CN206848139U - A kind of metal corrosion test test piece clamping device - Google Patents
A kind of metal corrosion test test piece clamping device Download PDFInfo
- Publication number
- CN206848139U CN206848139U CN201720674903.7U CN201720674903U CN206848139U CN 206848139 U CN206848139 U CN 206848139U CN 201720674903 U CN201720674903 U CN 201720674903U CN 206848139 U CN206848139 U CN 206848139U
- Authority
- CN
- China
- Prior art keywords
- test piece
- disk
- hanger bar
- clamping device
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of metal corrosion test test piece clamping device, including hanger bar, be connected with hanger bar and drive hanger bar rotate drive mechanism and multiple disks being sleeved on along the hanger bar length direction and coaxial threaded in hanger bar, the holding holes of test piece can be clamped by along the circumferential direction being offered on the disk, the test piece is vertically fixed between two neighbouring disks, multiple teeth with the test piece linear contact lay are laid with holding holes, axial direction of multiple teeth along the holding holes is uniformly laid, the gear tip clearance of the two neighboring teeth is away from more than 1mm.When the utility model can ensure that test piece clamping device rotates with drive mechanism, it can effectively avoid easily occurring the most sensitive slit width scope of crevice corrosion, so as to avoid test piece that crevice corrosion occurs in electrolyte solution, the validity and accuracy of test data are ensure that, and can be ensured when test piece rotates with motor without departing from clamping device.
Description
Technical field
The utility model belongs to metal corrosion test technical field, and in particular to a kind of metal corrosion test is clamped with test piece
Device.
Background technology
In industrial gas oil production process, the CO in medium2、H2S, sewage etc. can cause corruption to pipeline and equipment
Erosion, so as to cause oil and gas leakage, cause the adverse consequences such as environmental pollution, personnel's injury and economic loss.
Pipeline is examined currently with laboratory corrosiontesting method and equips corrosive nature of the material in production status
Through the Main Basiss as material selection and safety evaluation, it is the most frequently used, most economical, most effective to soak weight-loss method in the prior art
Test method, and be most widely used, pipeline or equipment are drilled through test piece by immersion weight-loss method first in concrete operations,
Test piece is arranged on fixture, then fixture is connected with autoclave and carries out corrosion test.
Dynamic environment in laboratory for simulation field working conditions, such as crude oil flow environment, utilizes bolt, corrosion-resistant non-gold more
Test piece is fixed on fixture by the connector of category material or Surface coating polytetrafluoroethylene (PTFE), so makes test piece and fixture fix tightly
Gu ensureing test piece, heavy curtain is dynamic or even drops, still, there are following problems in this mounting means：In some particular mediums, such as have
Fe3+Electrolyte solution in, the gap width of test piece and fixture joint place is likely to be at the most sensitive seam that crevice corrosion easily occurs
In wide scope, most sensitive slit width scope is 25 μm~150 μm, if gap width, which is located in the range of most sensitive slit width, easily induces examination
Crevice corrosion occurs for piece, so as to have a strong impact on the accuracy of result of the test and validity, and installation method complex operation at present, increases
The big time used in experiment, reduce test efficiency.
