CN208187846U - A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube - Google Patents
A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube Download PDFInfo
- Publication number
- CN208187846U CN208187846U CN201820812132.8U CN201820812132U CN208187846U CN 208187846 U CN208187846 U CN 208187846U CN 201820812132 U CN201820812132 U CN 201820812132U CN 208187846 U CN208187846 U CN 208187846U
- Authority
- CN
- China
- Prior art keywords
- fixture
- wall tube
- small diameter
- metal thin
- sample
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of full pipe sample stress-rupture tester fixtures of small diameter metal thin-wall tube, the clamping when fixture is for realizing pipe sample stress-rupture tester complete to small diameter metal thin-wall tube.The fixture includes outer fixture and interior fixture, and outer fixture includes adapter ontology, binding nut, preceding cutting ferrule, rear cutting ferrule, adapter external screw thread, connection screw thread, and interior fixture includes mandrel rod and axle sleeve.So that thin-wall tube sample is recessed inwardly by cutting ferrule before and after metal when use, realize the outer clamping to tubing, the interior clamping to tubing is realized by mandrel rod and axle sleeve cooperation.It is compared with the prior art, the utility model had both improved the aid power to sample in the way of inside and outside clamping, while in turn avoiding damage of the processing screw thread to sample.And it is ingenious in design, it is simple to operate, it can be installed on the common various Stress-repture testers in laboratory, low in cost, test result is accurate.
Description
Technical field
The utility model belongs to metal material experimental study field, and in particular to a kind of full pipe sample of small diameter metal thin-wall tube
Stress-rupture tester fixture.
Background technique
Metallic high temperature creep rupture test be at a certain temperature of test material by permanent load effect when, defined lasting
A kind of mechanical property of materials test of the maximum stress of fracture is not caused in time.Creep rupture strength is the design of high-temperature component
Important evidence is provided with selection.Conventional stress rupture test using the lasting sample of standard (such as GB/T 2039-2012,
Bar samples, the plate tensile sample provided in ASTM E139).It is feasible for using this sample type for larger-size material
's.
Small diameter metal thin-walled pipe component has been widely used for the critical component of nuclear power, thermoelectricity, as steam generator passes
Heat pipe etc., high-temperature service performance will directly affect safe operation, once there is accident, may cause radioactive pollution, threaten
Environmental security.Therefore the enduring quality of test thin-wall tube material is extremely important for the safety for guaranteeing these components.
Small diameter metal thin-walled pipe component directly processing criterion sample, currently used method can not have two since wall thickness is thin
Kind: a kind of method will be cast aside in thin-wall tube pair, be processed into canoe shape sample, is then designed associated clamps and is carried out mechanical behavior under high temperature
Test (referring to Chinese patent: 201320175058.0,200810167020.2 and 201110230495.3), but this method
Sample requirement often can not meet to neutrality, specimen size measurement and sectional area calculate inaccuracy, and test result deviation can be very
Greatly, data dispersibility is big.Another method is generallyd use outside the interior chock plug and sample that straight cutting enters using full section pipe thin-walled sample
The locking nut of side, which cooperates, provides chucking power, but fits closely since the inner wall of interior chock plug and tubulose sample cannot achieve,
Therefore there is the hypodynamic problem that clamps in such fixture, and threading can damage sample, be easy at external screw thread
Stress is concentrated, and be may cause sample and is broken at this, so as to cause test failure.In addition to this, when metal thin-wall sample tube wall
When very thin, it will be unable to the screw thread in processing outside, cause this method infeasible.
Utility model content
The purpose of this utility model is to overcome the above drawbacks in the prior art, and it is thin to provide a kind of small diameter metal
Wall Guan Quanguan sample stress-rupture tester fixture.
