CN106840849A - A kind of Metal Materials At High Temperature corrosive environment deformation measuring device - Google Patents
A kind of Metal Materials At High Temperature corrosive environment deformation measuring device Download PDFInfo
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- CN106840849A CN106840849A CN201710084680.3A CN201710084680A CN106840849A CN 106840849 A CN106840849 A CN 106840849A CN 201710084680 A CN201710084680 A CN 201710084680A CN 106840849 A CN106840849 A CN 106840849A
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- bar
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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- 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
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to a kind of Metal Materials At High Temperature corrosive environment deformation measuring device, the Metal Materials At High Temperature corrosive environment deformation measuring device includes：Atmospheric furnace, high-temperature corrosion environment case, deformation measurement component, flange assembly, charging assembly, etchant gas generator and sample, the deformation measurement uses traditional extraction deformation measurement mode, but bar of extending is designed as two parts inside and outside high-temperature corrosion environment case, connected with metal bellows between inside and outside bar of extending, to ensure the dynamic sealing between ejector and high-temperature corrosion environment case；Outer bar of extending is loaded under main frame on pull bar by pole support of extending installed in creep rupture, and the cooperation by extending between bar positioning sliding block and guide rail, the movement of bar of realizing extending during the test button deformation of creep, it is ensured that the accurate measurement of deflection.
Description
Technical field
The invention belongs to metal material mechanics performance test analysis field, and in particular to a kind of Metal Materials At High Temperature corrodes ring
Border deformation measuring device.
Background technology
At a certain temperature, when keeping stress constant, with time lengthening, increased phenomenon is referred to as compacted for strain for solid material
Become.The creep behaviour of material is time, stress, the coefficient result of temperature, as long as the time long enough of effect, creep is being answered
Power can also occur when being much smaller than elastic limit.Equally, the creep behaviour of material can also occur at low temperature, but only reach certain
Temperature can just become notable, the temperature is referred to as the creep temperature of material.When the fields such as thermoelectricity, nuclear power are long under high temperature loaded condition
The component of work, creep impairment is its main failure mode, and the creep life of material is material development, component design, life-span
One of basic mechanical behavior under high temperature that prediction and reliability assessment must be referred to.
Except temperature stress effect under it is normal long when creep impairment in addition to, for thermoelectricity, the high-temperature component of nuclear power field and
Speech, within its creep life, also faces the vapor-phase oxidation in pipeline, the flue gas corrosion and pipeline welded joint outside pipeline
The serious Problem of Failure such as cracking.The reduction of the corrosion, oxidation and welding point of high-temperature component can influence the creep longevity of pipeline
Life, while the deformation of creep of high-temperature component can also accelerate oxidation, corrosion and the reduction of welding point of pipeline, therefore, utilize
Material creep life prediction under conventional simple hot conditions can not accurately reflect the true lifetime limit of pipe fitting.According to high temperature
The actual Service Environment of part, designing and developing can simulate its internal high temperature vapor, the environment mould of external high temperature flue gas environment
Intend device, carry out the creep rupture performance test analysis under its nearly Service Environment, life prediction to pipe fittings such as thermoelectricity, nuclear powers and
Reliability assessment has very important meaning.
During Metal Materials At High Temperature creep and stress rupture test, accurate deformation measurement is the key of experimental test.It is conventional high
Warm creep test equipment is typically drawn the deformation of sample using bar of extending, and recycles displacement meter to carry out outside high-temperature heater compacted
The indirect measurement of deformation.But the nearly Service Environment analogue means of high-temperature component is sealing system, the deformation of sample in process of the test
Extraction, the motion of ejector, the cooperation and dynamic sealing of particularly ejector and experimental cabin become particularly critical.
The content of the invention
The present invention proposes a kind of Metal Materials At High Temperature corrosive environment deformation measuring device, and deformation measuring device is using routine
Extraction deformation measurement mode, bar of extending is designed as two parts inside and outside high-temperature corrosion environment case, with metal between inside and outside bar of extending
Bellows is connected, to ensure the dynamic sealing between ejector and high-temperature corrosion environment case；Bar is extended by lever bracket of extending outward
Frame is on pull bar under creep rupture loading main frame, and the cooperation by extending between bar positioning sliding block and guide rail, realizes gold
Extended during the category sample deformation of creep movement of bar, it is ensured that the accurate measurement of deflection.
