CN206192778U - High temperature high pressure fine motion fatigue testing machine - Google Patents
High temperature high pressure fine motion fatigue testing machine Download PDFInfo
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- CN206192778U CN206192778U CN201621295478.2U CN201621295478U CN206192778U CN 206192778 U CN206192778 U CN 206192778U CN 201621295478 U CN201621295478 U CN 201621295478U CN 206192778 U CN206192778 U CN 206192778U
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Abstract
The utility model discloses a high temperature high pressure fine motion fatigue testing machine, can be used to the high temperature water under high pressure, fine motion fatigue test under steam or the liquid environment, the normal force loading device who adopts in this testing machine only need choose for use linear electric motor alright the realization of little load to carry out invariable normal force loading to the sample, compensate in real time in whole process of the test and take place the wearing and tearing back between pressing gasket and the sample and the power value of loss, it can show land improvement load control and measurement accuracy, obtain stable normal force loading power value, and then improve this fine motion fatigue testing machine's bulk testing precision.
Description
Technical field
The utility model is related to a kind of HTHP fretting fatigue testing machine.
Background technology
Fine motion（fretting）It is exactly a kind of wear phenomenon occurred in two contact surfaces, has typically occurred in small
, in the contact surface of continuous relative motion, general its displacement amplitude is micron dimension, generally at more than tens to one hundred microns
Between.Fretting fatigue refer to component in the presence of cyclic loading, due to a certain position in surface and other contact surfaces produce it is small
Amplitude causes the phenomenon of component fatigue intensity decreases or early fracture with respect to slip.Fretting fatigue（Fretting Fatigue,
FF）Phenomenon is widely present in the fields such as machinery, traffic, electric power, Aero-Space, or even biomedical engineering, and it can accelerate zero
The fatigue crack initiation of part and extension, so as to substantially reduce service life, or even cause catastrophic failure, therefore fretting damage quilt
Cancer referred to as in industry.Research shows that fine motion can make the fatigue life reduction by 20% ~ 80% of component, even lower.Therefore, it is
The derogatory behaviour of system ground research fretting fatigue and safeguard procedures, with important theory significance and engineering application value.
But the abrasion of industrial circle inner part is it occur frequently that in high temperature and/or high pressure chemical environment of water or gaseous environment
In, the data on conventional mechanics machine between measured part can not be applicable.Not being directed in the prior art should
The fretting fatigue testing machine of high temperature chemical environment of water or environment of high temperature gas in industrial circle is planted, the application is regarding to the issue above
And propose, for fretting fatigue testing provides the experimental rig of the whole series under high-temperature pressure chemical environment of water, high-temperature pressure gaseous environment.
Additionally, in fretting fatigue testing, keeping normal force to load steadily in the long term most important, this is quantitatively characterizing fine motion
On the key of material fatigue life influence.And fretting fatigue normal force loading method conventional at present is bolt loading or NOL ring
Load, the shortcoming of this method is：With the carrying out of experiment, will be worn and torn between pad and sample, therefore cause both
Between normal force cannot keep constant, can continue to reduce, or even it is zero normal force occur.This method at normal temperatures and pressures or
Perhaps the loss for being manually adjusted compensation normal force can be used, but in high temperature high pressure enclosed environment, cannot be manually carried out
Adjusting compensation, and manually adjust compensation can not accomplish real-time adjustment.
The content of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, there is provided a kind of HTHP fretting fatigue testing
Machine.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of HTHP fretting fatigue testing machine,
Including support, oscilaltion ground main shaft on the support, the pressure vessel that is fixedly arranged on the support, the pressure holds
Utensil has the closed environment chamber that can fill high temperature and high pressure environment, and the main shaft is stretched into the environmental chamber, and sample is by folder
Tool is fixed on the main shaft and is set in the environmental chamber, and the testing machine is also included for carrying out method to the sample
To the normal direction force loading device that power is loaded, the normal direction force loading device includes：
Compress gasket, the compress gasket has two groups, and the compress gasket described in two groups is separately positioned on the sample radially
On different both sides radially compressing the sample respectively；
Pad guide plate, its relatively described fixture is fixedly provided in the environmental chamber, on the pad guide plate
Offer be available for the sample radially to penetrate accepting groove, be located at the accepting groove both sides and be connected with the accepting groove respectively
Two logical gathering sills, compress gasket described in two groups is arranged in the gathering sill of both sides with being slidably matched respectively；
Pressure holding mechanism, the pressure holding mechanism has two groups, is respectively used to apply compress gasket described in two groups described with thrust
Pressure holding mechanism includes that the linear electric motors being installed on the support, the pressure being fixed on the motor shaft of the linear electric motors are certainly flat
Weighing apparatus tensile axis, the pressure self-balancing tensile axis have the output end for stretching into the environmental chamber, in the output end regularly
Connection force sensor, the pressure holding mechanism is also fixed in the connecting shaft of the force snesor including one end, the connecting shaft
The other end is for pushing the compress gasket to apply the compression end of thrust；
The normal direction force loading device also includes that the pressure value of force snesor feedback two groups can be controlled according to two groups
The controller of the linear electric motors working condition.
Preferably, the compression end of connecting shaft described in both sides is stretched into the corresponding gathering sill and applied respectively in axial direction
Plus the compress gasket is with thrust.
Preferably, the contact end face that the compress gasket is in contact with the sample is arc surface, plane or sphere, both sides
The centerline collineation of the compress gasket and along the sample radial centre lines extend.
Preferably, the pad guide plate is in the form of annular discs, and the accepting groove is in U-shaped of the opening towards its radial outside,
The pad guide plate is fixed on the fixture.
Preferably, gap is ordinatedly set between the compress gasket and the gathering sill.
Preferably, the pressure vessel is the autoclave that can fill high temperature and high pressure gas or liquid environment, the high pressure
Kettle includes the kettle being fixedly installed on the support, the kettle cover that can be ordinatedly opened and closed on the kettle, the fatigue
The main shaft of testing machine is stretched into the inner chamber of the autoclave through the kettle cover.
Further, the fixture be fixedly mounted on the kettle cover and by the sample be fixedly mounted on the fixture with
Between the main shaft, the pad guide plate is set with being relatively fixed with the kettle cover, the fixture.
Used as a kind of specific embodiment, the fixture includes clamping fixture seat, is fixedly connected the clamping fixture seat with the kettle
Many connecting poles of lid, the pad guide plate is fixedly provided on many connecting poles.
Further, the fatigue tester also includes the relatively described adjustable crossbeam of support upper-lower position, the kettle cover
On the crossbeam；The main shaft vertically can be located on the crossbeam up and down, and use is additionally provided with the crossbeam
In ordering about the lift drive mechanism that the main shaft is vertically lifted.
Further, the lift drive mechanism includes being arranged on the oil cylinder on the crossbeam top, and the oil cylinder is stretched
Contracting bar is extended downwardly from and is connected with the main shaft, and another force snesor is additionally provided between the main shaft and the expansion link,
The main shaft uses another pressure self-balancing tensile axis, and the top of the oil cylinder is additionally provided with displacement transducer.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：This practicality is new
The HTHP fretting fatigue testing machine of type, the fretting fatigue testing that can be used under high-temperature high pressure water, steam or liquid environment should
The normal direction force loading device used in testing machine just need to can only realize the constant load of normal force from the linear electric motors of side crops industry,
The force value lost after being worn and torn between compensation compress gasket and sample in real time, keeps normal force value to obtain constant, and it can
Load control and certainty of measurement are significantly increased, the normal force loading force value of stabilization is obtained, and then improves the fretting fatigue testing
The bulk testing precision of machine.
Brief description of the drawings
Accompanying drawing 1 is the overall structure schematic perspective view of fatigue tester of the present utility model；
Accompanying drawing 2 is the front view of fatigue tester of the present utility model；
Accompanying drawing 3 is the diagrammatic side-view cross-sectional schematic diagram of fatigue tester of the present utility model；
Accompanying drawing 4 is the enlarged diagram of normal direction force loading device part in accompanying drawing 3；
Accompanying drawing 5 is the scheme of installation of sample；
Accompanying drawing 6 is the schematic diagram of pad guide plate；
Accompanying drawing 7,8,9,10 is respectively the loading adjustment principle schematic of normal direction force loading device.
