CN107631943A - A kind of tubing experimental rig of resistance to Rapid Crack - Google Patents
A kind of tubing experimental rig of resistance to Rapid Crack Download PDFInfo
- Publication number
- CN107631943A CN107631943A CN201610797243.1A CN201610797243A CN107631943A CN 107631943 A CN107631943 A CN 107631943A CN 201610797243 A CN201610797243 A CN 201610797243A CN 107631943 A CN107631943 A CN 107631943A
- Authority
- CN
- China
- Prior art keywords
- baffle plate
- tubing
- sealing ring
- decompressing baffle
- ring
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 87
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 238000009434 installation Methods 0.000 claims abstract description 29
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of tubing experimental rig of resistance to Rapid Crack, including installation axle, decompressing baffle plate and sealing ring.The decompressing baffle plate is multiple, and the decompressing baffle plate is installed in the installation axle along the installation axle axial direction interval.The sealing ring is multiple, and the sealing ring is corresponding one by one to the decompressing baffle plate.The seal ring set is located in the installation axle, and the sealing ring is connected with the decompressing baffle plate, and the external diameter of the sealing ring is more than the external diameter of the decompressing baffle plate, and the sealing ring is flexible.The above-mentioned tubing experimental rig of resistance to Rapid Crack, elastically-deformable sealing ring can occur by being set on decompressing baffle plate, so after experiment tubing is loaded, sealing ring just can be used in blocking decompressing baffle plate and test the gap between tubing madial wall, do not influenceed so as to pressure in guarantee test tubing metering section by decompressing baffle plate and experiment tubing madial wall gap so that the result of the test of crack expansion test is relatively reliable.
Description
Technical field
The present invention relates to a kind of crack expansion test device, more particularly, to a kind of resistance to Rapid Crack experiment dress of tubing
Put.
Background technology
Traditional tubing experimental rig of resistance to Rapid Crack is arranged at intervals with multiple decompressions in metering section corresponding position
Baffle plate, and control decompressing baffle plate and test the gap between tubing madial wall, convenient tubing of testing loads, but the presence meeting in gap
Make the pressure of metering section during experiment reduce, then the energy for driving crackle further to control also lowers therewith.The size in gap
Influenceed by pipe internal diameter and decompressing baffle plate external diameter manufacture deviation, will so have influence on the reliability and repeatability of test data.
The content of the invention
Based on this, the defects of the invention reside in prior art is overcome, there is provided a kind of resistance to Rapid Crack experiment dress of tubing
Put, it can improve the reliability and repeatability of test data.
Its technical scheme is as follows：A kind of tubing experimental rig of resistance to Rapid Crack, including：Installation axle；Decompressing baffle plate, institute
Decompressing baffle plate is stated to be multiple, the decompressing baffle plate is installed in the installation axle along the installation axle axial direction interval；It is and close
Seal ring, the sealing ring are multiple, and the sealing ring is corresponding one by one to the decompressing baffle plate, and the seal ring set is located at the peace
Fill on axle, the sealing ring is connected with the decompressing baffle plate, and the external diameter of the sealing ring is more than the external diameter of the decompressing baffle plate, institute
It is flexible to state sealing ring.
In one of the embodiments, the tubing experimental rig of resistance to Rapid Crack also includes multiple retainer rings, institute
It is corresponding one by one to the decompressing baffle plate to state retainer ring, the Fixing shrink ring is located in the installation axle, and the sealing ring passes through solid
Determine ring to be fixed on the decompressing baffle plate.
In one of the embodiments, the sealing ring both sides contact the decompressing baffle plate and the retainer ring, institute respectively
Retainer ring is stated to be fixed on the decompressing baffle plate by fastener.
In one of the embodiments, the retainer ring is integrally formed with the decompressing baffle plate, and the retainer ring and institute
Decompressing baffle plate is stated to be fixed in the neck formed with the neck for sealing ring described in clamping, the sealing ring.
In one of the embodiments, the sealing ring is integrally formed with the decompressing baffle plate, the thickness of the sealing ring
Less than the thickness of the decompressing baffle plate.
In one of the embodiments, the sealing ring is elastomeric material；The decompressing baffle plate is provided with check valve, the list
The experiment tubing is flowed to the gas that valve is used in Control experiment tubing from the crack expansion test end of the experiment tubing
The other end.
In one of the embodiments, the outer diameter D of the sealing ring and the internal diameter minimum value d of experiment tubingminRelation
For：1.01dmin≤D≤1.03dmin, wherein, the internal diameter minimum value dminFor inner diameter values minimum in the experiment tubing.
