|
|
|
| Study on the influence of different processes on the vacuum gas atomized Ni powder particle size |
| YU Yong1, ZENG Gui-yu1, XIAO Ming-qing1, LE Chen1,2, OU Jian-xiong1 |
1. Hu’nan Metallurgy Material Institute, Changsha 410014, China
2. Guangzhou? Research?Institute?of?Non-Ferrous?Metals, Guangzhou 510651, China） |
|
|
|
|
Abstract Nickel powders were produced by close-coupled gas atomization. The effects of atomization pressure, nozzle inner diameter and melting temperature on the particle size were studied. The results show that the particle size reduces with the increasing of atomization pressure or melting temperature, or the decreasing of nozzle inner diameter. The optimum parameters for the preparation of fine nickel powders are as follows: atomization pressure of 5 MPa, nozzle inner diameter of 4.5 mm and melting temperature of 1 600 ℃. The powders produced under this condition are mainly spherical.
|
|
Received: 01 July 2014
Published: 28 February 2015
|
|
|
|
| [1] |
李茸，刘祥萱，王煊军．纳米金属镍粉催化剂的制备及其后处理[J]．新技术新工艺，2007，9：86-89．
|
| [2] |
张翠芳，董小雷．羰基镍粉在烧结金刚石圆锯片中的应用[J]．超硬材料工程，2011，5：10-13．
|
| [3] |
李启厚，张程，王红军，刘志宏，刘智勇．超细镍粉的制备、应用现状及发展趋势[J]．湿法冶金，2009，4：193-197．
|
| [4] |
陈仕奇，黄伯云．金属粉末气体雾化制备技术的研究现状与进展[J]．粉末冶金技术，2004，5：297-302．
|
| [5] |
湛菁，岳建峰，张传福．超细镍粉的制备及还原生长机理研究[J]．材料工程，2011，7：10-14．
|
| [6] |
姜力强，张晓忠，毛信表，莫一平．超细镍粉电解制备工艺研究[J]．材料科学与工艺，1999，7：87-92．
|
| [7] |
刘筱薇，仵海东．纳米金属材料研究进展[J]．加热工工艺，2001，3：55-58．
|
| [8] |
Upadhyay R K，Spacil H S，Inteligent Processing for metal atomization[J]．Surface and Coating Technology，1989，37：379-397
|
|
|
|
2015, Vol. 25 