Wherein：10th, support；20th, crossbeam；30th, column；40th, oil cylinder；50th, displacement transducer；60th, force snesor；70th, even
Acting flange；80th, column is connected；
1st, autoclave；11st, kettle；12nd, kettle cover；2nd, main shaft；3rd, sample；4th, fixture；41st, clamping fixture seat；42nd, connecting pole；5、
Compress gasket；6th, pad guide plate；61st, accepting groove；62nd, gathering sill；7th, pressure holding mechanism；71st, linear electric motors；72nd, pressure is certainly flat
Weighing apparatus tensile axis；73rd, force snesor；74th, connecting shaft；8th, controller.
Specific embodiment
The technical solution of the utility model is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1 to 6, a kind of HTHP fretting fatigue testing machine, it includes support 10, is fixedly provided in machine
It is arranged on column 30 and the relative upper-lower position of support 10 to the two root posts 30, oscilaltion vertically extended on seat 10
Adjustable crossbeam 20, is provided with main shaft 2 on crossbeam 20, main shaft 2 can be arranged on to oscilaltion on crossbeam 20.The top of crossbeam 20
The lift drive mechanism for the oscilaltion of drive shaft 2 is additionally provided with, herein, what lift drive mechanism was used is oil cylinder 40, oil
The expansion link of cylinder 40 is extended downwardly from and is connected with main shaft 2, for providing and controlling certain amplitude or load, frequency under it is reciprocal
Motion.Force snesor 60 is additionally provided between main shaft 2 and above-mentioned expansion link, what main shaft 2 was used herein is pressure self-balancing stretching
Axle；The cylinder body top of oil cylinder 40 is additionally provided with displacement transducer 50, to detect the displacement vertically of main shaft 2.
Referring to shown in Fig. 1 to Fig. 6, the fatigue tester also includes the pressure vessel being fixedly arranged on support 10, and the pressure holds
Utensil has the closed environment chamber that can fill high temperature and high pressure gas or liquid environment, and herein, what pressure vessel was used is high pressure
Kettle 1, the autoclave 1 includes the kettle 11 being fixedly provided on support 10, can coordinate on kettle 11 kettle cover of keying
12, kettle cover 12 is ordinatedly covered on kettle 11 just so that the inner chamber of kettle 11 is closed and can fill high temperature and high pressure gas or liquid
Environment, by setting water circulation in addition with water chemistry detecting system come the ambient parameter in the environmental chamber for controlling autoclave 1.
Main shaft 2 is stretched into the environmental chamber of autoclave 1 through kettle cover 12, and sample 3 is fixed on main shaft 2 by fixture 4
And be set in the environmental chamber of autoclave 1.Herein, what is used due to main shaft 2 is pressure self-balancing tensile axis, and it has pressure
Self-balancing, it is thus possible to offset the inside and outside differential pressure of autoclave 1, eliminates the thrust that pressure difference is produced, and can realize that high temperature is high
Dynamic sealing under pressure ring border, using the pressure self-balancing tensile axis come fixture 4, Ke Yibao in the Actuator Division of joint test machine and kettle
Load is not influenceed by the inside and outside differential pressure of autoclave 1 in the Actuator Division reciprocatory movement for demonstrate,proving fatigue tester.
Referring to shown in Fig. 1, Fig. 2, kettle cover 12 is connected on crossbeam 20 by loading and unloading container mechanism and drives its phase in crossbeam 20
The lifting of kettle 11 is realized to open and close.Specifically, above-mentioned handling container mechanism includes adpting flange 70 and Duo Gen connection columns 80,
Adpting flange 70 is bolted to connection in the lower surface of crossbeam 20, and the lower end for connecting column 80 is fixedly connected on kettle cover 12,
Through the through hole on adpting flange 70 and by nut locking, so, in installation autoclave 1, crossbeam 20 is to moving down for its upper end
Dynamic, kettle cover 12 lands, when connecting the nut on column 80 and not contacted with the surface of adpting flange 70, you can determine kettle cover 12 and
Kettle 11 coordinates to be installed.When connection column 80 can avoid it from being fixedly connected with the above-mentioned setting of adpting flange 70, kettle cover is installed
During 12, after kettle cover 12 and kettle 11 coordinate to be installed, the excessive movement of crossbeam 20 and cause that whole device is in stress shape
State, causes the damage of experimental rig.
Referring to shown in each accompanying drawing, the fatigue tester is also included for adding to the normal force that sample 3 carries out normal force loading
Carry and put, the normal direction force loading device includes：
Compress gasket 5, the compress gasket 5 has two groups, is separately positioned on the different both sides radially of sample 3 with respectively along footpath
To compression sample 3.The contact end face that compress gasket 5 is in contact with sample 3 can be arc surface, plane or sphere, contact end face
Type determined with specific reference to test requirements document.The centerline collineation of both sides compress gasket 5 and with the radial centre lines of sample 3
Extend, normal force is applied to sample 3 during ensuring to compress two compress gaskets 5 respectively from both sides；
Pad guide plate 6, the opposed jaw 4 of pad guide plate 6 is fixedly provided in the environmental chamber of autoclave 1, with
For providing the motion guide during compression sample 3 of two compress gasket 5.Specifically, shown in Figure 6, the pad guide plate 6 is in circle
Plate-like, offer thereon be available for sample 3 radially to penetrate accepting groove 61, respectively be located at the both sides of accepting groove 61 and with accepting groove 61
Two gathering sills 62 being connected, accepting groove 61 is in U-shaped of the opening towards its radial outside, and sample 3 is radially into collecting
Groove 61, and the compress gasket 5 of both sides is slidably cooperatively disposed in the gathering sill 62 of both sides respectively, compress gasket 5 be oriented to
Between groove 62 can gap ordinatedly set, the gap width should be when ensureing in high-temperature expansion can slidably on the premise of to the greatest extent
It is possible small.In the present embodiment, pad guide plate 6 is fixedly provided on fixture 4, and specifically, fixture 4 includes clamping fixture seat 41
And many connecting poles 42 being fixedly connected between clamping fixture seat 41 and the kettle cover 12 of autoclave 1, pad guide plate 6 is fixed on above-mentioned
Many connecting poles 42 on, as shown in Figure 5；
Pressure holding mechanism 7, the pressure holding mechanism 7 has two groups, to be respectively used to apply both sides compress gasket 5 with thrust, so that
Apply sample 3 with normal force.Referring to shown in Fig. 3, Fig. 4, every group of pressure holding mechanism 7 is straight on support 10 including being fixedly provided in
Line motor 71, the pressure self-balancing tensile axis 72 being fixedly arranged on the motor shaft of linear electric motors 71, the pressure self-balancing tensile axis 72
With the output end in the environmental chamber for stretching into autoclave 1, be permanently connected force sensor 73 in the output end；The pressure holding machine
Structure 7 also includes connecting shaft 74, and one end of the connecting shaft 74 is fixed in force snesor 73, and the other end of connecting shaft 73 is for pushing
Compress gasket 5 is applying the compression end of thrust.When carrying out normal force and loading, the compression end of the connecting shaft 73 of both sides edge respectively
Axially stretch into corresponding gathering sill 62 and apply corresponding compress gasket 5 with thrust.
The normal direction force loading device also includes controller 8, and the controller 8 is connected with the signal of force snesor 73 of both sides, together
When be connected with the signal of linear electric motors 71 of both sides.The controller 8 can be controlled according to the pressure value of the feedback of two load cells 73
Make two groups of working conditions of linear electric motors 71, with cause both sides compress gasket 5 apply sample 3 normal force be maintained at setting value or
Person is maintained in setting range.
The course of work and operation principle of the HTHP fretting fatigue testing machine of the present embodiment are illustrated briefly below：
First, fixture 4 is attached on the kettle cover 12 of autoclave 1, while installing pad guide plate 6, then sample 3 is installed
To between clamping fixture seat 41 and main shaft 2, and cause that sample 3 passes radially through the accepting groove 61 of pad guide plate 6, then compressed two
Pad 5 is respectively implanted in two gathering sills 61 of pad guide plate 6 so that gentle touchdown between both sides compress gasket 5 and sample 3,
Should be tried one's best during installation so that the line of centres that both sides compress gasket 5 is in contact with sample 3 should prolong along the radial centre lines of sample 3
Stretch.Followed by crossbeam 20 is fallen with respect to support 10 so that kettle cover 12 is engaged with kettle 11 to be installed and form closed environment
Chamber, by water circulation and water chemistry detecting system come the ambient parameter in the environmental chamber for controlling autoclave 1 so that environmental chamber
The ambient condition filled in room meets test requirements document.
