含PTFE粉二相流体润滑剂高压流变学特性的研究  

The Investigation of High Pressure Rheologic CharaCter on Two-Phase Lubricants Containing PTFE Powder

作　　者：李新元[1] 宋宝玉[1] 齐毓霖[1] 

机构地区：[1]哈尔滨工业大学机械零件教研室

出　　处：《哈尔滨工业大学学报》1995年第2期87-90,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金

摘　　要：介绍了二相流体润滑剂压粘关系和粘剪关系测试计算的基本方法。对２０号机械油中加入５％ＰＴＦＥ粉的二相流体润滑剂的压粘关系和粘剪关系进行了测试。测试最高压力为１００ＭＰａ，测试温度为４０℃，测试最大剪切率为３．１２×１０４Ｓ－１。测试结果表明，所测二相流体在１００ＭＰａ压力范围内压粘关系基本符合Ｂａｒｒｕｓ方程，粘剪关系仍基本符合牛顿流体特性。his paper describes the calculation methods of pressure viscosity and viscosity shear stress relations on two phase lubricants. The test results of pressure visosity relation and the rheologic character at 36 MPa and 76 MPa are given on the two phase lubricant of No.20 machine oil + 5% PTFE powder. The test temperature is 40℃, the test pressure is up to 100MPa, and the maximum measuremental shear is 3.12 × 10℃-1. The experimental results show that the rheologic character of two phase lubricants under the pressure within 100MPa can be expressed by Barrus formula, and the viscosity and visosity shear stress relation remain the rheologic character of Newtonian fluid.

关 键 词：PTFE粉 两相流体润滑剂 流变学 润滑剂 

分 类 号：TH117.22[机械工程—机械设计及理论]