银镀层
- silvering
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通过改变阴极电流密度、pH值,考察对银镀层质量的影响,得到最佳的硫代硫酸钠无氰镀银工艺。
By evaluating the quality of coating under different current densities and pH values , an optimal sodium thiosulphate cyanide-free silver plating process is acquired .
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测定了不同条件下银镀层的焊接性能和键合性能,结果表明,该置换镀银层分别经烘烤、潮湿试验、多次回流及在H2S气体中变色试验后焊接性能和键合性能仍然优良。
The solderability and bonding of the Ag deposits under different conditions were tested . Results show that the Ag deposits maintain good solderability and bonding after being treated by baking , damping test , reflow for several times and tarnishing test in H_2S gas respectively .
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银镀层影响裂变偶响应时间的数值计算
Numerical Calculation of Response-Time Influenced by Silver Plating on Fission Couple
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银镀层抗变色能力测定方法效果的探讨
Effects of testing methods for anti-tarnish property of silver deposits
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为进一步提高铍青铜弹性件的导电性,在铍青铜上电镀一层银镀层。
In order to improve its conductivity , silver electroplating was applied .
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银镀层电化学钝化液的分析方法
Analysis Method for Electrochemical Passivation Solution of Silver Coating
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国内代银镀层动向
Domestic Tendency to Substitute for silver Coatings
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银镀层变色不仅影响镀层的外观,更重要的是影响镀层的导电性能。
Silver plating color variation affects not only its outlook but also its electricity conductibility .
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结果表明,金刚石粒子的加入能有效提高银镀层的耐磨性和电接触使用寿命。
Results show that silver deposits are greatly improved in wear resistance and service life of electric contact .
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实验证明,防止银镀层变色的关键在于降低银的离子化。
Practices prove that : the key of protection of silver plating color variation lies in reducing silver ionization .
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研究结果表明选择带电入池,无冲击电流方式时,可增强银镀层的结合力。
The result showed that the mode of sample entering electroplating bath with electrification and without impact current could made the adhesion harder .
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在最佳参数下得到的银镀层光亮平滑,抗变色能力优良,与直流光亮镀银相比较,抗变色性能提高10%以上。
The anti-arish property of the smooth and bright deposit under optimum conditions is 10 % over that of the deposit under dc conditions .
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通过化学镀可在碳纳米管表面镀上一层连续的银镀层,以增强碳纳米管与金属基体的界面结合力。
Through electroless plating carbon nanotubes were coated with a continuous layer of silver , which will increase interfacial strength between carbon nanotubes and metal-matrix .
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通过试验,找到了不合格镀银件镀层的回收方法,确定了银镀层的回收和利用工艺。
The methods for the recycle of silver from discarded silver electroplated wares were investigated , and the processes for the recycle and utilization of the silver coating were established .
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通过对接触电阻的分析,提出了用贱金属锡铈/DJB-823涂层代银镀层的可能性。
The possibility of using SnCe + DJB-823 composite layer as a substitute for silver coating through completely analyzing of the contact resistance of the parts is described in the paper .
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用本工艺方法在高合金钢上获得的银镀层,在400°±10℃经20分钟高温烘烤,用显微镜放大100倍观察,看不到起皮,鼓泡和剥落。
The silver coating on steel alloy obtained by this process has been oven-baked under 400 °± 10 ℃ for 20 min. , then examined by a microscope with enlargement of 100 times , and no peeling , blistering and spalling are observed .
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分析了对银镀层质量产生影响的因素,发现预处理工艺和电流分布是影响银镀层质量的关键因素:电流密度会显著影响镀层表面粗糙度,电流密度为0.5A/dm~2时,可以得到表面光滑的镀层;
We find the pretreatment and electroplating technology is the key of plating layer quality : 1 , current density can influence the roughness of silver plating surface , if it is 0.5 A / dm2 , we can get the smooth silver plating ;
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SAM法研究银透过金镀层的表面富集
An Sam investigation of silver passing through the gold coated layer
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微米级铜-银双金属粉镀层结构及其抗氧化性
Plating Structure and Antioxygenation of Micron Cu - Ag Bimetallic Powder
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介绍了银-锑合金镀层和镀液中锑含量的分析方法。
This paper introduces the analysis method of silver-antimony alloy coating and antimony content .
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银-锑合金镀层及镀液中锑含量分析
Silver-antimony Alloy Coating and Antimony Content Analysis
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需要改善浸银工艺,使得银镀层能够充分地覆盖基底铜,增加浸银电路板的可靠性。
There should be an improvement of immersion silver process to make a better silver coating which can cover the base copper well to increase the reliability of PCB with immersion silver .
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银化薄层色谱(法)银镀层及银基复合镀层的制备与表征
Preparation and Characterization of Silver Coating and Silver-based Composite Coating
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研究了一种以银为金属基质、稀土氧化物微粒为分散相的复合镀层,可取代银镀层应用于电器开关的电触点上。
A composite coating containing silver as its metallic matrix and oxide particles of rare earths as disperse phase is developed for electric contacts and may be used as a substitute for pure silver plating film .
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本文研究了一种基于纤维表面巯基改性的化学镀前处理方法,成功的在纤维上形成银催化活化层,引发化学镀银,形成质量好的银镀层。
This paper put forward to a kind of pretreatment method for chemical plating which is based on mercapto modification of fiber surface , forming a silver active layer on the surface of fiber to initiate electroless silver plating .
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镀层银含量随平均电流密度或导通时间的增大而减少,提高镀液中银的浓度有利于获得高银含量镀层。
The silver content of the deposits decreases with an increase of the average current density or the on-time .