CN106483025A - The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method - Google Patents
The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method Download PDFInfo
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- CN106483025A CN106483025A CN201611028719.1A CN201611028719A CN106483025A CN 106483025 A CN106483025 A CN 106483025A CN 201611028719 A CN201611028719 A CN 201611028719A CN 106483025 A CN106483025 A CN 106483025A
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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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- 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
- G01N3/04—Chucks
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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
- G01N3/56—Investigating resistance to wear or abrasion
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- 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
- G01N2203/0001—Type of application of the stress
- G01N2203/0012—Constant speed test
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- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- 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
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- 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
- G01N2203/023—Pressure
- G01N2203/0232—High pressure
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- 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
- G01N2203/025—Geometry of the test
- G01N2203/0252—Monoaxial, i.e. the forces being applied along a single axis of the specimen
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- 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
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
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- 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
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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Abstract
The present invention relates to the stress corrosion (cracking) test field of metal and its alloy, slow tensile test fixture and using method of specifically a kind of light-wall pipe arc sample under HTHP water environment, it is adaptable to stress corrosion opening cracking maleate sensitivity research of the thin-wall pipes in high-temperature high pressure water.The fixture is made up of sample holder part and fixture changeover section, and wherein sample holder part includes die, punch, alignment pin and fastening bolt, can be accurately positioned, is completely fixed sample；Fixture changeover section includes external screw thread adaptor, internal thread adaptor and connection bearing pin, is securable to existing support and connects tensile axis, realizes clamping and the axial tension of light-wall pipe arc sample.Present configuration is simple, easy to assembly, can be accurately positioned and be completely fixed sample, can achieve slow tension test of the light-wall pipe arc sample under HTHP water environment.
Description
Technical field
The present invention relates to the stress corrosion (cracking) test field of metal and its alloy, specifically a kind of light-wall pipe arc sample is in height
Slow tensile test fixture and using method under warm water under high pressure environment, it is adaptable to which stress of the thin-wall pipes in high-temperature high pressure water is rotten
Erosion cracking susceptible Journal of Sex Research.
Background technology
Thin-walled pipe component is (such as：Steam generator heat-transfer pipe) in HTHP water environment (about 326 DEG C of primary side temperature, pressure
Power about 15.8MPa；About 285 DEG C of secondary side temperature, pressure about 6.8MPa) in stress corrosion cracking be that current Nuclear Power Industry faces
Major issue.In the stress corrosion opening cracking maleate sensitivity of research material, slow stretching is one of common test method, and it is by slow
Slow strain rate (10-4～10-7s-1) applying stress, until sample ruptures.This feature of slow tension test is required
Fixture need to be accurately positioned to sample, be completely fixed, it is to avoid in drawing process, because sample loosens, to cause load (or stress) to produce huge
Great fluctuation process.At present, many methods flattened using two ends of light-wall pipe arc sample are clamped, but will cause pipe performance after flattening
Change, though and can more accurately reflect the actual performance of thin-wall pipes using direct method of clamping, sample holder is difficult
Degree is larger.In existing light-wall pipe arc sample high temperature tension test fixture, direct method of clamping is partly employed, but is still suffered from
Some problems, such as：Sample positioning is inaccurate, clamping is not fastened, and clamp structure is complicated, and how to correspond to circle suitable for bare terminal end circular arc
The less sample in heart angle, and fixture volume will be caused excessive when the sample at semi-circular clamp end is clamped etc..Therefore, for above-mentioned
Problem designs the rationally reliable slow tensile test fixture of light-wall pipe arc sample, is to carry out thin-wall pipes in HTHP water ring
The premise of stress corrosion opening cracking maleate sensitivity research under border.
Content of the invention
It is an object of the invention to provide a kind of slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and use
Method, can solve existing fixture light-wall pipe arc sample is positioned inaccurate, clamping do not fasten, complex structure, size big and
Be not suitable for semi-circular clamp end sample the problems such as.