What the utility model adopts the following technical solution to realize:
A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube, including outer fixture and interior fixture；Wherein,
One end of outer fixture is machined with connection screw thread, and the other end is adapter ontology, is machined with switching on adapter ontology
Head external screw thread, outer fixture further include the binding nut that cutting ferrule and utilization screw thread are connect with adapter；
Interior fixture includes mandrel rod and axle sleeve, and mandrel rod top is equipped with fixture nut, and middle part is equipped with external screw thread, and lower part is cone
Structure；Axle sleeve upper end is equipped with double-shaft shoulder, and lower end is symmetrical six valves inner cone sleeve；
When use state, outer fixture clamping mode are as follows: adapter ontology and cutting ferrule are sleeved on the examination of small diameter metal thin-wall tube
On the outside of sample, when screwing binding nut, cutting ferrule is pushed into the gap between adapter ontology and small diameter metal thin-wall tube sample
In, so that small diameter metal thin-wall tube sample is recessed inwardly, is formed and clamped；Interior fixture clamping mode are as follows: interior fixture is sleeved on small
On the inside of bore thin-wall metal pipe sample, be tightened nut, passes through the cooperation between conical structure and six valve inner cone sleeves
Realize the interior clamping to small diameter metal thin-wall tube sample.
The utility model, which further improves, to be, cutting ferrule includes preceding cutting ferrule and rear cutting ferrule, when outer clamp, screws folder
When tight nut, preceding cutting ferrule is pushed into the gap between adapter ontology and small diameter metal thin-wall tube sample, so that osculum
Diameter thin-wall metal pipe sample is recessed inwardly, and forms primary clamping, cutting ferrule and small diameter metal thin-walled before then cutting ferrule is pushed into
In gap between pipe sample, so that small diameter metal thin-wall tube sample is recessed inwardly, secondary clamping is formed.
The utility model, which further improves, to be, material hardness used in the preceding cutting ferrule, rear cutting ferrule is above described small
Bore thin-wall metal pipe sample, so that the preceding cutting ferrule, the rear cutting ferrule small diameter metal thin-wall tube when outer clamping
Sample is recessed inwardly.
The utility model, which further improves, to be, when the full pipe sample stress-rupture tester of small diameter metal thin-wall tube, outer clip
Tool and interior fixture, which are used cooperatively, respectively constitutes a set of upper fixture and a set of lower fixture.
The utility model, which further improves, to be, upper fixture and lower fixture pass through connection screw thread and endurance testing machine respectively
Connecting screw is threadedly coupled under upper connecting screw and endurance testing machine.
The utility model, which further improves, to be, when use state, the main body setting of small diameter metal thin-wall tube sample
In endurance testing machine hot plate.
The utility model has following beneficial technical effect:
The full pipe sample stress-rupture tester fixture of a kind of small diameter metal thin-wall tube provided by the utility model, including outer fixture
With interior fixture；Outer fixture includes adapter ontology, binding nut, preceding cutting ferrule, rear cutting ferrule, adapter external screw thread, connection screw thread；It is interior
Fixture includes mandrel rod, axle sleeve；Wherein: mandrel rod upper end is equipped with fixture nut, and middle part is equipped with external screw thread, and lower part is conical structure；
The axle sleeve upper end is equipped with double-shaft shoulder, and lower end is symmetrical six valves inner cone sleeve；When outer clamp, binding nut is screwed
When, cutting ferrule is pushed into the gap between adapter ontology and small diameter metal thin-wall tube sample, so that small diameter metal is thin
Wall pipe sample is recessed inwardly, and is formed and is clamped；When interior clamp, be tightened nut, passes through the conical structure and six valves
The interior clamping to tubing is realized in cooperation between inner cone sleeve.
Further, cutting ferrule is equipped with preceding cutting ferrule and rear cutting ferrule, and when screwing binding nut, preceding cutting ferrule is pushed into adapter ontology
In gap between small diameter metal thin-wall tube sample, so that small diameter metal thin-wall tube sample is recessed inwardly, formed primary
It clamps, in the gap before then cutting ferrule is pushed between cutting ferrule and small diameter metal thin-wall tube sample, so that small diameter metal
Thin-wall tube sample is recessed inwardly, and forms secondary clamping.
