High-flux evaluation device and method based on erosive wear performance of composite material

A composite material and wear performance technology, which is applied in the direction of measuring devices, analyzing materials, testing wear resistance, etc., can solve the problems that affect the development speed and popularization and application of erosion-resistant materials, low efficiency, and long test cycle, so as to shorten the detection period And the effect of R&D speed and high reliability

Inactive Publication Date: 2021-04-02
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods for evaluating the erosion and wear properties of materials have shortcomings such as long test period, poor applicability, and low efficiency, which greatly affect the development speed and popularization and application of erosion-resistant materials.

Method used

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  • High-flux evaluation device and method based on erosive wear performance of composite material
  • High-flux evaluation device and method based on erosive wear performance of composite material
  • High-flux evaluation device and method based on erosive wear performance of composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] 1) Put the sample to be tested into the erosion fixture, select the fixture to fix the sample, and set the erosion angles to 3 groups of 0°, 15°, 30°, 45°, 60°, 75°, and 90° respectively, Install each set of fixtures on 6 sets of fixtures, and connect the sample to the electrochemical measurement system with a test line;

[0058] 2) Prepare alkaline erosion solution components, pH = 10, use 50 mesh SiO 2 Granules, the solid mass fraction accounts for 10%, inject the erosion liquid components into the test chamber;

[0059] 3) Set the erosion rate of the rotating spindle to 800r / min, the test temperature to 25°C, and the test time to 20h, in which a group of samples is taken out every 20 hours for analysis and evaluation.

[0060] After the test, the wear conditions of the samples with different erosion angles and different erosion times were measured with a high-precision analytical balance, and the laser confocal profiler was used to quickly observe the erosion morpho...

Embodiment 2

[0062] 1) First of all, put the sample to be tested for scouring and wear performance into the erosion fixture, select the fixture for sample rotation, the erosion angle is 30°, load 12 groups of samples, and install the fixture on the rotating spindle ;

[0063] 2) Next, prepare the acidic erosion liquid components, pH = 4, use 30 mesh SiC particles, the solid mass fraction accounts for 5%, and inject the erosion liquid components into the test chamber of the erosion wear performance testing device;

[0064] 3) Set the erosion rate to 1000r / min, the test temperature to 30°C, and the test time to 5×12h, in which a group of samples is taken out every 5 hours for analysis and evaluation.

[0065] After the test, the wear of the samples with different erosion times was measured using a high-precision analytical balance, and the laser confocal profiler was used to quickly observe the erosion morphology and degree. As well as scanning electron microscopy to observe the morphology ...

Embodiment 3

[0067] Put the sample to be tested into the erosion fixture, select the fixture to fix the sample, and the erosion angle is 0°, 30°, 60°, 90° in 4 groups, and install each set of fixtures to 6 sets of fixing frames Connect the sample to the electrochemical measurement system with a test line;

[0068] 2) Prepare acidic erosion solution components, pH = 3, use 20 mesh Al 2 o 3 Granules, the solid mass fraction accounts for 15%, inject the erosion liquid components into the test chamber;

[0069] 3) Set the erosion rate of the rotating spindle to 1500r / min, the test temperature to 45°C, and the total test time to 40h, in which a group of samples is taken out every 10 hours for analysis and evaluation.

[0070] After the test, the wear conditions of the samples with different erosion angles and different erosion times were measured with a high-precision analytical balance, and the laser confocal profiler was used to quickly observe the erosion morphology and degree. As well as...

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Abstract

The invention discloses a high-flux evaluation device and method based on erosive wear performance of a composite material, and the method comprises the steps of: loading a to-be-tested static test sample and a to-be-tested moving test sample into an erosion clamp, installing the erosion clamp into a test cabin, and enabling the static test sample to be connected with an electrochemical measurement system; preparing an erosion liquid component, and injecting the erosion liquid component into a test bin; and setting the erosion rate of a rotating main shaft, the temperature of the test bin andthe test time, performing testing by using an electrochemical measurement system, and evaluating the erosive wear performance of the composite material according to the wear conditions, the erosion morphology and the degree of the samples at different erosion angles. The method has a considerable application prospect in rapid, systematic and high-throughput evaluation of the erosive wear performance of the composite material and research of an erosive wear mechanism, the research and development speed of an erosion-resistant material is rapidly increased, and the research and development period is shortened.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant material testing, and in particular relates to a high-throughput evaluation device and method based on the scouring wear performance of composite materials. Background technique [0002] Erosion wear widely exists in various working conditions such as petrochemical, machinery, energy, metallurgy, building materials, aerospace, etc. It refers to the impact of small liquid or solid particles on the material surface at a certain speed or angle and accompanied by certain corrosion. The loss phenomenon caused by materials is an important reason for material damage and equipment failure. [0003] There are many factors affecting erosion wear, including material intrinsic factors and environmental factors. Environmental factors include impact angle, impact velocity, particle size, particle hardness, medium properties, and erosion time. At present, the methods for evaluating the erosion wear perfo...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N3/04
CPCG01N3/04G01N3/567
Inventor 郑巧玲白雪李烨飞李海生李书文牛瑞霞赵四勇
Owner XI AN JIAOTONG UNIV
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