In one of the embodiments, the tubing experimental rig of resistance to Rapid Crack also includes mounting seat with hitting
Part, the mounting seat are connected with the installation axle, and the mounting seat is provided with groove, and the ram is relative with the groove to be set
Put.
In one of the embodiments, the tubing experimental rig of resistance to Rapid Crack also includes the first end socket and second
End socket, first end socket are detachably connected with the mounting seat end, and second end socket is with the installation axle away from described
One end of mounting seat is detachably connected, and first end socket, second end socket are connected with experiment tubing end part seal.
In one of the embodiments, the tubing experimental rig of resistance to Rapid Crack also includes multiple limitation rings, institute
State limitation ring to be arranged in the installation axle, the internal diameter of the limitation ring is more than the external diameter of the sealing ring.
Principle, the effect of the present invention are further illustrated with reference to above-mentioned technical proposal：
1st, the above-mentioned tubing experimental rig of resistance to Rapid Crack, elastic deformation can occur by being set on decompressing baffle plate
Sealing ring, so after loading and testing tubing, sealing ring just can be used in blocking decompressing baffle plate with test tubing madial wall it
Between gap, so as to pressure in guarantee test tubing metering section not by decompressing baffle plate and experiment tubing madial wall gap
Influence so that the result of the test of crack expansion test is relatively reliable.
2nd, retainer ring is corresponding one by one to decompressing baffle plate, and Fixing shrink ring is set on the mounting shaft, and sealing ring is fixed by retainer ring
On decompressing baffle plate.Fastening effect by retainer ring to sealing ring, sealing ring is installed on decompressing baffle plate to be consolidated, and is not easy to pine
It is de-.
3rd, sealing ring both sides contact decompressing baffle plate and retainer ring respectively, and retainer ring is fixed on decompressing baffle plate by fastener
On.Or retainer ring is integrally formed with decompressing baffle plate, and retainer ring and decompressing baffle plate are formed with the card for clamping sealing ring
Groove.Sealing ring is fixed in neck.In this way, being easy to the disassembling operations of sealing ring, conveniently sealing ring can be repaired in time
Replacement operation.
4th, sealing ring and decompressing baffle plate are integrally formed, and the thickness of sealing ring is less than the thickness of decompressing baffle plate.Sealing ring is rubber
Glue material.When the thickness of slab of sealing ring is smaller, during loading experiment tubing, it can be easy to load and try to carry out respective curved
Tubing is tested, and the sealing between sealing ring and experiment tubing madial wall is higher.
5th, the outer diameter D of sealing ring and the internal diameter minimum value d of experiment tubingminRelation be：1.01dmin≤D≤1.03dmin
Wherein, internal diameter minimum value dminFor inner diameter values minimum in experiment tubing.In this way, sealing ring can eliminate decompressing baffle plate and developmental tube
Gap between material madial wall, and be easy to load experiment tubing.So, experiment tubing is just avoided to stitch caused by internal diameter error
Gap size variation and have influence on the reliability of the experimental result of crack expansion test and reasonability phenomenon so that the present invention is adapted to
Internal diameter has the experiment tubing of error.
6th, limitation ring is set on the mounting shaft, and the internal diameter of limitation ring is more than the external diameter of sealing ring.Limitation ring is avoided that experiment
Tubing outer collapse during crack expansion test hurts operating personnel, so as to can guarantee that the security of crack expansion test.
Brief description of the drawings
Fig. 1 is the tubing experimental rig of resistance to Rapid Crack structural representation one described in the embodiment of the present invention；
Fig. 2 is the tubing experimental rig of resistance to Rapid Crack structural representation two described in the embodiment of the present invention；
Fig. 3 is the tubing experimental rig of resistance to Rapid Crack structural representation three described in the embodiment of the present invention；
Fig. 4 is the tubing experimental rig of resistance to Rapid Crack structural representation four described in the embodiment of the present invention；
Fig. 5 is the structural representation that the tubing experimental rig of resistance to Rapid Crack described in the embodiment of the present invention is provided with experiment tubing
Figure one；
Fig. 6 is enlarged diagrams of the Fig. 5 at A；
Fig. 7 is the structural representation that the tubing experimental rig of resistance to Rapid Crack described in the embodiment of the present invention is provided with experiment tubing
Figure two.
Description of reference numerals：
10th, installation axle, 20, decompressing baffle plate, 21, check valve, 30, sealing ring, 40, retainer ring, 50, fastener, 60, installation
Seat, 61, groove, 70, ram, the 80, first end socket, the 90, second end socket, 100, limitation ring, 110, experiment tubing.