Utility model content
Technical problem to be solved in the utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of metal
Corrosion test test piece clamping device, its is simple in construction, and test piece is linear contact lay with the teeth in holding holes, and two neighboring described
The gear tip clearance of teeth so can effectively avoid the easy most sensitive slit width scope that crevice corrosion occurs, so as to avoid away from more than 1mm
Crevice corrosion occurs in electrolyte solution for test piece, ensure that the validity and accuracy of test data, and can ensure test piece
Without departing from clamping device when being rotated with motor.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of metal corrosion test test piece
Clamping device, it is characterised in that：Including hanger bar, the drive mechanism and more that be connected with hanger bar and drive hanger bar rotation
The individual disk being sleeved on along the hanger bar length direction and coaxial threaded in hanger bar, along the circumferential direction open up on the disk
The holding holes of test piece can be clamped by having, and the test piece is vertically fixed between two neighbouring disks, the holding holes
Inside it is laid with multiple teeth with the test piece linear contact lay, axial direction uniform cloth of multiple teeth along the holding holes
If the gear tip clearance of the two neighboring teeth is away from more than 1mm.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The disk is by close to the suspension
First disk of bar bottom and the second disk composition above first disk, the holding holes are respectively to be arranged on the
Blind hole one on one disk and the through hole being arranged on the second disk and blind hole two, the through hole and the blind hole two are along described the
Lay at the circumferencial direction interval of two disks.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The quantity of second disk is more
Individual, through hole on two neighboring second disk is relative with blind hole two to be laid, blind hole one on the first disk and with the first circle
The relative laying of through hole on the second adjacent disk of disk.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The disk is fixed on by nut
In the hanger bar.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The holding holes are rectangular opening.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The center of the disk opens up
There is the screwed hole passed through for the hanger bar.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The drive mechanism include motor and
The power transmission shaft being connected with the motor, the power transmission shaft are connected with the hanger bar.
A kind of above-mentioned metal corrosion test test piece clamping device, it is characterised in that：The motor is variable-frequency motor.
The utility model has advantages below compared with prior art：
1. the utility model is simple in construction, reasonable in design, by along the circumferential direction equal on the first disk and the second disk
Test piece is fixed the holding holes opened up, and the test piece is linear contact lay with the teeth in holding holes, can so ensure to drive
When driving the rotation of test piece clamping device, the gap between test piece and holding holes is not at that the most quick of crevice corrosion occurs for mechanism
Feel in the range of slit width, effectively avoid test piece that the phenomenon of crevice corrosion occurs, improve the validity and accuracy of test data.
2. metal corrosion test provided by the utility model is driven by drive mechanism with test piece clamping device and test piece is housed
Fixture rotate in the electrolytic solution, each surface of test piece can be made and electrolyte is full and uniform contacts, not only increase experiment effect
Rate, while the dynamic environment at the scene of also can effectively simulating.
In summary, the utility model is simple in construction, easy to operate, reasonable in design, effectively avoids test piece that gap occurs rotten
The phenomenon of erosion, improves the validity and accuracy of test data, and applicability is very strong.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is use state figure of the present utility model.
Fig. 3 is the structural representation of the second disk in the utility model.
Fig. 4 is A-A revolved sectional views in Fig. 3.
Fig. 5 is enlarged drawing at B in Fig. 3.
Description of reference numerals:
1-motor；2-hanger bar；3-the first disk；
4-the second disk；5-test piece；6-blind hole one；
7-1-through hole；7-2-blind hole two；8-nut；
9-power transmission shaft；10-autoclave；11-autoclave closure；
12-teeth.
Embodiment
As shown in Figures 1 to 5, a kind of metal corrosion test described in the utility model includes suspension with test piece clamping device
Bar 2, the drive mechanism and multiple same along the length direction of hanger bar 2 for being connected with hanger bar 2 and driving hanger bar 2 to rotate
Axle thread is sleeved on the disk in hanger bar 2, and the holding holes that can clamp test piece 5, institute are along the circumferential direction offered on the disk
Test piece 5 is stated vertically to be fixed between two neighbouring disks, be laid with the holding holes it is multiple with the examination
The teeth 12 of the linear contact lay of piece 5, axial direction of multiple teeth 12 along the holding holes are uniformly laid, the two neighboring tooth
The gear tip clearance of tooth 12 is more than 1mm away from d.
During specific experiment, the both ends of the test piece 5 are arranged in holding holes, be laid with the holding holes it is multiple and institute
The teeth 12 of the linear contact lay of test piece 5 are stated, and the gear tip clearance of the two neighboring teeth 12 is more than 1mm away from d, in the specific implementation, drives
Motivation structure drives the rotation of test piece clamping device, and the test piece 5 rotates with test piece clamping device, due to test piece 5 and the teeth 12
It is more than 1mm away from d for linear contact lay and the gear tip clearance of the two neighboring teeth 12, so avoids and the most sensitive of crevice corrosion occurs
Slit width scope, avoid the end of test piece 5 that crevice corrosion phenomenon occurs, test piece 5 is effectively tested, improves the essence of test data
True property and validity.
