نتایج جستجو برای: electroplating
تعداد نتایج: 2876 فیلتر نتایج به سال:
n this paper a finite element model has been proposed for evaluation of primary and secondary current density values on the cathode surface in nickel electroplating operation of a revolving part. In addition, the capability of presented electroplating simulation has been investigated in order to describe the electroplated thickness of the nickel sulfate solution. Nickel electroplating experi...
The Sinos river Basin is an industrial region with many tanneries and electroplating plants in southern Brazil. The wastewater generated by electroplating contains high loads of salts and metals that have to be treated before discharge. After conventional treatment, this study applied an advanced oxidative process to degrade organic additives in the electroplating bright nickel baths effluent. ...
Electroplating pada dunia industri banyak dimanfaatkan akhir-akhir ini dengan tujuan untuk perbaikan penampakan benda kerja yang dilapisi maupun mencegah atau menghambat laju korosi logam. merupakan proses pelapisan logam dilakukan mengalirkan arus listrik searah elektroda-elektroda melalui larutan elektrolit. Tembaga, krom dan nikel biasanya digunakan sebagai pelapis saat electroplating, karen...
Nickel-tungsten alloys were electrodeposited on stationary working electrodes from a nickel sulfate, sodium tungstate, and tri-sodium citrate-based bath under different operating conditions. The microstructure of the deposits was studied by X-ray diffraction, the morphology by scanning electron microscopy and atomic force microscopy, and the approximate composition by energy dispersive spectros...
This paper addresses the issue of polishing electroplating wastewater in subsurface vertical flow constructed wetland. Electroplating wastewater treatment or polishing in constructed wetlands (CWs) was studied to a very limited degree. Four types of microcosm upflow constructed wetlands were selected for the experiment based on type of bed media and the presence or absence of vegetation (Phragm...
Abstract A sharp cube textured Ni overlayer on Cu substrates has been developed for the manufacturing of long-length RABiTS-based coated conductor tapes. Using a low-cost, non-vacuum and easily scalable technique of electroplating, smooth, crack-free and continuous Ni overlayers were deposited on cube textured Cu substrates without any intermediate layers. In addition, sharp cube textured Sm-do...
A novel polymeric sorbent has been synthesized by graft copolymerization of crosslinked polyvinyl alcohol with malic acid, and characterized by FTIR, TGA and swelling studies. A suitable and interesting method has been developed for the extraction and separation of lead ion with the graft copolymer. The lead ion uptake capacity of the polymer has been evaluated vis-a-vis varying pH and metal io...
Modern automated production lines usually use one or multiple computer-controlled robots or hoists for material handling between workstations. A typical application of such lines is an automated electroplating line for processing printed circuit boards PCBs . In these systems, cyclic production policy is widely used due to large lot size and simplicity of implementation. This paper addresses cy...
We strove to produce a microdiamond(MD)- copper composite by electroplating. Unfortunately, is naturally non-wetting with MD because of their chemical incompatibility. achieved modification the amino group for surface using photocatalytic treatment, followed electroplating copper. Results demonstrated that - material assisted photocatalysis markedly improved interfacial affinity and thermal con...
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