CN108195750A - Multifactor synergistic effect Dynamic Corrosion test device - Google Patents
Multifactor synergistic effect Dynamic Corrosion test device Download PDFInfo
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- CN108195750A CN108195750A CN201810265665.3A CN201810265665A CN108195750A CN 108195750 A CN108195750 A CN 108195750A CN 201810265665 A CN201810265665 A CN 201810265665A CN 108195750 A CN108195750 A CN 108195750A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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Abstract
The invention discloses multifactor synergistic effect Dynamic Corrosion test devices, are related to corrosion electrochemistry field.The present invention include for hold corrosive liquid and corrosion liquid bath with temperature control function, for driving the drive system of corrosive liquid flowing, three-electrode system, for acquiring the electrochemical workstation of electrochemical signals and vibrating motor, corrosion liquid bath, drive system and three-electrode system are sequentially communicated and are formed into a loop by woven hose, the working electrode of three-electrode system and the mechanical oscillation arm of vibrating motor are connected by hard conducting wire, and three-electrode system is connect with electrochemical workstation.Each dynamic factor including temperature, water velocity, impact angle, vibration frequency, can be incorporated into the same space and carried out, can both carried out single factors Dynamic Corrosion experiment, can also be carried out at the same time the corrosion experiment of multifactor effect by the present invention.
Description
Technical field
The present invention relates to corrosion electrochemistry field, more particularly to multifactor synergistic effect Dynamic Corrosion test dress
It puts.
Background technology
Complete and fine and close corrosion products film is covered with corrosion is slowed down, protects the effect of parent metal, but in reality
The effect that the corrosion products film of base metal surface can be usually worn during use, it is easy to be thinned and even rupture, make
Parent metal corrosion rate increases, such as boxcar, bridge plate, the deck of boat, inner wall of the pipe etc..Due to answering for true corrosive environment
Polygamy so that real-time testing is difficult on the spot, and therefore, design and manufacture can be close to the dynamic corruption of the true Service Environment of material
Erosion experimental provision is particularly important.At present, the design of Dynamic Corrosion experimental provision be primarily upon temperature and flow velocity two because
Element.Temperature is controlled by pyroreaction kettle or other heating and heat-insulating devices, and test piece is rotated in different ways and carrys out simulated flow
Speed.The shortcomings that this kind of design is the state that test piece is in high-speed motion, can not realize the real-time testing of electrochemical data.Together
When, corrosive liquid also can together be rotated with sample, and flow velocity can not be measured accurately.In order to solve this test problem, the prior art
By fixing test piece in gutter channel, the real-time testing result of the electrochemical data in the state of corrosive liquid flowing is obtained.This
Kind structure can only obtain influence of the flow velocity to sample corrosion resistance, and influence factor is excessively single, can not meet multifactor collaboration
Dynamic Corrosion test under effect；In addition, directly have larger impact to the result of electro-chemical test using Vidacare corp, electricity
The self-contained electric signal of dynamic driving device can cause three-electrode system a degree of interference, influence the accurate of experimental data
Property.
Invention content
It is an object of the invention to：In order to solve, influence factor is excessively single in current Dynamic Corrosion experimental facilities and adopts
The problem of causing experimental result inaccuracy with Vidacare corp, the present invention provide multifactor synergistic effect Dynamic Corrosion test
Device is tested with the Dynamic Corrosion realized under temperature, erosion speed, impact angle and vibration frequency factor while action condition,
Obtain the real-time testing result of electrochemical data.
The present invention specifically uses following technical scheme to achieve these goals：
Multifactor synergistic effect Dynamic Corrosion test device, including being used to hold corrosive liquid and there is the corrosion of temperature control function
Liquid bath, for drive corrosive liquid flow drive system, three-electrode system, the electrochemical workstation for acquiring electrochemical signals
And vibrating motor, the corrosion liquid bath, drive system and three-electrode system are joined end to end and are formed successively by woven hose
Circuit, the mechanical oscillation arm of working electrode and vibrating motor is connected by hard conducting wire in the three-electrode system, three electrode
System is connect with electrochemical workstation.
