CN105699181B - The self-locking whole tubing high temperature tension test fixture of inner wall - Google Patents
The self-locking whole tubing high temperature tension test fixture of inner wall Download PDFInfo
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- CN105699181B CN105699181B CN201510937950.1A CN201510937950A CN105699181B CN 105699181 B CN105699181 B CN 105699181B CN 201510937950 A CN201510937950 A CN 201510937950A CN 105699181 B CN105699181 B CN 105699181B
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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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Abstract
A kind of inner wall self-locking type entirety tubing high temperature tension test fixture disclosed by the invention, the sliding locking member of the whole tubing inboard wall of tube body of connector and locking including one end joint test machine pull rod, sliding locking member is expanded outwardly by upper end of slide block outer inclined-plane is caught in cone linkage slide core lower end circular conical surface connection, connector enters locking nut hollow hole by threaded rod and connects cone linkage slide core, it is rotated down locking nut, cone linkage slide core pushes down on three sliding blocks and pinches in radially, until the snap ring on locking nut lower open end snaps onto sliding block annular groove, the downward dimpling driving sliding block of elastic lock ring inside contracts, the inner cone inclined-plane of sliding block and the circular conical surface of cone linkage slide core is promoted to fit, band movable slider moves down, outside pretightning force clamping pipe material inner wall is provided.The present invention has install convenient, small in size, and versatility is good, without using chock plug, firm grip, and is not in that sample breaks in clamping end.
Description
Technical field
The present invention relates to a kind of test fixtures for testing whole tubing high temperature tensile properties, especially test thin-wall pipes
(wall thickness is less than 2mm) whole tube section sample high temperature tensile properties test fixture, and in particular to a kind of inner wall self-locking entirety tubing is high
Warm tensile test fixture.
Background technique
To characterize material mechanical property in a high temperauture environment, it usually needs carry out a series of mechanicals behavior under high temperature test examinations
It tests, one of them is high temperature tension test.The test is to apply pulling force to sample at the specified temperature, is generally stretched to fracture,
Thus one or more mechanical behavior under high temperature indexs are measured, to characterize the mechanical behavior under high temperature or behavior of material.Well known height
Warm tension test is mainly to be realized by high-temperature tensile testing machine, test load and examination needed for this equipment can provide test
Test temperature.Drawing by high temperature sample is divided into gripping section and test section, due to difference of the variety classes sample on test implementation
Mainly method of clamping, it is different for bar sample, sheet coupon and tubular product sample etc. based on the considerations of equipment interoperability
The sample of geometric dimension type, existing solution are that sample is connected with testing equipment using the test fixture of corresponding specification
The drawing force for connecing, and thus providing testing equipment is transferred to specimen test section and tests.Wherein bar and sheet coupon are answered
With relatively wide, skid and break in the root the phenomenon that solve sample, it is main to be connected with pin using being threadedly coupled.Tubular product sample point
To cut open pipe sample and whole tubular product sample, the current country carries out cuing open pipe tubing high temperature tension test being after cutting homogeneous tube into strips
It connect and is tested with drawing by high temperature equipment using the sample holder mode of similar plate, in the examination of keeping parallelism length thereof
Under the premise of sample section not compressive strain, two heads of gripping section are flattened to clamp.But this mode is disadvantageous in that cannot
Really reflect mechanical property under entire tubing hot environment, and processes cumbersome, higher cost.In the prior art, integral tube
Material test method of clamping is broadly divided into two classes.One kind is to pass through a pair of threaded plug of welding, plug and pipe on tubing head
Then material is connected using the screw thread of plug with fixture screw thread by being welded to connect, carry out high temperature tension test.Although this method is tied
Structure is simple, but every time test when be required to process matched plug according to the internal diameter of tubing, increase process and
Cost.Secondly, plug is welded to connect with tubing, the quality of welding quality increases the uncertainty of test, welds simultaneously
When temperature can affect to tubing, reduce tubing high-temperature behavior test confidence level.Another kind of is in tubing
The chock plug to match with pipe internal diameter is filled in gripping section inner tube, chock plug guarantees mainly by the interference fit with bore, so
It is clamped afterwards by Wedge gripping.This process employs the fixtures of room temperature tensile, reduce the cost of high temperature tensile clamp, but every
The secondary chock plug for being also required to carry out process mating according to the internal diameter of tubing, because chock plug and pipe internal diameter are interference fitted, and tubing itself
Internal diameter inevitably have certain dimensional discrepancy, cause interference fit be difficult to ensure.Secondly, the tubing that chock plug is added is pressed from both sides in room temperature
Tubing clamping end inevitably occurs when tool clamping to be deformed, easily appears in clamping when so as to cause tubing drawing by high temperature
End fracture, so that test is invalid.
Chinese patent notification number is to disclose a kind of main use disclosed in CN102288482B " a kind of high temperature tensile clamp "
In the whole tube high-temperature stretching pipe material clamp of tubular product sample high temperature tensile properties detection, which includes: an outer sleeve, a top
Bar, an inner sleeve, the inner sleeve bottom end are mounted on outer sleeve connecting hole large aperture one end, have a mounting hole, the installation
Hole circumferential edges have one group of guide groove, and the angle for being oriented to trench bottom and hole central axis is greater than 0o, one group and guiding slot number
Identical clamping watt is measured, the clamping watt has mounting portion and clamping section, and the mounting portion matches installation with the guide groove,
The gradient on the mounting portion bottom edge is consistent with guide groove bottom edge gradient, and there is the arc being in contact with test specimen to clamp for the clamping section
Face.
Chinese patent publication No. be disclosed in CN103630447A " a kind of metal pipe material integral high-temperature stretch detection method and
Its special fixture ", it discloses a kind of metal pipe material integral high-temperature and stretches detection method and its special fixture, in which: the tubing
Fixture is made of clamping sleeve, jackscrew and folder cone, when clamping whole tubing testpieces, tubing is reached in folder cone, jackscrew is passed through
Rotary squeezing folder cone, makes it lock tubing testpieces.
What above-mentioned two patent applications all solved whole tubing drawing by high temperature to a certain extent clamps not strongly solid ask
Topic, but be disadvantageous in that be all based on inside tubing and be blocked, the mode that outside is clamped.This mode still needs
It processing and tubing cooperation chock plug and is consumed in each test, and test fixture is larger and usual high temperature tension test heats
Thorax size is smaller in furnace, is easy to appear test fixture problem difficult to install；If size of pipe and tubing is increased, retained part is placed in
Other than heating equipment, there is test fixture problem difficult to install although can be avoided, shortcoming is on the one hand to increase
The length of tubing wastes raw material, and another aspect Pipe Test section is in heating furnace, it is difficult to the temperature of guarantee test section
Spend uniformity.
Summary of the invention
To solve shortcoming existing for existing tubing high temperature tension test fixture, the object of the present invention is to provide a kind of peaces
Fill that convenient, fixture is small in size, versatility is good, without using chock plug, firm grip, and is not in that sample breaks in clamping end
Wall self-locking type entirety tubing high temperature tension test fixture.
The technical solution used to solve the technical problems of the present invention is that: a kind of inner wall self-locking type entirety tubing drawing by high temperature examination
Fixture is tested, the sliding tight lock part including connector 1 and the whole tubing inboard wall of tube body of locking by one end joint test machine pull rod
Part, it is characterised in that: sliding locking member includes sliding block 5 and elastic lock ring 6, wherein sliding block 5 is by least three independently and by circle
The uniformly distributed outer inclined-plane block composition of all equal parts, three independent sliding blocks 5 are uniformly connected by elastic lock ring 6, and elastic lock ring 6 passes through pin
With the rivet hole 12 that is distributed on 5 circumference of sliding block is coaxial is connected, 5 upper end outer inclined-plane of sliding block expands outwardly, and distending slides locking member
Opening size after be caught in cone linkage 4 lower end circular conical surface of slide core connection composition sliding locking member, connector 1 passes through threaded rod
2 enter 3 hollow hole of locking nut connection cone linkage slide core 4, are rotated down locking nut 3, cone linkage slide core 4 pushes down on
Three sliding blocks 5 are pinched in radially, are slided in 5 pieces of annular grooves 10 until the snap ring 9 on locking nut lower open end snaps onto, bullet
Property the downward dimpling of lock ring 6 driving sliding block 5 inside contract, promote sliding block 5 inner cone inclined-plane 11 and cone link slide core 4 circular conical surface be affixed
It closes, band movable slider 5 moves down, and provides outside pretightning force clamping pipe material inner wall.
The present invention has the following beneficial effects: compared with the prior art
1. install convenient, fixture are small in size.The present invention locks tubing gripping section in such a way that inner wall is self-locking, tries in installation
When sample, by 3 backspin of locking nut, sliding block 5 is moved downward along the circular conical surface of cone linkage slide core 4 at this time, at the same time outside sliding block
Disc diameter increases.After sliding block periphery size increases to greater than pipe internal diameter size, then fixes pipe clamping end and produce
Raw pre-tightening tension.Meanwhile 5 periphery serrated portion of sliding block is bored into pipe material inner wall, increase pipe material inner wall rubs with sliding block periphery
It wipes.Install convenient, fixture are small in size.
2. without using chock plug, firm grip.The present invention slides locking member and passes through cone linkage slide core expansion and circle
Shape taper fit, so that the whole tubing inboard wall of tube body uniform force being locked, pipe fitting are unlikely to deform.Overcome prior art plug
Area of bed is longer, tube wall inhomogeneous deformation is easily caused after clamping, sample is easily in the defect of clamping end fracture.And since inner wall presss from both sides
Holding overall dimensions after type high temperature tension test fixture is connect with tubing is tube outer diameter size, greatly reduces it in heating furnace
It is taken up space.If not considering other special circumstances, heating furnace space need to only be slightly larger than tube outer diameter size, thus cooperate minimum add
Hot stove uses, and can greatly save heating space, sample can be warming up to test temperature in the short time, and energy-efficient, meaning is huge.
3. being not in that sample breaks in clamping end.The present invention is using three independences and uniformly distributed outer inclined-plane block sliding block composition
Slider part inner wall self-locking manner carry out pipe clamping, without using chock plug and required test segment length it is short, to sample mechanics shadow
Sound is small, will not be broken at sample holder end.Not only avoid because chock plug it is too long caused by Pipe Test section change in size, also avoid
Conventional brace clamps outer pipe wall bring tube wall deformation, and resulting gripping section and test section transition region stress collection
In, sample fracture is in clamping end.
4. clamping is stablized, securely.The present invention uses the increase with test force, and increased inclined-plane clamps knot to clamping force therewith
Structure, specimen test clamp stabilization in the process, and the draw direction frictional force that fixture provides is sufficiently large and stablizes.Well known frictional force shadow
The factor of sound is friction secondary coefficient of friction and normal pressure each other, and all directly proportional.The present invention is using sliding block 5 and cone linkage slide core
4 slide block assemblies constituted, since relative position variation and the constraint of tubing wall can then generate bigger lateral positive pressure to tubing wall
Power, thus provides enough draw direction frictional force and inner wall self-locking manner realizes tubular product sample clamping, and axial tensile loads are got over
Greatly, axial tensile loads are bigger, and lateral chucking power is bigger, clamp more secured.
5. versatility is good.The present invention uses inner wall self-locking method of clamping, passes through slide unit and cone linkage slide core 4
Relative position changes to fasten pipe material inner wall, achievees the effect that fastening clamp, and can theoretically clamp pipe internal diameter is (cone connection
Dynamic slide core bottom+2 × sliding block of diameter base thickness) to the tubing of (cone link slide core bottom+2 × sliding block of diameter top thickness).It is several by being made
The fixture of set specification can carry out the whole tubing high temperature tension test of larger pipe internal diameter variation range, and fixture versatility is good.
6. low-intensity pipe and high-temperature tensile test of thin-walled tube can be carried out.The present invention is fastened outer using outer tube fixing hoop 7
Tube wall, especially clamping low-intensity pipe or thin-wall tube, provide not only enough chucking powers, and chucking power is evenly distributed, no
It will appear the deformation of conduit clamping end, also avoid needing to carry out welding company using threaded plug in traditional whole pipe material clamp
It connects, specimen test section and gripping section transitional region are easily-deformable, test the drawing crack of Shi Yicong pad and cause test invalid, and sample is disconnected
It splits the clamping end the phenomenon that.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is whole tubing high temperature tension test inner wall self-locking jig structural schematic diagram.
Fig. 2 is the locking nut diagrammatic cross-section of Fig. 1.
Fig. 3 is sliding block and elastic lock ring assembling schematic diagram in Fig. 1.
In figure: 1 connector, 2 threaded rods, 3 locking nuts, 4 cones linkage slide core, 5 sliding blocks, 6 elastic lock rings, 7 outer tubes are solid
Determine clip, 8 whole tubular product samples, 9 sliding block clamp rings, 10 sliding block card slots, 11 sliding block outer inclined-planes, 12 elastic lock ring rivet holes.
Specific embodiment
- Fig. 3 refering to fig. 1.It is identical that two pieces structure size is disclosed as shown in Figure 1, is separately connected high temperature tension test
A kind of more excellent scheme of the self-locking whole tubing high temperature tension test fixture of the inner wall of the upper and lower pull rod of equipment.Mainly by connector 1,
Threaded rod 2, locking nut 3, cone linkage slide core 4, sliding block 5, elastic lock ring 6 and sliding block clamp ring 9 form above-mentioned fixture, pass through it
Connector 1 connect with the pull rod pin of testing machine, and be affixed to testing machine pull rod, drive pull rod to band by testing machine crossbeam
Dynamic tube stretching fixture and whole tubular product sample, realize the transmitting of force value.In inner wall self-locking type entirety tubing high temperature tension test
In the preferably embodiment of one of fixture, connector 1 is connected with equipment by pin, and cone linkage slide core 4 passes through upper part
Thread segment be connected with threaded rod 2.Locking member is slid by what sliding block 5 and elastic lock ring 6 formed by adjusting the position of sliding block 5
It installs in cone linkage slide core 4, and is caught in the sliding block clamp ring 9 of 3 aperture position of locking nut setting.It, will when sample is installed
Sliding locking member is placed in whole 8 inner tube of tubular product sample.Cone linkage slide core 4 is divided for thread segment and trapezoid cross section cone,
The thread segment connected on cone small end is fixedly connected by 2 axial threaded hole of threaded rod so that cone link 4 meetings of slide core with
The movement of connector and move.The trapezoid cross section projection cone of cone linkage slide core 4 passes through in the same taper that sliding block 5 surrounds tiltedly
Face 11 cooperates, and sliding block 5 moves along circular conical surface, moved down, mentioned with movable slider 5 by the locking nut 3 being screwed down on threaded rod 2
Clamping pipe material inner wall is realized for the pretightning force of radial direction.