Technical scheme is as follows：
A kind of slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water, the fixture are provided with sample holder part and folder
Tool changeover section, wherein sample holder part are included on die, punch, alignment pin and fastening bolt, each die and punch
Lower setting, and be connected by alignment pin and fastening bolt, one group of grip unit is formed, sample holder part includes two groups
Symmetrically arranged grip unit；Fixture changeover section includes external screw thread adaptor, internal thread adaptor and connection bearing pin, external screw thread
Another group of grip unit of one group of grip unit, internal thread adaptor and sample holder part of adaptor and sample holder part
All connection is realized by connecting bearing pin.
One end of die and punch in the fixture is elongated end, which is provided with pin-and-hole, and die and punch cooperation make
Gap is left between two elongated end of used time；The other end of die is provided with arc-shaped concave, through hole and pin-and-hole, and the other end of punch is provided with
Arc convex, through hole and pin-and-hole；Light-wall pipe arc sample both sides used are bare terminal end, and middle is gauge length section, and the two passes through circular arc
Transition, and two bare terminal ends are equipped with the diameter force-bearing hole equal with gauge length section width.
The arc convex radius of the arc-shaped concave radius of the die in the fixture and punch each depends on specimen size, recessed
When mould and punch are used cooperatively between concave surface and convex surface formed circular arc space, place sample after, concave, convex face respectively with sample
Bare terminal end inner-outer wall is fitted tightly.
The pin-and-hole of die and punch in the test fixture is equal sized with sample force-bearing hole, matched by inserting
Bearing pin, realize being accurately positioned for sample, and sample marking distance section be exposed on the outside of fixture；The through hole of die and punch is by insertion
Bolt is fastenedly connected, and it is zero to make the sample free degree, realizes being completely fixed for sample.
Platform is left below the arc convex of the punch in the test fixture, the platform is for bare terminal end because mismachining tolerance is led
The redundance slot milling of cause.
Internal thread adaptor, one end of external screw thread adaptor in the test fixture is equipped with Baltimore groove, Baltimore groove side
Wall is provided with pin-and-hole, and the other end of internal thread adaptor is provided with internal thread, and the other end of external screw thread adaptor is provided with external screw thread.
Internal thread adaptor in the test fixture, the Baltimore groove placement die of external screw thread adaptor one end and punch
Elongated end, side wall pin hole are then overlapped with the elongated end pin-and-hole center of circle of die and punch, are connected by bearing pin.
External screw thread adaptor in the test fixture is fixed on bracket base by end external screw thread, and internal thread is transferred
Part is threadeded with tensile axis by end internal thread.
The concrete installation of the test fixture, using method, comprise the following steps that：
(1) light-wall pipe arc sample bare terminal end is placed in the circular arc space that die and punch are cooperatively formed, and makes examination
Sample bare terminal end force-bearing hole is overlapped with the pin-and-hole center of circle on the arc-shaped concave of die and the arc convex of punch, is inserted into bearing pin fixed
Position sample；
(2) through hole in die and punch both sides is inserted into bolt and tightens nut, and sample is completely fixed；
(3) elongated end of die and punch is put in internal thread adaptor, the Baltimore groove of external screw thread adaptor, and makes recessed
The pin-and-hole center of circle of mould and punch elongated end and adaptor overlaps, and is inserted into bearing pin, connection die and punch and adaptor；
(4) fixture for being fixed with sample is integrally put in support, the connection of internal thread adaptor and tensile axis is first completed,
Then mounting bracket base, completes the fixation of external screw thread adaptor and support.
Advantages of the present invention and beneficial effect are：
1st, in fixture provided by the present invention, concave-convex mold is by with the use of alignment pin and fastening bolt, accurate by sample
Position, fasten completely, it is to avoid sample skids in slow drawing process.
2nd, in fixture provided by the present invention, concave-convex mold is machined with arcuate relief curved surface respectively, can be with arc sample bare terminal end
Inside and outside wall fit tightly, it is adaptable to the light-wall pipe sample with circular arc bare terminal end.
3rd, fixture provided by the present invention can make tensile axis and sample have higher axiality, prevent sample from bearing additional
Moment.