In preferred embodiments of the present invention, drive system include air compressor, diaphragm pump, the air compressor with
It is connected between diaphragm pump by appendix, the inlet of the diaphragm pump is connected with inside corrosion liquid bath by woven hose, described
The liquid outlet of diaphragm pump is connected with three-electrode system by woven hose.
In preferred embodiments of the present invention, it is provided with to control liquid on the pipeline between diaphragm pump and three-electrode system
The control valve of body flow velocity.
In preferred embodiments of the present invention, control valve is V-type ball valve.
In preferred embodiments of the present invention, three-electrode system includes three-way pipe, working electrode, the reference electrode with salt bridge
And auxiliary electrode, the three-way pipe pass through clamp connection, the threeway with woven hose respectively in inverted T shaped and its both ends port
The port in tube top portion can be inserted into working electrode, reference electrode and auxiliary electrode with salt bridge, the working electrode, with salt bridge
Reference electrode and auxiliary electrode are connect with electrochemical workstation.
In preferred embodiments of the present invention, the passage port of three-way pipe upper end is equipped with end cap, is offered on the end cap point
Three mounting holes of the reference electrode with salt bridge, auxiliary electrode and working electrode Yong Yu be installed, the working electrode with it is hard
Conducting wire connects, and the hard conducting wire is equipped with angle dial, and the erosion angle pointer coordinated with angle dial is additionally provided on end cap.
In preferred embodiments of the present invention, it is arranged on reference electrode and auxiliary electrode with salt bridge and matches with mounting hole
The rubber stopper of conjunction.
In preferred embodiments of the present invention, the material of the liner of woven hose three-way pipe and V-type ball valve selects corrosion resistant
Lose material.
In preferred embodiments of the present invention, multifactor synergistic effect Dynamic Corrosion test device further includes vibrating motor,
The working electrode passes through mounting hole by hard conducting wire, is not contacted with end cap, directly connects with the mechanical oscillation arm of vibrating motor
It connects..
In preferred embodiments of the present invention, corrosion liquid bath includes groove body and temperature regulating device, and the temperature regulating device includes electricity
Heat pipe and thermocouple, and the electric heater, thermocouple are respectively positioned on inside groove body.
In preferred embodiments of the present invention, the inner wall of the groove body, the outer wall of electric heater are coated with corrosion-resistant material, institute
Thermocouple is stated as the thermocouple with corrosion-resistant protective case.
Beneficial effects of the present invention are as follows：Multifactor synergistic effect Dynamic Corrosion test device provided by the invention passes through drive
Dynamic system moves back and forth the corrosive liquid corroded in liquid bath by woven hose between each system, and drive system can control corrosion
The flowing velocity of liquid, in addition drive system itself do not carry electric signal, the test of three-electrode system will not be interfered, so as to
Ensure the accuracy of test data；In addition, carrying out temperature control to corrosive liquid by corroding liquid bath, three electricity are changed by vibrating device
The vibration frequency of working electrode in electrode systems, the present invention is by each dynamic factor, including temperature, water velocity, impact angle, vibration
Frequency is incorporated into the same space and carries out, can both carry out single factors Dynamic Corrosion experiment, can also be carried out at the same time multifactor
The corrosion experiment of effect has stronger practicability.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structure diagram of multifactor synergistic effect Dynamic Corrosion test device provided by the invention；
Fig. 2 is the structure diagram that the present invention provides three-electrode system；
Fig. 3 is the vertical view of three-electrode system provided by the invention；
Reference numeral：1- air compressors；2- diaphragm pumps；3-V type ball valves；4- three-electrode systems；5- vibrating motors；6- is defeated
Liquid pipe；7- corrodes liquid bath；41- three-way pipes；42- end caps；44- rubber stoppers；45- angle dials；46- erosions angle pointer；431-
Hard conducting wire；Reference electrodes of the 432- with salt bridge；433- auxiliary electrodes；51- mechanical oscillation arms.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the present embodiment provides it is multifactor synergistic effect Dynamic Corrosion test device, including with
In hold corrosive liquid and with temperature control function corrosion liquid bath 7, for drive corrosive liquid flowing drive system, three-electrode system
4th, for acquiring the electrochemical workstation of electrochemical signals and vibrating motor 5, corrode liquid bath 7, drive system and three electrodes
System 4 by woven hose 6 is joined end to end and forms closed circuit successively so that corrosive liquid can in whole device recycle stream
It is dynamic, ensure that corrosion chemistry is stablized.The mechanical oscillation arm of working electrode and vibrating motor 5 passes through hard in three-electrode system 4
Conducting wire 431 connects, and vibrating motor 5 gives the certain vibration frequency of working electrode in three-electrode system 4, carrys out simulation test with this
Scene.Three-electrode system 4 is connect with electrochemical workstation, for collecting corresponding experimental data.
