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PRESSURE CHARACTERISTICS AT TIP OF METAL DELIVERY TUBE IN GAS ATOMIZATION |
SHEN Jun;CUI Chengsong;JIANG Zuling;LI Qingchun Harbin Institute of Technology |
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Cite this article:
SHEN Jun;CUI Chengsong;JIANG Zuling;LI Qingchun Harbin Institute of Technology. PRESSURE CHARACTERISTICS AT TIP OF METAL DELIVERY TUBE IN GAS ATOMIZATION. Acta Metall Sin, 1993, 29(1): 80-83.
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Abstract Effect of key operation parameters, such as gas inlet pressure, geometrical de-sign and relative position of metal delivery tube, atomization gas, etc., on the overpressureand / or underpressure in the gas-metal interaction zone at the tip of metal delivery tube ori-fice has been experimentally investigated. It was found that to properly raise the atomizingpressure, to lower the position and to reduce the cone angle of delivery tube may produce anegative pressure at the tip of delivery tube, thus, the aspiration for injection of molten metalwill be more effective. The formation of pressurization and aspiration, as well as the criticalpressure condition for gas atomization process were proposed and discussed.
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Received: 18 January 1993
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1 Baram J C, Veistinen M K, Lavernia E J, Abinante M. Grant N J. J Mater Sci, 1988; 23: 2457 2 Veistinen M K, Lavernia E J, Abinanle M Grant N J. Mater Lett, 1987; 5: 373 3 Ando T, Tsao C Y, Wahlroos J, Grant N J. Inter J Powder Metall, 1990; 26: 31 |
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