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铝合金着色工艺及着色膜性能研究 总被引:1,自引:0,他引:1
本文研究了铝合金阳极氧化着色工艺参数对着色膜性能的影响,重点研究了不同电源波形、不同着色液成分对着色膜结合强度、耐蚀性及耐磨性能的影响。结果表明该着色配方所得着色膜色泽光亮,满足预期要求。 相似文献
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环氧聚氨酯型彩色阴极电泳涂料 总被引:11,自引:1,他引:11
彩色电泳涂料具有防腐、装饰的双重作用。本文以环氧聚氨酯为彩色电泳涂料基料,比较了染料着色、颜料着色等工艺,并考察了电泳工艺参数如固体分、电泳时间、电压等对所得涂膜性能的影响。结果表明,染料着色法形成的涂膜色泽鲜艳,光滑,膜层薄;颜料着色法形成的涂膜颜色深,耐腐蚀,膜层厚。 相似文献
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探讨了铝表面直流电氧化后交流电解着色,交流电联合氧化着色,以及脉冲电流联合氧化着色3种工艺。研究了交流电联合氧化着色工艺着色膜色调随溶液成分,时间,电压的变化以及氧化膜厚度与时间的关系,初步结果肯定交流电联合氧化着色工艺值得作进一步深入探讨和小型试产。 相似文献
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LD31铝合金电解着赭红色工艺 总被引:2,自引:0,他引:2
随着建筑业对铝型材表面处理要求的提高,必须开发新的铝合金着色技术,本文介绍了一种LD31铝合金在镍-铜混合盐中的交流电解着赭红色工艺。利用X射线衍射技术分析了着色膜的分析,并测试了其耐酸、碱、盐等性能。结果表明,该工艺操作简单、成本低,着色膜耐蚀性优异,可用于实际生产。 相似文献
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为提高钢铁件的耐蚀、耐热及装饰等性能,用电沉积法研究了钢铁表面在硫酸铜溶液中的着色工艺,研究了pH值、电流密度、时间等工艺条件对着色效果的,利用光电子能谱仪分析了着色膜的成分。结果表明:钢铁表面在铜盐着色液中能获得多种颜色,着色膜主要成分为铜元素,其发色机理为光干扰效应。 相似文献
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铝合金化学氧化着仿金色工艺 总被引:2,自引:2,他引:2
提出了一种铝合金化学氧化着仿金色工艺及工艺流程,利用正交试验优选出最佳着色液配方及工艺条件,该工艺设备简单,操作方便,成本低,环境污染小,应用前景好。 相似文献
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Yuchen Liu Jin Hu Ming Li Dali Mao 《Journal of Adhesion Science and Technology》2013,27(23):2653-2660
The oxidation failure of a copper alloy lead frame with/without a copper plating layer was investigated. The oxidation rate and adhesion strength of oxide films on copper alloy substrates were studied by measuring the thickness and by carrying out peel tests. The adhesion strength of the oxide film was mainly influenced by the composition but not the thickness of the oxide film. The highest adhesion strength was obtained when the oxide film was composed mainly of Cu2O. When the thickness of the copper preplated layer was over 0.165?μm, the Cu atoms of the preplated copper were available for oxidation. Thus the oxidation process was within the copper preplated layer, and the main product of the oxidation was Cu2O. It was found that the large column grain of the oxide film on the copper alloy with a copper plated layer, favored the diffusion of copper or oxygen atoms that led to the formation of Cu2O, and lead to higher adhesion strength. This indicated that the oxidation resistance of a copper alloy lead frame can be effectively improved by electroplating copper. 相似文献
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Deposition of a thin electroless copper films on PVD copper seed layers in interconnect metallization was investigated for formation of a composite seed layer. Issues such as film stress, adhesion, electrical reliability, and hydrogen incorporation were addressed to determine feasibility of the process for the fabrication of real device structures. The formation of blisters between the copper films and underlying barrier layer were observed due to hydrogen incorporation and high level of compressive stress as a result of the electroless deposition process. Optimization of the electroless copper bath and process flow were investigated to minimize blister formation and improve fill enhancement effectiveness. Low temperature postelectroless anneal was found to remove incorporated hydrogen but also decreased overall fill effectiveness. Post-CMP electrical reliability of thin PVD/electroless/copper fill process was found to be equivalent to thick PVD/copper fill process. Potential reliability issues with electroless deposition on poorly seeded features were suggested by via yield degradation following final anneal. 相似文献
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建立了连续测定铜阳极泥脱铜渣中金、银、钯含量的分析方法,并与火试金法进行比较。首先,利用硝酸+乙二胺四乙酸(EDTA)+酒石酸消解铜阳极泥脱铜渣,得到含有银、钯和少量金的消解液,考察了硝酸、EDTA和酒石酸用量对消解效果的影响。结果表明,硝酸、EDTA和酒石酸用量分别为30mL、3mL、1.5g时,消解效果最好。然后,利用王水对残渣进行二次消解,得到含有金和少量银、钯的消解液,考察了王水用量对消解效果的影响。结果表明,王水用量为15mL时即可完成消解。最后采用火焰原子吸收光谱仪测定消解液中的金、银、钯含量。采用本方法测定铜阳极泥脱铜渣,Au、Ag、Pd各元素相对标准偏差均小于1%(n=10),加标回收率在95.57%~98.70%之间,实验结果准确可靠、重现性好,与火试金法测定结果相一致。 相似文献