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. The key concept of hybrid atomization is to control the liquid film formation on disk for fine powder production. Low-pressure gas atomization was utilized to promote the formation of a very thin.... In some conventional atomization methods such as centrifugal atomization and confined gas atomization, a liquid film was found to form before the final breakup[1]. It seems that the liquid film......
Article ID: 1003-6326(2005)05-0985-08 Melt metal sheet breaking mechanism of close-coupled gas atomization OUYANG Hong-wu(欧阳鸿武), HUANG Bai-yun(黄伯云), CHEN Xin(陈 欣), YU Wen-tao(余文焘) (State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China) Abstract: The gas atomization is the process that a liquid mass is disintegrated into a collection of liquid......
Influence of melt superheat on breakup process of close-coupled gas atomization OUYANG Hong-wu(欧阳鸿武), CHEN Xin(陈 欣), HUANG Bai-yun(黄伯云) State Key Laboratory of Powder Metallurgy, Central South...; Abstract: In close-coupled gas atomization(CCGA), the influences of melt superheat on breakup process are fundamental to obtain......
NUMERICAL SIMULATION OF ATOMIZATION GAS FIELDS IN VARIOUS ATOMIZING PROCESSES Q.C.Li1,C.S.Cui1,J.Shen1,J.F.Sun1,F.Y.Cao1 (1.National Key Laboratory of Precision Hot Processing of Metals, Harbin... the effects of key atomizingvariables such as gas pressure and protrusion length of delivery tube on the gas flowstate at the tip of or inside the delivery tube. Increasing the length of delivery tube toa......
Design and evaluation of a Laval-type supersonic atomizer for low-pressure gas atomization of molten metalsChao-run Si1,Xian-jie Zhang1,Jun-biao Wang1,Yu-jun Li1,21. Shannxi Engineering Research... supersonic gas atomizer was designed for low-pressure gas atomization of molten metals. The principal design objectives were to produce small-particle uniform powders at lower operating pressures......
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Effect of closed-couple gas atomization pressure on the performances of Al-20Sn-1Cu powdersZHAO Xinming, XU Jun, ZHU Xuexin, and ZHANG Shaoming National Engineering and Technological Research Center..., the secondary dendrite arm spacing (SDAS) decreases and the cooling rate increases. The particles processed under high gas atomization pressure (1.6 MPa) exhibit a lower SDAS value and a higher cooling rate......
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58g/s条件下, 制备出平均粒径为20μm和球形度良好的不锈钢粉末. 关键词: 气固两相流雾化; 不锈钢; 气雾化 中图分类号: TG146.23 文献标识码: A Fabrication of fine stainless steel powder by gas and solid dual-phase atomization CHEN Gang, SU Bin, CHEN Din, ZHANG Fu-quan, CHEN Zhen-hua (School of Materials Science and Engineering,Hunan University, Changsha 410082, China) Abstract: A novel gas and solid dual-phase atomization technology with solid salt......
on characteristics of SnAgCu alloyed powder prepared by gas atomization LIU Wen-sheng, PENG Fen, MA Yun-zhu, CUI Peng, CHEN Shi-qi, LIU You-chang (State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China) Abstract:SnAgCu lead-free solder powders were prepared by close-coupled gas atomization. The effects of gas atomization pressure and melt superheat......