CN112899610A - Zirconium and zirconium alloy hydrogen permeating device - Google Patents

Zirconium and zirconium alloy hydrogen permeating device Download PDF

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Publication number
CN112899610A
CN112899610A CN201911137183.0A CN201911137183A CN112899610A CN 112899610 A CN112899610 A CN 112899610A CN 201911137183 A CN201911137183 A CN 201911137183A CN 112899610 A CN112899610 A CN 112899610A
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CN
China
Prior art keywords
gas
hydrogen
pipe
tube
gas purification
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Pending
Application number
CN201911137183.0A
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Chinese (zh)
Inventor
张天广
李刚
李献军
李恒羽
童龙刚
张梦霓
王家斌
王文倩
李小影
赵旭东
佟昕昕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Nuclear Bao Ti Zirconium Industry Co
State Nuclear Zirconium Phosphate Chemical Testing Co ltd
Original Assignee
State Nuclear Bao Ti Zirconium Industry Co
State Nuclear Zirconium Phosphate Chemical Testing Co ltd
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Publication date
Application filed by State Nuclear Bao Ti Zirconium Industry Co, State Nuclear Zirconium Phosphate Chemical Testing Co ltd filed Critical State Nuclear Bao Ti Zirconium Industry Co
Priority to CN201911137183.0A priority Critical patent/CN112899610A/en
Publication of CN112899610A publication Critical patent/CN112899610A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied

Abstract

The embodiment of the application provides a zirconium and zirconium alloy ooze hydrogen device includes: the gas purification device comprises a gas purification mechanism and a gas purification mechanism, wherein the gas purification mechanism is provided with a gas inlet end and a gas outlet end, the gas inlet end is used for being connected with a gas source, and the gas purification mechanism is used for removing impurities including moisture and oxygen; a hydrogen infiltration pipe having an input end and an output end, the input end being connected with the gas outlet end of the gas purification mechanism; the first heating furnace surrounds the outer part of the hydrogen permeation tube and is used for heating the hydrogen permeation tube; and the pressure gauge is connected with the output end of the hydrogen permeation pipe and is used for measuring the gas pressure passing through the hydrogen permeation pipe. The zirconium and zirconium alloy hydrogen infiltration device of the embodiment of the application can remove impurities, and the hydrogen infiltration effect is ensured.

