|
|
[交流]
控制应力流变仪在润滑油表征中的应用
|
Determination of the rheological or flow properties of greases under a variety of shear conditions is important for predicting the greases suitability for specific end-uses. An instrument called the Lincoln Ventmeter is often used for evaluating the flow properties of greases. That device is based on a pressurized (typical pressure 12,400 kPa) capillary which gives an index of pumpability by measuring the pressure drop across a specific distance. Although the measurement is controlled stress in nature, the shear rate in the device is not constant for the entire sample during measurement because the capillary measurement geometry has a parabolic velocity profile with the shear rate approaching zero at the centerline of the tube and a maximum at the tube wall. Hence, calculation of a relative or absolute viscosity from the experimental results is difficult. |
» 本帖附件资源列表
-
欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
- 附件 1 : 控制应力流变仪在润滑油表征中的应用.PDF
2016-07-04 15:24:59, 267.69 K
» 猜你喜欢
售SCI一区文章,我:8 O5 51O 54,科目齐全,可+急
已经有6人回复
售SCI一区文章,我:8 O5 51O 54,科目齐全,可+急
已经有10人回复
售SCI一区文章,我:8 O5 51O 54,科目齐全,可+急
已经有8人回复
售SCI一区文章,我:8 O5 51O 54,科目齐全,可+急
已经有10人回复
售SCI一区文章,我:8 O5 51O 54,科目齐全,可+急
已经有11人回复
依托企业入选了国家启明计划青年人才。有无高校可以引进的。
已经有14人回复
表哥与省会女结婚,父母去帮带孩子被省会女气回家生重病了
已经有11人回复
江汉大学解明教授课题组招博士研究生/博士后
已经有3人回复
AI 太可怕了,写基金时,提出想法,直接生成的文字比自己想得深远,还有科学性
已经有11人回复
同年申请2项不同项目,第1个项目里不写第2个项目的信息,可以吗
已经有10人回复
|