نتایج جستجو برای: metal plating industry
تعداد نتایج: 394164 فیلتر نتایج به سال:
An improvement on the fabrication of magnetic thin films is currently on a level of intense research as these films are of great interest in the device industry. Some of these thin films posses high permeability and ferromagnetic resonance (FMR) frequency in the GHz range which are suitable for electromagnetic use. Methods for fabricating these films include sputtering, pulse laser deposition (...
The selective recovery of heavy metals of Cu, Zn, Ni and Cr from a mixed plating sludge by sulfidation and oxidation treatment was targeted in this study. At first, the mixed plating sludge was simultaneously subjected to an extraction and Cu sulfidation process at pH=1.5 to dissolve heavy metals and to precipitate Cu as CuS. In the next step, the sulfidation treatment of Zn was carried out at ...
Hazardous effects of an effluent from the chrome plating industry were examined by exposing transgenic Drosophila melanogaster (hsp70-lacZ) to various concentrations (0.05, 0.1, 1.0, 10.0, and 100.0 micro L/mL) of the effluent through diet. The emergence pattern of adult flies was affected, along with impaired reproductive performance at the higher dietary concentrations of the effluent. Intere...
BACKGROUND Plating and pickling processes are the most effective ways for increasing the strength of metal structures, and workers in these units are exposed to various contaminants, including acid mists. The aim of this study was to investigate the effect of protective masks in decreasing the respiratory symptoms and the aerobic capacity of workers that are exposed sulfuric acid mist. METHOD...
A mixed plating rinse wastewater containing zinc, hexavalent chromium, trivalent chromium, and cyanide with total dissolved solids of 424 mg/1 was treated by a model consisting of a sand filter and ion exchange columns. A strongly acidic cation resin in hydrogen form and a strongly basic anion resin in hydroxide form were used in the columns as cationic and anionic exchangers, respectively. The...
Aluminium is the world’s second most-used metal after steel and the aluminium production industry is the largest, in volume of metal produced, in non-ferrous metal industry. In this study, results of the material flows (country and global scales) related to the production and use of aluminium and energy consumption in 1980 to 2012 were separately analysed. Also, overview of the current status o...
Orthopaedic implants are made up of metal alloys which even though inert may cause allergic hypersensitivity reactions systemic or cutaneous. We discuss a case reaction to orthopaedic forearm plating was manifested locally thought out the body surface. Dermatologist and surgeon worked collaboratively manage this scenario successfully. However, further research needs be carried for detection pre...
Aerospace industry is a value-added and technology integrated industry. Sheet metal parts are important portion of aerostructures. The sheet metal production line combines five different routing types together. This study tries to make a comparison between job shop layout and cellular layout with lean concept. According to precedence diagram of sheet metal fabrication process, the model and mea...
Solid electrolyte interphase (SEI) plays a critical role in determining the interfacial stability, which turn impacts plating/stripping process of lithium metal anode. Substantial research has been focused on composition SEI and its contribution to stability. Herein, we illustrate significance structure, comprehensive comparison diluted (1 M LiTFSI-PC) super-concentrated (8 LiTFSI-PC). Illustra...
Gh. Amza, Z. Apostolescu, Faculty of Engineering and Management of Technological, Polytehnic University of Bucharest, Romania D. Dobrotă, Engineering Faculty, “Constantin Brâncuşi” University of Târgu-Jiu, Romania V. Petrescu, Engineering Faculty, Lucian Blaga University of Sibiu, Romania R. G. Albulescu, The Oil Company, Ploiesti, Romania Plating by welding in an ultrasonic field represents a ...
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