CN101957293A - Combined loading expansion test device for entity expansion pipe - Google Patents
Combined loading expansion test device for entity expansion pipe Download PDFInfo
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- CN101957293A CN101957293A CN 201010285911 CN201010285911A CN101957293A CN 101957293 A CN101957293 A CN 101957293A CN 201010285911 CN201010285911 CN 201010285911 CN 201010285911 A CN201010285911 A CN 201010285911A CN 101957293 A CN101957293 A CN 101957293A
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Abstract
The invention relates to a combined loading expansion test device for an entity expansion pipe, comprising a loading frame, an expansion test system, an expansion clamping system and a sensor system, wherein the expansion test system is fixed on the loading frame, and one side of the loading frame is provided with the expansion clamping system. The invention has simple and reliable structure, can supply axial controllable mechanical tensile load of 0-2000kN and hydraulic pressure of 0-80Mpa, can realize the mechanical tensile expansion or hydraulic expansion or mechanical tensile and hydraulic pressure composite expansion test for the entity expansion whole pipe, can measure the displacement, the tensile load and the hydraulic pressure in an expansion test process and the radial deformation data of the entity expansion pipe in real time, can satisfy the expansion test of various sizes of entity expansion whole pipes or entity expansion pipe connecting structures, effectively avoids horizontal destabilization in a test process and provides an effective test device for detecting expansion performance, evaluating a research, improving the whole pipe structure and optimizing an expansion technology for the entity expansion pipe.
Description
Technical field
The present invention relates to solid expansion pipe technical field in the industrial gas oil, be particularly related to a kind of device that the solid expansion pipe expansion character is estimated, this device is used in experiment lab simulation field working conditions solid expansion pipe being carried out the research of multiple compound loading mode bloating test, can be used for developing bulged tube tubing and kit simultaneously.
Background technology
Solid expansion pipe SET (Solid Expandable Tubular) technology is to realize that " saving " size of the hole is a purpose, string of casing to be expanded radially into a kind of drilling well, completion and the well workover new technology of desired diameter dimension in well.Using this technology can bring the influence and the great technical economic benefit of " revolutionary character " for the drilling well and the hole structure of deep-well, complex geological condition so that the sleeve pipe number of plies that is lowered to increases.It can become well " thin " cost of development of significantly demoting.It becomes possibility with " single hole diameter ".The solid expansion pipe technology is very fast in whole world development and application, now successfully the solid expansion pipe technology is applied to aspects such as uncased hole completion, expansion sleeve subsidy and expansion tail tube hanging abroad.This technology is monopolized by a few company at present.
Solid expansion pipe has many gordian techniquies, as: solid expansion pipe tubing technology, bulged tube interconnection technique, solid expansion pipe detection technique and other supporting technologies etc., offshore company is in the R﹠D process of bulged tube series of products, set up more perfect detection technique system, ensured the safe reliability of its bulged tube Related product, and manage as secret of the trade, the cost of technology introduction is higher.The bulged tube product of domestic development, it is demand according to expansion process, after body and bloat tool assembling, the relevant object performance experiments such as interior pressure, sealing of holding have been carried out on ground, shortage is carried out the device of expansion performance experiment to solid expansion pipe, can't guarantee to expand body in down-hole military service process safe reliability, be unfavorable for simultaneously the solid expansion pipe controllable quality, this also be domestic bulged tube technology with external similar technology between important gap.
Summary of the invention
Purpose of the present invention provides a kind of solid expansion pipe compound loading bloating test device with regard to being based under the above-mentioned background.The present invention can apply multiple combined load to solid expansion pipe and carry out bloating test, can carry out hydraulic buckling, mechanical swelling, mechanical-hydraulic compound loading bloating test to the solid expansion pipe simulation job operating mode of plurality of specifications.