Further, when carrying out the full pipe sample stress-rupture tester of small diameter metal thin-wall tube, outer fixture and the cooperation of interior fixture make
It is identical as upper fixture structure with a set of upper fixture of composition and a set of lower fixture, lower fixture.
In short, the utility model has the advantage that
1, the utility model can realize the stress-rupture tester of small diameter metal thin-wall tube full section pipe sample, and sample is to neutrality
It is good, the error of traditional canoe shape specimen test result is avoided, so that creep rupture strength result is more accurate and reliable.
2, the utility model devises the traditional direct insertion interior chock plug of interior clamp instead, ensure that interior fixture and tubulose sample
Inner wall realization fit closely, improve the chucking power to tubulose sample inner wall.
3, the utility model devises the traditional external thread structure of outer clamp instead, is tried using two metal ferrules tubulose
Sample realization clamps twice, not only ensure that the chucking power to tubulose sample outer wall, but also do not damage sample, avoids being that sample is pressed from both sides in fixture
Hold place's fracture.
4, the utility model is ingenious in design, simple to operate, can be installed on the common various high-temperature and durables in laboratory
On testing machine, it is widely used.
Detailed description of the invention
Fig. 1 is the axial sectional view of the utility model fixture.
Fig. 2 is the scheme of installation of the utility model small diameter metal thin-wall tube sample stress-rupture tester fixture.
Wherein: 1 is outer fixture；11 be adapter ontology；12 be binding nut；13 be preceding cutting ferrule；14 be rear cutting ferrule；15 are
Adapter external screw thread；16 be connection screw thread；2 be interior fixture；21 be mandrel rod；211 be fixture nut；212 be mandrel rod external screw thread；
213 be conical structure；22 be axle sleeve；221 be double-shaft shoulder；222 be symmetrical six valves inner cone sleeve；3 be small diameter metal
Thin-wall tube sample；4 be upper fixture；5 be lower fixture；6 be connecting screw on endurance testing machine；7 be to connect spiral shell under endurance testing machine
Bar；8 be endurance testing machine hot plate.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the full pipe sample stress-rupture tester of a kind of small diameter metal thin-wall tube provided by the utility model
Fixture, including outer fixture 1 and interior fixture 2；Outer fixture includes adapter ontology 11, binding nut 12, preceding cutting ferrule 13, rear cutting ferrule
14, adapter external screw thread 15, connection screw thread 16；Interior fixture 2 specifically includes mandrel rod 21, axle sleeve 22.Wherein: 21 upper end of mandrel rod is equipped with
Fixture nut 211, middle part are equipped with external screw thread 212, and lower part is conical structure 213；22 upper end of axle sleeve is equipped with double-shaft shoulder
221, lower end is symmetrical six valves inner cone sleeve 222.
Specific installation steps are as follows:
Firstly, mandrel rod 21 is installed on inside axle sleeve 22, the two is through at together in small diameter metal thin-wall tube sample 3
Portion is stuck in sample end face using the double-shaft shoulder 221 of 22 upper end of axle sleeve, tightens fixture nut 211, pass through conical structure
213 and six cooperations between valve inner cone sleeve 222 realize the interior clamping to tubing.The interior fixture 2 of guarantee is interior with tubulose sample 3
Wall realization fits closely.
Successively binding nut 12, rear cutting ferrule 14, preceding cutting ferrule 13 are set on tubulose sample 3, later insert tubulose sample 3
In the preformed hole for entering adapter ontology 11, the opposite of binding nut 12, rear cutting ferrule 14, preceding cutting ferrule 13 and joint body 11 is adjusted
Position, screw down clips binding nut 12, cutting ferrule 13 is pushed into adapter ontology 11 and small diameter metal thin-wall tube sample 3 before guaranteeing
Between gap in so that small diameter metal thin-wall tube sample 3 is recessed inwardly, formed it is primary clamp, then cutting ferrule 14 is pushed into
Into the gap between preceding cutting ferrule 13 and small diameter metal thin-wall tube sample 3, so that small diameter metal thin-wall tube sample 3 concaves
It falls into, forms secondary clamping.