On rare occasions, whole 8 wall thickness intensity of tubular product sample is lower or when tube wall is relatively thin, and the scheme may result in
Plastic deformation or cracking occur for tube wall during stretching, and fixture is caused to be unfavorable for the suitable of test with sliding occurs inside tubing
Benefit carries out.In another preferably embodiment, outer tube fixing hoop 7, user are increased on the basis of above scheme
Formula is to secure it within outer pipe wall after above scheme implementation, plays the role of enhancing tubing clamping end integral strength.It uses
Low-intensity pipe or high-temperature tensile test of thin-walled tube sample holder can be realized in the scheme.Therefore the present embodiment, in the entirety
8 clamping end of tubular product sample is equipped with fixed outer pipe clip 7, and whole 8 inner wall of tubing is by interior wall-shaped self-locking type high temperature tension test fixture
After connecting firmly, outer pipe clip 7 is reinforced in the clamping end of whole tubular product sample 8.
In 3 structure of locking nut as shown in Figure 2, the internal screw thread of the locking nut 3 is connected with 2 external screw thread of threaded rod
It connects, the snap ring 9 that section is L shape is formed on the end face of the lower orifice of the locking nut 3, snap ring 9 is enclosed with 5 upper surface of sliding block
At the made card slot 10 of periphery cooperate.Locking nut 3 with card slot by driving and sliding in about 2 turn of threaded rod
Moving up and down for locking member is moved, the outer diameter variation of sliding locking member transverse direction is achieved in, plays clamping pipe material inner wall
Effect.
Sliding locking member shown in Fig. 3 is made of sliding block 5 and elastic lock ring 6, and wherein sliding block 5 is third by three independences
Divide the outer inclined-plane block composition of circumference uniform distribution, 10 width of card slot and depth that sliding block 5 and sliding block clamp ring 9 cooperate are greater than sliding block clamp ring 9
Thickness, the lower end surface periphery diameter dimension of sliding block 5 is slightly less than middle section outer diameter, and has been uniformly distributed three lateral rivetings
Nail hole 12,5 middle section outer surface of sliding block are formed with the sawtooth of certain depth and width, thus increase the sliding block 5 and integral tube
8 inner wall frictional force of material sample, to reach better clamping effect；Elastic lock ring 6 is solid by the rivet hole 12 of pin and sliding block 5
Even, in the preferred embodiment, three independent sliding blocks 5 are uniformly connected by elastic lock ring 6, and the downward dimpling of elastic lock ring 6 is simultaneously
Make sliding block 5 have it is certain inside contract, enable sliding block 5 be preferably bonded cone linkage slide core 4 circular conical surface, the bullet of elastic lock ring 6
Property performance can increase the motion deformation number of sliding block 5 simultaneously, and improve test fixture bulk life time.
The assembling process of fixture of the present invention is:
1. locking nut 3 screws on threaded rod 2, until the end face of threaded rod 2 is exposed, it is noted that locking nut
Big end should be towards the pin hole direction of connector 1；
2. the end of thread of cone linkage slide core 4 is threaded into the end face axial hole of bar 2；
3. by cone linkage slide core is caught in by sliding block 5 and the connected sliding locking member being composed of the riveting of elastic lock ring 6
4, the mode of being caught in is to pull out 5 upper surface of sliding block slightly outwards, sticks into cone connection after increasing the opening size of sliding locking member
Dynamic 4 lower end surface of slide core；After sliding locking member is caught in cone linkage slide core 4, three sliding blocks 5 are inwardly clutched, while to backspin
Turn locking nut 3, until the snap ring 9 of locking nut snaps onto sliding 5 pieces of card slot 10, adjustment sliding block 5 is slided with cone linkage
4 relative position of core simultaneously makes the outer inclined-plane 11 of sliding block 5 and the circular conical surface of cone linkage slide core 4 fit.
It is using the operating procedure that the fixture of more excellent scheme of the present invention carries out whole tubing high temperature tension test:
1. selecting the fixture of appropriate size according to the specification of tubing and size, and fixture and drawing by high temperature are set using pin
Standby connection；
2. whole 8 clamping end inner wall sleeve upper fixture of tubular product sample is slid locking member, locking screw is rotated to sample direction
Mother 2, thus the circular cone with movable slider 4 along cone linkage slide core 3 is moved towards sample direction.Sliding block 5 links along cone and slides at this time
The circular conical surface of core 4 moves downward, while sliding block periphery diameter increases.When sliding block periphery size is greater than pipe internal diameter size
Afterwards, fixture fixes pipe clamping end inner wall and forms chucking power.
