Sample mounting device and method for lead-bismuth alloy melt corrosion test

A lead-bismuth alloy and corrosion test technology, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., to achieve the effect of reducing the minimum thickness, reducing the exposed area of ​​the sample, and improving the ability of the immersion test

Active Publication Date: 2020-02-11
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corrosion of materials in high-temperature lead-bismuth

Method used

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  • Sample mounting device and method for lead-bismuth alloy melt corrosion test

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1:

[0038] Such as figure 1 As shown, a sample mounting device for lead-bismuth alloy melt corrosion test, the mounting device includes a mounting post 1 for mounting the sample 4, and also includes a mounting post 1 for mounting the sample 4 on the axis of the mounting post 1 Position restraint restraint device;

[0039] The restraint device includes a plurality of isolation rings 3, and the isolation rings 3 can be sleeved on the mounting post 1;

[0040] The restraint device also includes a sleeve 2 that can be sleeved on the mounting post 1;

[0041] The restraining device further includes a first restraining body arranged at the bottom end of the mounting column 1, and the side surface of the first restraining body is convex relative to the side wall of the mounting column 1.

[0042] The characteristics of the traditional lead-bismuth corrosion test method are as follows: The ceramic crucible has a small volume and satisfies a higher surface dissolution ratio (th...

Example Embodiment

[0048] Example 2:

[0049] Such as figure 1 As shown, this embodiment is further limited on the basis of Embodiment 1:

[0050] The outer shape of the isolating ring 3 is a stepped shaft with a diameter at one end greater than the diameter of the other end, and a journal with a length greater than the thickness of the sample 4 is also provided on the isolating ring 3. With this solution, in specific applications, the sleeve 2 is set to be less than or equal to the length of the journal. For each sample 4, one end of the sample 4 is restrained by the shoulder and the larger end of the other spacer ring 3 is used to restrain the sample. At the other end of 4, through the formation of annular surface contact or annular line contact, in the radial direction of the mounting column 1, the lead-bismuth alloy melt-proof sealing of the mating surface between the sample 4 and the isolating ring 3 is achieved; at the same time, this In the solution, the restraint of the inside of the hole o...

Example Embodiment

[0055] Example 3:

[0056] Such as figure 1 As shown, this embodiment is further limited on the basis of any one of the technical solutions provided in Embodiment 1 or 2:

[0057] This embodiment discloses a method for installing sample 4 for lead-bismuth alloy melt corrosion test. The installation device described in any one of the above is adopted to realize the installation of sample 4 on the mounting post 1. The spacer ring 3, the sample 4, and the sleeve 2 are all sleeved on the mounting column 1, and a sample 4 is clamped between adjacent spacer rings 3. The upper side of the upper isolation ring 3 has a sleeve 2 in contact with the upper end of the isolation ring 3;

[0058] The upper end surface of the first constraining body is used to constrain the lowest position of the layer structure formed by the casing 2, the isolation ring 3, and the sample 4 on the axis of the mounting column 1;

[0059] It also includes a second constraining body for applying downward pressure to t...

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Abstract

The invention discloses a sample mounting device and method for lead-bismuth alloy melt corrosion test. The mounting device comprises an installation column for installing a sample and a limiting device for limiting the position of the sample in the axis of the installation column. The limiting device comprises isolating rings that can sleeve the installation column, a bushing that can sleeve theinstallation column, and a first limiting body arranged at the bottom end of the installation column, and the side surface of the first limiting body is protruded relative to the sidewall of the installation column. The mounting method is realized on the basis of the mounting device. According to the mounting device and method, the corrosion test efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of lead-bismuth fast reactor material corrosion tests, in particular to a sample installation device and method for lead-bismuth alloy melt corrosion tests. Background technique [0002] The lead-bismuth fast reactor is the fourth generation reactor. Corrosion of materials in high-temperature lead-bismuth melts is a major challenge for lead-bismuth fast reactors. At present, the corrosion behavior of materials in the environment of lead-bismuth reactors is usually studied by immersing candidate materials for a long time in a test tank containing high-temperature lead-bismuth melt. [0003] The immersion test device usually has the following characteristics: the test kettle is usually lined with a small container ceramic crucible (such as 1-2L), to ensure that the test kettle is not corroded and the ceramic crucible does not break during heating, cooling and long-term heat preservation; The sample is usuall...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 肖军刘超红孙永铎邱绍宇卓洪王辉
Owner NUCLEAR POWER INSTITUTE OF CHINA
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