Embodiment
Embodiments of the invention are described in detail below：
As Fig. 1-5,7 it is any shown in, the tubing experimental rig of resistance to Rapid Crack described in the embodiment of the present invention, including peace
Fill axle 10, decompressing baffle plate 20 and sealing ring 30.The decompressing baffle plate 20 is multiple, and the decompressing baffle plate 20 is along the installation axle 10
Axial direction interval is installed in the installation axle 10.The sealing ring 30 is multiple, and the sealing ring 30 is kept off with the decompression
Plate 20 is corresponding one by one.The sealing ring 30 is set in the installation axle 10, the sealing ring 30 and the phase of decompressing baffle plate 20
Even, the external diameter of the sealing ring 30 is more than the external diameter of the decompressing baffle plate 20, and the sealing ring 30 is flexible.In installation axle 10
After upper loading experiment tubing 110, decompressing baffle plate 20 is interior positioned at experiment tubing 110 and can be used for the metering of Control experiment tubing 110
The degree of gas pressure moment rapid drawdown in crack expansion test at section.Sealing ring 30 is accordingly extruded curved by experiment tubing 110
Song, it can be used in blocking decompressing baffle plate 20 and test the gap between the madial wall of tubing 110, ensure decompressing baffle plate 20 and developmental tube
Sealing between the madial wall of material 110, and metering section is divided into several relatively closed chambers.In this way, in experiment tubing
On 110 before Crack Extension to the corresponding position of decompressing baffle plate 20, decompressing baffle plate 20 is by sealing ring with testing in tubing 110
The sealing of side wall coordinates, and can ensure the gas in decompressing baffle plate 20 to the experiment each chamber in one end of the tubing 110 away from Crack Extension
Pressure keeps constant.
The above-mentioned tubing experimental rig of resistance to Rapid Crack, elastic deformation can occur by being set on decompressing baffle plate 20
Sealing ring 30, so load test tubing 110 after, sealing ring 30 just can be used in block decompressing baffle plate 20 with test tubing
Gap between 110 madial walls, so as to pressure in the metering section of guarantee test tubing 110 not by decompressing baffle plate 20 and experiment
The influence in the madial wall gap of tubing 110 so that the result of the test of crack expansion test is relatively reliable.
Fig. 1 or 2 is referred to, the tubing experimental rig of resistance to Rapid Crack also includes multiple retainer rings 40.It is described solid
Determine ring 40 and the decompressing baffle plate 20 is corresponding one by one, the retainer ring 40 is set in the installation axle 10, the sealing ring 30
It is fixed on by retainer ring 40 on the decompressing baffle plate 20.Fastening effect by retainer ring 40 to sealing ring 30, sealing ring 30
Install and consolidate on decompressing baffle plate 20, be not easy to release.
Wherein, the both sides of sealing ring 30 contact the decompressing baffle plate 20 and the retainer ring 40, the retainer ring respectively
40 are fixed on the decompressing baffle plate 20 by fastener 50.In another middle one embodiment, the retainer ring 40 subtracts with described
Pressure baffle plate 20 is integrally formed, and the retainer ring 40 and the decompressing baffle plate 20 are formed with the card for sealing ring described in clamping 30
Groove.The sealing ring 30 is fixed in the neck.In this way, it is easy to the disassembling operations of sealing ring 30, can be conveniently in time to close
Seal ring 30 carries out maintenance replacement operation.
Referring to Fig. 3, the sealing ring 30 is integrally formed with the decompressing baffle plate 20, the thickness of the sealing ring 30 is less than
The thickness of the decompressing baffle plate 20.The sealing ring 30 is elastomeric material.When the thickness of slab of sealing ring 30 is smaller, load experiment tubing
During 110, it can be easy to load experiment tubing 110, and sealing ring 30 is with testing in tubing 110 to carry out respective curved
Sealing between side wall is higher.
In embodiments of the present invention, the outer diameter D of the sealing ring 30 and the internal diameter minimum value d of experiment tubing 110minPass
It is to be：
1.01dmin≤D≤1.03dmin.Wherein, internal diameter minimum value dminFor internal diameter minimum in the experiment tubing 110
Value.