Technical solution of the present invention is: a kind of solid expansion pipe compound loading bloating test device, comprise the loading frame, the bloating test system, the expansion grasping system, sensing system, load frame by end floor beam (15), guide rail (2), guiding crossbeam (3), middle cross beam (8), frame side wall (26) is formed, guiding crossbeam (3) and middle cross beam (8) can move axially along guide rail (2), middle cross beam (8) transversely is provided with hydraulic pressure pin (24), can be connected with the pin-and-hole (9) on the frame side wall (26) and make middle cross beam (8) fixing, the bloating test system comprises hydraulic jack (1), piston rod (23), pull bar (6), expansion cone (17), locating flange (16) and high pressure water injection mechanism (21), hydraulic jack (1), piston rod (23), pull bar (5), expansion cone (17) connects and composes mechanical stretching expansion experimental provision in turn, locating flange (16), high pressure water injection mechanism (21) and expansion cone (17) constitute the hydraulic buckling experimental provision, the expansion grasping system comprises that three grab chuck (10), play bloated floating clamp (12), expansion anchor clamps (20) and locating flange (16), three grab chuck (10) and play bloated floating clamp (12) the sizing expansion clamping device of clamping test sample (11) when playing bloated test as the end, the reducing expansion clamping device of expansion anchor clamps (20) and locating flange (16) clamping test sample (11) during as the bulged tube bloating test, sensing system comprises displacement transducer (25), force transducer (4), radial deformation sensor (13) and hydraulic pressure transducer (22), the bloating test system is installed in and loads on the frame, load frame one side and be provided with the expansion grasping system, expansion grasping system clamping test sample (11), displacement transducer (25) is located on the piston rod (23), guiding crossbeam (3) is provided with force transducer (4), sample (11) outside surface of expansion grasping system clamping is along being circumferentially with 2～8 radial deformation sensors (13), and seal flange (19) is provided with hydraulic pressure transducer (22).
Described bloating test system comprises hydraulic jack (1), piston rod (23), replaceable pull bar (6), expansion cone (17), expansion cone jointing (14), end seal flange (19), locating flange (16) and high pressure water injection mechanism (21), mechanical stretching expansion experimental provision is made of following part: guiding crossbeam (3) one ends are connected with hydraulic jack (1) by piston rod (23), the other end of guiding crossbeam (3) is by linkwork (5) cylinder lever connecting rod 6, pull bar (6) below is provided with supports dolly (7), and the other end of pull bar (6) is connected with expansion cone (17) by expansion cone jointing (14); Locating flange (16) is provided with high pressure water injection mechanism (21) and expansion cone (17) constitutes the hydraulic buckling experimental provision.
Described expansion grasping system comprises that three grab chuck (10), bloated floating clamp (12), expansion anchor clamps (20) and locating flange (16), middle cross beam (8) and three is grabbed chuck (10) welding and is fixedlyed connected, three grab chuck (10) and play bloated floating clamp (12) and work the sizing expansion clamping device of clamping test sample (11) when expanding test as the end, and three grab chuck (10) and locating flange (16) fixes sample (11) and guarantee that sample (11) center is coaxial with piston rod (23) center; Playing bloated floating clamp (12) is connected with the loading frame by the pin-and-hole (9) that loads on the frame side wall, expansion anchor clamps (20) are installed on the base of frame, the reducing expansion clamping device of expansion anchor clamps (20) and locating flange (16) clamping test sample (11) during as the bulged tube bloating test.
The invention has the beneficial effects as follows: the present invention is simple and reliable for structure, the axial controllable mechanical tensile load of 0～2000kN and the hydraulic coupling of 0～80Mpa can be provided, cooperate corresponding expansion conehead, can realize the solid expansion pipe homogeneous tube is carried out mechanical stretching expansion or hydraulic buckling or mechanical stretching and the composite expanded test of hydraulic pressure, and the displacement that can measure expansion cone in the bloating test process in real time, tensile load, hydraulic pressure and solid expansion pipe radial deformation data, loading frame of the present invention and expansion grasping system can satisfy all size solid expansion pipe homogeneous tube or solid expansion pipe syndeton bloating test, and in process of the test, avoided horizontal unstability effectively, for the solid expansion pipe expansion character detects, research evaluation, homogeneous tube architecture advances and expansion process optimization provide a kind of laboratory testing rig effectively.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 for the present invention to solid expansion pipe composite expanded when test structural representation.
Fig. 3 is an A-A sectional view among Fig. 1.
Fig. 4 is a B-B sectional view among Fig. 1.
Fig. 5 is a C-C sectional view among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the invention in detail.
