氢化钛粉颗粒的粉碎及机理研究

发布时间：2018-03-25 03:13

本文选题：氢化钛粉　切入点：闭环气流磨　出处：《粉末冶金技术》2017年03期

【摘要】：本文采用闭环气流磨系统对氢化后得到的粗颗粒氢化钛粉进行粉碎,利用扫描电子显微镜和粒度分析技术对结果进行表征,并对闭环气流磨的粉碎机理进行了讨论。结果表明,对粗颗粒氢化钛粉进行闭环气流磨粉碎,克服了氢化脱氢法(hydrogenation dehydrogenation,HDH)制备的钛粉存在的粒度不均匀、粒度分布较宽等品质问题;其粉碎机理可总结为,经多股高速高压氩气流冲击、打磨,粉末颗粒自身相互碰撞、摩擦,以及粉末颗粒与磨料腔腔壁、分级轮的碰撞,粗颗粒氢化钛粉从大颗粒粉碎成细小颗粒。
[Abstract]:In this paper, the closed loop gas mill system is used to comminute the hydrogenated coarse titanium powder, the results are characterized by scanning electron microscope and particle size analysis, and the grinding mechanism of the closed loop airflow mill is discussed. In order to overcome the quality problems of titanium powder prepared by hydrogenation dehydrogenation HDH (hydrogenation dehydrogenation HDH) by closed-loop airflow grinding and grinding of coarse particles, the quality problems such as uneven particle size and wide grain size distribution are overcome, and the crusher mechanism can be summarized as follows: through multi-strand high speed and high pressure argon flow impact, In grinding, the powder particles collide with each other, friction, and the impact of powder particles and abrasive cavity wall, classification wheel, coarse particles of titanium hydride from large particles into fine particles.
【作者单位】：成都理工大学材料与化学化工学院;攀枝花学院;四川省钒钛材料工程技术研究中心;
【基金】：四川钒钛产业技术研究院资助项目(2013GC0146) 攀枝花科技局资助项目(2014CY-G-5)
【分类号】：TF123.23

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