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STUDY THE INFLUENCE OF H3BO3 ON THE ZINC ELECTROPLATING USING ELECTROCHEMICAL NOISE TECHNIQUE J.Q.ZHANG1,C.N.Cao2,Y.L.Cheng1,Q.Y.Cai1,Z.ZHANG1,F.H.Cao1,C.S.Wu1 (1.Department of Chemistry, Zhejiang...:The influence of H3BO3 on the zinc electroplating was studied using electrochemical noise technique, cyclic voltammetry and steady-state polarization method. The results showed that,under the experimental......
Electroplating zinc transition layer for electroless nickel plating on AM60 magnesium alloys WANG Xiao-min(王晓民)1, ZHOU Wan-qiu (周婉秋)1,2, HAN En-Hou(韩恩厚)2 1. College of Chemistry and Life Science...: Electroplating zinc coating as transition layer of electroless nickel plating on AM60 magnesium alloys was investigated. The zinc film can be deposited in a pyrophosphate bath at 50-60 ℃ under......
J. Cent. South Univ. Technol. (2007)01-0037-05 DOI: 10.1007/s11771-007-0008-1 Mechanism of zinc electroplating... substrate was improved greatly with the development of electroplated zinc coatings. Among all kinds of electroplating systems, zinc coatings electroplated in alkaline zincate solution have many good......
Removing cadmium from electroplating wastewater by waste saccharomyces cerevisiae DAI Shu-juan(代淑娟)1, 2, WEI De-zhou(魏德洲)1, ZHOU Dong-qin(周东琴)1, JIA Chun-yun(贾春云)1, WANG Yu-juan(王玉娟)1, LIU...; Abstract: The appropriate condition and scheme of removing cadmium from electroplating wastewater were investigated by adsorption-precipitation......
on zinc electroplating process. The results show that, at high overpotentials, the nucleation of zinc is instantaneous, and nuclear density increases with the overpotentials increasing. While at low..., and no distinguished nucleation current can be observed. The major dissolution peak in cyclic voltammogram drifts positively due to the change of the rate-determining step of zinc electroplating processes from......
alloys were reviewed. Theoretically, the reason for difficulties in electroplating and electroless plating on magnesium alloys was given. The zinc immersion, copper immersion, direct electroless Ni-P...- plating. WCM process: degrease→acid pickle→fluoride activation→zincate→copper cyanide electroplating. Among the above-mentioned processes, the WCM process results in the most uniform zinc film......
, electroplating and battery. It is extracted from the by-products of zinc metallurgy among which copper-cadmium slag, cadmium-rich dust and spent Ni-Cd batteries are the main raw materials[1-6]. Pure... Selective separation of copper and cadmium from zinc solutions by low current density electrolysis YANG Bo(杨 卜), WANG Cheng-yan(王成彦), LI Dun-fang(李敦钫), YIN Fei(尹 飞), CHEN Yong-qiang(陈永强), WANG......
Nickel Electroplating Toru Murakami1,Kazutoshi Komori2,Yasuo Uchikoshiki3 (1.C. Uyemura. & Co.,Ltd. ,Osaka, Japan;2.Uyemura(Shanghai;3.Uyemura-Solar(Shenzhen) 摘要:Nickel electroplating has been used practically for decades, is easy to plate, but there is an unknown interest in it.Nickel electroplating as a basis of surface treatment is shown practically from basics to the applied electronics......
has been accumulated in this field[1-6]. Binary alloys formed with zinc and iron have been investigated and applied widely. Among electroplating systems, zinc alloy coatings electroplated in alkaline... improvement of Zn-Fe alloy electroplating by hydrogen inhibitor WANG Yun-yan(王云燕), CHAI Li-yuan(柴立元) (School of Metallurgical Science and Engineering, Central South University, Changsha 410083......
for recycling utilization of nonferrous metal resource, the overall resource utilization is still in low level. Zinc ash in steel industry, spent batteries, worn electrical devices, printing circuitry boards, copper smelt residues and electroplating sludge are key issues in recycling utilization of metal secondary resource. Key words: recycling of resource; zinc ash in steel industry; spent batteries......
