Dynamic hydrogen charging slow tensile test device and method for metal bar-shaped sample

A tensile test, metal rod technology, applied in measuring devices, using stable tension/pressure testing materials strength, instruments, etc., can solve the problems of hydrogen escape, limited hydrogen content, hidden dangers of hydrogen charging, etc. The effect of avoiding hydrogen overflow, good sealing, and avoiding potential safety hazards

Active Publication Date: 2020-10-02
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Aiming at the problems existing in the prior art, the present invention provides a dynamic hydrogen-charging slow tensile test device for metal rod-shaped samples. If there is a problem, keep the seal intact and simulate the actual working conditions to the greatest extent

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  • Dynamic hydrogen charging slow tensile test device and method for metal bar-shaped sample
  • Dynamic hydrogen charging slow tensile test device and method for metal bar-shaped sample

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, where the schematic embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0045] Such as figure 1 , figure 2 As shown, the dynamic electrochemical hydrogen charging test device of this embodiment has an asymmetric structure up and down, and the device includes an electrochemical hydrogen charging device (lead wire 10, DC power supply 11), a liquid carrier (cylindrical container 1, upper sealing cover 6, lower sealing Cover 7) and fixture 9. The present invention is mainly provided with a cylindrical container 1 marked with a scale, two pairs of sealing gaskets 3 (two pairs of upper and lower gaskets), a pair of ordinary metal gaskets 4 (one upper and lower gaskets), and a pair of fastening nuts 5 (one upper and lower gaskets). , a conical rubber stopper 2 with...

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Abstract

The invention discloses a dynamic hydrogen charging slow tensile test device for a metal bar-shaped sample. The device comprises an electrochemical hydrogen charging device, a liquid carrying table, the bar-shaped sample and a clamp. The bar-shaped sample penetrates through the liquid carrying table through the clamp and is fixed, and the electrochemical hydrogen charging device is connected withthe liquid carrying table. A scale distance section and an arc transition section of the bar-shaped sample are positioned in a columnar container, and the scale distance section is immersed in the electrolyte of the columnar container. The problems of hydrogen charging potential safety hazards, limited hydrogen charging content and hydrogen escape are solved. The device has the advantages of beingsimple in structure, easy and convenient to operate, accurate in experiment parameter, good in sealing performance and capable of keeping a complete sealed state and simulating actual working conditions to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of metal dynamic hydrogen-charged slow tensile test, in particular to a dynamic hydrogen-charged slow tensile test device and a test method for a metal rod-shaped sample. Background technique [0002] Hydrogen is the smallest atom in nature, with an atomic mass of about 1.008, ranking first in the periodic table of elements. Hydrogen is the most abundant element in the universe, accounting for about 75% of the mass of the universe. Hydrogen atoms have extremely strong reducing properties. Except for rare gases, hydrogen can react with almost all elements to form compounds. [0003] Hydrogen atoms have the smallest volume, so they can easily pass through various materials, or penetrate into the interior of materials through various channels. [0004] The sources of hydrogen in metals can be divided into two categories: one is internal hydrogen, that is, the hydrogen remaining in the material during metal pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/10G01N3/02
CPCG01N3/08G01N3/10G01N3/02G01N2203/0017G01N2203/0236G01N2203/0266G01N2203/0298
Inventor 宋小龙白锡春骆伟静
Owner XI AN JIAOTONG UNIV
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