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Offline abrasive particle extraction method

An extraction method and technology of abrasive particles, applied in sampling, particle and sedimentation analysis, preparation of test samples, etc., can solve problems such as inaccurate analysis of abrasive particles, achieve convenient research, ensure observation effect, and reduce stacking phenomenon

Inactive Publication Date: 2020-04-10
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides an off-line abrasive particle extraction method, which solves the technical problem that the abrasive particles are connected to each other in the prior art, resulting in inaccurate analysis of the abrasive particles

Method used

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  • Offline abrasive particle extraction method

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Experimental program
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Embodiment

[0028] For off-line abrasive particle extraction methods, figure 2 (a) It clearly shows that white products appear in the samples under the clear solutions of various concentrations at 30°C, such as image 3 As shown in (a), this is caused by the dissolution of the filter membrane by the clear solution of N-methylpyrrolidone, and the filter membrane on each sample slide has cracked and peeled, as shown in image 3 As shown in (b), these white formations, cracking and peeling have seriously affected the observation and study of abrasive particles on the filter membrane of the slide in the sample. And during the experiment, because the constant temperature platform at 30°C is basically at room temperature, it is similar to placing the slide and filter membrane directly at room temperature for normal temperature drying. It can be seen from the experimental results that when the temperature is 30°C, each concentration None of them can be successfully made into fragment slide sam...

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Abstract

The invention provides an offline abrasive particle extraction method which comprises the following steps: Step 1, firstly, manually shaking up an offline oil liquid for 30 seconds, putting the offline oil liquid into an ultrasonic machine, and oscillating for 30 minutes to uniformly mix the oil liquid and abrasive particles and avoid agglomeration and deposition of the abrasive particles; Step 2,diluting the oil sample, namely diluting the collected oil sample with kerosene at a ratio of 3: 1 so as to ensure that the used oil sample can smoothly pass through a filter membrane, separating theoil liquid from the abrasive particles by using a syringe filter, and cleaning a syringe by using kerosene; Step 3, taking the filter membrane out of the syringe filter, preparing a glass slide on the glass slide, dripping two drops of clear solution on the glass slide, and putting the filter membrane on the clear solution to ensure that one surface with the abrasive particles is positioned above; and putting the mixture on a constant-temperature table for drying; and Step 4, observing under a microscope. The technical problem that in the prior art, abrasive particles are connected with one another, and consequently analysis of the abrasive particles is inaccurate is solved.

Description

technical field [0001] The invention belongs to the technical field of oil monitoring, and in particular relates to an off-line abrasive particle extraction method. Background technique [0002] In the field of health status monitoring, oil analysis has been widely used as a popular health status monitoring method in the 21st century. Oil monitoring is mainly divided into two methods: on-line wear monitoring and off-line wear monitoring. [0003] For off-line wear particle monitoring, most current methods use analytical ferrography for off-line analysis. Analytical ferrography mainly uses a magnetic field to deposit ferromagnetic abrasive particles to form a chain of abrasive particles, and then to carry out the analysis on the chain of abrasive particles. The process of analyzing research. However, the formed abrasive grain chain will make the abrasive grains connect and overlap, which seriously affects the research on abrasive grains. Even if the abrasive grain segmentat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00G01N1/34G01N1/40
CPCG01N15/00G01N1/34G01N1/4077G01N2015/0019G01N2001/4088
Inventor 曹蔚张晗王栋苟臻元韩昭闫建颖陈子琦李文辉
Owner XIAN TECHNOLOGICAL UNIV
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