In the present embodiment, the disk by close to the bottom of hanger bar 2 the first disk 3 and it is multiple be located at described first
Second disk 4 of the top of disk 3 forms, and the holding holes are respectively the blind hole 1 being arranged on the first disk 3 and are arranged on the
The circumference of through hole 7-1 and blind hole two 7-2, the through hole 7-1 and the 7-2 of the blind hole two along second disk 4 on two disks 4
Lay at direction interval.
Laid when it is implemented, hanger bar 2 is set, disc level is sleeved in hanger bar 2, and the both ends of test piece 5 are distributed
Between the disk, test piece 5 is set to be in vertical state, due to the inwall, through hole 7-1 or blind hole two of the blind hole 1
It is linear contact lay between 7-2 inwall and the test piece 5.
During specific experiment, the quantity of second disk 4 is multiple, multiple second disks 4 vertically screw thread
It is sleeved in the hanger bar 2, the through hole 7-1 on second disk 4 is relative with the 7-2 of blind hole two on adjacent second disk 4
Lay, the through hole 7-1 in blind hole 1 and the second disk 4 adjacent with the first disk 3 on the first disk 3 is relative to be laid, preferably
, the quantity of second disk 4 is three, three second disks 4 vertically thread set in the hanger bar 2
On, and three second disks 4 are respectively the second disk I, the second disk II and the second disk III, second disk I, the
Two disks II and the second disk III are set gradually from bottom to up along the hanger bar 2, when it is implemented, three second disks
4 and first disk 3 can clamp three layers of test piece, three layers of test piece are respectively first layer test piece, second layer test piece and third layer test piece,
First disk 3 and the second disk I are used for installing first layer test piece, and the second disk I and the second disk II are used for installing second layer examination
Piece, the second disk II and the second disk III are used for installing third layer test piece, multiple test pieces 5 can so be carried out by once testing
Metal corrosion test, avoid test of many times from causing efficiency low, and cause test data not smart due to need to repeatedly configure electrolyte
True phenomenon.
During specific experiment, the holding holes being opened on the second disk 4 are made up of through hole 7-1 and the 7-2 of blind hole two, so
The benefit of design is：The through hole 7-1 opened up on second disk I is used for fixing the top of first layer test piece, second circle
The 7-2 of blind hole two opened up on disk I is used for fixing the bottom of second layer test piece, and the through hole 7-1 similarly opened up on the second disk II is used
To fix the top of second layer test piece, the 7-2 of blind hole two opened up on second disk II is used for fixing the bottom of third layer test piece
End, the through hole 7-1 opened up on second disk III are used for fixing the top of third layer test piece, such second disk I both as
The top fixed disc of first layer test piece is again as the bottom fixed disc of second layer test piece, the second disk II and the second disk III
Effect similarly, so multiple test pieces 5 can be layered fixation, avoid multiple test pieces 5 being fixed on one layer so as to cause each examination
Piece 5 can not fully contact the phenomenon of electrolyte, so not only save space, make full use of space, the standard of guarantee test data
True property, at the same it is also easy for installation, material is saved, applicability is extremely strong.
In the present embodiment, the disk is fixed in the hanger bar 2 by nut 8, when specifically testing, institute's drive mechanism
The first disk 3 and the second disk 4 is driven to rotate, the first disk 3 and the second disk 4 can be fixed in hanger bar 2 by nut 8, be kept away
Exempt from the first disk 3 and break-off occurs when rotated for the second disk 4, influence being smoothed out for experiment.
In the present embodiment, the holding holes are rectangular opening, and the purpose so designed is：During specific experiment, the test piece 5 is
Strip test piece, rectangular opening are easy to the installation of test piece 5, are the advantages of rectangular opening opposing circular hole：Because test piece 5 is strip test piece,
During specific experiment, strip test piece passes through holding holes, if holding holes are circular hole, is not easy to passing through for strip test piece.