Specifically, corrosion liquid bath 7 includes groove body and temperature regulating device, and temperature regulating device includes electrothermal tube and thermocouple, and electric heating
Device, thermocouple are respectively positioned on inside groove body.Heating wire and electrothermal tube can be selected in electric heater, and thermocouple can directly measure temperature, and handle
Temperature signal is converted into thermo-electromotive force signal, and the temperature of measured medium is converted by electric meter.Temperature regulating device can be set
Arbitrary temp in the range of 30-95 DEG C heats corrosive liquid by electric heater, reaches assigned temperature, and can be to corrosion
Liquid is kept the temperature, and temperature fluctuation range is ± 2 DEG C.
Further, the outer wall of the inner wall of groove body, the outer wall of electric heater and thermocouple is coated with corrosion-resistant material.In corruption
The inner wall for losing the stainless steel of liquid bath 7 is equipped with corrosion-resistant material, and corrosion-resistant material is teflon coating herein, that is, is improved
Corrode the corrosion resistance of liquid bath 7, and do not hinder the heating properties of corrosive liquid.In addition the thermocouple of temperature control also carries out corrosion-resistant place
Reason is the thermocouple with corrosion-resistant protective case.
It should be noted that the type of corrosive liquid is determined according to experiment demand, acid solution, aqueous slkali generally can be divided into
And inorganic salt solution, the pH of corrosive liquid is generally between 3-10.
Specifically, drive system includes air compressor 1, diaphragm pump 2, by defeated between air compressor 1 and diaphragm pump 2
Tracheae connects, and the inlet of diaphragm pump 2 is connected with inside corrosion liquid bath 7 by woven hose 6, the liquid outlet of diaphragm pump 2 and three electricity
Electrode systems 4 are connected by woven hose 6.When the gas that air compressor 1 exports enters in diaphragm pump 2, diaphragm fast vibration utilizes
Corrosive liquid from the inlet of diaphragm pump 2 is sucked, subsequent woven hose 6 is delivered to from the liquid outlet of diaphragm pump 2 by siphon principle.
Drive system acts on diaphragm pump 2 using air compressor 1, can be corroded herein by changing the power control of air compressor 1
Flowing velocity of the liquid in woven hose 6；In addition infusion is carried out by way of air pressure can prevent external electric signal to three electrodes
The test of system 4 interferes, so as to ensure the accuracy of test data.
Further, it is provided with control valve on the pipeline between diaphragm pump 2 and three-electrode system 4.Specifically, herein
Control valve can be ball valve, angle valve, needle-valve, butterfly valve or diaphragm valve, the adjusting flow that more than valve can be accurate.Above-mentioned driving
System conveys corrosive liquid by the way of diaphragm pump 2 is acted on using air compressor 1, since air pressure has unstability, because
This is by setting control valve to control liquid flow velocity and keeping flow speed stability, extraneous factor during reduction test experiments
It influences.Preferably, control valve is V-type ball valve 3.V-type ball valve 3 is not limited by installation direction, and the flow direction of medium can be arbitrary, just
In installation, V-type ball valve 3 is without friction during the work time in addition, can effectively reduce the accuracy of extraneous factor disturbed test experiment.