In this way, sealing ring 30 can eliminate decompressing baffle plate 20 and test the gap between the madial wall of tubing 110, and it is easy to load
Test tubing 110.So, experiment tubing 110 gap size caused by internal diameter error is just avoided to change and have influence on crackle
The reliability of the experimental result of expanding test and reasonability phenomenon so that the present invention, which is adapted to internal diameter, has the experiment tubing of error
110。
Fig. 4 or 5 is referred to, the tubing experimental rig of resistance to Rapid Crack also includes mounting seat 60 and ram 70.
The mounting seat 60 is connected with the installation axle 10, and the mounting seat 60 is provided with groove 61.The ram 70 and the groove
61 are oppositely arranged.Ram 70 is shock blade.So, during crack expansion test, after ram 70 crashes through tubing, groove
61 pairs of rams 70 can play cushioning effect.
The tubing experimental rig of resistance to Rapid Crack also includes the first end socket 80 and the second end socket 90.First envelope
First 80 are detachably connected with the end of mounting seat 60, and second end socket 90 is with the installation axle 10 away from the mounting seat 60
One end be detachably connected.First end socket 80, second end socket 90 are connected with the experiment end part seal of tubing 110.First
End socket 80, the second end socket 90 are connected with the experiment end part seal of tubing 110, can be with the sealing property of guarantee test tubing 110.
Referring to Fig. 6, the decompressing baffle plate 20 is provided with check valve 21.The check valve 21 is used for Control experiment tubing 110
Interior gas flows to the other end of the experiment tubing 110 from the crack expansion test end of the experiment tubing 110.So,
, can be by testing the crack expansion test end of tubing 110 to developmental tube before carrying out crack expansion test to experiment tubing 110
Injection gas in material 110, the other end for the check valve flow direction experiment tubing 110 that gas passes through in decompressing baffle plate 20, so as to gas
It is filled in experiment tubing 110 between each adjacent decompressing baffle plate 20.After gas being injected into experiment tubing 110, decompressing baffle plate 20
In check valve can avoid gas reverse flow to the crack expansion test end for testing tubing 110, so as to guarantee test tubing
Air pressure balance in 110 between adjacent decompressing baffle plate 20, and during experiment during the decline of the left side cavity room pressure of decompressing baffle plate 20,
Closed check valve in decompressing baffle plate 20, so as to which the pressure in the right chamber of decompressing baffle plate 20 can keep constant.
Referring to Fig. 7, the tubing experimental rig of resistance to Rapid Crack also includes multiple limitation rings 100.The limitation
Ring 100 is arranged in the installation axle 10, and the internal diameter of the limitation ring 100 is more than the external diameter of the sealing ring 30.Limitation ring 100
It is avoided that experiment tubing 110 outer collapse during crack expansion test hurts operating personnel, so as to can guarantee that Crack Extension tries
The security tested.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. tubing experimental rig of resistance to Rapid Crack, it is characterised in that including：Installation axle；Decompressing baffle plate, the decompressing baffle plate are multiple, and the decompressing baffle plate is installed in institute along the installation axle axial direction interval State in installation axle；AndSealing ring, the sealing ring are multiple, and the sealing ring is corresponding one by one to the decompressing baffle plate, and the seal ring set is located at In the installation axle, the sealing ring is connected with the decompressing baffle plate, and the external diameter of the sealing ring is more than the decompressing baffle plate External diameter, the sealing ring are flexible.
- 2. the tubing experimental rig of resistance to Rapid Crack according to claim 1, it is characterised in that also including multiple fixations Ring, the retainer ring is corresponding one by one to the decompressing baffle plate, and the Fixing shrink ring is located in the installation axle, and the sealing ring leads to Retainer ring is crossed to be fixed on the decompressing baffle plate.
- 3. the tubing experimental rig of resistance to Rapid Crack according to claim 2, it is characterised in that the sealing ring both sides The decompressing baffle plate and the retainer ring are contacted respectively, and the retainer ring is fixed on the decompressing baffle plate by fastener.
- 4. the tubing experimental rig of resistance to Rapid Crack according to claim 2, it is characterised in that the retainer ring and institute Decompressing baffle plate is stated to be integrally formed, and the retainer ring and the decompressing baffle plate be formed with the neck for sealing ring described in clamping, The sealing ring is fixed in the neck.
- 5. the tubing experimental rig of resistance to Rapid Crack according to claim 1, it is characterised in that the sealing ring and institute State decompressing baffle plate to be integrally formed, the thickness of the sealing ring is less than the thickness of the decompressing baffle plate.
- 6. the tubing experimental rig of resistance to Rapid Crack according to any one of Claims 1 to 5, it is characterised in that described Sealing ring is elastomeric material；The decompressing baffle plate is provided with check valve, the gas that the check valve is used in Control experiment tubing from The crack expansion test end of the experiment tubing flows to the other end of the experiment tubing.