The present invention is made of loading frame, bloating test system, expansion grasping system, sensing system.Load frame by end floor beam 15, guide rail 2, guiding crossbeam 3, middle cross beam 8, frame side wall 26 is formed, guiding crossbeam 3 and middle cross beam 8 can move axially along guide rail 2, middle cross beam 8 transversely is provided with hydraulic pressure pin 24, can be connected with the pin-and-hole 9 on the frame side wall 26 and make middle cross beam 8 fixing, the bloating test system comprises hydraulic jack 1, piston rod 23, pull bar 6, expansion cone 17, locating flange 16 and high pressure water injection mechanism 21, hydraulic jack 1, piston rod 23, pull bar 5, expansion cone 17 connects and composes mechanical stretching expansion experimental provision in turn, locating flange 16, high pressure water injection mechanism 21 and expansion cone 17 constitute the hydraulic buckling experimental provision, the expansion grasping system comprises that three grab chuck 10, play bloated floating clamp 12, expansion anchor clamps 20 and locating flange 16, three grab chuck 10 and play bloated floating clamp 12 the sizing expansion clamping device of clamping test sample 11 when playing bloated test as the end, the reducing expansion clamping device of expansion anchor clamps 20 and locating flange 16 clamping test sample 11 during as the bulged tube bloating test, sensing system comprises displacement transducer 25, force transducer 4, radial deformation sensor 13 and hydraulic pressure transducer 22, the bloating test system is fixedly mounted on and loads on the frame, load frame side wall (26) and be provided with the expansion grasping system, expansion grasping system clamping test sample 11, displacement transducer 25 is located on the piston rod 23, guiding crossbeam 3 is provided with force transducer 4, sample 11 outside surfaces of expansion grasping system clamping are along being circumferentially with 2～8 radial deformation sensors 13, and seal flange 19 is provided with hydraulic pressure transducer 22.
Load frame and adopt horizontal type structure, form by end floor beam 15, guide rail 2, guiding crossbeam 3, middle cross beam 8, frame side wall (26), load frame and adopt the steel welding structure, annealed processing, can satisfy the maximum load of 2000KN, on frame side wall (26), a series of pin-and-holes 9 of equidistant placement are used to install the expansion grasping system; Loading frame top and right side design has protective cover 18, but left and right sides push-and-pull, and the injury that fluid power and mechanical force cause in the time of both can preventing to meet accident in the process of the test does not influence the loading and unloading of sample again.
The bloating test system comprises hydraulic jack 1, piston rod 23, replaceable pull bar 6, expansion cone 17, expansion cone jointing 14, end seal flange 19, locating flange 16 and high pressure water injection mechanism 21.Mechanical stretching expansion experimental provision is made of following part: guiding crossbeam 3 left ends link to each other with 2000KN hydraulic jack 1 by piston rod 23, piston rod 23 adopts the riveted joint modes to be connected on the guiding crossbeam 3, can prevent piston when to-and-fro movement owing to transverse load is swung; The right-hand member of guiding crossbeam 3 supports dolly 7 below pull bar 6 by linkwork 5 cylinder lever connecting rods 6, but in process of the test tie-strut 6; The other end of pull bar 6 is connected with expansion cone 17 in the mode that is threaded by expansion cone jointing 14.Locating flange (16) is provided with high pressure water injection mechanism (21) and expansion cone (17) constitutes the hydraulic buckling experimental provision.
The expansion grasping system by three grab chuck 10, play bloated floating clamp 12, expansion anchor clamps 20, locating flange 16 form; Middle cross beam 8 and three is grabbed chuck 10 and is weldingly connected, its centre longitudinally connects and can allow pull bar 6 pass through, three grab chuck 10 and play bloated floating clamp 12 and work the sizing expansion clamping device of clamping test sample 11 when expanding test as the end, and three to grab chuck 10 and locating flange 16 fixing and guarantee that the sample center is coaxial with piston rod 23 centers with sample 11; Play bloated floating clamp 12 and wear the pin loading and unloading by pin-and-hole 9 hydraulic pressure that load on the frame side wall, be used for sample 11 being carried out the sizing clamping in a bloated process, expansion anchor clamps 20 are installed on the base of frame, expansion anchor clamps 20 are provided with spring device, can realize expands to add to the reducing of bulged tube sample 11 holds, the reducing expansion clamping device of expansion anchor clamps 20 and locating flange 16 clamping test sample 11 during as the bulged tube bloating test.Can adapt to certain caliber changes.For prevented to expand and expansion process in the stressed unstability of sample take place laterally to move, play position and clamping diameter that bloated floating clamp 12 and expansion anchor clamps 20 can be adjusted anchor clamps according to the diameter and the length of sample.
Sensing system comprises displacement transducer 25, force transducer 4, radial deformation sensor 13 and hydraulic pressure transducer 22.Wherein displacement transducer 25 is built in the piston rod 23, and motion is not subjected to extraneous interference flexibly; Force transducer 4 is fixed on the guiding crossbeam 3, makes the tensile force value accurately and not be subjected to the influence of various friction force; Radial deformation sensor 13 is fixed along circumferential at the outside surface of sample 11,2～8 of quantity, and adjustable positions can be measured solid expansion pipe stress and strain radially; Hydraulic pressure transducer 22 is installed on the end seal flange 19, can measure hydraulic pressure in the hydraulic buckling process.
During the bulged tube bloating test; open protective cover 18; pull bar 6 is penetrated bulged tube sample 11 inside; pull bar 6 and bulged tube sample 11 are hung in the device right side together, and chuck 10 is grabbed in control three and locating flange 16 is fixing with bulged tube sample 11, guarantees that sample 11 centers are coaxial with piston rod 23 centers; adjust middle cross beam 8 positions; sample 11 right-hand members stretch out locating flange 16 outer 700～800mm, and pull bar 6 right-hand members are by expansion cone on the screw fit 17, and left end is connected with guiding crossbeam 3 by articulated manner 5.
The bloated floating clamp 12 of having packed in the pin-and-hole 9 on loading frame side wall, adjust the anchor clamps 12 clamping diameters merging firm grip that conforms to bulged tube sample 11 external diameters, radial deformation sensor 13 is fixed on the outside surface of bulged tube sample 11,4 groups of number of sensors, spacing 1000mm.
Close protective cover 18, the hydraulic pressure pin 24 on the middle cross beam 8 is penetrated pin-and-hole 9, control oil cylinder 1 piston rod 23 drives guiding crossbeams 3, from right to left sample 11 is carried out the end by pull bar 6 traction expansion cone 17 and rises bloatedly, plays bloated length 500mm.
After playing bloated finishing, 11 on bulged tube sample expands and holds welding end seal flange 19, hydraulic pressure pin 24 on the middle cross beam 8 is regained from pin-and-hole 9, control middle cross beam 8 and guiding crossbeam 3 move to left, and end seal flange 19 is fixed on the locating flange 16, shed bloated floating clamp 12 from loading in the pin-and-hole 9 on the frame side wall, expansion anchor clamps 20 close, three grab chuck 10 unclamps and moves to left, and this moment, bulged tube sample 11 right-hand members were fixed, left end and freedom radially.
Inject that the hydraulic pressure water promote that expansion cone 17 expansion samples 11 or oil cylinder 1 drive by piston rod 23 and guiding crossbeam 3 that 17 pairs of solid expansion pipe samples 11 of pull bars 6 drawn expanded awl expand or both cooperate synchronously and carry out by high pressure water injection pipe 21, by the tensile load of control oil cylinder 1 or the pressure of high pressure water injection pipe 21 injection hydraulic pressure water, perhaps the speed of expansion cone 17 is carried out bloating test, when being expanded to expansion cone 17 when bulged tube sample 11 left ends are deviate from, finish bloating test.
Sensing system record and 17 displacements of output expansion cone, speed of expansion, tensile load, hydraulic pressure size and solid expansion pipe sample stress and strain are radially realized the solid expansion pipe expansion character is carried out test evaluation in the process of the test.
The present invention is simple in structure, safe and reliable, can carry out composite expanded test to the bulged tube of different size, different grade of steel, different expansivitys, is with a wide range of applications.
The present invention can realize the bloating test of the composite expanded three kinds of modes of mechanical stretching expansion, hydraulic buckling, mechanical stretching and hydraulic pressure.
The present invention adopts micro electronmechanical fluid servo system control mode realizable force, displacement closed-loop control, and dual mode can take over seamlessly.
Claims (3)
1. solid expansion pipe compound loading bloating test device, comprise the loading frame, the bloating test system, the expansion grasping system, sensing system, it is characterized in that: load frame by end floor beam (15), guide rail (2), guiding crossbeam (3), middle cross beam (8), frame side wall (26) is formed, guiding crossbeam (3) and middle cross beam (8) can move axially along guide rail (2), middle cross beam (8) transversely is provided with hydraulic pressure pin (24), can be connected with the pin-and-hole (9) on the frame side wall (26) and make middle cross beam (8) fixing, the bloating test system comprises hydraulic jack (1), piston rod (23), pull bar (6), expansion cone (17), locating flange (16) and high pressure water injection mechanism (21), hydraulic jack (1), piston rod (23), pull bar (5), expansion cone (17) connects and composes mechanical stretching expansion experimental provision in turn, locating flange (16), high pressure water injection mechanism (21) and expansion cone (17) constitute the hydraulic buckling experimental provision, the expansion grasping system comprises that three grab chuck (10), play bloated floating clamp (12), expansion anchor clamps (20) and locating flange (16), three grab chuck (10) and play bloated floating clamp (12) the sizing expansion clamping device of clamping test sample (11) when playing bloated test as the end, the reducing expansion clamping device of expansion anchor clamps (20) and locating flange (16) clamping test sample (11) during as the bulged tube bloating test, sensing system comprises displacement transducer (25), force transducer (4), radial deformation sensor (13) and hydraulic pressure transducer (22), the bloating test system is installed in and loads on the frame, load frame one side and be provided with the expansion grasping system, expansion grasping system clamping test sample (11), displacement transducer (25) is located on the piston rod (23), guiding crossbeam (3) is provided with force transducer (4), sample (11) outside surface of expansion grasping system clamping is along being circumferentially with 2～8 radial deformation sensors (13), and seal flange (19) is provided with hydraulic pressure transducer (22).
2. a kind of solid expansion pipe compound loading bloating test device as claimed in claim 1, it is characterized in that: described bloating test system comprises hydraulic jack (1), piston rod (23), replaceable pull bar (6), expansion cone (17), expansion cone jointing (14), end seal flange (19), locating flange (16) and high pressure water injection mechanism (21), mechanical stretching expansion experimental provision is made of following part: guiding crossbeam (3) one ends are connected with hydraulic jack (1) by piston rod (23), the other end of guiding crossbeam (3) is by linkwork (5) cylinder lever connecting rod 6, pull bar (6) below is provided with supports dolly (7), and the other end of pull bar (6) is connected with expansion cone (17) by expansion cone jointing (14); Locating flange (16) is provided with high pressure water injection mechanism (21) and expansion cone (17) constitutes the hydraulic buckling experimental provision.
3. a kind of solid expansion pipe compound loading bloating test device as claimed in claim 1, it is characterized in that: described expansion grasping system comprises that three grab chuck (10), play bloated floating clamp (12), expansion anchor clamps (20) and locating flange (16), middle cross beam (8) and three is grabbed chuck (10) and is fixedlyed connected, three grab chuck (10) and play bloated floating clamp (12) and work the sizing expansion clamping device of clamping test sample (11) when expanding test as the end, and three grab chuck (10) and locating flange (16) fixes sample (11) and guarantee that sample (11) center is coaxial with piston rod (23) center; Playing bloated floating clamp (12) is connected with the loading frame by the pin-and-hole (9) that loads on the frame side wall, expansion anchor clamps (20) are installed on the base of frame, the reducing expansion clamping device of expansion anchor clamps (20) and locating flange (16) clamping test sample (11) during as the bulged tube bloating test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102859115A CN101957293B (en) | 2010-09-17 | 2010-09-17 | Combined loading expansion test device for entity expansion pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102859115A CN101957293B (en) | 2010-09-17 | 2010-09-17 | Combined loading expansion test device for entity expansion pipe |
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| CN101957293A true CN101957293A (en) | 2011-01-26 |
| CN101957293B CN101957293B (en) | 2012-01-18 |