4th, clamp structure provided by the present invention is simple, and assembly and disassembly are convenient, can achieve to be accurately positioned and are completely fixed
Sample, can carry out slow tension test of the light-wall pipe arc sample under HTHP water environment, and the stress for studying thin-wall pipes is rotten
Erosion cracking sensitivity.
Description of the drawings
Fig. 1 is the assembling schematic diagram of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the present invention.
Fig. 3 is the concave-convex mold plan used cooperatively in the present invention.
Fig. 4 is stress (stress) strain (strain) curve of slow tension test in the embodiment of the present invention.
Fig. 5 is the pattern in the embodiment of the present invention before and after the test of light-wall pipe arc sample.Wherein, figure (a) is shape before test
Looks, figure (b) are pattern after test.
In figure：1- external screw thread adaptor；2- punch；3- die；4- light-wall pipe arc sample；5- internal thread adaptor；6-
Connection bearing pin；7- alignment pin；8- fastening bolt；9- external screw thread adaptor Baltimore groove；10- punch elongated end；11- connects bearing pin
Nut；12- fastening bolt nut；13- alignment pin nut；14- internal thread adaptor Baltimore groove；15- die elongated end；16-
Sample circular arc bare terminal end；17- force-bearing hole；18- punch platform；19- circular arc space.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.It should be appreciated that enforcement described herein
Example is used only as explaining the present invention, and the application of the non-limiting present invention.
As shown in Figure 1-Figure 3, the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water of the present invention, mainly by sample
Retained part and fixture changeover section composition.Wherein, sample holder part includes punch 2, die 3, alignment pin 7 and fastening spiral shell
Bolt 8, each die 3 are setting up and down with punch 2, and are connected by alignment pin 7 and fastening bolt 8, form one group of clamping
Unit, sample holder part include two groups of symmetrically arranged grip unit, can be accurately positioned and be completely fixed the examination of light-wall pipe arc
Sample 4；Fixture changeover section includes external screw thread adaptor 1, internal thread adaptor 5 and connection bearing pin 6, external screw thread adaptor 1 with
One group of grip unit of sample holder part, internal thread adaptor 5 are all passed through with another group of grip unit of sample holder part
Connection bearing pin 6 realizes connection, is securable to existing support and connects tensile axis.
As shown in figure 3, punch 2, die 3 are machined with corresponding arc convex, arc-shaped concave respectively, its arc convex half
Footpath, arc-shaped concave radius inwall respectively with light-wall pipe arc sample 4, exterior radius are consistent, and both punch 2 and die 3 coordinate
During use, between arc convex and arc-shaped concave, circular arc space 19 is formed, for positioning, fix light-wall pipe arc sample 4.Convex
Punch platform 18 is left below the arc convex of mould 2, the redundance that the punch platform can cause because of mismachining tolerance for bare terminal end
Slot milling, it is to avoid hinder clamping sample.
As Figure 1-Figure 2,4 both sides of light-wall pipe arc sample used are bare terminal end, and middle is gauge length section, and the two is by circle
Arc transition, and two bare terminal ends are all machined with the diameter force-bearing hole 17 equal with gauge length section width.By light-wall pipe arc sample 4 two
End (sample circular arc bare terminal end 16) is respectively placed between the grip unit that punch 2 and die 3 are formed, and first inserts alignment pin 7,
Die 3, sample circular arc bare terminal end 16 and punch 2 are sequentially connected by alignment pin 7, and screw supporting with alignment pin 7
Alignment pin nut 13.Fastening bolt 8 is inserted in punch 2 and 3 both sides of die again, and screw supporting with fastening bolt 8 tight
The supporting alignment pin nut 13 of fixing bolt nut 12 and alignment pin 7, makes inwall, the outer wall of sample circular arc bare terminal end 16
Arc convex respectively with punch 2, the arc-shaped concave of die 3 are fitted tightly, realize light-wall pipe arc sample 4 be accurately positioned and
Fastening clamp.
As Figure 1-Figure 2, one end of die 3 and punch 2 is elongated end, is machined with pin-and-hole thereon, die 3 another
End is machined with arc-shaped concave, through hole and pin-and-hole, and the other end of punch 2 is then machined with arc convex, through hole and pin-and-hole.Internal thread turns
Fitting 5, one end of external screw thread adaptor 1 are all machined with Baltimore groove, are machined with pin-and-hole, internal thread adaptor 5 in spill groove sidewall
The other end be machined with internal thread, the other end of external screw thread adaptor 1 is machined with external screw thread.Internal thread adaptor 5, external screw thread turns
The Baltimore groove of 1 one end of fitting is used for placing the elongated end of die 3 and punch 2, the extension then with die 3 and punch 2 of side wall pin hole
The end pin-and-hole center of circle overlaps, and is connected by bearing pin, can avoid the loosening of junction.One end of external screw thread adaptor 1 is machined with
External screw thread adaptor Baltimore groove 9, one end of internal thread adaptor 5 are machined with internal thread adaptor Baltimore groove 14.External screw thread is transferred
Part Baltimore groove 9 is used for placing the punch elongated end 10 of one group of grip unit convex mould 2 and the die elongated end 15 of die 3, interior spiral shell
Line adaptor Baltimore groove 14 is used for placing the punch elongated end 10 of another group of grip unit convex mould 2 and the die of die 3 extends
End 15.The punch elongated end 10 of the external screw thread adaptor Baltimore groove 9 of external screw thread adaptor 1 and one group of grip unit convex mould 2 and
Between the die elongated end 15 of die 3, in the internal thread adaptor Baltimore groove 14 of internal thread adaptor 5 and another group of grip unit
Between the punch elongated end 10 of punch 2 and the die elongated end 15 of die 3, connect all using supporting connection bearing pin 6 and accordingly
Pin axle nut 11 connects, it is to avoid the loosening of junction.The other end of external screw thread adaptor 1 is machined with external screw thread, external screw thread
Adaptor 1 is connected with existing support by external screw thread；The other end of internal thread adaptor 5 is machined with internal thread, internal thread
Adaptor 5 is threadeded with tensile axis by internal thread.
In the present invention, punch elongated end 10, die elongated end 15 thickness respectively with external screw thread adaptor Baltimore groove 9 and interior
The upper side of screw thread adaptor Baltimore groove 14, downside wall thickness are equal or approximately equal, and are more uniformly stressed connection bearing pin 6,
So as to extend bearing pin service life.As Figure 1-Figure 2, also leave between punch elongated end 10 and die elongated end 15 after assembling
Certain thickness gap, it is to avoid hinder the fastening effect of fastening bolt 8.Arc-shaped curved surface (arc convex, the arc of punch 2 and die 3
Shape concave surface) on pin-and-hole equal sized with sample force-bearing hole 17, by inserting matched alignment pin 7, realize sample 4
It is accurately positioned, and sample marking distance section is exposed on the outside of fixture；The through hole of punch 2 and die 3 is carried out tightly by inserting fastening bolt 8
It is solidly connected, it is zero to make sample 4DOF, realizes being completely fixed for sample 4.
In the present invention, by appropriate design punch 2, the height dimension of die 3 and 1 external screw thread of external screw thread adaptor and interior spiral shell
The position of 5 internal thread of line adaptor, the gauge length section cross-section center of light-wall pipe arc sample 4 are located on tensile axis axis, so as to
Axial tensile force is only received, and is not acted on by additional bending moment.The slow tension test of light-wall pipe arc sample high-temperature high pressure water of the present invention
Fixture, can be installed on the slow cupping machine of existing high-temperature high pressure water, carry out stress corrosion opening cracking maleate sensitivity research.
Embodiment
As shown in Figure 1-Figure 3, in the present embodiment the slow tension test of light-wall pipe arc sample high-temperature high pressure water include following interior
Hold：
(1) sample in the present embodiment and fixture
Test material is 690 alloy heat-transfer pipe of Inconel, external diameter Φ 19.05mm, wall thickness 1.09mm, and sample holder end is
Semicircle, gauge length section width are consistent with 17 diameter of force-bearing hole on sample circular arc bare terminal end 16, are 5.5mm, gauge length segment length
20mm, gauge length section is with sample circular arc bare terminal end 16 using the arc transition that radius is 10mm.Sample adopts linear cutter, plus
Specimen surface is avoided to be scratched as far as possible during work.Fixture material is 625 nickel-base alloys, has stronger in high-temperature alkaline solution
Corrosion resistance, according to sample external diameter and wall thickness, the crowning radius of punch are designed as 8.44mm, and the concave of die is designed as
9.53mm, the circular arc space 19 for forming thickness when concave-convex mold is used cooperatively for 1.09mm is hemispherical cavities.
