Jet type slurry erosion wear testing device and testing method thereof

A technology of wear test and test method, which is applied in the direction of measuring device, test wear resistance, instrument, etc., which can solve the problems of difficult control of coating flatness and large size

Pending Publication Date: 2017-08-25
安徽威龙再制造科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems in the prior art that the size of the coating material sample library is large and the flatness of the coating is

Method used

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  • Jet type slurry erosion wear testing device and testing method thereof
  • Jet type slurry erosion wear testing device and testing method thereof
  • Jet type slurry erosion wear testing device and testing method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0065] A kind of jet type slurry erosion wear test device of the present embodiment, such as figure 1 As shown, it consists of a compressed air auxiliary power mechanism, a sample erosion mechanism and a slurry supply mechanism. The compressed air auxiliary power mechanism includes a compressed gas tank 2; the sample erosion mechanism includes a nozzle 1 and a sample chamber 3; The slurry supply mechanism includes a slurry tank 6 and a grinding liquid pump 10 communicated through pipelines; the compressed gas tank 2 communicates with the nozzle 1 through an air pipe; the grinding liquid pump 10 communicates with the nozzle 1 through a grinding liquid pipe; the The sample chamber 3 has a built-in sample 4, the nozzle 1 is inserted into the sample chamber 3, and the mouth of the nozzle 1 faces the sample 4; the slurry tank 6 has a built-in stirrer 5, and the stirring blade 8 on the stirrer 5 extends into the To the bottom of the slurry tank 6 to ensure the uniformity of the slur...

Embodiment 2

[0073] A kind of jet type slurry erosion wear test device of the present embodiment, the basic structure is the same as that of embodiment 1, the differences and improvements are: the nozzle 1, the air pipe and the grinding liquid pipe are connected together through a three-way pipe; the grinding liquid pipe and The nozzles 1 are all connected with a pressure gauge 9 to display the flow rate of the slurry, and then the flow rate of the slurry can be controlled by adjusting the power of the grinding liquid pump. The bottom of the sample chamber 3 communicates with the slurry tank 6 through an external return pipe 7, and the slurry is recycled to avoid waste and environmental pollution.

[0074] The test method of a jet type slurry erosion wear test device of the present embodiment, the steps are:

[0075] A. Fix sample 4: fixed sample 4 is facing the nozzle 1;

[0076] B, start stirring: start the agitator 5, and stir the slurry in the slurry tank 6 evenly;

[0077] C. Start ...

Embodiment 3

[0080] A kind of jet type slurry erosion wear test device of this embodiment, the basic structure is the same as that of embodiment 2, the differences and improvements are as follows: figure 2 As shown, the nozzle 1 has a Venturi nozzle structure; the port is a plurality of nozzles 11, the throat is connected to the compressed air inlet 12, and the slurry channel 14 at the tail is connected to the grinding liquid pipe; the air inlet pipe of the compressed air inlet 12 is connected to the gas pressure regulator valve 13. The conical inlet of the Venturi nozzle structure has a certain clustering effect, and the throat design can enhance the erosion ability of the slurry, and can also make its distribution on the nozzle 1 section more uniform. The slurry is pumped into the pipeline by the grinding liquid pump 10. Before entering the nozzle 1, the compressed air enters through the compressed air inlet 12 to generate turbulent diffusion in the boundary layer, and exchange energy a...

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Abstract

The invention discloses a jet type slurry erosion wear testing device and a testing method thereof, and belongs to the technical field of erosion wear testing. The testing device comprises a compressed air assistant power mechanism, a test sample erosion mechanism and a slurry supply mechanism, wherein the compressed air assistant power mechanism comprises a compressed air tank; the test sample erosion mechanism comprises nozzles and a test sample chamber; the slurry supply mechanism comprises a slurry tank and a grinding fluid pump which are communicated through a pipeline; the compressed air tank is communicated with the nozzles through an air pipe; the grinding fluid pump is communicated with the nozzles through a grinding fluid pipe; a test sample is arranged in the test sample chamber, the nozzles are inserted into the test sample chamber, and nozzle openings directly face the test sample. According to the device, slurry is adopted for grinding, the grinding fluid pump is taken as output power, compressed air is taken as supplementary power, so that large-range regulation of erosion slurry speed can be realized, and simulation and detection of a specific service condition are facilitated. The problems that a coating material sample chamber is large in size and coating flatness is difficult to control during erosion wear testing are solved.

Description

technical field [0001] The invention relates to the technical field of erosion and wear tests, in particular to a jet-type slurry erosion and wear test device and a test method thereof. Background technique [0002] Wear is one of the three main causes of failure of metal parts (wear, corrosion and fatigue). The economic loss it causes is very huge, such as the figure announced by the United States in 1981, the annual loss due to wear and tear is as high as 100 billion US dollars. Among them, the material consumption is about 20 billion US dollars, which is equivalent to 7% of the annual output of materials. Due to the poor wear resistance of materials, the lost life of a large number of basic parts in my country is generally much lower than that of foreign advanced products, so the direct and indirect economic losses are also very alarming. According to the incomplete statistics of the five industrial sectors of metallurgy, mining, agricultural machinery, coal, electric p...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/56
CPCG01N3/02G01N3/567
Inventor 凤国保李志忠
Owner 安徽威龙再制造科技股份有限公司
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