Shown in Figure 7 when initial followed by the loading of normal force, now the compression end of connecting shaft 74 is not yet stretched
In entering the gathering sill 62 of pad guide plate 6, now normal force F0=0.First determine compression end and the end of compress gasket 5 of connecting shaft 74
The distance between face S, controller 8 switches to displacement control mode.As shown in figure 8, controller 8 controls the linear electric motors 71 of both sides
After being operated so that the displacement of the compression end of connecting shaft 74 reaches S, linear electric motors 71 temporarily cease work, now compression end and pressure
Gentle touchdown, normal force F between the end face of tight pad 50=0。
Then, controller 8 switches to force control mode, controller 8 to receive the pressure value of the feedback of force snesor 73 of both sides
To control the working condition of linear electric motors 71.It is specific as follows：As shown in figure 9, controller 8 control two groups of linear electric motors 71 work and
So that the move toward one another of connecting shaft 74 of both sides and respectively move closer to the compress gasket 5 of both sides, 73 points of the force snesor of both sides
The not pressure value F that is detected to the Real-time Feedback of controller 80, as the pressure value F for detecting0Stress value F default less than experiment1
When, linear electric motors 71 described in the control of controller 8 two work and continue to order about the move toward one another of two connecting shaft 74, until force snesor 73
Feed back to the pressure value F of controller 80Equal to F1When, as shown in Figure 10, controller 8 controls the stop motion of two linear electric motors 71 and protects
The pressure value is held, starts fretting fatigue testing.
During fretting fatigue testing, the normal direction force loading device remains that compress gasket 5 puts on sample 3
Normal force is maintained in setting range, and the setting range is F0=F1± f, wherein f are the normal force value fluctuation of fatigue test setting
Range value.Specifically, the pressure value F that two force snesors 73 are detected to the Real-time Feedback of controller 8 respectively0, work as F1-f≤F0≤F1
During+f, the control linear electric motors 71 of controller 8 keep the state of stop motion；Work as F0≤F1During-f, the control linear electric motors of controller 8
71 work and order about the move toward one another of two connecting shaft 74 and increase pressure value；Work as F0≥F1During-f, the control linear electric motors 71 of controller 8
Work and order about two connecting shafts 74 and move in the opposite direction and reduce pressure value.So just ensure that whole fretting fatigue testing
During normal force constant load.
To sum up, HTHP fretting fatigue testing machine of the present utility model, has the following advantages that：
（1）The fretting fatigue testing machine can be simulated under nuclear power station one, secondary circuit temperature, press water electrochemical conditions, carried out
Fretting fatigue testing；
（2）Fretting fatigue testing, the contact side between sample 3 and compress gasket 5 are carried out using the fretting fatigue testing machine
Formula can be point, line, surface contact, and measurement can obtain the Fatigue life cycles number of each sample, multigroup sample, different parameters,
The Fatigue Life Curve of sample, i.e. S-N curves can be obtained；
（3）The fatigue tester it is simple for structure, its perpendicularity and levelness are conveniently adjusted, to ensure fatigue tester
Axiality, perpendicularity；
（4）The normal direction force loading device used in the fatigue tester, it need to select the linear electric motors of side crops industry just may be used
The constant load of normal force is realized, the force value lost after being worn and torn between compress gasket and sample is compensated in real time, can
Load control and certainty of measurement are improved, the normal force loading force value of stabilization is obtained；
（5）Designed using pressure self-balancing tensile axis, it is possible to achieve the counteracting of the inside and outside differential pressure of autoclave 1, eliminate pressure difference and produce
Raw thrust, further improves the precision of experiment.
Above-described embodiment only to illustrate technology design of the present utility model and feature, technique is familiar with its object is to allow
Personage will appreciate that content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (10)
1. a kind of HTHP fretting fatigue testing machine, including support, oscilaltion ground main shaft on the support, fixed
Pressure vessel on the support, the pressure vessel has the closed environment chamber that can fill high temperature and high pressure environment, described
Main shaft is stretched into the environmental chamber, and sample is fixed on the main shaft and is set in the environmental chamber by fixture, its
It is characterised by, the testing machine also includes the normal direction force loading device for carrying out normal force loading to the sample, the method
Include to force loading device：
Compress gasket, the compress gasket has two groups, and the compress gasket described in two groups is separately positioned on the sample radially
Different both sides radially compressing the sample respectively；
Pad guide plate, its relatively described fixture is fixedly provided in the environmental chamber, is opened up on the pad guide plate
There is the accepting groove for being available for the sample radially to penetrate, the accepting groove both sides be located at respectively and be connected with the accepting groove
Two gathering sills, compress gasket described in two groups is arranged in the gathering sill of both sides with being slidably matched respectively；
Pressure holding mechanism, the pressure holding mechanism has two groups, is respectively used to apply compress gasket described in two groups with thrust, the pressure holding
Mechanism includes that the linear electric motors being installed on the support, the pressure self-balancing being fixed on the motor shaft of the linear electric motors draw
Axle is stretched, the pressure self-balancing tensile axis have the output end for stretching into the environmental chamber, are permanently connected in the output end
Force sensor, the pressure holding mechanism is also fixed in the connecting shaft of the force snesor including one end, the connecting shaft it is another
End is for pushing the compress gasket to apply the compression end of thrust；
The normal direction force loading device also includes the pressure value of force snesor feedback to be controlled described in two groups according to two groups
The controller of linear electric motors working condition.
2. HTHP fretting fatigue testing machine according to claim 1, it is characterised in that：The institute of connecting shaft described in both sides
Compression end is stated to stretch into respectively in axial direction in the corresponding gathering sill and apply the compress gasket with thrust.
3. HTHP fretting fatigue testing machine according to claim 1, it is characterised in that：The compress gasket with it is described
The contact end face that sample is in contact is arc surface, plane or sphere, the centerline collineation of compress gasket described in both sides and along described
The radial centre lines of sample extend.
4. HTHP fretting fatigue testing machine according to claim 1, it is characterised in that：The pad guide plate is in circle
Plate-like, the accepting groove is in U-shaped of the opening towards its radial outside, and the pad guide plate is fixed on the fixture.
5. HTHP fretting fatigue testing machine according to claim 1, it is characterised in that：The compress gasket with it is described
Gap is ordinatedly set between gathering sill.
6. HTHP fretting fatigue testing machine according to claim 1, it is characterised in that：The pressure vessel is can
The autoclave of full high temperature and high pressure gas or liquid environment, kettle that the autoclave includes being fixedly installed on the support,
The kettle cover that can be ordinatedly opened and closed on the kettle, the main shaft of the fatigue tester is stretched into through the kettle cover
In the inner chamber of the autoclave.
7. HTHP fretting fatigue testing machine according to claim 6, it is characterised in that：The fixture is fixedly mounted on
The sample is fixedly mounted between the fixture and the main shaft on the kettle cover, the pad guide plate and the kettle
Lid, the fixture are set with being relatively fixed.
8. HTHP fretting fatigue testing machine according to claim 7, it is characterised in that：The fixture includes fixture
Seat, be fixedly connected the clamping fixture seat with many connecting poles of the kettle cover, the pad guide plate is fixedly provided in many institutes
State on connecting pole.
9. HTHP fretting fatigue testing machine according to claim 6, it is characterised in that：The fatigue tester is also wrapped
The relatively described adjustable crossbeam of support upper-lower position is included, the kettle cover is arranged on the crossbeam；The main shaft can be along vertical side
To being located on the crossbeam up and down, it is additionally provided with the crossbeam and is driven for ordering about the lifting that the main shaft is vertically lifted
Motivation structure.
10. HTHP fretting fatigue testing machine according to claim 9, it is characterised in that：The lift drive mechanism
Oil cylinder including being arranged on the crossbeam top, the expansion link of the oil cylinder is extended downwardly from and is connected with the main shaft, described
Another force snesor is additionally provided between main shaft and the expansion link, the main shaft uses another pressure self-balancing tensile axis, institute
The top for stating oil cylinder is additionally provided with displacement transducer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621295478.2U CN206192778U (en) | 2016-11-30 | 2016-11-30 | High temperature high pressure fine motion fatigue testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621295478.2U CN206192778U (en) | 2016-11-30 | 2016-11-30 | High temperature high pressure fine motion fatigue testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483020A (en) * | 2016-11-30 | 2017-03-08 | 苏州热工研究院有限公司 | High Temperature High Pressure fretting fatigue testing machine |
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2016
- 2016-11-30 CN CN201621295478.2U patent/CN206192778U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106483020A (en) * | 2016-11-30 | 2017-03-08 | 苏州热工研究院有限公司 | High Temperature High Pressure fretting fatigue testing machine |
| CN106483020B (en) * | 2016-11-30 | 2023-08-22 | 苏州热工研究院有限公司 | High-temperature high-pressure fretting fatigue testing machine |
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