To achieve the above object, the present invention uses following technical scheme：
A kind of Metal Materials At High Temperature corrosive environment deformation measuring device, the Metal Materials At High Temperature corrosive environment deformation measuring device
Including：Atmospheric furnace, high-temperature corrosion environment case, deformation measurement component, flange assembly, charging assembly, etchant gas generator and examination
Sample.
Further, the high-temperature corrosion environment case is arranged in the atmospheric furnace, and the flange assembly is arranged at described
High-temperature corrosion environment case two ends, the charging assembly is arranged on the flange assembly and extends to the height through flange assembly
In warm corrosive environment case, the sample is positioned in the high-temperature corrosion environment case, the etchant gas generator and the height
Warm corrosive environment case connection.
Further, the deformation measurement component includes：Extend in first bar, bar of extending in second, bar of extending outside first,
Extend outside second bar, the first bellows, the second bellows, the first bracket, the second bracket, positioning sliding block, slide rail and displacement meter, institute
Stating flange assembly includes：Upper flange and lower flange, the charging assembly include：Upper connecting rod, lower pull bar, upper grip, lower chuck.
Further, institute's upper flange is arranged at the high-temperature corrosion environment case upper end, and the lower flange is arranged at institute
State high-temperature corrosion environment case lower end.
Further, the upper connecting rod is connected with the upper grip, and the upper grip extends to institute through upper flange middle part
State in high-temperature corrosion environment case, the lower pull bar is connected with the lower chuck, the lower chuck is extended to through lower flange middle part
In the high-temperature corrosion environment case, the upper grip and lower chuck are clamped in the two ends of sample respectively.
Further, the described first interior bar of extending, second interior bar one end of extending are connected in snap ring form with the sample, institute
State bar of being extended in first, the second interior bar other end through lower flange and the first bellows, the upper flanges of the second bellows of extending
The centre bore and lower end flanges with the first bellows, the second bellows are connected with thread forms respectively, bar of being extended outside described first,
Lower end flanges of the bar one end respectively with first bellows, the second bellows of being extended outside second are connected with thread forms, described
Extend outside first bar, the bar other end of extending outside second is individually fixed on first bracket, the second bracket, first support
Frame, the second bracket are fixed on positioning sliding block, and the positioning sliding block is connected with the slide rail, and the displacement meter is fixed on described
Between first bracket, the second bracket.
Further, the etchant gas generator is connected by pipeline with the high-temperature corrosion environment case chamber.
Further, first bellows, the second bellows upper flanges are threaded and coordinate with the lower flange
Ensure the sealing of the high-temperature corrosion environment case.
The beneficial effects of the present invention are the device design principle is simple, and method is simple, in the neck such as thermoelectricity, nuclear power
Under the metallic material corrosion environment of domain the test of creep rupture performance or other need to carry out it is easily real in mechanical property under corrosive environment
It is existing, it is possible to achieve industrialized production.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.
Conversely, the present invention covers any replacement done in spirit and scope of the invention being defined by the claims, repaiies
Change, equivalent method and scheme.Further, in order that the public has a better understanding to the present invention, below to of the invention thin
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
Description can also completely understand the present invention.
As shown in figure 1, a kind of Metal Materials At High Temperature corrosive environment deformation measuring device, the Metal Materials At High Temperature corrosion ring
Border deformation measuring device includes：Atmospheric furnace 1, high-temperature corrosion environment case 2, deformation measurement component, flange assembly, charging assembly, corruption
Erosion gas generator 9 and sample 13.The deformation measurement component includes：The interior bar 11, first of extending of bar 10, second of being extended in first
Extended outside outer bar 14, second of extending bar 15, the first bellows 16, the second bellows 17, the first bracket 18, the second bracket 19, fixed
Position sliding block 20, slide rail 21 and displacement meter 12, the flange assembly include：Upper flange 3 and lower flange 4, the charging assembly include：
Upper connecting rod 5, lower pull bar 6, upper grip 7, lower chuck 8.
