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ratio of Zn, Mg, Cu decreases from 1.243, 1.158 and 1.190 to 1.086, 1.098 and 1.110, respectively. The sump height decreases in ultrasonic field, the shrinkage-induced flow of enriched solute among...-guang. The acoustic field and cavitation of the ultrasound in aluminum melts and the effect of ultrasonic vibration on solidification[D]. Changsha: Central South University. School of Mechanical......
of the measured field with the ultrasonic excitation. The ultrasonic sound pressure was calculated in oil-water two-phase flow field, and the laws between the ultrasonic attenuation with the phase... in Daqing oil field[J]. Well Logging Technology, 2007, 31(1): 30-34. [12] XU L A, GREEN R G PLASKOWSKI A, et al. The pulsed ultrasonic cross correlation flow-meter for two-phase flow measurement[J]. Journal......
Motion behavior of non-metallic particles under high frequency magnetic field ZHANG Zhong-tao(张忠涛)1, 2, GUO Qing-tao(郭庆涛)3, YU Feng-yun(于凤云)2, LI Jie(李 捷)1, 2, ZHANG Jian(张 剑)1, 2, LI Ting-ju(李廷... particles in commercial pure aluminum under high frequency magnetic field. At the meantime, multi-pipe experiment was also done to discuss the prospect of continuous elimination of non-metallic particles......
vertically into the melt, because ultrasonic energy transmits into the melt with lower loss in this way. It is now widely accepted that this application manner of power ultrasound generates symmetric... in the overflowed portion. For normal UST, the ultrasonic intensity and amplitude will greatly decrease with increasing ultrasonic propagation distance in the metal melt. Energy loss is the reason......
Ultrasonic dissolution of brazing of 55% SiCp/A356 composites ZHANG Yang(张 洋), YAN Jiu-chun(闫久春), CHEN Xiao-guang(陈晓光), CUI Yan(崔 岩) State Key Laboratory of Advanced Welding Production Technology... was investigated. During the brazing process, ultrasonic vibrations were applied to samples for bonding and a significant dissolution of the filler metal into the matrix alloy in the base materials......
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vibration drawing of ball-bearing steel wires[J]. Revesita de Metalurgia, 1999, 35: 379-383. [9] Susan M, Bujoreanu L G, , Munteanu C, Mantu M. On the drawing in ultrasonic field of metallic wires...力效果,满足板材成形需要. 鉴于以上分析,将颗粒介质成形方法进一步拓展和延伸,在颗粒介质成形的基础上引入超声振动,本文作者首次提出板材超声振动颗粒介质成形(Ultrasonic-vibration granules medium forming, UGMF)工艺.将以AZ31B镁合金板为研究对象,展开UGMF试验,研究超声振动对金属板材温热成形的影响. 1 板材超声振动颗粒介质成形工艺......
the availability of Y(OH)_3 microparticles in improving the cycle properties of zinc electrodes. It was found that good alkaline environment generated by ultrasonic irradiation of high power led to the formation of Y(OH)_3 micropartieles on the surface of modified zinc powder due to high-energy jets of immersion solution. In particular, the Y(OH)_3 microparticles formed with the ultrasonic power......
下不同超声功率下制备的ZL114A合金中共晶硅SEM像 Fig. 5 SEM images of eutectic silicon of ZL114A alloy prepared with different ultrasonic power in coordination field 图6 协同场下不同凝固压力下制备的ZL114A合金中共晶硅的SEM像 Fig. 6... of 7050 aluminum alloy produced by semi-continuous casting under ultrasonic field[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(2): 318-324. [11] KOMAROV, SEGREY1, ISHIWATA. Industrial......
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