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 melts is a major challenge for lead-bismuth fast reactors

Method used

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

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Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0039] The constraint device includes a plurality of isolation rings 3, and the isolation rings 3 can be sleeved on the installation column 1;

[0040] The constraint device also includes a sleeve 2 that can be sleeved on the installation column 1;

[0041] The constraint device further includes a first constraint body arranged at the bottom of the installation column 1 , and the side of the first constraint body protrudes outward relative to the side wall of the installation column 1 .

[0042] The characteristics of the traditional lead-bismuth corrosion test method are as follows: the ceramic crucible is small in volume, and it satisfies a higher surface...

Embodiment 2

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

[0050] The shape of the spacer ring 3 is a stepped shaft with a diameter at one end greater than that of the other end. The spacer ring 3 is also provided with a journal whose length is greater than the thickness of the sample 4 . With this scheme, in specific applications, the sleeve 2 is set to be less than or equal to the length of the journal, and for each sample 4, one end of the sample 4 is constrained by the shaft shoulder, and the sample is constrained by the big end of another spacer ring 3 The other end of 4, through the formation of annular surface contact or annular line contact, in the radial direction of the installation column 1, the anti-lead-bismuth alloy melt infiltration seal of the mating surface between the sample 4 and the spacer ring 3 is realized; at the same time, this According to the scheme, the constraint stability of the device on the sample...

Embodiment 3

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

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

[0059] A second constraining body is ...

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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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