CN206177710U - Device of test metal material stress corrosion action under fluid high pressure - Google Patents
Device of test metal material stress corrosion action under fluid high pressure Download PDFInfo
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- CN206177710U CN206177710U CN201621133403.4U CN201621133403U CN206177710U CN 206177710 U CN206177710 U CN 206177710U CN 201621133403 U CN201621133403 U CN 201621133403U CN 206177710 U CN206177710 U CN 206177710U
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Abstract
The utility model provides a device of test metal material stress corrosion action under fluid high pressure belongs to metal material testing equipment technical field. The device includes autoclave, electrochemistry workstation, time -recorder, wire tied in a bundle, double -screw bolt, loading nut, loading device roof, binding off screw sleeve, high strength insulating pad, screw sleeve, loading device bottom plate, auxiliary electrode, reference electrode, wire rope, powerful quick -drying adhesive, insulating coating and the rectangle spring scribbled for the stress corrosion action of test metal material under the fluid high pressure. Its loading mode is the constant load loading mode that can conveniently adjust with the stress intensity that the spring was realized. The device can solve the problem that stress conduction leakproofness expected much between the loading device that exists among the prior art and the autoclave, the problem of the inconvenient regulation of loading stress and study electric chemical property's problem in the stress corrosion process of the test of high voltage ring border simultaneously.
Description
Technical field
This utility model is related to metal material testing equipment technical field, particularly relates to a kind of test metal material in fluid
The device of stress corrosion behavior under high pressure.
Background technology
As the depth that people explore ocean is continued to increase, the suitability of the ocean engineering material under the corrosive environment of deep-sea
It is faced with huge test.The real sea exposure test in deep-sea has highly difficult, high investment, high risk of failure, experimental period again
Long natural shortcoming.Therefore at present corrosion experiment of the material under deep sea condition be mainly based on laboratory simulation environment, institute's mould
The environment of plan mainly has high pressure, low temperature, LDO and different solutions composition etc..The simulation of wherein environment under high pressure is relied primarily on
Various types of autoclaves, due to the restriction of the body material selected and manufacturing process, security performance, sealing property etc., one
As higher autoclave its dischargeable capacity of pressure performance will be relatively small, otherwise manufacturing cost will be multiplied, and appropriate
Dischargeable capacity is that the test of material corrosion performance is necessary.Therefore such case is that restriction autoclave equipment is widely used in material
One of principal element of corrosive nature research under high pressure.
In the middle of the corrosion failure phenomenon of material, stress corrosion is a kind of maximum corrosion of destructive and hazardness.It is so-called
Stress corrosion refers to the low stress brittle fracture phenomenon produced in specific environment medium by the material of stress, is characterized in threshold
Stress is low, and crack propagation velocity is fast, and accident easily happens suddenly.Therefore the Sensitivity of Stress Corrosion of material is the research of material corrosion performance
One of focus.According to the difference of stress loading mode, the load modes such as constant load, permanent deformation, slow strain rate can be divided into.
Perseverance deformation sample is that direct bend specimen is allowed to deform and produce tension, such as U-bend sample, C-shaped ring sample
Deng.It is its charger simple structure, compact, easy to operate, it is the sample form commonly used under condition of high voltage, but it is in process of the test
In when crackle produce after can cause stress relaxation, make cracks can spread slack-off or terminate, it is thus possible to do not observe sample and break completely
Situation about splitting, its experimental result also is difficult to quantification.
Slow strain rate loading method is to be opposite to corrosion ring with an invariable or relatively slow strain rate
Sample applying stress in border, the occurrence and development process corroded come accelerated stress by hardening strain state, the method can
The quick Sensitivity of Stress Corrosion for determining material, is a kind of conventional accelerated test method of current stress corrosion research.The method
Shortcoming be that required slow strain rate tension equipment manufacturing cost is higher, volume is larger, its stress conducting parts and corrosive environment room it
Between have the contact interface of relative movement, therefore be generally used for normal pressure or low pressure test (LPT).A kind of Chinese patent " band High Temperature High Pressure circulation
The slow tensile test device of water and using method " (A of CN 103499502) propose it is a kind of can be used for environment under high pressure test it is slow
Stretching device, the device is by slow cupping machine in combination with autoclave, can under high pressure to carry out slow strain rate tension
Test.Its shortcoming remains the contact interface for having relative movement between stress conducting parts and high pressure kettle cover, the sealing at the interface
Reliability is to restrict intrinsic pressure powerful little and device fabrication cost height the principal element that autoclave can be provided.