Further, three-electrode system 4 includes three-way pipe 41, working electrode, the reference electrode 432 with salt bridge and auxiliary
Electrode 433, three-way pipe 41 in inverted T shaped and its both ends port respectively with woven hose 6 by clamp connection, 41 top of three-way pipe
Port can be inserted into working electrode, the reference electrode 432 with salt bridge and auxiliary electrode 433, working electrode, the reference electricity with salt bridge
Pole 432 and auxiliary electrode 433 are connect with electrochemical workstation by conducting wire.Working electrode, the reference electrode 432 with salt bridge
And form two circuits between auxiliary electricity.Wherein, working electrode and the reference electrode 432 with salt bridge form measuring loop, real
Now control or measure the variation of polarization potential；Working electrode and the composition polarization of auxiliary electrode 433 circuit, realize the change of polarization current
Change and measure.In addition, three-way pipe 41 is translucent tube body, in order to which working electrode is placed into suitable position.
It should be noted that material needs root used by the reference electrode 432 with salt bridge and auxiliary electrode 433 herein
It is determined according to the ion in the material and corrosive liquid of working electrode.
Further, the passage port of 41 upper end of three-way pipe is equipped with end cap 42, is offered on end cap 42 and is respectively used to installation band
Three mounting holes of the reference electrode 432 of salt bridge, auxiliary electrode 433 and working electrode, working electrode connect with hard conducting wire 431
It connects, hard conducting wire 431 is equipped with angle dial 45, and the erosion angle pointer 46 with angle all scale cooperations is additionally provided on end cap 42.This
Outside, the reference electrode 432 with salt bridge and auxiliary electrode 433 are equipped with the rubber stopper 44 coordinated with mounting hole.Hard conducting wire 431 not with
Mounting hole contacts, and directly through end cap 42, is connect with mechanical oscillation arm.Specifically, the reference electrode 432 with salt bridge and auxiliary electricity
Pole 433 is closely connect by rubber stopper 44 with 41 upper end cover 42 of three-way pipe, 431 through end of hard conducting wire connected above working electrode
The mounting hole of lid 42 keeps being rigidly connected with the clip of mechanical oscillation arm.Angle dial 45 is fixedly connected with hard conducting wire 431, with
This realize hard conducting wire 431, angle dial 45 and working electrode be with entirety, hard conducting wire 431 pass through mounting hole not with end
Lid 42 connects, so as to fulfill the vibration of working electrode.
When needing to adjust impact angle, the clip of first release mechanism shaker arm, rotational angle dial 45 so that erosion
Angle pointer 46 is directed toward predetermined angular, and the test surfaces of working electrode can also rotate therewith regulation with the angle of corrosive liquid flow direction
The clip of angle, again clamping mechanical shaker arm completes the adjusting at erosion angle.
Further, the material of the liner of woven hose 6, three-way pipe 41 and V-type ball valve 3 selects corrosion-resistant material.This
The resistant material at place may be selected from polytetrafluoroethylene (PTFE) or carbon fiber, prevent corrosive liquid from causing to corrode to associated component, to improve dress
The service life put.
The operating procedure of multifactor synergistic effect Dynamic Corrosion test device：
(1) good certain density corrosive liquid is configured to be encased in corrosion liquid bath 7, sets target temperature, and begin to warm up；
(2) after corrosive liquid temperature reaches and stablizes, air compressor 1 is opened, corrosive liquid is circulated, and passes through V-type
Flow velocity is adjusted to target flow rate in ball valve 3；
(3) working electrode is put into the top of three-way pipe 41, ensures that working electrode is in the center of pipeline, adjusting angle
Dial 45 is spent, opens vibrating motor 5, and timing；
(4) reference electrode 432 and auxiliary electrode 433 with salt bridge are inserted into working electrode processing after a certain period of time, and by three
A electrode is connected to electrochemical workstation, starts to acquire electrochemical signals；
(5) by the analysis to electrochemical results, the corrosion condition of material is evaluated.
It is to simulate steamer after Tropical Ocean Area navigates by water 24 hours below, measures the corrosion condition of material near engine
Related experiment：
Pass through analysis, it may be determined that experiment condition：Material is 316L stainless steels (working electrode), molten in 3.5% sodium chloride
In liquid (corrosive liquid), temperature is 40 DEG C, 90 ° of impact angle (flow velocity direction is vertical with working electrode surface), and flow velocity is 8m/s (one
As navigate speed between 6-12m/s), the erosion time, vibration frequency was identical with engine speed for 24 hours.
Experimental procedure：First, 3.5% sodium chloride solution of configuration is encased in corrosion liquid bath 7, and set temperature is 40 DEG C,
Open heating unit.After corrosive liquid temperature reaches and stablizes, air compressor 1 is opened, corrosive liquid is circulated, and passes through ball
Valve regulation flow velocity is to 8m/s.Then, working electrode is put into, ensures that working electrode is in the center of pipeline, adjusts the angle and carve
Scale 45, it is 90 ° to make its impact angle, opens vibrating motor 5, and timing.After 24 hours, it is inserted into the reference electrode with salt bridge
432 and auxiliary electrode 433.Three electrodes are connected to electrochemical workstation, start to acquire electrochemical signals.By to electrochemistry
As a result the corrosion condition of material is evaluated in analysis.
In conclusion multifactor synergistic effect Dynamic Corrosion test device provided by the invention can wrap each dynamic factor
Temperature, water velocity, impact angle, vibration frequency are included, is incorporated into the same space and carries out, can both carry out single factors dynamic
Corrosion experiment can also be carried out at the same time the corrosion experiment of multifactor effect, being capable of more true simulation material Service Environment；Driving
System uses air compressor that diaphragm pump is driven to provide driving force for corrosive liquid, is providing higher corrosion flow velocity simultaneously, again
Can water velocity be subjected to precise quantification；In addition it uses air compressor that diaphragm pump is driven to provide driving force for corrosive liquid to avoid
It is directly interfered caused by three-electrode system using the electric signal entrained by Vidacare corp, ensures the accurate of electro-chemical test
Property.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, the equivalent structure variation that every specification and accompanying drawing content with the present invention is made, similarly
It should include within the scope of the present invention.
Claims (10)
1. multifactor synergistic effect Dynamic Corrosion test device, which is characterized in that hold corrosive liquid and with temperature control including being used for
The corrosion liquid bath (7) of effect, for drive corrosive liquid flow drive system, three-electrode system (4), for acquire electrochemistry letter
Number electrochemical workstation and vibrating motor (5), the corrosion liquid bath (7), drive system and three-electrode system (4) pass through
Woven hose (6) joins end to end and forms closed circuit successively, the three-electrode system (4) and the mechanical oscillation of vibrating motor (5)
Arm is connected by hard conducting wire (431), and the three-electrode system (4) connect with electrochemical workstation.
2. multifactor synergistic effect Dynamic Corrosion test device according to claim 1, which is characterized in that the driving system
System includes air compressor (1), diaphragm pump (2), is connected between the air compressor (1) and diaphragm pump (2) by appendix,
The inlet of the diaphragm pump (2) is connected with corrosion liquid bath (7) inside by woven hose (6), the liquid outlet of the diaphragm pump (2)
It is connected with three-electrode system (4) by woven hose (6).
3. multifactor synergistic effect Dynamic Corrosion test device according to claim 2, which is characterized in that the diaphragm pump
(2) control valve for controlling flow rate of liquid is provided on the pipeline between three-electrode system (4).
4. multifactor synergistic effect Dynamic Corrosion test device according to claim 3, which is characterized in that the control valve
Door is V-type ball valve (3).
5. multifactor synergistic effect Dynamic Corrosion test device according to claim 4, which is characterized in that three electrode
System (4) includes three-way pipe (41), working electrode, the reference electrode (432) with salt bridge and auxiliary electrode (433), and described three
Siphunculus (41) in inverted T shaped and its both ends ports respectively with woven hose (6) by clamp connection, three-way pipe (41) upper end
Passage port can be inserted into working electrode, the reference electrode (432) with salt bridge and auxiliary electrode (433), the working electrode, band salt
The reference electrode (432) and auxiliary electrode (433) of bridge are connect with electrochemical workstation.
6. multifactor synergistic effect Dynamic Corrosion test device according to claim 5, which is characterized in that the three-way pipe
(41) passage port of upper end is equipped with end cap (42), is offered on the end cap (42) and is respectively used to install the reference electrode with salt bridge
(432), three mounting holes of auxiliary electrode (433) and working electrode, the working electrode are connect with hard conducting wire (431), institute
It states hard conducting wire (431) and is equipped with angle dial (45), be additionally provided on the end cap (42) and angle dial (45) cooperation
Erosion angle pointer (46).
7. multifactor synergistic effect Dynamic Corrosion test device according to claim 6, which is characterized in that the band salt bridge
Reference electrode (432) and auxiliary electrode (433) equipped with the rubber stopper (44) coordinated with mounting hole, hard conducting wire (431) not with peace
Hole contact is filled, is connect directly through end cap (42) with mechanical oscillation arm.
8. multifactor synergistic effect Dynamic Corrosion test device according to claim 5, which is characterized in that the woven hose
(6), the material of the liner of three-way pipe (41) and V-type ball valve (3) selects corrosion-resistant material.
9. multifactor synergistic effect Dynamic Corrosion test device according to claim 1, which is characterized in that the corrosive liquid
Slot (7) includes groove body and temperature regulating device, and the temperature regulating device includes electrothermal tube and thermocouple, and the electric heater, thermocouple are equal
Inside groove body.
10. multifactor synergistic effect Dynamic Corrosion test device according to claim 9, which is characterized in that the groove body
Inner wall, electric heater outer wall be coated with corrosion-resistant material, the thermocouple is the thermocouple with corrosion-resistant protective case.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810265665.3A CN108195750A (en) | 2018-03-28 | 2018-03-28 | Multifactor synergistic effect Dynamic Corrosion test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810265665.3A CN108195750A (en) | 2018-03-28 | 2018-03-28 | Multifactor synergistic effect Dynamic Corrosion test device |
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| CN108195750A true CN108195750A (en) | 2018-06-22 |
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Cited By (4)
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| CN109507485A (en) * | 2018-12-21 | 2019-03-22 | 重庆大学 | A kind of liquid dielectric conductivity measurement system |
| CN111927752A (en) * | 2020-07-14 | 2020-11-13 | 西安交通大学 | Diaphragm compressor fault diagnosis instrument |
| CN114486712A (en) * | 2021-12-31 | 2022-05-13 | 武汉理工大学 | Device and method for simulating dynamic metal corrosion in deep geological disposal environment |
| CN115144283A (en) * | 2022-05-18 | 2022-10-04 | 天津大学 | Fretting corrosion experimental device for multiple motion modes |
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| CN105758786A (en) * | 2016-02-23 | 2016-07-13 | 北京大学 | Simulation device for metal corrosion test in dynamic environment |
| CN107101903A (en) * | 2017-06-02 | 2017-08-29 | 常州大学 | HTHP multiphase flow injecting type erosion-corrosion experiment device |
| CN207007674U (en) * | 2017-07-26 | 2018-02-13 | 北京化工大学 | A kind of Multifunctional corrosion experimental apparatus for testing |
| CN207923682U (en) * | 2018-03-28 | 2018-09-28 | 西南石油大学 | Multifactor synergistic effect Dynamic Corrosion test device |
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| CN103543077A (en) * | 2013-10-24 | 2014-01-29 | 北京科技大学 | Injection type erosion corrosion testing device |
| CN105758786A (en) * | 2016-02-23 | 2016-07-13 | 北京大学 | Simulation device for metal corrosion test in dynamic environment |
| CN107101903A (en) * | 2017-06-02 | 2017-08-29 | 常州大学 | HTHP multiphase flow injecting type erosion-corrosion experiment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109507485A (en) * | 2018-12-21 | 2019-03-22 | 重庆大学 | A kind of liquid dielectric conductivity measurement system |
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| CN111927752A (en) * | 2020-07-14 | 2020-11-13 | 西安交通大学 | Diaphragm compressor fault diagnosis instrument |
| CN111927752B (en) * | 2020-07-14 | 2021-11-23 | 西安交通大学 | Diaphragm compressor fault diagnosis instrument |
| CN114486712A (en) * | 2021-12-31 | 2022-05-13 | 武汉理工大学 | Device and method for simulating dynamic metal corrosion in deep geological disposal environment |
| CN114486712B (en) * | 2021-12-31 | 2023-12-15 | 武汉理工大学 | Device and method for simulating dynamic corrosion of metal in deep geological treatment environment |
| CN115144283A (en) * | 2022-05-18 | 2022-10-04 | 天津大学 | Fretting corrosion experimental device for multiple motion modes |
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