(2) experimental condition in the present embodiment
Slow tensile strain rate 10-6s-1, 320 DEG C of test temperature, pressure about 11MPa, testing liquid are mass fraction 10%
NaOH solution.
After tested, 690 alloy of Inconel stress (stress) strain (strain) at the conditions of the experiments described above is bent
Line is as shown in figure 4, elongation percentage is 47.5%.Before and after test, the pattern of sample is as shown in Figure 5, it can be seen that fracture is located at gauge length
In section, and sample marking distance section is nothing corrugationless phenomenon near flexural deformation, bare terminal end force-bearing hole.The embodiment shows that the present invention is pressed from both sides
Has the requirement that the positioning to light-wall pipe arc sample and method of clamping meet the slow tension test of high-temperature high pressure water.
Claims (9)
1. the slow tensile test fixture of a kind of light-wall pipe arc sample high-temperature high pressure water, it is characterised in that the fixture is provided with specimen holder
Part and fixture changeover section is held, wherein sample holder part includes die, punch, alignment pin and fastening bolt, each recessed
Mould is setting up and down with punch, and is connected by alignment pin and fastening bolt, forms one group of grip unit, sample holder portion
Subpackage contains two groups of symmetrically arranged grip unit；Fixture changeover section includes external screw thread adaptor, internal thread adaptor and connection
Bearing pin, external screw thread adaptor are another with one group of grip unit of sample holder part, internal thread adaptor and sample holder part
One group of grip unit all realizes connection by connecting bearing pin.
2. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 1, it is characterised in that recessed
One end of mould and punch is elongated end, which is provided with pin-and-hole, leaves seam when die and punch are used cooperatively between two elongated ends
Gap；The other end of die is provided with arc-shaped concave, through hole and pin-and-hole, and the other end of punch is provided with arc convex, through hole and pin-and-hole；Institute
It is bare terminal end with light-wall pipe arc sample both sides, middle is gauge length section, and the two passes through arc transition, and two bare terminal ends are equipped with directly
The footpath force-bearing hole equal with gauge length section width.
3. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 2, it is characterised in that recessed
The arc convex radius of the arc-shaped concave radius of mould and punch each depends on specimen size, concave surface when die and punch are used cooperatively
Circular arc space is formed and convex surface between, and after sample is placed, concave, convex face is fitted tightly with sample holder end inner-outer wall respectively.
4. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 2, it is characterised in that recessed
The pin-and-hole of mould and punch is equal sized with sample force-bearing hole, by inserting matched bearing pin, realizes being accurately positioned for sample,
And sample marking distance section is exposed on the outside of fixture；The through hole of die and punch is fastenedly connected by inserting bolt, makes sample certainly
It is zero by spending, realizes being completely fixed for sample.
5. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 2, it is characterised in that convex
Platform is left below the arc convex of mould, the redundance slot milling that the platform causes because of mismachining tolerance for bare terminal end.
6. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 1, it is characterised in that interior
Screw thread adaptor, one end of external screw thread adaptor are equipped with Baltimore groove, and spill groove sidewall is provided with pin-and-hole, internal thread adaptor
The other end is provided with internal thread, and the other end of external screw thread adaptor is provided with external screw thread.
7. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 6, it is characterised in that interior
Screw thread adaptor, the Baltimore groove of external screw thread adaptor one end place the elongated end of die and punch, side wall pin hole then with die and
The elongated end pin-and-hole center of circle of punch overlaps, and is connected by bearing pin.
8. the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water according to claim 6, it is characterised in that outward
Screw thread adaptor is fixed on bracket base by end external screw thread, and internal thread adaptor is entered by end internal thread and tensile axis
Row is threaded.
