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Device and method of measuring infiltration performance of porous metal material on the basis of digital image processing

A technology of porous metals and measuring devices, applied in measuring devices, analytical materials, instruments, etc., can solve the problem of inability to quantitatively evaluate the infiltration uniformity, and it is difficult to realize the comprehensive, accurate and quantitative research on the infiltration performance of porous media materials, which cannot be comprehensive Reflect the infiltration quality of porous media materials and other problems, and achieve the effect of solving incomplete measurement results

Inactive Publication Date: 2015-11-11
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

This method can reflect the wettability of porous media materials to a certain extent, but cannot quantitatively evaluate its wettability uniformity, so it cannot fully reflect the wettability quality of porous media materials
It can be seen from the above that the existing test methods are difficult to achieve comprehensive, accurate and quantitative research on the wetting properties of porous media materials.

Method used

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  • Device and method of measuring infiltration performance of porous metal material on the basis of digital image processing
  • Device and method of measuring infiltration performance of porous metal material on the basis of digital image processing
  • Device and method of measuring infiltration performance of porous metal material on the basis of digital image processing

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Embodiment Construction

[0035] Combine below Figures 1 to 11 Specific embodiments will further specifically describe the present invention in detail.

[0036] (1) prepare two kinds of electrodeposited porous copper films with different process parameters, and their process parameters are respectively:

[0037] figure 2 In, A sample: current density 0.1A / cm 2 , deposition time 150s;

[0038] image 3 Middle, B samples: current density 1A / cm 2 , deposition time 15s;

[0039] (2) Select respectively figure 2 and image 3 Samples A and B in the sample were placed on the ultra-depth-of-field microscope workbench, and the focal length was adjusted to obtain a clear magnified image. The pictures were taken and the image magnification was recorded. The diffusion process of liquid droplets on different samples is recorded on the depth-of-field microscope, the recording time is 10s, the video sampling frequency is 28 frames / s, and the operating temperature is 21°C;

[0040] (3) Continuously capture...

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Abstract

The invention discloses a device and a method of measuring an infiltration performance of a porous metal material on the basis of digital image processing. In the invention, a diffusion process of a drop on the porous metal material by a super depth microscope is recorded, and then the monitored record is processed to quantitatively obtain drop diffusion edge and diffusion speed. When the drop is diffused on the porous metal material, the image pixels of a diffusion zone image is changed through comparison with a background image, so that the drop diffusion process and the drop diffusion zone edge are accurately obtained through the digital image processing and further drop diffusion diameter and drop diffusion rate are quantitatively calculated, thereby solving a problem that the drop diffusion zone edge is fuzzy and is difficult to position in a liquid dropping observation method. The device and the method are especially suitable for diffusion of a transparent liquid work medium and provide reliable measurement of testing and evaluating the infiltration performance of the porous metal material. The method also can be developed and used in the fields of tests of infiltration performances of other porous medium materials.

Description

technical field [0001] The invention relates to the measurement of the wetting performance of metal materials, in particular to a device and method for measuring the wetting performance of porous metal materials based on digital image processing. Background technique [0002] Porous metal materials are metal materials with a large number of directional or random pores dispersed inside. Because of their high specific surface area, good thermal conductivity and electrical conductivity, they are widely used in aerospace, transportation, construction, engineering, mechanical engineering Chemical engineering, environmental protection engineering and many other fields. Wettability is one of the key indicators of porous metal materials, which has an important impact on the law of fluid movement in porous metal materials and related production processes. [0003] Usually, the wetting performance is judged by measuring the spread of liquid working fluid droplets on porous media mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/00
Inventor 陆龙生张宾侯朝睿缪利梅汤勇
Owner SOUTH CHINA UNIV OF TECH
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