Description

Zirconium and zirconium alloy hydrogen permeating device
Technical Field
The application belongs to the technical field of research on performance of zirconium and zirconium alloys, and particularly relates to a zirconium and zirconium alloy hydrogen permeating device.
Background
During operation of the reactor, the zirconium alloy cladding will inevitably react with water to form a portion of hydrogen when subjected to high temperature and high pressure water corrosion. Since the solid solubility of hydrogen in α -Zr is low, excess hydrogen will precipitate from the alloy matrix in the form of zirconium hydride. On one hand, the zirconium hydride is precipitated, so that the zirconium matrix is distorted due to the volume expansion of the zirconium hydride to cause stress concentration, and on the other hand, the zirconium hydride is a brittle phase and can obviously reduce the plasticity of the zirconium alloy. These all cause the zirconium alloy cladding to break. Therefore, how to truly reflect the hydride distribution by uniform and stable hydrogen permeation has important significance on the safety of the reactor.
At present, the most common zirconium alloy hydrogen permeation method is autoclave hydrogen permeation, and with the deep research of hydride hydrogen permeation method, gas hydrogen permeation method and equipment are gradually applied. But generally has the problem of poor hydrogen permeation effect.
Disclosure of Invention
The embodiment of the application aims to provide a zirconium and zirconium alloy hydrogen permeating device which is good in hydrogen permeating effect.
The embodiment of the application provides a zirconium and zirconium alloy ooze hydrogen device includes:
the gas purification device comprises a gas purification mechanism and a gas purification mechanism, wherein the gas purification mechanism is provided with a gas inlet end and a gas outlet end, the gas inlet end is used for being connected with a gas source, and the gas purification mechanism is used for removing impurities including moisture and oxygen;
a hydrogen infiltration pipe having an input end and an output end, the input end being connected with the gas outlet end of the gas purification mechanism;
the first heating furnace surrounds the outer part of the hydrogen permeation tube and is used for heating the hydrogen permeation tube;
and the pressure gauge is connected with the output end of the hydrogen permeation pipe and is used for measuring the gas pressure passing through the hydrogen permeation pipe.
Optionally, the gas purification mechanism comprises:
the quartz tube comprises an oxygen removal section and a water removal section, wherein a copper wire is arranged in the oxygen removal section, and magnesium perchlorate is arranged in the water removal section;
and the second heating furnace is sleeved on the oxygen removal section and is used for heating the oxygen removal section.
Optionally, the water removal section is proximate the air intake end relative to the oxygen removal section.
Optionally, the quartz tube includes first quartz tube and second quartz tube, except that the oxygen section is located first quartz tube, except that the water section is located the second quartz tube, first quartz tube with the second quartz tube is through holding the stopper connection.
Optionally, the second heating furnace is a tubular heating furnace.
Optionally, the first heating furnace includes a plurality of mutually independent heating sections along the axial direction of the hydrogen infiltration pipe, each independent heating section has an independent heater and an automatic control system, and the automatic control system controls the corresponding heater to heat.
Optionally, a uniform speed plate and a sample holder are arranged in the hydrogen permeation tube, and the uniform speed plate is close to the input end of the hydrogen permeation tube compared with the sample holder.
Optionally, the hydrogen permeation tube comprises a main tube and a tube cap connected with the main tube, the input end is arranged on the tube cap, the output end is arranged on the main tube, the uniform velocity plate is arranged in the tube cap, and the sample is erected in the main tube.
Optionally, the main tube and the tube cap are sealed by sanding.
Optionally, the uniform speed plate is made of quartz glass, a circular through hole is formed in the uniform speed plate, and the aperture of the through hole is gradually increased from the center of the uniform speed plate to the edge of the uniform speed plate.
Optionally, the center of the uniform speed plate is not provided with a hole; the through holes on the uniform speed plate are distributed in concentric circles.
The embodiment of the application provides a zirconium and zirconium alloy ooze hydrogen device can be used for gaseous infiltration hydrogen tests such as zirconium and zirconium alloy's tubular product, strip, adopts gaseous purification mechanism to get rid of impurity gas, eliminates because of the influence of the problem of air supply to the experiment, has guaranteed to ooze the hydrogen effect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
The summary of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the full scope or all features of the disclosed technology.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain embodiments of the application. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
FIG. 1 is a schematic structural diagram of an embodiment of a zirconium and zirconium alloy hydrogen infiltration apparatus according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram showing an embodiment of a gas purification mechanism in the embodiment of the present application;