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| CN2010102859115A Expired - Fee Related CN101957293B (en) | 2010-09-17 | 2010-09-17 | Combined loading expansion test device for entity expansion pipe |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419289A (en) * | 2011-12-21 | 2012-04-18 | 西安三维应力工程技术有限公司 | Full-size complex load mechanical testing machine of petroleum pipe |
| CN103015976A (en) * | 2013-01-16 | 2013-04-03 | 西南石油大学 | Test method for simulating restoration of deformation sleeve under stratum confining pressure |
| CN103558087A (en) * | 2013-10-18 | 2014-02-05 | 常州大学 | Tube wall plane indentation residual thickness bulging device and method for tube mechanical property test |
| CN106053228A (en) * | 2016-07-12 | 2016-10-26 | 中国重型机械研究院股份公司 | Axial hot stretch flexible composite plastic high-pressure delivery pipe testing device |
| CN108225944A (en) * | 2018-01-22 | 2018-06-29 | 西南交通大学 | A kind of rubble railway ballast direct shear test instrument |
| CN109632497A (en) * | 2018-12-13 | 2019-04-16 | 大港油田集团有限责任公司 | It is a kind of for expanding the experimental provision and experimental method of tube swelling |
| CN109668779A (en) * | 2019-02-16 | 2019-04-23 | 北京工业大学 | A kind of tension test method surveys the grip device of restraint zone plane plate specimen mechanical property |
| CN110487640A (en) * | 2019-07-31 | 2019-11-22 | 西南石油大学 | A kind of variable diameter expansion cone experimental rig |
| CN110618162A (en) * | 2018-06-19 | 2019-12-27 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe expansion performance experimental device and experimental method thereof |
| US10641067B2 (en) | 2015-12-30 | 2020-05-05 | China National Petroleum Corporation | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology |
| CN112485135A (en) * | 2020-10-30 | 2021-03-12 | 中国直升机设计研究所 | Fatigue test device and verification method for rigid rotor wing composite material long pull rod |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419289A (en) * | 2011-12-21 | 2012-04-18 | 西安三维应力工程技术有限公司 | Full-size complex load mechanical testing machine of petroleum pipe |
| CN103015976A (en) * | 2013-01-16 | 2013-04-03 | 西南石油大学 | Test method for simulating restoration of deformation sleeve under stratum confining pressure |
| CN103015976B (en) * | 2013-01-16 | 2015-04-22 | 西南石油大学 | Test method for simulating restoration of deformation sleeve under stratum confining pressure |
| CN103558087A (en) * | 2013-10-18 | 2014-02-05 | 常州大学 | Tube wall plane indentation residual thickness bulging device and method for tube mechanical property test |
| CN103558087B (en) * | 2013-10-18 | 2015-07-22 | 常州大学 | Tube wall plane indentation residual thickness bulging device and method for tube mechanical property test |
| US10641067B2 (en) | 2015-12-30 | 2020-05-05 | China National Petroleum Corporation | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology |
| CN106053228A (en) * | 2016-07-12 | 2016-10-26 | 中国重型机械研究院股份公司 | Axial hot stretch flexible composite plastic high-pressure delivery pipe testing device |
| CN106053228B (en) * | 2016-07-12 | 2018-11-27 | 中国重型机械研究院股份公司 | A kind of axial direction hot-stretch flexible compound plastic high voltage delivery pipe experimental rig |
| CN108225944A (en) * | 2018-01-22 | 2018-06-29 | 西南交通大学 | A kind of rubble railway ballast direct shear test instrument |
| CN110618162B (en) * | 2018-06-19 | 2022-01-18 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe expansion performance experimental device and experimental method thereof |
| CN110618162A (en) * | 2018-06-19 | 2019-12-27 | 中国石油化工股份有限公司 | Self-expansion sand control screen pipe expansion performance experimental device and experimental method thereof |
| CN109632497A (en) * | 2018-12-13 | 2019-04-16 | 大港油田集团有限责任公司 | It is a kind of for expanding the experimental provision and experimental method of tube swelling |
| CN109632497B (en) * | 2018-12-13 | 2022-03-22 | 大港油田集团有限责任公司 | Experimental device and experimental method for expansion of expansion pipe |
| CN109668779A (en) * | 2019-02-16 | 2019-04-23 | 北京工业大学 | A kind of tension test method surveys the grip device of restraint zone plane plate specimen mechanical property |
| CN109668779B (en) * | 2019-02-16 | 2021-07-16 | 北京工业大学 | Clamp device for measuring mechanical property of fastening belt flat plate sample by tensile test method |
| CN110487640A (en) * | 2019-07-31 | 2019-11-22 | 西南石油大学 | A kind of variable diameter expansion cone experimental rig |
| CN110487640B (en) * | 2019-07-31 | 2024-04-05 | 西南石油大学 | Reducing expansion cone test device |
| CN112485135A (en) * | 2020-10-30 | 2021-03-12 | 中国直升机设计研究所 | Fatigue test device and verification method for rigid rotor wing composite material long pull rod |
| CN112485135B (en) * | 2020-10-30 | 2022-09-13 | 中国直升机设计研究所 | Fatigue test device and verification method for rigid rotor wing composite material long pull rod |
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| CN101957293B (en) | 2012-01-18 |
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