9. the use of the slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water described in a kind of one of claim 1 to 8
Method, it is characterised in that comprise the steps：
(1) light-wall pipe arc sample bare terminal end is placed in the circular arc space that die and punch are cooperatively formed, and makes specimen holder
Hold bottom bearing hole to overlap with the pin-and-hole center of circle on the arc-shaped concave of die and the arc convex of punch, be inserted into bearing pin positioning examination
Sample；
(2) through hole in die and punch both sides is inserted into bolt and tightens nut, and sample is completely fixed；
(3) elongated end of die and punch is put in internal thread adaptor, the Baltimore groove of external screw thread adaptor, and make die and
The pin-and-hole center of circle of punch elongated end and adaptor overlaps, and is inserted into bearing pin, connection die and punch and adaptor；
(4) fixture for being fixed with sample is integrally put in support, the connection of internal thread adaptor and tensile axis is first completed, then
Mounting bracket base, completes the fixation of external screw thread adaptor and support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028719.1A CN106483025A (en) | 2016-11-18 | 2016-11-18 | The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028719.1A CN106483025A (en) | 2016-11-18 | 2016-11-18 | The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method |
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| CN106483025A true CN106483025A (en) | 2017-03-08 |
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| CN201611028719.1A Pending CN106483025A (en) | 2016-11-18 | 2016-11-18 | The slow tensile test fixture of light-wall pipe arc sample high-temperature high pressure water and using method |
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| CN108760482A (en) * | 2018-08-15 | 2018-11-06 | 中国原子能科学研究院 | A kind of clamping device of longitudinal direction arc tensile sample |
| CN108931440A (en) * | 2017-05-27 | 2018-12-04 | 核工业西南物理研究院 | A kind of small sample is uniaxially stretched creep test fixture |
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| CN108760481A (en) * | 2018-08-15 | 2018-11-06 | 中国原子能科学研究院 | A kind of clamp structure of longitudinal direction arc tensile sample |
| CN109374406A (en) * | 2018-12-28 | 2019-02-22 | 西北工业大学 | A kind of sample and fixture for minor diameter pipe tension test |
| CN109540659A (en) * | 2018-12-28 | 2019-03-29 | 西北工业大学 | A kind of Bauschinger effect test sample, fixture and method based on DIC |
| CN109900534A (en) * | 2019-02-27 | 2019-06-18 | 北京市理化分析测试中心 | A kind of preparation method of carbon fiber boundling sample preparation device and carbon fiber boundling |
| CN109900534B (en) * | 2019-02-27 | 2023-09-01 | 北京市理化分析测试中心 | Carbon fiber bundling sample preparation device and carbon fiber bundling preparation method |
| CN109738291A (en) * | 2019-03-13 | 2019-05-10 | 深圳大学 | Multifunctional curved test specimen garter extension pressurized tests device |
| US11674871B2 (en) * | 2020-08-26 | 2023-06-13 | Beijing Institute Of Technology | Bauschinger effect test fixture |
| US20220065763A1 (en) * | 2020-08-26 | 2022-03-03 | Beijing Institute Of Technology | Bauschinger effect test fixture |
| CN112748001A (en) * | 2020-11-25 | 2021-05-04 | 浙江工业大学 | Tensile anchor clamps of fine rule and rope |
| CN112748001B (en) * | 2020-11-25 | 2022-12-20 | 浙江工业大学 | Tensile anchor clamps of fine rule and rope |
| CN113281165B (en) * | 2021-06-30 | 2022-09-06 | 燕山大学 | Limit test fixture and method for high-strength steel plate fracture in complex tension-compression path |
| CN113281165A (en) * | 2021-06-30 | 2021-08-20 | 燕山大学 | Limit test fixture and method for high-strength steel plate fracture in complex tension-compression path |
| CN113751839A (en) * | 2021-08-20 | 2021-12-07 | 合肥聚能电物理高技术开发有限公司 | Plug welding tool and plug welding process for nitrogen pipe and nitrogen screen |
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