Device for testing grease evaporation rate in vacuum environment
A vacuum environment, evaporation rate technology, applied in the field of space lubrication, can solve the problem of low evaporation rate grease test error, etc., to achieve the effect of reducing environmental requirements and reducing measurement errors
Active Publication Date: 2011-08-31
NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to solve the problem that the indirect test method in the prior art has a large error in the test of low evaporation rate grease, and proposes a device for testing the evaporation rate of grease in a vacuum environment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0028] figure 1 It is a structural schematic diagram of the oil evaporation rate applied in the test space of the present invention, wherein, 1-test cabinet, 2-vacuum pumping system, 3-vacuum chamber, 4-thermal control sample stage, 5-test quartz crystal microbalance, 6-pollution Monitoring quartz crystal microbalance, 7-computer, 8-computer cabinet.
[0029] (1) Clean a pair of quartz crystals in the test quartz crystal microbalance and a pair of quartz crystals in the pollution monitoring quartz crystal microbalance, wherein the quartz crystals are all adopted AT cut, 15MHz, and the diameter of the effective test area is 0.6cm; Then place it in a constant temperature and humidity chamber with a temperature of 23±2°C and a relative humidity of 50%, and stabilize it for 1 hour;
[0030] (2) Take a piece of quartz crystal in the quartz crystal microbalance tested in (1) out of the constant temperature and humidity box, and then apply a layer of space grease LWYZ-1 evenly on th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Evaporation rate | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a device for testing grease evaporation rate in vacuum environment, belonging to the technical filed of space lubrication. The device comprises a test equipment cabinet, a vacuum pumping system, a vacuum chamber, a thermal control sample stage, a test quartz-crystal microbalance, a pollution monitoring quartz-crystal microbalance, a computer and a computer cabinet. The connection relationship is as follows: the vacuum chamber is communicated with the inner side of the vacuum pumping system, gas therebetween is sealed by a rubber sealing ring, and the vacuum chamber isconnected with the vacuum pumping system through a bolt; the test equipment cabinet is connected with the outer side of the vacuum chamber through a bolt to play a role in support; the thermal control stage is positioned in the vacuum chamber, and an insulation mat is arranged between the thermal control stage and the vacuum chamber; the test quartz-crystal microbalance and the pollution monitoring quartz-crystal microbalance are arranged on the thermal control stage; and the computer is connected with the test quartz-crystal microbalance and the pollution monitoring quartz-crystal microbalance through data wires so as to test and process the data of the test quartz-crystal microbalance and the pollution monitoring quartz-crystal microbalance.
Description
technical field [0001] The invention relates to a device for testing the evaporation rate of grease in a vacuum environment, belonging to the technical field of space lubrication. Background technique [0002] Based on the grease used in space, the saturated vapor pressure is one of the important technical indicators to measure the service life of the space and assess the contamination of other sensitive surfaces. The evaporation rate method is the most commonly used method to test the grease used in space. This test method is to test the grease Put it into the evaporating pot, the oil molecules evaporate into the vacuum chamber through the small holes on the evaporating cover, and finally condense on the balance plate or the quartz crystal of the quartz micro crystal balance, measure the condensation quality, and calculate the evaporation rate, that is, the evaporation rate The measurement of rate is the core problem of its measurement. [0003] The main disadvantage of th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
Inventor 柏树王鷁颜则东姚日剑冯杰庄健宏
Owner NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH