文档介绍：I31 高能球磨制备超细钛粉的研究
谢焕文蔡一湘谭立新刘辛
(广州有色金属研究院粉末冶金研究所,广州邮编 510650)
摘要:在无水乙醇和惰性气体的保护下,利用高能球磨法制备重防腐涂料用超细钛粉,通过化学分析、粒度分析仪、
扫描电镜等手段对超细钛粉的杂质含量、粒径和形貌进行了表征,研究了球磨转速、球料比等参数对钛粉粒度以及杂质
含量的影响。结果表明,在球磨转速为 378 r/m、球料比为、球磨时间为 8~18 h 的球磨工艺下可制得中值粒径
~ µm 的超细钛粉,其铁含量控制在 ~%以内,粉末呈不规则鳞片状。球磨转速相对球料比而言是影响
钛粉细化的显著性因素,而球料比则是影响钛粉铁含量增加的显著性因素。
关键词:高能球磨;超细钛粉;分散剂;涂料
Study on Ultrafine Titanium Powders
Prepared by High Energy Ball Milling
Xie Huanwen,Cai Yixiang,Tan Lixin,Liu Xin
(Department of Powder Metallurgy, Guangzhou Research Institute of Non-ferrous Metals,
Guangzhou, 510651, China)
Abstract: Ultrafine Ti powders applied for heavy-duty coatings were prepared by high energy ball milling with
protection of ethanol and inert-gas. The impurity content, particle size and morphologies of ultrafine Ti powders
were characterized by chemical analysis, particle size analyzer and scanning electron microscopy. The effects of
such parameters as rotation speed and ball-to-powder ratio on particle size and impurity content of Ti powders
were investigated. The results show that when the rotation rate is 378 r/m, ball-to-powder ratio is and milling
time is 8~18 h, the ultrafine Ti powders with median diameter of ~ µm are obtained in which Fe content
is ~ %. The ultrafine Ti powders prepared by ball milling appear irregular flaky. Compared to
ball-to-pow