| 混料工艺对Al+Fe2 O3铝热剂反应原料性能与微观形态的影响 |
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| 引用本文： | 张继祥,夏天东,赵文军,刘天佐,马宝玉. 混料工艺对Al+Fe2 O3铝热剂反应原料性能与微观形态的影响[J]. 兰州理工大学学报, 2001, 27(4): 11-15 |
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| 作者姓名： | 张继祥 夏天东 赵文军 刘天佐 马宝玉 |
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| 作者单位： | 甘肃工业大学材料科学与工程学院, |
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| 基金项目： | 甘肃省计委重点科技攻关项目(19804) |
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| 摘 要： | 采用双螺旋和球磨两种混料方式,研究不同混料时间对铝热剂性能及颗粒微观形态的影响.结果表明混料过程中球磨混料颗粒平均粒度比双螺旋混料大,松装密度比双螺旋混料小,在双螺旋混料4 h,球磨混料6 h时混合最为均匀,球磨混料物料均匀性好于双螺旋混料.微观形态显示双螺旋混料颗粒主要以Fe2O3粉末团聚形成,球磨混料颗粒以Fe2O3和Al接近化学配比团聚在一起长大形成.
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| 关 键 词： | 球磨混料 双螺旋混料 铝热剂 |
| 文章编号： | 1000-5889(2001)04-0011-05 |
| 修稿时间： | 2001-02-23 |
Effect of mixing process on properties and morphology of precursors in Al+Fe2O3 aluminothermic reactions |
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| ZHANG Ji-kiang,XIA Tian-dong,ZHAO Wen-jun,LIU Tian-zuo,MA Bao-yu. Effect of mixing process on properties and morphology of precursors in Al+Fe2O3 aluminothermic reactions[J]. Journal of Lanzhou University of Technology, 2001, 27(4): 11-15 |
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| Authors: | ZHANG Ji-kiang XIA Tian-dong ZHAO Wen-jun LIU Tian-zuo MA Bao-yu |
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| Abstract: | Properties and morphology of thermites mixed up by twin-screw and ball milling procedures are investigated with different mixing time. Experiments show that the average particle size formed by ball milling procedure is langer than that by twin-screw mixing procedure. The density is lower as well. The optimal homegeneous mixing condition is present at the mixing time of 4-hours with the twin-screw proce- dure arid 6-hours with the ball milling procedure. The uniformity of thermite mixed by ball milling proce- dure is better than that by twin-screw procedure. The granules of twin-screw mixing procedure are formed mainly by means of the growing up of Fe2O3 balling and that of ball milling procedure are, however, formed and enlarged mainly by means of getting together of Al and Fe2O3 with each other. |
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| Keywords: | ball milling mixing procedure twin-screw mixing procedure thermite |
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