In the present embodiment, the disk is polytetrafluoroethylene (PTFE) disk, and quality I effectively mitigates whole test piece clamping device
Weight, and polytetrafluoroethylene (PTFE) disk acid and alkali-resistance preferably and high temperature resistant, 200 DEG C~250 DEG C can be born, avoid electrolyte solution temperature
When spending high, ruckbildung occurs for the first disk 3 and the second disk 4.
In the present embodiment, the center of the disk offers the screwed hole passed through for the hanger bar 2.
In the present embodiment, the drive mechanism includes motor 1 and the power transmission shaft 9 being connected with the motor 1, the power transmission shaft
9 are connected with the hanger bar 2, and the motor 1 is variable-frequency motor, and variable-frequency motor can control turning for whole test piece clamping device
Speed, adapt to different test requirements documents.
The utility model provides a kind of method for carrying out corrosion test with test piece clamping device using metal corrosion test, should
Method comprises the following steps：
Step 1: the determination of the test piece holding sheet number of plies：According to formulaCalculate the number of plies of test piece holding sheet
N, wherein, M is the total quantity for the test piece 5 that actual corrosion test needs are tested, and m can install test piece between two neighboring disk
5 quantity, N are the holding sheet number of plies of test piece 5, wherein, N, M and m are the positive integer not less than 1；
Step 2: the second disk determination of amount：According to the number of plies N of the test piece holding sheet determined in step 1, is determined
The quantity n of two disk 4, wherein, n=N；
Step 3: the installation of the first disk and the second disk：First, hanger bar 2 is laid in vertical, by one first circle
Disk 3 is arranged in hanger bar 2, and then, the n determined in step 2 the second disks 4 are sequentially arranged in hanger bar 2, wherein,
7-2 opening portions of blind hole two on the opening portion of blind hole 1 and the second disk 4 on first disk 3 form N layers and are used for towards identical
Clamp test piece 5 test piece holding sheet, wherein, along hanger bar 2 sequentially form from the bottom to top the 1st test piece holding sheet ..., N try
Piece holding sheet；
Step 4: judging whether the number of plies N of test piece holding sheet is more than 1：If N is more than 1, step 5 is performed；If N is not more than 1,
Perform step 6；
Step 5: in N layer test piece holding sheets test piece installation：By test piece 5 successively be arranged on the 1st test piece holding sheet ...,
N test piece holding sheets, specific operation process are as follows：
The installation of test piece in step 501, the 1st test piece holding sheet：First, the He of the first disk 3 is adjusted according to the height of test piece 5
Spacing between the second disk 4 adjacent with the first disk 3, and make through hole 7-1 on the second disk 4 with the first disk 3
Blind hole 1 be oppositely arranged；Then, test piece 5 is stretched on the first disk 3 through the through hole 7-1 on the second disk 4 one by one
In blind hole 1, the installation of test piece 5 in the 1st test piece holding sheet is completed；
The installation of test piece in step 502, jth test piece holding sheet：Any one test piece 5 in jth test piece holding sheet is distinguished
Installed, wherein, j is positive integer and 1<J≤N, the installation method all same of any one test piece 5 in jth test piece holding sheet；
When wherein being installed to any one test piece 5 in jth test piece holding sheet, specific installation process is as follows：
Step 5021, the spacing between two neighboring second disk 4 adjusted according to the height of test piece 5, and made two neighboring
The through hole 7-1 of second disk 4 and another the second disk 4 in two neighboring second disk 4 blind hole two in second disk 4
7-2 is oppositely arranged；
Step 5022, the through hole 7-1 of second disk 4 in two neighboring second disk 4 is passed through to stretch to phase the test piece 5
In adjacent two the second disks 4 in the 7-2 of blind hole two of another the second disk 4, the installation of a test piece 5 is completed；
Step 5023, step 5022 is repeated several times, until completing the installation of test piece 5 in jth test piece holding sheet；
Step 503, (N-1) secondary repeat step 502, until completing the installation of test piece in N layer test piece holding sheets；
Step 6: the installation of test piece：Spacing between first disk 3 and the second disk 4 is adjusted according to the height of test piece 5,
And the through hole 7-1 on the second disk 4 is set to be oppositely arranged with the blind hole 1 on the first disk 3；Then, test piece 5 is passed through one by one
Through hole 7-1 on second disk 4 is stretched in the blind hole 1 on the first disk 3, completes the installation of test piece；
Step 7: the corrosion test of test piece：First, it is the hanger bar 2 that test piece 5 is provided with step 5 or step 6 is vertical
Stretch into the autoclave 10 for accommodating electrolyte；Then, by autoclave closure 11 through the top of hanger bar 2 and by autoclave
Closure 11 is held on autoclave 10；Finally, the top of hanger bar 2 is connected with drive mechanism, opens drive mechanism, make drive
Motivation structure drives hanger bar 2 to rotate, and test piece 5 rotates in the electrolytic solution with hanger bar 2 carries out corrosion test, until test piece 5 is corroded
Degree reaches test requirements document.