With the use of a set of upper fixture 4 is constituted, lower fixture 5 is identical as 4 structure of upper fixture for outer fixture 1 and interior fixture 2.
4 one end of upper fixture is threadedly coupled with connecting screw 6 on endurance testing machine, lower 5 one end of fixture and endurance testing machine
Lower connecting screw 7 is threadedly coupled.
The utility model is ingenious in design, simple to operate, is mountable to the common various stress-rupture testers in laboratory
On machine, when carrying out small diameter metal thin-walled pipeline section sample stress-rupture tester, the clamping to tubulose sample is realized.
Claims (6)
1. a kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube, which is characterized in that including outer fixture (1) and interior
Fixture (2)；Wherein,
One end of outer fixture (1) is machined with connection screw thread (16), and the other end is adapter ontology (11), on adapter ontology (11)
It is machined with adapter external screw thread (15), outer fixture further includes the binding nut that cutting ferrule and utilization screw thread are connect with adapter
(12)；
Interior fixture (2) includes mandrel rod (21) and axle sleeve (22), and mandrel rod (21) top is equipped with fixture nut (211), and middle part is equipped with outer
Screw thread (212), lower part are conical structure (213)；Axle sleeve (22) upper end is equipped with double-shaft shoulder (221), and lower end is symmetrical six valve
Inner cone sleeve (222)；
When use state, outer fixture (1) clamping mode are as follows: adapter ontology (11) and cutting ferrule are sleeved on small diameter metal thin-wall tube
On the outside of sample (3), when screwing binding nut (12), cutting ferrule is pushed into adapter ontology (11) and small diameter metal thin-wall tube tries
In gap between sample (3), so that small diameter metal thin-wall tube sample (3) is recessed inwardly, is formed and clamped；Interior fixture (2) clamps
Mode are as follows: interior fixture (2) is sleeved on the inside of small diameter metal thin-wall tube sample (3), and the nut that is tightened (211) passes through circular cone
The inner clip to small diameter metal thin-wall tube sample (3) is realized in cooperation between body structure (213) and six valve inner cone sleeves (222)
Tightly.
2. the full pipe sample stress-rupture tester fixture of a kind of small diameter metal thin-wall tube according to claim 1, feature exist
In, cutting ferrule includes preceding cutting ferrule (13) and rear cutting ferrule (14), when outer fixture (1) clamps, when screwing binding nut (12), and preceding cutting ferrule
(13) it is pushed into the gap between adapter ontology (11) and small diameter metal thin-wall tube sample (3), so that small-bore gold
Belong to thin-wall tube sample (3) to be recessed inwardly, forms primary clamping, then cutting ferrule (14) is pushed into preceding cutting ferrule (13) and small-bore gold
Belong in the gap between thin-wall tube sample (3), so that small diameter metal thin-wall tube sample (3) is recessed inwardly, forms secondary clamping.
3. the full pipe sample stress-rupture tester fixture of a kind of small diameter metal thin-wall tube according to claim 2, feature exist
In material hardness used in the preceding cutting ferrule (13), rear cutting ferrule (14) is above the small diameter metal thin-wall tube sample (3), makes
The preceding cutting ferrule (13), rear cutting ferrule (14) the small diameter metal thin-wall tube sample (3) concave when obtaining outer clamp
It falls into.
4. the full pipe sample stress-rupture tester fixture of a kind of small diameter metal thin-wall tube according to claim 1, feature exist
When, small diameter metal thin-wall tube full pipe sample stress-rupture tester, outer fixture (1) and interior fixture (2) are with the use of respectively constituting
A set of upper fixture (4) and a set of lower fixture (5).