FIG. 3 is a schematic structural view showing an embodiment of a quartz tube in the embodiment of the present application;
FIG. 4 is a schematic structural view showing an embodiment of a first heating furnace in the embodiment of the present application;
FIG. 5 is a schematic structural view showing an embodiment of a hydrogen diffusion pipe according to the embodiment of the present application;
fig. 6 shows a schematic structural diagram of an embodiment of the uniform velocity plate in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Detailed descriptions of known functions and known components are omitted in the present application in order to keep the following description of the embodiments of the present application clear and concise.
FIG. 1 is a schematic structural diagram of an embodiment of a zirconium and zirconium alloy hydrogen infiltration device according to an embodiment of the present application. Referring to fig. 1, a zirconium and zirconium alloy hydrogen infiltration device comprises:
the gas purification mechanism 2 is provided with a gas inlet end 211 and a gas outlet end 212, the gas inlet end 211 is connected with the gas source 1, and the gas purification mechanism 2 is used for removing impurities including moisture and oxygen;
a hydrogen permeation tube 4 having an input end 411 and an output end 412, wherein the input end 411 is connected with the gas outlet end 212 of the gas purification mechanism 2;
a first heating furnace 3 surrounding the hydrogen permeation tube 4 and heating the hydrogen permeation tube 4;
and the pressure gauge 5 is connected with the output end of the hydrogen permeation tube 4 and is used for measuring the gas pressure passing through the hydrogen permeation tube 4.
The zirconium and zirconium alloy hydrogen infiltration device that this application embodiment provided can be used for gaseous hydrogen infiltration experiments such as zirconium and zirconium alloy's tubular product, strip, adopts gaseous purification mechanism to get rid of impurity gas, eliminates because of the influence of the problem of air supply to the experiment, has guaranteed the hydrogen infiltration effect.
In some embodiments, the gas purging mechanism includes a quartz tube 21 and a second heating furnace 22. One end of the quartz tube 21 is a gas inlet end 211, the other end is a gas outlet end 212, the quartz tube 21 comprises a deoxidizing section 213 and a water removing section 214, a copper wire is arranged in the deoxidizing section 213, and magnesium perchlorate is arranged in the water removing section 214. The copper wire can remove oxygen and moisture in the gas at high temperature. The magnesium perchlorate can remove water. The copper wire is adopted to remove oxygen, the method is simple, no pollution is caused, and the cost is low. And magnesium perchlorate is adopted to remove water, so that the pores are proper and quartz tubes cannot be blocked.
In some embodiments, oxygen scavenging section 213 is proximate to air intake 211 relative to water scavenging section 214. The heated copper wire reacts with oxygen, so that the oxygen can be removed. The copper wire can also react with water at high temperature to remove moisture. The magnesium perchlorate can remove residual moisture.
In some embodiments, the water removal section 214 is proximate the air intake end 211 relative to the oxygen removal section 213. After the magnesium perchlorate is used for removing water, the high-temperature copper wire is used for removing oxygen.
The second heating furnace 22 is sleeved on the oxygen removing section 213, and the second heating furnace 22 is used for heating the oxygen removing section 213. The second heating furnace 22 is used for heating the oxygen removal section 213, so that the copper wire is combined with oxygen at a high temperature, thereby removing oxygen in the gas and simultaneously removing moisture in the gas. The second heating furnace 22 can heat the copper wire to 500-700 ℃, and the copper wire can react with oxygen in the temperature range, so as to remove oxygen in the gas.
In the embodiment of the application, the purity of the copper wire, the magnesium perchlorate and the like meets the requirement so as not to bring other impurities.
In the embodiment of the present application, the oxygen removing section 213 and the water removing section 214 may be disposed at different positions of a quartz tube, or disposed at different quartz tubes.
In some embodiments, referring to fig. 3, the quartz tube 21 includes a first quartz tube 210 and a second quartz tube 220, the oxygen removing section 213 is disposed on the first quartz tube 210, the water removing section 214 is disposed on the second quartz tube 220, and the first quartz tube 210 and the second quartz tube 220 are connected by an end plug 23. For example, the end plug 23 closes one end of the first quartz tube 210, and the second quartz tube 220 passes through the axial through hole of the end plug 23.
In some embodiments, the second furnace 22 is a tubular furnace. The second heating furnace 22 is preferably a tube type heating furnace for heating the quartz tube 21.
In some embodiments, the first heating furnace 3 comprises a plurality of mutually independent heating sections along the axial direction of the hydrogen infiltration pipe 4, each heating section is provided with an independent heater and an automatic control system, and the automatic control system controls the heating of the corresponding heater. In an exemplary embodiment, the first heating furnace 3 may be a heating furnace including two heating sections, 3 heating sections, or more heating sections. The multi-section temperature control furnace is adopted to realize automation, temperature rise, temperature measurement and temperature control, the length of a uniform temperature zone is effectively increased, the sufficient test space of the hydrogen permeation test is ensured, the temperature control precision is improved, and the test is efficiently completed. For example, the first heating furnace 3 is divided into three heating sections for respective temperature control, each heating section has an independent heater and a corresponding automatic control system, and the automatic control system controls the heaters of the heating sections to heat according to the detected temperature of the corresponding heating section. The length of a temperature equalizing zone at +/-5 ℃ can be ensured to exceed 250mm, the sufficient test space of the hydrogen permeation test is ensured, and the temperature control automation and the temperature precision are ensured.
In some embodiments, a uniform speed plate 6 is arranged in the hydrogen permeating pipe 4. The uniform speed plate 6 is arranged close to the input end 411 of the hydrogen permeating pipe 4. Referring to fig. 6, the uniform velocity plate 6 is provided with through holes 61, which can adjust the velocity of the gas on the cross section of the hydrogen permeating tube 4 to be uniform. The uniform speed plate 6 can ensure that the atmosphere is uniformly distributed in the hydrogen permeating tube 4, thereby ensuring that the sample has uniform hydrogen permeation.
In some embodiments, a sample holder 7 is further disposed in the hydrogen permeation tube 4. The uniform speed plate 6 is close to the input end 411 of the hydrogen permeation tube 4 compared with the sample holder 7. Gas enters the hydrogen permeation tube 4 through the input end 411, the gas flow rates of different positions in the hydrogen permeation tube are different, and after passing through the uniform-speed plate 6, the gas flow rates are basically consistent, so that the gas atmosphere of the area where the sample holder 7 is located is uniform, and the sample on the sample holder is uniformly permeated with hydrogen.
In some embodiments, the uniform velocity plate 6 is made of quartz glass. The uniform speed plate 6 is made of quartz glass, can bear the high temperature in the hydrogen infiltration process, and avoids bringing other impurities. The aperture of the through hole 61 on the uniform speed plate 6 is gradually increased from the center to the edge of the uniform speed plate 6. In the exemplary embodiment, the through holes on the uniform velocity plate 6 are circular through holes.
In some embodiments, the through holes 61 on the uniform velocity plate 6 are distributed in concentric circles. The center of the uniform speed plate 6 is not provided with a hole.
In some embodiments, the hydrogen infiltration pipe 4 comprises a main pipe 414 and a pipe cap 413 connected with the main pipe 414, wherein the input end 411 is arranged on the pipe cap 413, and the output end 412 is arranged on the main pipe 414. In the exemplary embodiment, the uniform velocity plate 6 is disposed within the tube cap 413 and the sample holder 7 is disposed within the main tube 414. The sample can be conveniently put in and taken out.
In the embodiment of the present application, the main tube 414 and the tube cap 413 are hermetically connected. In the exemplary embodiment, the seal between main tube 414 and cap 413 is frosted.
In some embodiments, the sample holder 7 comprises a circular quartz plate and a quartz rod perpendicularly attached to the quartz plate. The sample may be hung on a quartz rod.
The operation of the hydrogen permeation mechanism of the present application will be described below.
6 zirconium alloy samples were placed on the sample holder 7. The gas source 1 (for example, a gas cylinder) is connected with the gas purification mechanism 2 through a pipeline and is used for removing impurity gases such as oxygen, moisture and the like in the gas source. The oxygen removing section 213 of the quartz tube 21 of the gas purification mechanism 2 is provided with a high-purity copper wire inside, and the water removing section 214 is provided with magnesium perchlorate inside. The working temperature of the second heating furnace 22 is 630 ℃, and the second heating furnace is used for heating the copper wire to remove oxygen and moisture in the gas; magnesium perchlorate is used to remove residual moisture.
The first heating furnace 3 is a box-type heating furnace and is divided into three sections for heating, temperature measurement and temperature control, the temperature is set to be 400 ℃, and the temperature of the three sections fluctuates between 398 ℃ and 402 ℃; the length of the homogeneous temperature zone is actually measured to be 290 mm.
The gas with impurities removed by the gas purification mechanism 2 enters the hydrogen infiltration pipe 4; after passing through the uniform speed plate 6, the gas flow rate is basically consistent; the sample holder 7 is placed in the uniform temperature area of the hydrogen permeation tube. The gas passing through the hydrogen permeation tube 4 is discharged from the output end 412. The pressure gauge 5 is connected to the output end 412 through a pipe for measuring the pressure of the gas passing through the hydrogen permeation tube 4. The gas may be discharged to the outside of the room through a pipe.
The hydrogen content of 6 samples was measured as follows: 0.0208 wt%, 0.0215 wt%, 0.0201 wt%, 0.0209 wt%, 0.0213 wt%, 0.0206 wt%. It can be seen that the hydrogen infiltration device of the embodiment of the application powerfully guarantees the uniformity and the precision of hydrogen infiltration.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other, and it is contemplated that the embodiments may be combined with each other in various combinations or permutations. The scope of the application should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

Claims (10)

1. A zirconium and zirconium alloy hydriding device comprising:
the gas purification device comprises a gas purification mechanism and a gas purification mechanism, wherein the gas purification mechanism is provided with a gas inlet end and a gas outlet end, the gas inlet end is used for being connected with a gas source, and the gas purification mechanism is used for removing impurities including moisture and oxygen;
a hydrogen infiltration pipe having an input end and an output end, the input end being connected with the gas outlet end of the gas purification mechanism;
the first heating furnace surrounds the outer part of the hydrogen permeation tube and is used for heating the hydrogen permeation tube;
and the pressure gauge is connected with the output end of the hydrogen permeation pipe and is used for measuring the gas pressure passing through the hydrogen permeation pipe.
2. The apparatus of claim 1, wherein the gas purification mechanism comprises:
the quartz tube comprises an oxygen removal section and a water removal section, wherein a copper wire is arranged in the oxygen removal section, and magnesium perchlorate is arranged in the water removal section;
and the second heating furnace is sleeved on the oxygen removal section and is used for heating the oxygen removal section.
3. The apparatus according to claim 2, wherein the quartz tube comprises a first quartz tube and a second quartz tube, the oxygen removing section is arranged on the first quartz tube, the water removing section is arranged on the second quartz tube, and the first quartz tube and the second quartz tube are connected through an end plug;
the water removal section is proximate the air intake end relative to the oxygen removal section.
4. The apparatus according to claim 2, wherein said second furnace is a tube furnace.
5. The apparatus of claim 1, wherein said first heating furnace comprises a plurality of mutually independent heating sections along the axial direction of said infiltration pipe, each heating section having an independent heater and an automatic control system, said automatic control system controlling the heating of the corresponding heater.
6. The device according to claim 1, wherein the hydrogen infiltration pipe is internally provided with a uniform speed plate and a sample rack, and the uniform speed plate is closer to the input end of the hydrogen infiltration pipe than the sample rack.
7. The device of claim 6, wherein the hydrogen infiltration pipe comprises a main pipe and a pipe cap connected with the main pipe, the input end is arranged on the pipe cap, the output end is arranged on the main pipe, the uniform velocity plate is arranged in the pipe cap, and the sample is erected in the main pipe.
8. The device of claim 7, wherein the main tube and the tube cap are frosted sealed therebetween.
9. The device as claimed in claim 6, wherein the uniform velocity plate is made of quartz glass, the uniform velocity plate is provided with a circular through hole, and the aperture of the through hole is gradually increased from the center to the edge of the uniform velocity plate.
10. The device of claim 9, wherein the center of the uniform velocity plate is not perforated; the through holes on the uniform speed plate are distributed in concentric circles.
CN201911137183.0A 2019-11-19 2019-11-19 Zirconium and zirconium alloy hydrogen permeating device Pending CN112899610A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192175A (en) * 1978-03-03 1980-03-11 Kobe Steel, Ltd. Process and apparatus for measurement of diffusible hydrogen
KR20050081965A (en) * 2004-02-17 2005-08-22 이병철 Film type moisture and oxygen getter body for enclosed electronic devices and production method of the same
CN201525884U (en) * 2009-04-30 2010-07-14 上海大学 Plate type gas distributing device
CN108515187A (en) * 2018-05-17 2018-09-11 四川大学 A kind of zirconium and the method for zircaloy hydrogenation process optimization
CN109975479A (en) * 2017-12-28 2019-07-05 中核建中核燃料元件有限公司 A kind of Gaseous hydrogenation device for the measurement of zirconium alloy pipe hydride orientation factor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192175A (en) * 1978-03-03 1980-03-11 Kobe Steel, Ltd. Process and apparatus for measurement of diffusible hydrogen
KR20050081965A (en) * 2004-02-17 2005-08-22 이병철 Film type moisture and oxygen getter body for enclosed electronic devices and production method of the same
CN201525884U (en) * 2009-04-30 2010-07-14 上海大学 Plate type gas distributing device
CN109975479A (en) * 2017-12-28 2019-07-05 中核建中核燃料元件有限公司 A kind of Gaseous hydrogenation device for the measurement of zirconium alloy pipe hydride orientation factor
CN108515187A (en) * 2018-05-17 2018-09-11 四川大学 A kind of zirconium and the method for zircaloy hydrogenation process optimization

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
潘峰, 张少卿, 薛志庠, 王定华: "铸造Ti-6Al-4V合金氢化特征的研究", 特种铸造及有色合金, no. 01, 31 December 1986 (1986-12-31), pages 21 - 23 *

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