期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
中药制药中圆管形混合器需要解决的关联问题
1
作者 刘落宪 姚淑娟 《中国医药导报》 CAS 2007年第07X期100-101,共2页
中药制药中采用液液分散操作可以使液液分散的相界面增加,分散相液滴反复进行破碎、聚并,从而促进分散相液滴间的传质。目前,在液液分散中广为采用的是搅拌的方式。搅拌可使液滴破裂、聚并和悬浮,搅拌推动液体以一定的强度和方向流... 中药制药中采用液液分散操作可以使液液分散的相界面增加,分散相液滴反复进行破碎、聚并,从而促进分散相液滴间的传质。目前,在液液分散中广为采用的是搅拌的方式。搅拌可使液滴破裂、聚并和悬浮,搅拌推动液体以一定的强度和方向流动,从而影响液滴的分布与均一性。 展开更多
关键词 圆管形混合器 摩擦点数 混合液流速 混合液体黏度
下载PDF
Combined effect of boundary layer formation and surface smoothing on friction and wear rate of lubricated point contacts during normal running-in processes 被引量:9
2
作者 Yazhao ZHANG Alexander KOVALEV Yonggang MENG 《Friction》 SCIE CSCD 2018年第3期274-288,共15页
The combined effect of boundary layer formation and surface smoothing on friction and wear rate of metallic surfaces under lubricated point contact condition was investigated. The double trend of friction coefficient ... The combined effect of boundary layer formation and surface smoothing on friction and wear rate of metallic surfaces under lubricated point contact condition was investigated. The double trend of friction coefficient variations was revealed during running-in and sub-running-in processes. The evolution of surface topography was measured on-site using white-light interference profilometer and analyzed using bearing area curves. Comprehensive theoretical equations that explicitly express the contributions of boundary friction, adhesive friction and wear have been derived, and results obtained by these equations were compared with experimental observations. It is concluded that the theoretical models are quantitatively adequate to describe the combined effect of surface smoothing due to mechanical wear and formation of boundary films on the changes in friction and wear rate during normal running-in processes. 展开更多
关键词 RUNNING-IN bearing area curves friction modeling wear modeling mixed lubrication
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部