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Sample holder for high-temperature oxidation corrosion test and preparation method thereof

A corrosion test and high-temperature oxidation technology, applied in weather resistance/light resistance/corrosion resistance, instruments, measuring devices, etc., can solve the problems of not being able to use for a long time, test sample contamination, and no sample holder, etc., to save costs and avoid Effects that influence each other and increase intensity

Pending Publication Date: 2022-02-01
HUANENG POWER INTERNATIONAL +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

At present, many scientific research institutes at home and abroad have developed steam oxidation test equipment, but there is no sample rack specially suitable for high temperature oxidation corrosion test. The sample rack used will pollute the test sample after oxidation or corrosion, and will not Can be used for a long time

Method used

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  • Sample holder for high-temperature oxidation corrosion test and preparation method thereof

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] see figure 1 , a kind of sample holder for high temperature oxidation corrosion test provided by the present invention, comprises quartz boat body 1, hanging rod 2, anti-slip ring 3 and pull ring 4, wherein: the two ends of quartz boat body 1 are open, quartz boat body 1 The top is provided with a plurality of hanging rods 2 along the width direction for hanging the samples, and a plurality of anti-slip rings 3 are arranged on the hanging rods 2 along its length direction to prevent the samples from moving back and forth and avoid mutual influence between the samples. Quartz Two ends of the boat body 1 are respectively provided with a pull ring 4 .

[0027] Preferably, the body of the quartz boat is semi-cylindrical, with openings at both ends of the cylinder, and a wall thickness of 2-5 mm.

[0028] Preferably, the number of hanging r...

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Abstract

The invention discloses a sample holder for a high-temperature oxidation corrosion test and a preparation method thereof. The sample holder comprises a quartz boat body with openings at two ends, a plurality of hanging rods are arranged side by side at the top of the quartz boat body along the width direction, a plurality of non-slip rings are arranged on the hanging rods along the length direction, and a pull ring is arranged at each of the two ends of the quartz boat body. The sample holder is made of quartz, the preparation process is combined with the welding and annealing treatment technology, the strength of the sample holder can be improved, the sample holder can be used for a high-temperature oxidation / corrosion test, the one-time lofting number can be increased, then the test efficiency is improved, mutual influence between samples is avoided, and experimental errors are reduced.

Description

technical field [0001] The invention belongs to the technical field of material oxidation corrosion, in particular to a sample rack for high temperature oxidation corrosion test and a preparation method thereof. Background technique [0002] Among the failure causes of the "four tubes" of high-parameter power plant boilers, the flue gas corrosion caused by pulverized coal combustion on the outside of the furnace tube and the oxidation corrosion of high-temperature steam inside the furnace tube play an important role, which is also one of the essential causes of boiler explosion and leakage accidents. The flue gas corrosion of the heating surface includes high temperature corrosion and low temperature corrosion. The sulfur in the flue gas forms compound sulfate with the liquid ash and iron oxide on the tube wall of the superheater and reheater, and there is a strong reducing atmosphere in the vicinity of the burner, so that sulfur can exist alone in the atomic state, so that ...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 周永莉袁勇谷月峰鲁金涛杨珍黄锦阳党莹樱严靖博张鹏尹宏飞李沛刘鹏
Owner HUANENG POWER INTERNATIONAL
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