- 7. the tubing experimental rig of resistance to Rapid Crack according to claim 6, it is characterised in that outside the sealing ring Footpath D and experiment tubing internal diameter minimum value dminRelation be：1.01dmin≤D≤1.03dmin, wherein, the internal diameter minimum value dminFor inner diameter values minimum in the experiment tubing.
- 8. the tubing experimental rig of resistance to Rapid Crack according to claim 6, it is characterised in that also including mounting seat with Ram, the mounting seat are connected with the installation axle, and the mounting seat is provided with groove, and the ram is relative with the groove Set.
- 9. the tubing experimental rig of resistance to Rapid Crack according to claim 8, it is characterised in that also including the first end socket With the second end socket, first end socket is detachably connected with the mounting seat end, and second end socket and the installation axle are remote One end from the mounting seat is detachably connected, and first end socket, second end socket are connected with experiment tubing end part seal.
- 10. the tubing experimental rig of resistance to Rapid Crack according to claim 8, it is characterised in that also including multiple limits Ring processed, the limitation ring are arranged in the installation axle, and the internal diameter of the limitation ring is more than the external diameter of the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797243.1A CN107631943B (en) | 2016-08-31 | 2016-08-31 | Quick crack growth resistance test device for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610797243.1A CN107631943B (en) | 2016-08-31 | 2016-08-31 | Quick crack growth resistance test device for pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107631943A true CN107631943A (en) | 2018-01-26 |
| CN107631943B CN107631943B (en) | 2024-01-12 |
Family
ID=61113403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610797243.1A Active CN107631943B (en) | 2016-08-31 | 2016-08-31 | Quick crack growth resistance test device for pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631943B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050151107A1 (en) * | 2003-12-29 | 2005-07-14 | Jianchao Shu | Fluid control system and stem joint |
| CN202229891U (en) * | 2011-07-12 | 2012-05-23 | 北京建科汇峰科技有限公司 | Pipe pressure test seal ring |
| CN203455225U (en) * | 2013-09-13 | 2014-02-26 | 中国石油天然气股份有限公司 | Rapid tubular product crack propagation test specimen installer |
| CN103698206A (en) * | 2013-12-11 | 2014-04-02 | 广州市特种承压设备检测研究院 | Sealing clamp used for internal pressure resistance test of plastic pipe and using method of sealing clamp |
| CN205333491U (en) * | 2016-01-11 | 2016-06-22 | 广州特种承压设备检测研究院 | Crack growth test device |
| CN206114440U (en) * | 2016-08-31 | 2017-04-19 | 广州特种承压设备检测研究院 | Tubular product is able to bear or endure quick crack growth test device |
-
2016
- 2016-08-31 CN CN201610797243.1A patent/CN107631943B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050151107A1 (en) * | 2003-12-29 | 2005-07-14 | Jianchao Shu | Fluid control system and stem joint |
| CN202229891U (en) * | 2011-07-12 | 2012-05-23 | 北京建科汇峰科技有限公司 | Pipe pressure test seal ring |
| CN203455225U (en) * | 2013-09-13 | 2014-02-26 | 中国石油天然气股份有限公司 | Rapid tubular product crack propagation test specimen installer |
| CN103698206A (en) * | 2013-12-11 | 2014-04-02 | 广州市特种承压设备检测研究院 | Sealing clamp used for internal pressure resistance test of plastic pipe and using method of sealing clamp |
| CN205333491U (en) * | 2016-01-11 | 2016-06-22 | 广州特种承压设备检测研究院 | Crack growth test device |
| CN206114440U (en) * | 2016-08-31 | 2017-04-19 | 广州特种承压设备检测研究院 | Tubular product is able to bear or endure quick crack growth test device |
Non-Patent Citations (1)
| Title |
|---|
| 何芃: "燃气用埋地聚乙烯（PE）管道耐快速裂纹耐快速裂纹扩展（RCP）的试验评价", 化学工程与装备 * |
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| Publication number | Publication date |
|---|---|
| CN107631943B (en) | 2024-01-12 |
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Address after: 510663 No.9, Keke Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Special Equipment Testing and Research Institute (Guangzhou Special Equipment Accident Investigation Technology Center Guangzhou Elevator Safety Operation Monitoring Center) Country or region after: China Address before: 510663 No.9, Keke Road, Science City, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU SPECIAL PRESSURE EQUIPMENT INSPECTION AND Research Institute Country or region before: China |