量评价。
Through studying the real ignition ability of typical electrostatic discharge (ESD) sparks, the ignition risk caused by ESD sparks in practical production engineering was quantitatively assessed.
赫兹的这项试验说起来非常简单，他用了两块金属板相互靠近地放置，用加电的方式使这两块金属板之间产生放电火花。
Hertz's experiment sounds very simple. He used two pieces of metal placed close together. He used electricity to make a spark jump between the two pieces of metal.
放电单脉冲能量的精确控制是实现微细电火花加工的关键技术之一。
The accurate control of single pulse discharge energy is one of key techniques in micro-EDM.
放电单脉冲的电流峰值和脉宽决定了单个电火花蚀坑的大小和深度，从而直接决定了工件的加工表面粗糙度、形状精度和尺寸精度。
The peak current and pulse duration of single pulse determine the size and depth of discharge crater, so they determine the machining surface roughness and size and shape accuracy.
建立了电火花放电加工的热力学传导模型，通过有限元仿真方法得出具有放电爆炸力的单次脉冲能够明显提高难加工材料蚀除量的结论。
The heat transfer model of the discharge has been established, and the removal rate could be significant promoted because of the explosion with the method of thermodynamic finite element analysis.
问题通常不在于物体上的静电本身，而是在于物体放电时所产生的电火花。
The problem generally is not the static charge itself on the object, but rather the spark generated when the object discharges.
设计了一个用于在微细电火花加工控制中放电参数检测的高速数据采集系统，对其硬件电路进行了分析和讨论，并给出了软件说明。
A high speed data acquisition system for measurement of Micro EDM discharge parameter is designed. The hardware circuits are analyzed and discussed, also the software function is present.
海洋电火花震源采用两种放电形式和多种电极结构。
The marine electric spark uses two kinds of discharge form and multiple electrode structures.
水下等离子体声源是水中脉冲放电技术在水下声学和地震勘探技术方面的一个重要应用，又称为电火花震源。
Underwater plasma sound source, namely underwater sparker, is a significant application of pulsed discharge in water, which has been employed for underwater acoustics and sea oil prospecting.
电火花加工工件的尺寸精度受过切量影响，而过切量的大小主要取决于放电间隙和电机损耗。
The dimensional accuracy of electrical discharge machining(EDM) is greatly influenced by the overcut resulting from the discharge gap and electrode wear.
对检测电火花放电状态的阀值比较法作了改进。
The threshold comparative method in detecting electrospark discharging status is improved.
应用高速摄影技术研究电火花线切割加工（WEDM）放电、热蚀、气泡运动和金属材料的抛出过程，并对线切割加工放电的过程进行了描述。
The Paper presents the processes of corrosion, bubble movement and vaporization of metals in WEDM by using high speed photography, and also describes the process of electric discharge in WEDM.
研究了各种实际金属模具中裂纹电磁热止裂后的修复技术，如电火花放电熔焊搭桥、强化堆焊、刷镀等；
The techniques for repair are studied after crack arrest in metal dies using electromagnetic heating, such as electrical spark melt joining, reinforced build-up welding and brush electroplating.
线电极放电铣削加工是一种新型电火花铣削技术，它的最大优点是可通过线电极的缓慢移动来补偿加工中的电极损耗。
Wire Electrical Discharge Machining Milling (wire EDM-Milling) is a novel kind of EDM-Milling method that has the distinct advantage of electrode compensation via the wire electrode slow traveling.
研究了电火花放电间隙状态判别电路，选择恰当的正常火花放电、电弧放电及空载比例，确定较佳伺服进给量。
The recognition circuit for EDM gap state is researched, selecting proper rate between nomal discharge, arc and blank, defining suitable servo feed.
电火花加工中，放电介质对工件的材料去除率、表面质量以及电极相对损耗率有重要影响。
In the process of EDM, dielectric medium has remarkable influence on material removal rate, surface quality of the workpiece and relative electrode wear ratio.
常规放电状态检测方法由于仅采用单一的特征量进行状态判别，因此在加工信号频率高、加工波形产生畸变的微细电火花加工中，不再适用。
Conventional discharge condition detection methods extracting only certain eigenvalue are not suitable for the Micro-EDM due to the high frequency and distortion of voltage wave shape.
在电火花加工中要降低各种干扰因素的影响，确保加工质量和稳定的加工过程，放电间隙的一致性是非常重要的一个技术指标。
The uniformity of discharge gap is a very important technical parameter in lowering various interference factors and ensuring stable EDM process and quality.
在电火花加工中，间隙放电状态是伺服控制的依据，因此间隙放电状态的检测非常重要。
Spark states of the gap are the base of servo control in EDM, so it is very important to test them.
针对目前航空、航天等领域中日益广泛应用的硬质合金等材料出现的切削加工困难、电加工蚀除速度慢的问题，设计了带有放电爆炸力的电火花加工脉冲电源。
Based on the low removal rate of the material like cemented carbide in the space field by cutting and EDM, a pulse generator discharged with explosion is designed.
针对目前航空、航天等领域中日益广泛应用的硬质合金等材料出现的切削加工困难、电加工蚀除速度慢的问题，设计了带有放电爆炸力的电火花加工脉冲电源。
Based on the low removal rate of the material like cemented carbide in the space field by cutting and EDM, a pulse generator discharged with explosion is designed.
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