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to the experiments without current. The frequency has a more significant influence on bending force and springback than electric current density. Electroplastic(EP) effect begins to work when pulse current... of Mechanics and Mechatronic Equipment, Shandong University摘 要:In this work, the influence of pulse current parameters on springback and bending force of magnesium......
current parameters such as current density, pulse duty cycle, and frequency were investigated in terms of chemical oxygen demand (COD) removal, average current efficiency, and specific energy consumption. The results demonstrated that the relatively high COD removal and low specific energy consumption were obtained simultaneously only if the current density or pulse duty cycle was adjusted......
steel should be welded by high energy density welding technologies such as plasma arc welding(PAW), laser beam welding(LBM) and electron beam welding (EBW). Compared with LBW and EBW, PAW is a process... of the workpiece, but its cost is low, its structure is simple, and its reliability is high. In this study, the controlled pulse key-holing strategy was combined with the efflux plasma voltage sensor to realize......
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, and its value is 24 h. tH and tL refer to the duration time of high and low current density in one pulse period, and their values are 20 h and 4 h, respectively. During the 80 h polarization, the anodic... would descend to a lower level. In addition, due to the multi-step electricity pricing policy, hydrometallurgical plants tend to apply low current density during the peak electricity periods and high......
/L phytic acid. The effects of electric parameters including frequency, final voltage, duty cycle and current density on the corrosion resistance of anodic coatings formed on the magnesium alloys were... of four factors with three levels including frequency, final voltage, duty cycle and current density, was used to comprehensively investigate the effects of electric parameters on the corrosion......
Formation of Dense Inclusion Buildup on Submerged Entry Nozzle by Electric Current PulseWen-Bin Dai1,Xin Yang1,Guang-Peng Tang1,Dan-Bin Jia1,Jing-Kun Yu11. School of Metallurgy, Northeastern University摘 要:In this work, low-density electric current pulse(ECP) has been applied to submerged entry nozzle(SEN) and its effect on the morphology......
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... aqueous solution or zinc ammonia/ammonium sulphate aqueous solution by low current density electrolysis. It was shown that the concentration of cadmium ion in zinc sulphate solution decreased from 4.56 g......
effects of electric and mechanical losses cause extremely high local temperatures. Larger electric current density brings higher temperature. At higher temperature the continuity and the integrity... tester. The results show that the friction coefficient and wear rate of the composites decrease with increasing the reinforcement content, and increase with increasing the electric current density......
~(-2) . A further increase in current density results in smaller particles with high porosity. EDS and XRD analyses have shown that the PbO_2 deposited in alkaline conditions is highly non stoichiometric, and the PbO impurities are formed on the surface layer besides the α-PbO_2. The corrosion resistance of α-PbO_2 at the low current density is superior to that of the high current density. It can......