Constant load load mode is to apply certain load to sample using cupping machine, counterweight, torque, spring etc.,
The working stress that may be subject to for model engineering component or machining stress.Its advantage is that plus load is constant, and sample is in corrosion
Its cross-sectional area is set constantly to reduce due to corroding and cracking in the middle of medium, so that the effective stress on cracking face constantly increases
Plus, compared with permanent deformation sample, it is possible to obtain more stress corrosion performance parameters, such as stress corrosion cracking limit stress, disconnected
Split time, crack growth rate etc..Due to the tensile strength of metal material it is general very high, therefore using cupping machine, counterweight,
Secondary load mechanism required for the load modes such as torque is general also very big, is not suitable for stress corrosion behavior under environment under high pressure
Research.
Chinese patent " a kind of portable axial tensile stress charger " (U of CN 203224399) discloses one kind just
Formula axial tensile stress charger is taken, it adopts rectangle load-bearing frame, make load-bearing frame that bullet to occur by rotation loading nut
Property deformation so as to load axial tensile stress to sample, although the device simple structure, compact, because its stress source is in holding
The elastic deformation of power framework, has certain elastic limit therefore applies stress needed for can not significantly adjusting, and framework presence is needed
The problem to demarcate repeatedly.
Chinese patent " a kind of High Temperature High Pressure constant load stress corrosion experiment method and device " (A of CN 102706750) is public
A kind of method and device for constant load stress corrosion (cracking) test under high temperature and high pressure environment is opened, the method is that prestrain is certain
The sample fixture of stress is fixed in load-bearing frame, although the device simple structure, compact, but integrally it is put into High Temperature High Pressure ring
In border, but the loading of sample is still needed and uses cupping machine, and, load-bearing frame exist problem be, frame material
High-temerature creep itself can cause stress partial relaxation, and stress relaxation can also occur after sample forms crackle, therefore be not one
Strict constant load experimental condition is planted, so as to affect experimental result.
Whether the sample for being spring-loaded certain stress belongs to constant load sample, and people still disagree at present.According to Hooke
Law F=K Δ X, the elongation or decrement Δ X of spring are proportional to stress F, therefore the change of its length directly affects examination
Sample stress is the change of load.But, when metal material occurs stress corrosion cracking, its fracture is generally rock-candy structure, does not have
There is obvious plastic deformation, elongation at break is typically very low, its STRESS VARIATION also phase when choosing spring less with stiffness COEFFICIENT K
Should be less, sample institute can be approximately considered loaded for constant load.
Therefore it can be to meet what is required to be spring-loaded tension type under the experiment condition of some research stress corrosions.
Especially under environment under high pressure, assay device can give full play to the advantage for being not required to the conduction of autoclave extraneous stress.Chinese patent " one
Kind constant load tensile test apparatus " (A of CN 104749029) disclose a kind of spring loads constant load tensile test apparatus, main
To be made up of loading spring, load-bearing frame and chuck.The device still adopts load-bearing frame, there is stress by sample with spring
Conduction.The problem of load-bearing frame and the Stress superposition of spring is perhaps also had while spring loads stress.Outside hoodle pin
Although side is set with insulating bushing to prevent pin and sample from galvanic corrosion occurring, its lagging material is politef, material
It is softer, easily there is creep, and pin is contacted with the loading hole of sample for circular inscribe, therefore insulating bushing can be produced when loading
The great local pressure of life, so as to reduce its insulating reliability.