5. the full pipe sample stress-rupture tester fixture of a kind of small diameter metal thin-wall tube according to claim 4, feature exist
In upper fixture (4) and lower fixture (5) pass through connecting screw (6) on connection screw thread (16) and endurance testing machine and persistently examination respectively
Test connecting screw under machine (7) threaded connection.
6. the full pipe sample stress-rupture tester fixture of a kind of small diameter metal thin-wall tube according to claim 1, feature exist
When, use state, the main body of small diameter metal thin-wall tube sample (3) is arranged in endurance testing machine hot plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820812132.8U CN208187846U (en) | 2018-05-29 | 2018-05-29 | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820812132.8U CN208187846U (en) | 2018-05-29 | 2018-05-29 | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208187846U true CN208187846U (en) | 2018-12-04 |
Family
ID=64428757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820812132.8U Active CN208187846U (en) | 2018-05-29 | 2018-05-29 | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208187846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844810A (en) * | 2018-05-29 | 2018-11-20 | 西安热工研究院有限公司 | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube |
| CN114235554A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Fluoroplastic pipe tensile strength testing device |
-
2018
- 2018-05-29 CN CN201820812132.8U patent/CN208187846U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844810A (en) * | 2018-05-29 | 2018-11-20 | 西安热工研究院有限公司 | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube |
| CN114235554A (en) * | 2021-12-13 | 2022-03-25 | 陕西航空电气有限责任公司 | Fluoroplastic pipe tensile strength testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108844810A (en) | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube | |
| CN108548716B (en) | A kind of pole test specimen high temperature push-pull fatigue test cramp and test method | |
| CN104390856B (en) | Clamp for metal thin-wall whole segment tube axial tension and compression fatigue test | |
| CN104792612B (en) | A kind of high temperature push-pull fatigue test cramp of hollow pole test specimen | |
| CN208187846U (en) | A kind of full pipe sample stress-rupture tester fixture of small diameter metal thin-wall tube | |
| CN101949796B (en) | Multi-function extension clamp for material fatigue test | |
| CN101526451A (en) | High temperature fatigue test clamp for metal thin wall equal-wall thickness tube | |
| CN211401923U (en) | Clamp for tensile test of round bar-shaped sample piece | |
| WO2021013116A1 (en) | High-temperature and high-pressure water slow tensile stress corrosion test system for metal tube full-tube sample | |
| CN207556980U (en) | A kind of separate type Hopkinson pull rod test fixture | |
| CN107132086A (en) | A kind of preparation method of drawing by high temperature sample | |
| CN111060390A (en) | High-efficiency high-temperature stretching clamping device and testing method | |
| CN207650011U (en) | Sheet metal high temperature tensile clamp | |
| CN203191255U (en) | Axial tensile test harness and matched clamp | |
| CN109724873A (en) | A kind of CT sample crack expansion test fixture adapting to Tensile or Compressive Loading | |
| CN107941606A (en) | A kind of separate type Hopkinson pull rod test fixture | |
| CN217237477U (en) | Metal thin-wall pipe fatigue test clamp assembly | |
| CN210893928U (en) | Clamp for dumbbell-shaped test sample | |
| CN207730569U (en) | Pipe fitting total cross-section tension test tooling | |
| CN110057666A (en) | Pipe fitting total cross-section tension test tooling and its application method | |
| CN205861455U (en) | Sheet material unidirectional heat tensile test fixture | |
| CN111442974A (en) | Clamping device for thin-wall steel pipe tensile test | |
| CN211697236U (en) | High-efficient high-temperature stretching clamping device | |
| CN201382879Y (en) | High temperature fatigue test fixture for metal pipe with equal thin-wall thickness | |
| CN110044720A (en) | A kind of multi-functional clamp suitable for nonstandard small sample creep performance test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |