CN105954114A - Testing device for stress corrosion creep durability of single-reactor corrugated pipe - Google Patents
Testing device for stress corrosion creep durability of single-reactor corrugated pipe Download PDFInfo
- Publication number
- CN105954114A CN105954114A CN201610503704.XA CN201610503704A CN105954114A CN 105954114 A CN105954114 A CN 105954114A CN 201610503704 A CN201610503704 A CN 201610503704A CN 105954114 A CN105954114 A CN 105954114A
- Authority
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- China
- Prior art keywords
- flange
- corrugated tube
- reactor
- test
- kettle
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- 238000012360 testing method Methods 0.000 title claims abstract description 71
- 230000007797 corrosion Effects 0.000 title claims abstract description 17
- 238000005260 corrosion Methods 0.000 title claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005580 one pot reaction Methods 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 2
- 230000035882 stress Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a testing device for the stress corrosion creep durability of a single-reactor corrugated pipe. A reactor cover, a vertical column and an upper frame plate are fixedly connected with a frame; the corrugated pipe is detachably fixed between the reactor cover and a testing reactor in a sealing manner; a graphite crucible is used for containing solid state fused salt for testing and is detachably arranged in the testing reactor; the upper end of a counter-force column penetrates through a flange and is fixed on the reactor cover; the lower end of the counter-force column penetrates through the corrugated pipe and the flange sequentially, extends into the testing reactor and is fixed on a fixed plate; the upper end of a pull rod is connected with a loading device; the lower end of the pull rod penetrates through the reactor cover, the flange and the corrugated pipe sequentially, extends to the testing reactor, and is connected with an upper clamp; a lower clamp is fixed on the fixed plate; the loading device applies tension required by testing to a sample through the pull rod; the sample is detachably fixed between the upper clamp and the lower clamp. The device replaces the original double-reactor structure through a mode of effectively combining the testing reactor and the corrugated pipe, and effectively solves the problem that the solid state fused salt leaves in a salt conveying pipeline and cannot be taken out.
Description
Technical field
The present invention relates to a kind of material testing apparatus, hold particularly to a kind of one-pot corrugated tube stress corrosion creep
Assay device for a long time.
Background technology
Machine components are under some special Service Environment, and its service life is often unable to reach expected effect,
Its main cause is, material, under the common effect of stress and special environment, is susceptible to stress corrosion and loses
Effect.Material mechanical performance in particular circumstances utilizes stress corrosion (cracking) test machine to be measured by test,
Its test method can refer to standard HB 7235-1995 " slow-drawing stress corrosion test method ".
Under normal circumstances, special environment medium required in test kettle in stress corrosion (cracking) test machine, is all in examination
After testing still installation, then injected in still from extraneous.Fused salt under standard temperature and atmospheric pressure in solid-state,
Temperature becomes liquid after raising, and thus material stress corrosion (cracking) test under liquid fused salt is added difficulty,
Figure below is the assay device using traditional approach to inject fused-salt medium.Fused salt environmental stress corrosion testing machine at present
The mode using storage salt oven and test kettle to combine is tested, but owing to this pair of still is required for elevated-temperature seal,
Structure is complicated, and equipment cost is high, and simultaneously after off-test, solid-state fused salt easily remains in salt conveying pipeline,
It is not easily taken out.
Summary of the invention
In order to solve to be not easily taken out of problem in solid-state fused salt easily remains in salt conveying pipeline in existing testing machine, this
Invention is a kind of one-pot corrugated tube stress corrosion creep and stress rupture test machine.
It is an object of the invention to be achieved through the following technical solutions:
A kind of one-pot corrugated tube stress corrosion creep and stress rupture test device, including kettle cover, described kettle cover, column
Being fixedly connected in frame with upper frame plate, described kettle cover, corrugated tube and test kettle are connected to one another at by flange
Together；Counter-force post upper end is fixed on described kettle cover through flange, and lower end sequentially passes through described corrugated tube and method
Orchid, extends to be fixed in fixed plate in described test kettle；Graphite crucible melts for the solid-state holding test
Salt, and be removably disposed in described test kettle；Pull bar upper end is connected with the charger of sample, and lower end depends on
Secondary through described kettle cover, flange and corrugated tube, extend to be connected with upper fixture in test kettle, described lower clamp
It is fixed in fixed plate；Described charger applies the pulling force needed for test, institute by pull bar to described sample
State sample to be removably attached between fixture and lower clamp.
Further, the flange between described kettle cover and corrugated tube is monolayer, for corrugated tube upper flange；Described
Flange between corrugated tube and test kettle is double-deck, respectively corrugated tube lower flange and still flange, both it
Between be removably sealed connected together.
Further, when the fused salt in described graphite crucible is solid-state, described sample and lower clamp are in described molten
On salt；When fused salt in described graphite crucible is liquid, compress/stretch described corrugated tube by electric pushrod,
So that described sample and lower clamp are immersed in liquid fused salt or from liquid by described test kettle relative to Up/Down
State fused salt separates.
Further, the air locking between described still flange and corrugated tube lower flange is carbon seal ring.
Useful the having the technical effect that of the present invention
This device utilize corrugated tube Telescopic can under the conditions of elevated-temperature seal separating clamp and liquid fused salt,
The mode utilizing test kettle to be effectively combined with corrugated tube substitutes original pair of still structure, eliminates storage salt oven and defeated
Salt pipeline, the problem cannot taken out in effectively solving solidification fused salt residual salt conveying pipeline.
Accompanying drawing explanation
Fig. 1 is existing pair of still testing machine structure schematic diagram；
Fig. 2 is testing machine structure schematic diagram of the present invention；
Wherein, 1-lower clamp, 2-fixed plate, 3-sample, the upper fixture of 4-, 5-graphite crucible, 6-counter-force post,
7-test kettle, 8-pull bar, 9-still flange, 10-corrugated tube lower flange, 11-corrugated tube, 12-corrugated tube upper flange,
13-kettle cover, 14-column, the upper frame plate of 15-, the moveable dolly of 16-, 17-stores up salt oven, 18-salt conveying pipeline,
19-test kettle, 20-test fixture, 21-frame, 22-lifting device.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the invention are elaborated.
Fig. 1 is existing pair of still testing machine structure schematic diagram, and this structure is current fused salt environmental stress corrosion testing
A kind of version of machine, comprises storage salt oven 17 and test kettle 19 in this device, fused salt is in storage salt oven 17
After heating and melting, then being injected in test kettle 19 by salt conveying pipeline 18, test kettle 19 temperature reaches requirement
After test.Owing to storage salt oven 17 and test kettle 19 are required for elevated-temperature seal, structure is complicated, and equipment becomes
This height, simultaneously after off-test, solid-state fused salt easily remains in salt conveying pipeline, is not easily taken out.
Fig. 2 is testing machine structure schematic diagram of the present invention, mainly include lower clamp 1, fixed plate 2, sample 3,
Upper fixture 4, graphite crucible 5, counter-force post 6, test kettle 7, pull bar 8, still flange 9, corrugated tube lower flange
10, corrugated tube 11, corrugated tube upper flange 12, kettle cover 13, column 14 and upper frame plate 15.Kettle cover 13, vertical
Post 14 and upper frame plate 15 are fixedly connected in frame, and corrugated tube 11 is telescopically fixed on kettle cover 13 and examination
Testing between still 7, kettle cover 13, corrugated tube 11 and test kettle 7 pass sequentially through corrugated tube upper flange 12, ripple
Pipe lower flange 10 and still flange 9 are removably joined together, wherein, and corrugated tube lower flange 10 and still method
Blue 9 are linked together by hinged bolt, and junction can seal with carbon seal ring；Counter-force post 6 upper end
Being fixed on kettle cover 13 through corrugated tube upper flange 12, lower end sequentially passes through corrugated tube 11, corrugated tube purgation
Orchid 10 and still flange 9, extend to be fixed in fixed plate 2 in test kettle 7；Pull bar 8 upper end carries with adding
Putting connected, lower end sequentially passes through kettle cover 13, corrugated tube upper flange 12, corrugated tube 11, corrugated tube lower flange
10 and still flange 9, extend to be connected with upper fixture 4 in test kettle 7, lower clamp 1 is fixed on fixed plate 2
On；Charger applies the pulling force needed for test by pull bar 8 to sample 3, and sample 3 is removably secured
Between upper fixture 4 and lower clamp 1.
Before on-test, corrugated tube 11 is in elongation state, and test kettle 7 separates with corrugated tube 11；First,
Sample 3 is fixed between upper fixture 4 and lower clamp 1, in graphite crucible 5, loads solid-state fused salt, and
Graphite crucible 5 is put into test kettle 7, then by connecting still flange 9 with corrugated tube lower flange 10 by examination
Test together with still 7 is sealingly fixed to corrugated tube 11, now sample 3 and lower clamp 1 be in solid-state fused salt it
On, heat run still 7, after solid-state fused salt melts, electric pushrod compress bellows 11, make test kettle 7
Relatively upper shifting, thus sample 3 and lower clamp 1 are immersed in liquid fused salt, continue heat run still 7, temperature
Degree starts test after reaching test requirements document, after end to be tested, and electric pushrod stretching corrugated tube 11, make test
Still 7 moves down relatively, thus is separated with liquid fused salt with lower clamp 1 by sample 3.
Air locking between still flange 9 with corrugated tube lower flange 10 can be the similar sealings such as carbon seal ring
Device.
Although the foregoing describing the detailed description of the invention of the present invention, it will be appreciated by those of skill in the art that
These are merely illustrative of, and on the premise of without departing substantially from the principle of the present invention and essence, can implement these
Mode makes various changes or modifications, and therefore, protection scope of the present invention is defined by the appended claims.
Claims (4)
1. an one-pot corrugated tube stress corrosion creep and stress rupture test device, it is characterised in that include kettle cover (13),
Described kettle cover (13), column (14) and upper frame plate (15) are fixedly connected in frame, described kettle cover (13),
Corrugated tube (11) and test kettle (7) are connected to each other by flange；Counter-force post (6) upper end passes
Flange is fixed on described kettle cover (13), and lower end sequentially passes through described corrugated tube (11) and flange, extends
It is fixed in fixed plate (2) to described test kettle (7) is inner；Graphite crucible (5) is used for holding test and uses
Solid-state fused salt, and it is inner to be removably disposed in described test kettle (7)；Pull bar (8) upper end and sample (3)
Charger be connected, lower end sequentially passes through described kettle cover (13), flange and corrugated tube (11), extends to
Test kettle (7) is inner and upper fixture (4) is connected, and described lower clamp (1) is fixed in fixed plate (2)；
Described charger applies the pulling force needed for test, described sample by pull bar (8) to described sample (3)
(3) it is removably attached between fixture (4) and lower clamp (1).
One-pot corrugated tube stress corrosion creep and stress rupture test device the most according to claim 1, it is characterised in that:
Flange between described kettle cover (13) and corrugated tube (11) is monolayer, for corrugated tube upper flange (12)；
Flange between described corrugated tube (11) and test kettle (7) is double-deck, respectively corrugated tube lower flange
(10) and still flange (9), the most removably it is sealed connected together.
One-pot corrugated tube stress corrosion creep and stress rupture test device the most according to claim 2, it is characterised in that:
When fused salt in described graphite crucible (5) is solid-state, described sample (3) and lower clamp (1) are in institute
State on fused salt；When fused salt in described graphite crucible (5) is liquid, compress/stretching by electric pushrod
Described corrugated tube (11) so that described test kettle (7) relatively Up/Down by described sample (3) with
Lower clamp (1) is immersed in liquid fused salt or separates from liquid fused salt.
One-pot corrugated tube stress corrosion creep and stress rupture test device the most according to claim 2, it is characterised in that:
Air locking between described still flange (9) and corrugated tube lower flange (10) is carbon seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503704.XA CN105954114B (en) | 2016-06-30 | 2016-06-30 | Single cauldron bellows stress corrosion creep endurance test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610503704.XA CN105954114B (en) | 2016-06-30 | 2016-06-30 | Single cauldron bellows stress corrosion creep endurance test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105954114A true CN105954114A (en) | 2016-09-21 |
| CN105954114B CN105954114B (en) | 2024-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610503704.XA Active CN105954114B (en) | 2016-06-30 | 2016-06-30 | Single cauldron bellows stress corrosion creep endurance test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN105954114B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769450A (en) * | 2016-11-29 | 2017-05-31 | 中国科学院上海应用物理研究所 | Fused salt environmental mechanicses performance testing device, system and method |
| CN108072567A (en) * | 2017-12-08 | 2018-05-25 | 广州特种承压设备检测研究院 | A kind of plastics constant temperature stress etching experiment device and method |
| CN111693449A (en) * | 2020-06-22 | 2020-09-22 | 中国核动力研究设计院 | Telescopic corrosion kettle and corrosion test method for liquid lead-bismuth alloy |
| CN112595575A (en) * | 2020-11-09 | 2021-04-02 | 南京工业大学 | Test device and method for testing various mechanical properties in high-temperature molten salt corrosion environment |
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| CN205786128U (en) * | 2016-06-30 | 2016-12-07 | 上海百若试验仪器有限公司 | A kind of one-pot corrugated tube stress corrosion creep and stress rupture test device |
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| KR20090055915A (en) * | 2007-11-29 | 2009-06-03 | 한국원자력연구원 | An apparatus for constant load creep test under helium environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106769450A (en) * | 2016-11-29 | 2017-05-31 | 中国科学院上海应用物理研究所 | Fused salt environmental mechanicses performance testing device, system and method |
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| CN108072567A (en) * | 2017-12-08 | 2018-05-25 | 广州特种承压设备检测研究院 | A kind of plastics constant temperature stress etching experiment device and method |
| CN111693449A (en) * | 2020-06-22 | 2020-09-22 | 中国核动力研究设计院 | Telescopic corrosion kettle and corrosion test method for liquid lead-bismuth alloy |
| CN111693449B (en) * | 2020-06-22 | 2022-05-17 | 中国核动力研究设计院 | Telescopic corrosion kettle and corrosion test method for liquid lead-bismuth alloy |
| CN112595575A (en) * | 2020-11-09 | 2021-04-02 | 南京工业大学 | Test device and method for testing various mechanical properties in high-temperature molten salt corrosion environment |
| CN112595575B (en) * | 2020-11-09 | 2022-03-18 | 南京工业大学 | Test device and method for testing various mechanical properties in high-temperature molten salt corrosion environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105954114B (en) | 2024-02-27 |
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