At present, the stress corrosion behavior test of metal material simple is surveyed except mentioned above to sample loading stress
Beyond the method for examination, the impact of electrochemical signals is also applied to the sample in stress corrosion process, such as applying constant potential makes it
Cathodic polarization, anode polarization, test ac impedance spectroscopy, test electrochemistry noise etc..At present these means of testing are in normal pressure bar
It is widely used in stress corrosion behavior test under part.But under environment under high pressure, need to overcome autoclave effective
How Volume Problems, stress conduction sealing problem, sample stress loading mode integrity problem and apply electrochemical signals
The problems such as.Therefore research and develop a kind of device of test metal material stress corrosion behavior under fluid high-pressure has scientific research value very much.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of test metal material stress corrosion under fluid high-pressure
The device of behavior, can test stress corrosion behavior of the metal material under fluid high-pressure.Its load mode is realized with spring
The conveniently adjusted constant load load mode of stress intensity.Advantage is that charger can be integrally put in autoclave, in stress
Corrosion behavior can also carry out related electrochemical property test while test.
The device includes autoclave, electrochemical workstation, timer, timer power supply, Bundling conducting wire, stud, loading spiral shell
Mother, charger top board, closing in screw shell one, high-strength insulating ring washer one with holes, screw shell one, high-strength insulating band
Hole ring washer two, sample, closing in screw shell two, high-strength insulating ring washer three with holes, screw shell two, high-strength insulating without
Hole ring washer, charger base plate, auxiliary electrode, reference electrode, steel wire rope one, steel wire rope two, strength quick-drying gelatin two, insulation are applied
Coating two, Rectangular Spring, insulation overlay one, strength quick-drying gelatin one；
Wherein, Bundling conducting wire is installed on autoclave kettle cover, by Bundling conducting wire by autoclave outer electrochemical workstation, timing
The wire of device and timer power supply is extended in autoclave；Stud, loading nut, charger top board, closing in screw shell one,
High-strength insulating ring washer one with holes, screw shell one, high-strength insulating ring washer two, sample with holes, closing in screw shell two,
High-strength insulating ring washer three with holes, the non-porous ring washer of screw shell two, high-strength insulating, charger base plate and Rectangular Spring
Collectively constitute the stress loading device of metal material stress corrosion performance testing；Center stud has through hole, and wire is from center stud
Through hole passes through, stud side symmetrical grooving；The face opened round groove of charger top board one, for limiting the horizontal shifting of Rectangular Spring
It is dynamic；Charger top board center is provided with the circular hole with boss, for ensureing to be prevented rotation loading while stud is moved up and down
The torsion produced during nut passes to sample；The face opened round groove of charger base plate one, for limiting the horizontal of Rectangular Spring
Mobile, charger base plate center is provided with threaded cylinder boss；Sample upper and lower ends screw in respectively screw shell one and spiral shell
Stricture of vagina sleeve two；Screw shell one and the outer surface of screw shell two are respectively applied insulation overlay one and insulation overlay two；It is high
Strength dielectric ring washer two with holes, screw shell one and high-strength insulating ring washer one with holes are sequentially placed into closing in screw shell one
In, closing in screw shell screws in again and again stud and tightens；High-strength insulating ring washer three with holes, screw shell two and high intensity are exhausted
The non-porous ring washer of edge is sequentially placed in closing in screw shell two, and closing in screw shell two screws in again the convex of charger base plate center
Platform is simultaneously tightened；Charger top board and charger bottom edge symmetric position difference opened hole, for through the He of steel wire rope one
Steel wire rope two；Auxiliary electrode and reference electrode connect electrochemical workstation by Bundling conducting wire；Sample one end connecting wire is passed through
The through hole of center stud, then electrochemical workstation is connected by Bundling conducting wire；Charger top board and charger bottom panel side
Respectively spot printing strength quick-drying gelatin one and strength quick-drying gelatin two, paste between two points one section of thin wire, and by Bundling conducting wire with
Timer, timer power supply are collectively forming galvanic circle.
Wherein, sample two ends carry cylindrical thread, and guage section is smooth cylindrical, band breach cylinder or band taper cylinder.
The principle that certain stress is loaded to sample is Hooke's law F=K Δ X, and K is the stiffness factor of spring, and Δ X is bullet
The decrement of spring.Loading procedure is：The each part of charger is correctly assembled first, then charger top board is fixed on into operation
On platform, rotation loading nut makes Rectangular Spring shrink Δ X, you can stress F is passed to into sample.
Stress loading device is integrally put in the autoclave of corresponding dischargeable capacity, with autoclave outside without stress conduction.
Screw shell one and screw shell two are adopted and sample identical material manufacture, in order to avoid form corrosion galvanic couple；Screw thread
Sleeve one and the outer surface of screw shell two are respectively applied insulation overlay, screw shell one and the upper and lower ends of screw shell two point
Not Fang Zhi high-strength insulating pad, sample, screw shell one and screw shell two and stress loading device its remaining part are ensured with this
Part forms electric insulation.
The steel wire rope two ends that charger top board and charger bottom edge symmetric position perforate are penetrated secure, and prevent examination
Stress loading device overall separation after sample fracture.
Auxiliary electrode and reference electrode connect electrochemical workstation by Bundling conducting wire；Pass through after the connecting wire of sample one end
The through hole of center stud, then electrochemical workstation is connected by Bundling conducting wire, the purpose of design is realized to sample in stress corruption
Related electrochemical property test is carried out during erosion behavior test.
Charger top board and charger bottom panel side difference spot printing strength quick-drying gelatin, paste between two points one section thin
Wire, and galvanic circle is collectively forming by Bundling conducting wire and timer, timer power supply, the purpose of design is in stress corrosion
If sample fracture during behavior test, the thin wire between strength quick-drying gelatin is set to break during Rectangular Spring rapid elongation
Open, timer quits work, therefore can accurate recording rupture time.
The fluid media (medium) being filled with autoclave, is non-corrosive liquid, corrosive solution, single dry gas or gaseous mixture
The gas of body and different humidity, wherein, gas includes hydrogen, hydrogen sulfide, nitrogen.
Timer is the time set with entity pointer watch dial and entity calendar-disc of electrical energy drive.
Above-mentioned technical proposal of the present utility model has the beneficial effect that：
In such scheme, corresponding effectively appearance can be put in order to overall according to the size adjusting device size of sample, spring
In long-pending autoclave, the requirement to autoclave dischargeable capacity is reduced.Do not need autoclave extraneous during stress corrosion (cracking) test
The conduction of stress, it is to avoid the high problem of stress conduction sealing requirements, for lifting test environmental stress highly significant.To sample
The Principle of Process of loading stress is simple, easy to operate, and reliability is high.The design of the device is made between sample and charger
Insulating reliability it is high, therefore to can ensure that during stress corrosion (cracking) test and only electrochemical signals are applied to sample testing face,
Such as applying constant potential makes its cathodic polarization, anode polarization, ac impedance spectroscopy, test electrochemistry noise etc. is tested, to study sample
Chemical property in the middle of stress corrosion process.The device can solve the problem that loading equipemtn present in prior art and autoclave
Between the stress conduction high problem of sealing requirements, loading stress be inconvenient to the problem for adjusting and tries in environment under high pressure stress corrosion
Study the problem of chemical property during testing simultaneously.
Description of the drawings
Fig. 1 is that the apparatus structure of test metal material stress corrosion behavior under fluid high-pressure of the present utility model is illustrated
Figure；
Fig. 2 is the vertical view and side view of charger stud in Fig. 1, wherein, Fig. 2 a are top view, and Fig. 2 b are side view；
Fig. 3 is the upward view of charger top board in Fig. 1；
Fig. 4 is the top view of charger base plate in Fig. 1；
Fig. 5 is sample side view.