The high-temperature corrosion environment case 2 is arranged in the atmospheric furnace 1, and the flange assembly is arranged at the high temperature corrosion
The two ends of environmental cabinet 2, the charging assembly is arranged on the flange assembly and extends to the high temperature corrosion through flange assembly
In environmental cabinet 2, the sample 13 is positioned in the high-temperature corrosion environment case 2, the etchant gas generator 9 and the high temperature
Corrosive environment case 2 is connected.
The upper flange 3 is arranged at the upper end of high-temperature corrosion environment case 2, and it is rotten that the lower flange 4 is arranged at the high temperature
Erosion environmental cabinet 2 lower end, the upper connecting rod 5 is connected with the upper grip 7, and the upper grip 7 extends to institute through the center of upper flange 3
State in high-temperature corrosion environment case 2, the lower pull bar 6 is connected with the lower chuck 8, the lower chuck 8 prolongs through the middle part of lower flange 4
Extend in the high-temperature corrosion environment case 2, the upper grip 7 and lower chuck 8 clamp the two ends of sample 13 respectively, in described first
The interior one end of bar 11 of extending of bar 10, second of extending is connected in snap ring form with the sample 13, bar 10, second of being extended in described first
The other end of bar 11 of inside extending passes through the bellows 16 of lower flange 4 and first, the upper flanges centre bore of the second bellows 17 and difference
Lower end flanges with the first bellows 16, the second bellows 17 are connected with thread forms, are extended outside bar 14, second outside described first
Lower end flanges of the one end of bar 15 respectively with first bellows 16, the second bellows 17 of extending are connected with thread forms, described
Extending outside first other end of bar 15 of extend outside bar 14, second is individually fixed on first bracket 18, the second bracket 19, institute
State the first bracket 18, the second bracket 19 to be fixed on positioning sliding block 20, the positioning sliding block 20 is connected with the slide rail 21, institute
State displacement meter 12 to be fixed between first bracket 18, the second bracket 19, on first bellows 16, the second bellows 17
End flanges are threaded and coordinate with the lower flange 4 sealing for ensureing the high-temperature corrosion environment case 2, and the displacement meter 12 is adopted
Differential transformer type displacement meter is used, the deformation measurement in metal material creep process is carried out.Displacement meter upper end is designed with protective case,
External impact or the interference of displacement meter in process of the test are prevented, lower end is designed with set screw, carries out testing returning for preceding displacement meter
Reset regulation after zero-sum and experiment.
During detection, upper connecting rod and lower pull bar are connected with loading main frame, metal material sample is attached on chuck, by the
First, second extend bar drawn through high-temperature corrosion environment case lower flange and wavy metal tube hub fairlead and with displacement meter company
Connect, and adjust reset zero, junction corrosion gas generator is ready for deformation measurement, after equipment installation, opens air
Heating furnace, treats that furnace temperature reaches target temperature, is passed through aggressive atmosphere and stabilization furnace temperature.After furnace temperature stabilization, controlling test is opened
System, loads timing and starts simultaneously at creep rupture deformation measurement.
The beneficial effects of the present invention are the device design principle is simple, and method is simple, in the neck such as thermoelectricity, nuclear power
Under the metallic material corrosion environment of domain the test of creep rupture performance or other need to carry out it is easily real in mechanical property under corrosive environment
It is existing, it is possible to achieve industrialized production.
Claims (8)
1. a kind of Metal Materials At High Temperature corrosive environment deformation measuring device, it is characterised in that the Metal Materials At High Temperature corrodes ring
Border deformation measuring device includes：Atmospheric furnace（1）, high-temperature corrosion environment case（2）, deformation measurement component, flange assembly, loading group
Part, etchant gas generator（9）And sample（13）.
2. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 1, it is characterised in that the high temperature
Corrosive environment case（2）It is arranged at the atmospheric furnace（1）Interior, the flange assembly is arranged at the high-temperature corrosion environment case（2）Two
End, the charging assembly is arranged on the flange assembly and extends to the high-temperature corrosion environment case through flange assembly（2）
It is interior, the sample（13）It is positioned over the high-temperature corrosion environment case（2）It is interior, the etchant gas generator（9）With the high temperature
Corrosive environment case（2）Connection.
3. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 2, it is characterised in that the deformation
Measurement assembly includes：First interior bar of extending（10）, bar of extending in second（11）, bar of extending outside first（14）, bar of extending outside second
（15）, the first bellows（16）, the second bellows（17）, the first bracket（18）, the second bracket（19）, positioning sliding block（20）, it is sliding
Rail（21）And displacement meter（12）, the flange assembly includes：Upper flange（3）And lower flange（4）, the charging assembly includes：On
Pull bar（5）, lower pull bar（6）, upper grip（7）, lower chuck（8）.
4. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 3, it is characterised in that the upper method
It is blue（3）It is arranged at the high-temperature corrosion environment case（2）Upper end, the lower flange（4）It is arranged at the high-temperature corrosion environment case（2）
Lower end.
5. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 3, it is characterised in that the pull-up
Bar（5）With the upper grip（7）Connection, the upper grip（7）Through upper flange（3）Middle part extends to the high-temperature corrosion environment
Case（2）It is interior, the lower pull bar（6）With the lower chuck（8）Connection, the lower chuck（8）Through lower flange（4）Middle part extends to
The high-temperature corrosion environment case（2）It is interior, the upper grip（7）And lower chuck（8）Sample is clamped in respectively（13）Two ends.
6. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 3, it is characterised in that described first
Inside extend bar（10）, bar of extending in second（11）One end is with snap ring form and the sample（13）Connection, extends in described first
Bar（10）, bar of extending in second（11）The other end passes through lower flange（4）With the first bellows（16）, the second bellows（17）It is upper
End flanges centre bore and respectively with the first bellows（16）, the second bellows（17）Lower end flanges with thread forms connect, institute
State bar of being extended outside first（14）, bar of extending outside second（15）One end respectively with first bellows（16）, the second bellows
（17）Lower end flanges connected with thread forms, bar of extending outside described first（14）, bar of extending outside second（15）The other end is distinguished
It is fixed on first bracket（18）, the second bracket（19）On, first bracket（18）, the second bracket（19）It is fixed to be fixed on
Position sliding block（20）On, the positioning sliding block（20）With the slide rail（21）Connection, the displacement meter（12）It is fixed on described
One bracket（18）, the second bracket（19）Between.
7. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 1, it is characterised in that the corrosion
Gas generator（9）By pipeline and the high-temperature corrosion environment case（2）Connected in chamber.
8. Metal Materials At High Temperature corrosive environment deformation measuring device according to claim 6, it is characterised in that described first
Bellows（16）, the second bellows（17）Upper flanges be threaded and with the lower flange（4）Coordinate and ensure that the high temperature is rotten
Erosion environmental cabinet（2）Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084680.3A CN106840849A (en) | 2017-02-16 | 2017-02-16 | A kind of Metal Materials At High Temperature corrosive environment deformation measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084680.3A CN106840849A (en) | 2017-02-16 | 2017-02-16 | A kind of Metal Materials At High Temperature corrosive environment deformation measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106840849A true CN106840849A (en) | 2017-06-13 |
Family
ID=59128398
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710084680.3A Pending CN106840849A (en) | 2017-02-16 | 2017-02-16 | A kind of Metal Materials At High Temperature corrosive environment deformation measuring device |
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| CN (1) | CN106840849A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108519298A (en) * | 2018-04-09 | 2018-09-11 | 北京科技大学 | A kind of high-temperature water vapor Creeping Environmental endurance testing machine |
| WO2019190335A1 (en) * | 2018-03-26 | 2019-10-03 | Huaman Mamani Fredy Alberto | Device for evaluating the mechanical strength of materials as a function of temperature and atmosphere |
| CN113281371A (en) * | 2021-05-20 | 2021-08-20 | 华东理工大学 | Crack propagation deformation measuring device and high-temperature test device |
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