3. sample preparation is at rear, starting high-temperature tensile testing machine, by its crossbeam band dynamic test machine pull rod, fixture and tubing
Sample 8 moves upwards.Relative motion can be generated in the circular conical surface of the outer inclined-plane and cone of sliding block 5 linkage slide core 4 at this time, cause to slide
The outer diameter of block 5 further increases, and thus generates the longitudinal frictional force of bigger lateral normal pressure and fixture and tubing, and
Axial tensile loads are bigger, and chucking power is bigger, and clamping more fastens.
After the completion of tension test, it is only necessary to locking nut 3 is rotated round about, by the snap ring 9 of locking nut 3 by sliding block 5
Along cone linkage 4 circular conical surface pull-up of slide core.Sliding block 5 is tightened under the action of elastic lock ring 6, and the excircle dimension of sliding block 5 becomes smaller, and is taken
Tubular product sample out completes test.
If low-intensity pipe or high-temperature tensile test of thin-walled tube need to be carried out, in another more excellent scheme, it is only necessary in above-mentioned side
Increase outer tube fixing hoop 7 on the basis of case fixture.After completing above-mentioned installation, by by two symmetrical band connection side semi-rings outside
Pipe fixing hoop 7 is inserted in whole 8 outer pipe wall of tubular product sample, plays connection for four groups and the bolt band of fixed function is tight, that is, complete
Sample installation.Tube wall strength of the service condition of fixing hoop 7 based on tubing itself, when the wall thickness intensity of tubular product sample is lower,
Plastic deformation or cracking occur during stretching to be enhanced when causing to slide inside fixture and tubing using fixing hoop
The integral strength at pipe clamping end, guarantee test are gone on smoothly.
It, can by professional and technical personnel in the field according to whole tubing high temperature tension test inner wall self-locking jig disclosed above
It realizes or uses the present invention easily.And after above disclosure is understood completely, place's many variations and modifications can be designed.Therefore originally
Invention is not intended to be limited to specific embodiment disclosed herein, and is to fit to consistent with pipe material inner wall self-locking function
Modifications and variations and its equivalent.
Claims (6)
1. a kind of inner wall self-locking type entirety tubing high temperature tension test fixture, the connection including passing through one end joint test machine pull rod
Head (1) and the sliding locking member for locking whole tubing inboard wall of tube body, it is characterised in that: sliding locking member includes sliding block (5)
With elastic lock ring (6), wherein sliding block (5) is formed by least three independences and by the uniformly distributed outer inclined-plane block of circumference equal dividing, and three solely
Vertical sliding block (5) is uniformly connected by elastic lock ring (6), and elastic lock ring (6) passes through the rivet being distributed on pin and sliding block (5) circumference
Hole (12) is coaxially connected, and sliding block (5) upper end outer inclined-plane expands outwardly, and is caught in cone after the opening size of distending sliding locking member
Link slide core (4) lower end circular conical surface connection composition sliding locking member, and connector (1) enters locking nut by threaded rod (2)
(3) hollow hole connection cone linkage slide core (4), is rotated down locking nut (3), and cone linkage slide core (4) pushes down on three
Sliding block (5) is pinched in radially, until the snap ring (9) on locking nut lower open end snaps onto the annular groove of sliding block (5)
(10) in, dimpling driving sliding block (5) inside contracts elastic lock ring (6) downwards, and the inner cone inclined-plane (11) of sliding block (5) and cone is promoted to link
The circular conical surface of slide core (4) fits, and band movable slider (5) moves down, and provides outside pretightning force clamping pipe material inner wall, cone connection
Dynamic slide core (4) are divided into thread segment and trapezoid cross section cone, and the thread segment connected on cone small end passes through threaded rod (2) axial screw
Pit is fixedly connected, so that cone linkage slide core (4) can only be moved with the movement of connector, cone links slide core (4)
Inner cone inclined-plane (11) cooperation that trapezoid cross section is surrounded by sliding block (5), sliding block (5) is moved along circular conical surface, by threaded rod (2)
Locking nut (3) band movable slider (5) being screwed down moves down, and provides the pretightning force of radial direction, realizes in clamping tubing
Wall, sliding block (5) outer surface are formed with sawtooth, increase the sliding block (5) and whole tubular product sample (8) inner wall frictional force with this.
2. inner wall self-locking type entirety tubing high temperature tension test fixture as described in claim 1, it is characterised in that: cone linkage
Slide core (4) is connected by the thread segment of upper part with threaded rod (2).
3. inner wall self-locking type entirety tubing high temperature tension test fixture as described in claim 1, it is characterised in that: sliding locking
Component is installed by adjusting the position of sliding block (5) and is linked in slide core (4) into cone, and is caught in locking nut (3) aperture position and is set
In the snap ring (9) set.
4. inner wall self-locking type entirety tubing high temperature tension test fixture as described in claim 1, it is characterised in that: in integral tube
Material sample (8) clamping end is equipped with fixed outer pipe clip (7).
5. inner wall self-locking type entirety tubing high temperature tension test fixture as claimed in claim 4, it is characterised in that: whole tubing
After sample (8) inner wall is connected firmly by interior wall-shaped self-locking type high temperature tension test fixture, outer pipe clip (7) is reinforced in whole tubular product sample
(8) clamping end.
6. inner wall self-locking type entirety tubing high temperature tension test fixture as described in claim 1, it is characterised in that: the locking
The snap ring (9) that section is L shape is formed on the end face of the lower orifice of nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937950.1A CN105699181B (en) | 2015-12-16 | 2015-12-16 | The self-locking whole tubing high temperature tension test fixture of inner wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510937950.1A CN105699181B (en) | 2015-12-16 | 2015-12-16 | The self-locking whole tubing high temperature tension test fixture of inner wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105699181A CN105699181A (en) | 2016-06-22 |
| CN105699181B true CN105699181B (en) | 2019-03-26 |
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| CN201510937950.1A Active CN105699181B (en) | 2015-12-16 | 2015-12-16 | The self-locking whole tubing high temperature tension test fixture of inner wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571939A (en) * | 2015-12-18 | 2016-05-11 | 中国人民解放军第五七一九工厂 | High-temperature stretching test clamp for integral pipe with self-locking inner wall |
| CN106003680A (en) * | 2016-06-23 | 2016-10-12 | 苏州市盛百威包装设备有限公司 | Packing two-way stretching clamping fixture for plastic pipe |
| CN109604089A (en) * | 2017-02-16 | 2019-04-12 | 丽水市信裕机械制造有限公司 | Clamping device is used in a kind of spray painting of red copper tube outer surface |
| CN108387509B (en) * | 2018-02-01 | 2020-09-04 | 合肥工业大学 | Friction force detection device under high temperature condition |
| CN110961960B (en) * | 2019-11-14 | 2021-06-11 | 首都航天机械有限公司 | Numerical control lathe clamp for machining slender shaft with flange plate |
| CN112683658A (en) * | 2020-12-02 | 2021-04-20 | 浙江工业大学 | Friction head clamping device installed on friction testing machine |
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| CN104390856A (en) * | 2014-12-16 | 2015-03-04 | 中国科学院合肥物质科学研究院 | Clamp for metal thin-wall whole segment tube axial tension and compression fatigue test |
| CN204573454U (en) * | 2015-05-04 | 2015-08-19 | 蔡多谋 | Self-sealing expansion is swollen plug |
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