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- Keywords pulse current plating;tin plating;solderability; 脉冲电镀;镀锡;可焊性;
- pulse current plating 脉冲电镀
- A low? cyanide bright gold plating process with pulse current was developed. 开发出一种低氰脉冲光亮镀金工艺。
- Acoording to the surface appearance and the microhardness of coating,the parameters of silver plating with pulse current are optimized by the rthorhombic experiment. 以镀层表面形貌和显微硬度为考核指标,采用正交试验法优选了脉冲镀银参数,采用优选的脉冲参数电镀与直流电镀的银镀层作了比较。
- Special pulse current technology solvesthis issue well. 采用特别的脉冲电流技术能很好地解决这个问题。
- It can provide large pulse current to load for discharge. 它可为负载提供大电流脉冲放电。
- It possesses outputs of AC, DC, AC pulse and DC pulse current. 它可以输出矩形波交流、直流、交流脉冲和直流脉冲四种电流。
- Through the combination of FDM prototyping, Nickel electroless plating, pulse current Nickel electroforming, and Zn-Al wire-arc spraying, mould cavities with high mechanical performance and causticity-resistant can be rapidly manufactured. 最后结合FDM快速原型的特点，通过对其化学镀镍和电铸镍，得到具有良好机械性能和耐腐蚀性能的模具型腔，然后组合使用电弧喷涂Zn-Al伪合金和环氧树脂浇注，对模具型腔进行背衬加固，实现注塑模的快速经济制造。
- A pulsed current solenoid wiggler[J]. 引用该论文 严祖祺.
- The temperature field around the crack tip in a current-carrying plate with a penetrated arc-crack under the action of transient pulse current was calculated and analyzed using complex function analysis solution. 摘要给出含有圆弧裂纹的载流薄板在通入强大脉冲电流瞬间，裂纹尖端处温度场分布的复变函数解。
- The zinc-iron alloy electroplating technology in zincate solution by pulse current was investigated. 介绍了在锌酸盐溶液中脉冲电镀锌-铁合金工艺。
- The properties of oxide-film can be improved greatly by using pulse current to anodize aluminum and aluminum alloy. 铝及铝合金脉冲阳极氧化能提高氧化膜性能。
- At last the large pulse current in a reconnection EML is measured with this system, and the result is satisfying. 最后，采用此系统测量了重接式电磁发射装置中的电流，取得了令人满意的效果。
- The progress of hard anodizing investigation employing A.C. superimposed on D.C., pulse current and alternating cu... 着重评述了交直流叠加,脉冲电流和交流电源在硬质阳极氧化研究中的进展情况。
- Hence the coil can be still stable against a pulsed current shock. 因此，在遭遇大电流冲击时，线圈仍有可能保持稳定。
- The effect of pulse current parameters on the internal stress of electroformed layer is discussed based on the test. 通过试验,讨论了脉冲电流电参数对镍铸层内应力的影响;
- The results showed that wear ratio of copper tool-electrodes electroformed with pulse current were obvious lowe... 结果表明,脉冲电铸铜电极可降低损耗,且在一定工艺条件下脉冲电铸电极具有优异的耐电蚀性能。
- Adopting the combination data of GPS and VLBI this paper founds a current plate motion model based up completely on space techniques.The geological model NUVEL1A is compared with the current model. 采用GPS与VLBI的组合观测数据,建立了完全基于空间技术的现时板块运动模型,与地学模型NUVEL1A进行了对比,检测了地球七大板块最近几百万年的运动趋势。
- The proposed realtime ERT system is excited by hi-directional pulse current source. 该系统采用双极性脉冲电流激励模式，避免了直流激励下的介质电极化现象。
- A quantitative analysis for dynamic stability of a set of superconducting partial torus in a fusion reactor under a pulse current over a stationary current is given. 对于聚变反应堆中超导载流磁体在稳态电流基础上受到脉冲电流影响时的动力稳定性给出了定量分析方法。