When it is implemented, first according to actual corrosion test need the total quantity of test piece tested and two neighboring disk it
Between the quantity of test piece 5 can be installed determine that test piece holding sheet number of plies N, N layer test piece can ensure every layer of test piece fully and electrolyte
Contact, the validity of guarantee test data, the second disk quantity n is determined further according to test piece mounting layer number of plies N, then by needed for experiment
Hanger bar 2, the first disk 3 and the second disk 4 assembled, then test piece 5 is successively installed in mounting layer, due to the second disk
The through hole 7-1 set on 4, can so facilitate the installation of test piece 5, and autoclave closure 11 finally is passed through into hanger bar 2, complete gold
Belong to the use of corrosion test test piece erecting device, test piece 5 is sealingly disposed in autoclave 10, whole application method operation letter
It is single, under the premise of test data measured by guarantee is accurate effectively, test period is shortened, improves operating efficiency.
During concrete operations, drive mechanism is opened, makes drive mechanism drive hanger bar 2 to rotate, test piece 5 is with hanger bar 2 in electricity
Solve rotation in liquid and carry out corrosion test, during rotation, because test piece 5 and the holding holes are linear contact lay, so avoid
The most sensitive slit width scope of crevice corrosion easily occurs, so as to effectively prevent test piece 5 from crevice corrosion phenomenon occurs.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and the equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (8)
- A kind of 1. metal corrosion test test piece clamping device, it is characterised in that：It is driven including hanger bar (2), with hanger bar (2) Connect and drive drive mechanism that hanger bar (2) rotates and multiple be set with along the hanger bar (2) length direction and coaxial threaded Disk in hanger bar (2), the holding holes that can clamp test piece (5), the test piece are along the circumferential direction offered on the disk (5) be vertically fixed between two neighbouring disks, be laid with the holding holes it is multiple with the test piece (5) The teeth (12) of linear contact lay, axial direction of multiple teeth (12) along the holding holes are uniformly laid, two neighboring described The gear tip clearance of teeth (12) is away from more than 1mm.
- 2. according to a kind of metal corrosion test test piece clamping device described in claim 1, it is characterised in that：The disk by The second disk (4) composition close to first disk (3) of the hanger bar (2) bottom and above first disk (3), The holding holes are respectively the blind hole one (6) being arranged on the first disk (3) and the through hole (7- being arranged on the second disk (4) 1) and blind hole two (7-2), the circumferencial direction interval of the through hole (7-1) and the blind hole two (7-2) along second disk (4) Lay.
- 3. according to a kind of metal corrosion test test piece clamping device described in claim 2, it is characterised in that：Second circle The quantity of disk (4) is multiple, through hole (7-1) relative laying with blind hole two (7-2) on two neighboring second disk (4), The through hole (7-1) in blind hole one (6) and the second disk (4) adjacent with the first disk (3) on first disk (3) is with respect to cloth If.
- 4. according to a kind of metal corrosion test test piece clamping device described in claim 1, it is characterised in that：The disk leads to Nut (8) is crossed to be fixed in the hanger bar (2).
- 5. according to a kind of metal corrosion test test piece clamping device described in claim 1, it is characterised in that：The holding holes For rectangular opening.