Wherein：1- autoclaves, 2- electrochemical workstations, 3- timers, 4- timer power supplys, 5- Bundling conducting wires, 6- studs,
7- loading nuts, 8- charger top boards, 9- closing ins screw shell one, 10- high-strength insulatings ring washer one with holes, 11- screw threads
Sleeve one, 12- high-strength insulatings ring washer two with holes, 13- samples, 14- closing ins screw shell two, 15- high-strength insulatings are with holes
Ring washer three, 16- screw shells two, the non-porous ring washer of 17- high-strength insulatings, 18- charger base plates, 19- auxiliary electrodes,
20- reference electrodes, 21- steel wire ropes one, 22- steel wire ropes two, 23- strengths quick-drying gelatin two, 24- insulation overlay two, 25- rectangle bullets
Spring, 26- insulation overlays one, 27- strengths quick-drying gelatin one.
Specific embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
This utility model provides a kind of device of test metal material stress corrosion behavior under fluid high-pressure.
The structural representation of the device is illustrated in figure 1, Bundling conducting wire 5 is installed, to realize high pressure on the kettle cover of autoclave 1
The outer electrochemical workstation 2 of kettle 1, timer 3, the wire of timer power supply 4 are extended in autoclave 1；Stud 6, loading nut 7,
Charger top board 8, closing in screw shell one 9, high-strength insulating ring washer 1 with holes, screw shell one 11, high intensity are exhausted
Marginal zone hole ring washer 2 12, sample 13, closing in screw shell 2 14, high-strength insulating ring washer 3 15 with holes, screw shell two
16th, the non-porous ring washer 17 of high-strength insulating, charger base plate 18, Rectangular Spring 25 collectively constitute metal material stress corrosion row
For the stress loading device of test；The center of stud 6 has through hole to accommodate wire to pass through, side symmetrical grooving；Charger top board 8
One face opened round groove, for limiting the transverse shifting of Rectangular Spring 25；The center of charger top board 8 is provided with the circle with boss
Hole, for ensureing that the torsion that stud 6 is produced when preventing rotation loading nut 7 while moving up and down passes to sample 13；Plus
The face opened round groove of bottom set plate 18 1 is carried, for limiting the transverse shifting of Rectangular Spring 25, center has threaded cylinder convex
Platform；Sample 13 is sample of the two ends with cylindrical thread, and its upper and lower ends can respectively screw in screw shell 1 and screw shell
2 16；Screw shell 1 and the outer surface of screw shell 2 16 are respectively applied insulation overlay 1 and insulation overlay two
24；The upper and lower ends of screw shell 1 place high-strength insulating ring washer 1 with holes and high-strength insulating ring washer two with holes
12, in being sequentially placed into closing in screw shell 1, then screw in stud 6 and tighten；The upper ends high-strength insulating of screw shell 2 16
The non-porous ring washer 17 of high-strength insulating is placed in ring washer with holes 3 15, lower end, in being sequentially placed into closing in screw shell 2 14, then revolves
Enter the boss at the center of charger base plate 18 and tighten；Charger top board 8 and the edge symmetric position of charger base plate 18 point
Other opened hole, for through steel wire rope 1 and steel wire rope 2 22；Auxiliary electrode 19 and reference electrode 20 are connected by Bundling conducting wire 5
Connect electrochemical workstation 2；Through the through hole at the center of stud 6 after one end connecting wire of sample 13, then electricity is connected by Bundling conducting wire 5
Chem workstation 2；Spot printing strength quick-drying gelatin 2 23 and strength rapid-curing cutback are distinguished in charger top board 8 and the side of charger base plate 18
Glue 1, pastes between two points one section of thin wire, and is collectively forming with timer 3, timer power supply 4 by Bundling conducting wire 5
Galvanic circle.
Fig. 2 is the top view (2a) and side view (Fig. 2 b) of charger stud, and the manufacture method of stud is using stainless
Steel pole, pole center opened hole, side surface threading, and in both sides symmetric position fluting.
Fig. 3 is the upward view of charger top board, and its manufacture method is that lower surface is along edge using circular stainless steel thick plate
Process appropriate depth and be adapted to the circular groove of spring outer diameter size, heartcut goes out the circular hole with boss, to by opening
Groove stud, and limit its transverse shifting.The both sides symmetric position of top board cuts out plane, to facilitate during loading stress to charger
Clamping.
Fig. 4 is the top view of charger base plate, and its manufacture method is that upper surface is along edge using circular stainless steel thick plate
Process appropriate depth and be adapted to the circular groove of spring outer diameter size, core reserves the circle less than spring inside diameter size
Post, Surface Machining screw thread.
Charger top board and bottom edge symmetric position are punched, for through steel wire rope to avoid sample fracture after load
Device overall separation.
Fig. 5 is sample side view, and two ends processing screw thread, guage section can be smooth cylindrical, band breach cylinder, band taper
Cylinder etc..
Sample upper and lower ends shown in Fig. 1 is similar with the bindiny mechanism of charger top board and charger base plate, screw thread
Sleeve is adopted and the manufacture of sample identical metal material, is directly connected to sample screw thread, it is to avoid form corrosion galvanic couple.Thread bush
Cylinder side surface coating insulating layer, upper and lower ends place high-strength insulating pad, when being tightened on stud with closing in screw shell
The reliable electrical insulation of sample and charger other parts can be ensured.
It is to the specific practice of stress needed for sample loading：The charger top board for assembling sample is fixed on bench vice
Or in special fixture, charger base plate keeps freely vertically moving.Recorded without stress with slide gauge first
Initial its length down, according to Hooke's law F=K Δ X, selected device of spring stiffness coefficient K, it is known that therefore can simple computation go out
The corresponding amount of spring compression Δ X of required loading stress.With spanner or other instrument turn loading nuts, with the back-out of stud,
Spring is compressed, and when its length shortens to computational length, stress loading is completed.
The installation step of this utility model device is as follows：
A () is by stud 6, high-strength insulating ring washer 1 with holes, screw shell one 11, high-strength insulating ring washer with holes
2 12, closing in screw shell 1 is assembled as shown in Figure 1 and tightened；
B () is by the non-porous ring washer 17 of charger base plate 18, high-strength insulating, screw shell 2 16, high-strength insulating band
Hole ring washer 3 15, closing in screw shell 2 14 are assembled as shown in Figure 1 and tightened；
C the wire of the upper end welded bands insulated hull of sample 13 is applied pressure insulating cement by ()；
D () upper end lead of sample 13 is passed through the through hole in the middle of stud 6, and the upper end of sample 13 is screwed in into step (a) assembling
Good mechanism.Sample lower end screws in the mechanism that step (b) is assembled；
E () installs successively Rectangular Spring 25, charger top board 8, loading nut 7；
F () installs steel wire rope 1 and steel wire rope 2 22, and two ends secure；
G () loads load needed for nut 7 applies to sample by turn；
H spot printing strength quick-drying gelatin 1 and strength rapid-curing cutback are distinguished in () charger top board 8 and the side of charger base plate 18
Glue 2 23, pastes between two points one section of thin wire；
I () covers Bundling conducting wire 5 and connects auxiliary electrode 19, reference electrode 20, wire and adds on sample 13 by autoclave 1
Carry top set plate 8 and the lateral conductive lines of charger base plate 18；
J mechanism that () assembles above step is integrally put in autoclave 1, is filled with corrosive medium, and autoclave is intrinsic pressure
Required pressure is promoted to by force；
K () connects electrochemical workstation 2, timer 3, timer power supply 4 by Bundling conducting wire 5, you can carry out fluid high
Pressure stress corrosion correlation test.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from principle described in the utility model, some improvements and modifications can also be made, these improvement
Protection domain of the present utility model is also should be regarded as with retouching.
Claims (7)
1. it is a kind of test metal material stress corrosion behavior under fluid high-pressure device, it is characterised in that：Including autoclave
(1), electrochemical workstation (2), timer (3), timer power supply (4), Bundling conducting wire (5), stud (6), loading nut (7),
Charger top board (8), closing in screw shell one (9), high-strength insulating ring washer one (10) with holes, screw shell one (11),
High-strength insulating ring washer two (12) with holes, sample (13), closing in screw shell two (14), high-strength insulating ring washer three with holes
(15), screw shell two (16), the non-porous ring washer of high-strength insulating (17), charger base plate (18), auxiliary electrode (19), ginseng
Than electrode (20), steel wire rope one (21), steel wire rope two (22), strength quick-drying gelatin two (23), insulation overlay two (24), rectangle bullet
Spring (25), insulation overlay one (26), strength quick-drying gelatin one (27)；
Wherein, Bundling conducting wire (5) is installed, by Bundling conducting wire (5) by the outer electrochemistry work of autoclave (1) on autoclave (1) kettle cover
Stand (2), the wire of timer (3) and timer power supply (4) is extended in autoclave (1)；Stud (6), loading nut (7),
Charger top board (8), closing in screw shell one (9), high-strength insulating ring washer one (10) with holes, screw shell one (11),
High-strength insulating ring washer two (12) with holes, sample (13), closing in screw shell two (14), high-strength insulating ring washer three with holes
(15), screw shell two (16), the non-porous ring washer of high-strength insulating (17), charger base plate (18) and Rectangular Spring (25) are common
With the stress loading device of composition metal material stress corrosion performance testing；There is a through hole at stud (6) center, and wire is from stud (6)
Central through hole passes through, stud (6) side symmetrical grooving；The face opened round groove of charger top board (8), for limiting rectangle bullet
The transverse shifting of spring (25)；Charger top board (8) center is provided with the circular hole with boss, for ensureing that stud (6) is moved up and down
While prevent from for the torsion that produces during rotation loading nut (7) passing to sample (13)；Charger base plate (18) is simultaneously opened
Circular groove, for limiting the transverse shifting of Rectangular Spring (25), charger base plate (18) center is provided with threaded cylinder
Boss；Sample (13) upper and lower ends screw in respectively screw shell one (11) and screw shell two (16)；Screw shell one (11) and
The outer surface of screw shell two (16) is respectively applied insulation overlay one (26) and insulation overlay two (24)；High-strength insulating band
Hole ring washer two (12), screw shell one (11) and high-strength insulating ring washer one (10) with holes is sequentially placed into closing in screw shell
In one (9), closing in screw shell one (9) screws in again stud (6) and tightens；High-strength insulating ring washer three (15), screw thread with holes
Sleeve two (16) and the non-porous ring washer of high-strength insulating (17) are sequentially placed in closing in screw shell two (14), closing in screw shell
Two (14) boss for screwing in charger base plate (18) center again are simultaneously tightened；Charger top board (8) and charger base plate
(18) edge symmetric position difference opened hole, for through steel wire rope one (21) and steel wire rope two (22)；Auxiliary electrode (19) and
Reference electrode (20) connects electrochemical workstation (2) by Bundling conducting wire (5)；Sample (13) one end connecting wire passes through stud
(6) through hole at center, then electrochemical workstation (2) is connected by Bundling conducting wire (5)；Charger top board (8) and charger
Spot printing strength quick-drying gelatin one (27) and strength quick-drying gelatin two (23) are distinguished in base plate (18) side, paste one section between two points and carefully lead
Line, and galvanic circle is collectively forming by Bundling conducting wire (5) and timer (3), timer power supply (4).
2. the device of test metal material stress corrosion behavior under fluid high-pressure according to claim 1, its feature exists
In：Sample (13) two ends carry cylindrical thread, and guage section is smooth cylindrical, band breach cylinder or band taper cylinder.
3. the device of test metal material stress corrosion behavior under fluid high-pressure according to claim 1, its feature exists
In：The stress loading device is integrally put in the autoclave of corresponding dischargeable capacity, with autoclave outside without stress conduction.
4. the device of test metal material stress corrosion behavior under fluid high-pressure according to claim 1, its feature exists
In：The screw shell one (11) and screw shell two (16) are adopted and sample (13) identical material manufacture；Screw shell one
And the outer surface of screw shell two (16) is respectively applied insulation overlay, screw shell one (11) and screw shell two (16) (11)
Upper and lower ends place respectively high-strength insulating pad.
5. the device of test metal material stress corrosion behavior under fluid high-pressure according to claim 1, its feature exists
In：The steel wire rope two ends that the charger top board (8) and the symmetric position perforate of charger base plate (18) edge are penetrated secure,
Prevent stress loading device overall separation after sample (13) fracture.
6. the device of test metal material stress corrosion behavior under fluid high-pressure according to claim 1, its feature exists
In：The fluid media (medium) being filled with the autoclave (1), is non-corrosive liquid, corrosive solution, single dry gas or mixing
The gas of gas and different humidity, wherein, gas includes hydrogen, hydrogen sulfide, nitrogen.
7. the device of test metal material stress corrosion behavior under fluid high-pressure according to claim 1, its feature exists
In：The timer (3) for electrical energy drive the time set with entity pointer watch dial and entity calendar-disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621133403.4U CN206177710U (en) | 2016-10-18 | 2016-10-18 | Device of test metal material stress corrosion action under fluid high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621133403.4U CN206177710U (en) | 2016-10-18 | 2016-10-18 | Device of test metal material stress corrosion action under fluid high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177710U true CN206177710U (en) | 2017-05-17 |
Family
ID=58678982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621133403.4U Expired - Fee Related CN206177710U (en) | 2016-10-18 | 2016-10-18 | Device of test metal material stress corrosion action under fluid high pressure |
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| Country | Link |
|---|---|
| CN (1) | CN206177710U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106442136A (en) * | 2016-10-18 | 2017-02-22 | 北京科技大学 | Device for testing stress corrosion behavior of metal material under fluid high pressure |
| CN107192663A (en) * | 2017-07-25 | 2017-09-22 | 广东电网有限责任公司电力科学研究院 | A kind of test system for evaluating the powered military service performance of isolation switch contact material |
| CN110793911A (en) * | 2019-11-05 | 2020-02-14 | 天津大学 | Method for simulating corrosion characteristics of metal under dry-wet cycle and tensile stress coupling effect |
| CN114813338A (en) * | 2022-04-08 | 2022-07-29 | 中国长江三峡集团有限公司 | Drawing-electrochemical corrosion coupling test device |
| CN114905442A (en) * | 2022-06-21 | 2022-08-16 | 哈尔滨工业大学 | Special fixture for loading and positioning high-strength steel wire |
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2016
- 2016-10-18 CN CN201621133403.4U patent/CN206177710U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442136A (en) * | 2016-10-18 | 2017-02-22 | 北京科技大学 | Device for testing stress corrosion behavior of metal material under fluid high pressure |
| CN106442136B (en) * | 2016-10-18 | 2023-09-01 | 北京科技大学 | Device for testing stress corrosion behavior of metal material under high pressure of fluid |
| CN107192663A (en) * | 2017-07-25 | 2017-09-22 | 广东电网有限责任公司电力科学研究院 | A kind of test system for evaluating the powered military service performance of isolation switch contact material |
| CN107192663B (en) * | 2017-07-25 | 2023-04-25 | 广东电网有限责任公司电力科学研究院 | Test system for evaluating electrified service performance of disconnecting switch contact material |
| CN110793911A (en) * | 2019-11-05 | 2020-02-14 | 天津大学 | Method for simulating corrosion characteristics of metal under dry-wet cycle and tensile stress coupling effect |
| CN110793911B (en) * | 2019-11-05 | 2022-03-18 | 天津大学 | Method for simulating corrosion characteristics of metal under dry-wet cycle and tensile stress coupling effect |
| CN114813338A (en) * | 2022-04-08 | 2022-07-29 | 中国长江三峡集团有限公司 | Drawing-electrochemical corrosion coupling test device |
| CN114905442A (en) * | 2022-06-21 | 2022-08-16 | 哈尔滨工业大学 | Special fixture for loading and positioning high-strength steel wire |
| CN114905442B (en) * | 2022-06-21 | 2024-01-30 | 哈尔滨工业大学 | Special fixture for loading and positioning high-strength steel wire |
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