- 6. according to a kind of metal corrosion test test piece clamping device described in claim 1, it is characterised in that：The disk Center offers the screwed hole passed through for the hanger bar (2).
- 7. according to a kind of metal corrosion test test piece clamping device described in claim 1, it is characterised in that：The driving machine Structure includes motor (1) and the power transmission shaft (9) being connected with the motor (1), and the power transmission shaft (9) is connected with the hanger bar (2).
- 8. according to a kind of metal corrosion test test piece clamping device described in claim 7, it is characterised in that：The motor (1) it is variable-frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720674903.7U CN206848139U (en) | 2017-06-09 | 2017-06-09 | A kind of metal corrosion test test piece clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720674903.7U CN206848139U (en) | 2017-06-09 | 2017-06-09 | A kind of metal corrosion test test piece clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206848139U true CN206848139U (en) | 2018-01-05 |
Family
ID=60799699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720674903.7U Expired - Fee Related CN206848139U (en) | 2017-06-09 | 2017-06-09 | A kind of metal corrosion test test piece clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206848139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990034A (en) * | 2017-06-09 | 2017-07-28 | 西安科技大学 | A kind of metal corrosion test test piece clamping device and corrosion tests |
-
2017
- 2017-06-09 CN CN201720674903.7U patent/CN206848139U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990034A (en) * | 2017-06-09 | 2017-07-28 | 西安科技大学 | A kind of metal corrosion test test piece clamping device and corrosion tests |
| CN106990034B (en) * | 2017-06-09 | 2024-02-02 | 西安科技大学 | Test piece clamping device for metal corrosion test and corrosion test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104964911B (en) | A kind of corrosion fatigue test apparatus under wet hydrogen sulfide environment and its test method | |
| CN103257104B (en) | A kind of protective materials cold-and-heat resistent pulsating fatigue test unit | |
| CN101846614B (en) | Temperature and pressure controllable rotary erosion experiment apparatus | |
| CN109238901A (en) | A kind of multichannel erosion corrosion test macro and method | |
| CN101923042B (en) | Test method for simulating couple corrosion in seawater scouring environment | |
| CN106248568A (en) | Pipelines in deep sea stress corrosion complex loading assay device | |
| CN203858173U (en) | Simple device for slow strain stress corrosion test | |
| CN107167295B (en) | Vertical bearing temperature is adjustable experiment water hole | |
| CN104833628B (en) | A kind of tank floor inspection simulator and simulation storage tank | |
| CN202614645U (en) | Multi-flow-speed simulation test device for high-pressure autoclave | |
| CN206848139U (en) | A kind of metal corrosion test test piece clamping device | |
| CN107656160A (en) | The experimental rig and analysis method of twisting type carbon-fibre wire aging characteristics | |
| CN110542649A (en) | Multifunctional liquid single-phase flow flowing corrosion testing loop | |
| CN111239032B (en) | Multiphase flow multiphase visual corrosion test device and method | |
| CN109520919A (en) | A kind of corrosion simulated device and method of on-line checking multiphase flow pipeline oil-water interfaces | |
| CN107421878A (en) | A kind of corrosion experimental device and method of testing for simulating continuous duty operation | |
| CN103471984A (en) | Simulation test device and simulation test method for corrosion resistance of protective coating | |
| CN106990034A (en) | A kind of metal corrosion test test piece clamping device and corrosion tests | |
| CN205138886U (en) | Down tensile sample card dress device of tensile experiment machine corrosive medium | |
| CN209148468U (en) | A kind of multichannel erosion corrosion test macro | |
| US9664666B2 (en) | Apparatus and methods for qualifying compositions | |
| CN201673109U (en) | Temperature and pressure controllable rotation type erosion experimental device | |
| CN106323850A (en) | Device and method for evaluating corrosion resistance of inner coating of drill pipe | |
| CN113740240B (en) | Corrosion inhibition performance testing device and method for corrosion inhibitor and application | |
| CN205049461U (en) | Novel metal lacing film survey corrosion test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |