CN107884333B - It is a kind of for measuring the device of electrochemical parameter under metal cavitation corrosion state - Google Patents
It is a kind of for measuring the device of electrochemical parameter under metal cavitation corrosion state Download PDFInfo
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- CN107884333B CN107884333B CN201711077367.3A CN201711077367A CN107884333B CN 107884333 B CN107884333 B CN 107884333B CN 201711077367 A CN201711077367 A CN 201711077367A CN 107884333 B CN107884333 B CN 107884333B
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Abstract
The invention discloses a kind of for measuring the device of electrochemical parameter under metal cavitation corrosion state, including ultrasonic generator and electrochemical measurement system；Ultrasonic generator includes sequentially connected control flow, supersonic generator, energy converter, amplitude transformer；Electrochemical measurement system includes working electrode, reference electrode, auxiliary electrode, pedestal, copper rod, Luggin capillary, Tao Xin；On working electrode firm banking, reference electrode lower end is inserted into Luggin capillary；Reference electrode and auxiliary electrode are fixed on guide rail；Amplitude transformer and working electrode are connected in electrolytic cell, and screw rod is provided in amplitude transformer, is provided with circulation in electrolytic cell.The present invention has both cavitation corrosion and occurs and electrochemical measurement function; impact vacuole is generated using supersonic oscillations; and Conventional electrochemical measuring system component is transformed, it realizes the real-time acquisition of electrochemical parameter under cavitation corrosion state, has great importance to electrochemical techniques are applied to cavitation corrosion Protective strategy.
Description
Technical field
The invention belongs to the measuring techniques of material electrochemical parameter, and in particular to one kind is for measuring under metal cavitation corrosion state
The device of electrochemical parameter.
Background technique
Cavitation corrosion also referred to as cavitates, and refers to when liquid is in the saturated vapour pressure for being lower than it with the pressure of metal surface contact position
When, bubble will be formed near metal surface, or dissolve gas evolution in a liquid and form bubble.Since liquid flowing is drawn
When playing the variation of metal surface pressure in bubbles, so that void volume is decreased to crumble and fall, bubble generates huge impact in moment of crumbling and fall
Wave and microjet and cause metal surface to be destroyed, occur point, honeycomb, corrosion micropore, micro-crack phenomena such as, be then gradually expanded
At cave.Metal Surface During Cavitation Erosion mainly covers a variety of destructions such as mechanical damage, electrochemical corrosion, chemical attack and Thermodynamic effect
Mechanism, and mutually promote between cavitation corrosion and corrosion.
Cavitation corrosion environment is circumstance of flowing water, the flow faster of the medium electronics mass transfer mistake of material surface and neighbouring corrosive medium
Journey causes material surface electrochemical parameter to change, a large amount of vacuoles can be generated in Surface During Cavitation Erosion, bubble collapse moment causes metal
Surface electronic mass transport process accelerates, and corrosion is caused to aggravate, and its corrosion rate generated is much larger than media flow.Due to medium flow field
Dynamic and bubble collapse collective effect, the medium of surface of test piece is in extremely unstable state in Surface During Cavitation Erosion, so that adopting in real time
There is very big difficulty and limitation in the electrochemical parameter collected in Surface During Cavitation Erosion.
Chinese patent 201120152150.6 discloses a kind of rotary erosion configured with electrochemical testing device and empty
Synergy experimental rig is lost, using blade rotation forces solid-liquid-gas flow of multi-phase medium, simulates the flow passage parts such as propeller
Erosion and cavitation corrosion coupling process.Chinese patent 201620780097.7 discloses a kind of multi-phase flow erosion cavitation corrosion and corrosion is comprehensive
Experimental bench data collection and control device is closed, slurry high speed is ejected by surface of test piece by high pressure Pulp pump, erosion is formed and makees
With, while connecting electrochemical workstation acquisition electrochemical parameter information.However above-mentioned apparatus, not for medium in dynamic environment
It is unstable and be difficult to be rationally designed the problem of acquiring electrochemical parameter in real time, and ignore bubble collapse in Surface During Cavitation Erosion
Leading role, especially during high water head, big flow discharge structure aerial drainage.
Summary of the invention
Goal of the invention: in view of the problems of the existing technology, the present invention provides one kind for measuring metal cavitation corrosion state
The device of lower electrochemical parameter, the device generate impact vacuole using supersonic oscillations, and to Conventional electrochemical measuring system portion
Part is transformed, and realizes the real-time acquisition of electrochemical parameter under cavitation corrosion state, is applied to by electrochemical techniques (such as cathodic protection)
Have great importance in cavitation corrosion Protective strategy.
Technical solution: to achieve the goals above, such as present invention is a kind of to join for measuring electrochemistry under metal cavitation corrosion state
Several devices, including ultrasonic generator and electrochemical measurement system；The ultrasonic generator includes sequentially connected
Control flow, supersonic generator, energy converter, amplitude transformer；The electrochemical measurement system is three electrodes, two circuit measuring system packet
Include working electrode, reference electrode, auxiliary electrode, pedestal, copper rod, Luggin capillary, Tao Xin；The working electrode is solid by copper rod
Due on pedestal, the reference electrode lower end insertion has in the Luggin capillary of Tao Xin and bonds together；The reference electricity
Pole and auxiliary electrode are fixed on guide rail, are fixed on guide rail usually using bayonet apparatus, guide rail is welded on column；The ultrasound
The amplitude transformer of wave generating device and the working electrode of electrochemical measurement system are connected by electrolyte in electrolytic cell, amplitude transformer
Vibration generates a large amount of bubbles and acts on working electrode in the electrolyte, is provided with screw rod in amplitude transformer；It is provided in electrolytic cell
Circulation；Entire electrochemical measurement system, part amplitude transformer, electrolytic cell, guide rail and column are wrapped up by seal box, seal box
Top is provided with peep hole.
Preferably, the electrolytic cell is double glazing cylinder；Double glazing cylinder middle section is circulation；Institute
It states there are two prominent port outside circulation, wherein upper end is water outlet, and lower end is water inlet.Circulation can pass through
Hose is connect with thermostat, and to constant electrolytic cell internal operating temperature, controllable temperature is 0~70 DEG C in electrolytic cell.
The electrolytic cell bottom of pond is bonded with glass plate；Pedestal is fixed on glass plate.Submount material is polytetrafluoroethylene (PTFE), glass
Glass plate is that hard glass plate uses glass cement to be adhered to electrolysis bottom of pond portion, and pedestal and hard glass plate are respectively provided with centrosymmetric spiral shell
Pedestal is fixed on glass plate by wire hole by screw.
Further, pedestal is inverted " t " cylindrical body, and pedestal lower part is arranged four centrosymmetric screw holes, passes through screw
Pedestal is fixed on glass plate；T-shape circular hole is arranged in pedestal central upper portion, and it is highly 5mm that circular hole top aperture, which is 16mm,
For placing working electrode；Circular hole lower part aperture is 5mm, is highly 40mm.Working electrode is cylinder test specimen, and floor space is
2cm2, highly be 5mm；Working electrode bottom open screw hole, aperture 5mm, hole depth 2.5mm.
Further, be fixed on after pedestal by copper rod need to be outside working electrode protruding parts for the working electrode
One layer of silicon rubber is uniformly smeared, then screws on pedestal cap tube.Interted by circular hole lower part to working electrode the copper rod upper end
In reserved screw hole, lower end connecting wire is acted on to prevent working electrode in experiment from moving up and down.Working electrode is located at pedestal
Same plane, gap need to fill up silicon rubber between working electrode and pedestal.
Wherein, temperature sensor is provided in the electrolytic cell, electrolytic cell passes through temperature sensor control loop water system
Temperature can be realized the electrochemical measurement under different temperatures control.
The electrolytic cell is fixed on drum frame, and a rubber washer is arranged between electrolytic cell and drum frame.It can prevent electricity
Xie Chi is relatively moved in Surface During Cavitation Erosion.
The amplitude transformer and working electrode are adjusted between amplitude transformer and working electrode on same center line by screw rod
Distance, distance range are 0~2.5mm.The screw rod is hollow ring structure, and amplitude transformer and work are adjusted by rotary screw
The distance between electrode, and peep hole is being arranged by side, for calibrating whether amplitude transformer and working electrode are located in same
Heart position reduces the collimation error that the refraction during observing due to light generates.
Preferably, the amplitude transformer immersion position is wrapped up using polytetrafluoroethylene (PTFE), to reduce stray electrical current influence.
Preferably, distance is 2~5mm between the Luggin capillary and working electrode.
Further, the Luggin capillary belongs to one kind of salt bridge, acts on to eliminate liquid potential and solution resistance, keeps away
Exempt from the fluctuation that circumstance of flowing water causes reference electrode itself potential.
Further, liquid is saturation KCl solution in the Luggin capillary, and reference electrode impregnates effect in the solution
To avoid electrode from being polluted, it can be used for measuring metal cavitation corrosion electrochemical parameter in different medium.The reference electrode is straight tube
Calomel electrode, by the insertion of straight tube calomel electrode in the Luggin capillary of Tao Xin.
Further, the Tao Xin is ceramic, is placed in the end Luggin capillary Jian Zui.
It is described for measure the device of electrochemical parameter under metal cavitation corrosion state to further include connectivity port, the connectivity port
Inside is three pairs of apertures from top to bottom, is sequentially connected working electrode, reference electrode, auxiliary electrode, the connecting pin from bottom to up
Aperture is used for external data acquisition device on the outside of mouthful, will be used to measure electrochemical parameter under metal cavitation corrosion state by connectivity port
Device connected with data acquisition device.
Further, the ultrasonic generator power-adjustable is 0-2500W, vibration frequency 20kHz, amplitude transformer vibration
Width is 50 μm, and amplitude transformer vibration generates bubble, to simulate cavitation corrosion environment.Supersonic generator power adjustable is, it can be achieved that difference
Metal cavitation corrosion electrochemical measurement under intensity.
Working principle: when test, being polishing to 2000# for working electrode step by step, with acetone washed samples surface grease and miscellaneous
Object is put into baking oven and dries 1h at 105 DEG C, is placed in drier is cooled to room temperature later after cleaning.Then working electrode is consolidated
Due to pedestal, and one layer of silicon rubber is uniformly smeared around, after silicon rubber solidification, be directed at screw hole, pedestal is fixed on glass
In glass plate, while base cover is screwed, and qs Electrolyte solution is added in electrolytic cell.In the electrolyte to working electrode potential
After stabilization, electrolytic cell is placed on drum frame, electrolytic cell position is adjusted, makes amplitude transformer alignment work electrode, while rotating spiral shell
Bar calibrates amplitude transformer bottom end apart from 1.0~1.5mm of sample surfaces, while by peep hole, and then installation assists respectively
Electrode and reference electrode in reference electrode insertion Luggin capillary and are bonded on guide rail, mobile reference electrode, so that Shandong
Apart from 2~5mm of working electrode at the golden curved mouth of capillary, while auxiliary electrode is adjusted to suitable position.Connect working electrode, auxiliary
It can start electrochemical measurement behind the aperture that electrode and reference electrode are located on the inside of seal box to connectivity port.In measurement process,
First thermostat and circulation are connected with hose, setting experimental temperature is 25 DEG C, then checks whether connecting tube leaks
Water, electrolytic cell temperature whether constant temperature.After temperature is constant, by (side) aperture external data acquisition device outside connectivity port,
Supersonic generator and energy converter are finally opened, energy converter is used for cumulative, persistently generates ultrasonic wave, amplitude transformer is caused to shake.It is logical
Control flow setting basic parameter (temperature, power, working time etc.) is crossed, according to needed for experiment, acquisition Surface During Cavitation Erosion open circuit potential,
The electrochemical parameters such as polarization curve, EIS, DEIS can realize the electricity under different temperatures, varying strength and varying environment medium
Test chemical.
The utility model has the advantages that compared with prior art, the present invention has the advantage that
(1) device for measuring electrochemical parameter under metal cavitation corrosion state of the invention has both cavitation corrosion generation and electrochemistry
Function is measured, amplitude transformer vibration generates bubble, to simulate cavitation corrosion environment, realizes that the real-time of electrochemical parameter is adopted under cavitation corrosion state
Collection；
(2) Tao Xin-Luggin capillary structure is utilized, itself potential fluctuation of reference electrode caused by circumstance of flowing water is avoided, and
The alternative traditional agar fill process of Tao Xin, it is easy to operate；
(3) electrochemical measurement system connectivity port and electrode bayonet apparatus are designed, convenient for electrochemical workstation docking and
Electrode tool；
(4) top of the invention setting peep hole and screw rod are, it can be achieved that the centering of amplitude transformer and working electrode and spacing essence
Really control.
Detailed description of the invention
Fig. 1 is the present invention for measuring the apparatus structure schematic diagram of electrochemical parameter under metal cavitation corrosion state；
Fig. 2 is electrochemical measurement system structural schematic diagram of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be further described.
As depicted in figs. 1 and 2, a kind of for measuring the device of electrochemical parameter under metal cavitation corrosion state, including ultrasonic wave
Generating device and electrochemical measurement system.Ultrasonic generator includes sequentially connected control flow 1, supersonic generator 2, changes
It can device 3, amplitude transformer 4.Ultrasonic generator power-adjustable is 0-2500W, and vibration frequency 20kHz, amplitude transformer amplitude is 50 μ
M, the vibration of amplitude transformer 4 generate bubble, and to simulate cavitation corrosion environment, 3 power adjustable of supersonic generator is, it can be achieved that under varying strength
Metal cavitation corrosion electrochemical measurement；
Electrochemical measurement system is that three electrodes, two circuit measuring system includes working electrode 5, reference electrode 6, auxiliary electrode
7, pedestal 8, copper rod 9, Luggin capillary 10, Tao Xin 11；Working electrode 5 is by the way that on 9 firm banking of copper rod, reference electrode 6 is straight
Pipe calomel electrode, lower end insertion have in the Luggin capillary 10 of Tao Xin 11 and bond together, and Tao Xin 11 is ceramic, is set
In 10 end Jian Zui of Luggin capillary；Luggin capillary 10 belongs to one kind of salt bridge, acts on to eliminate liquid potential and solution electricity
Resistance, avoids circumstance of flowing water from causing the fluctuation of itself potential of reference electrode 6, and liquid is saturation KCl solution, ginseng in Luggin capillary 10
It is impregnated in the solution than electrode 6, acts on to avoid electrode from being polluted, can be used for measuring metal cavitation corrosion electrochemistry in different medium
Parameter.Distance is 2~5mm between Luggin capillary 10 and working electrode 5；Reference electrode 6 and auxiliary electrode 7 pass through bayonet apparatus
23 are fixed on guide rail 12, and auxiliary electrode 7 usually selects Pt electrode, and guide rail 12 is welded on column 13；Ultrasonic generator
Amplitude transformer 4 and the working electrode 5 of electrochemical measurement system held in the mouth by electrolyte (dotted line in Fig. 1) in electrolytic cell 14
It connects, amplitude transformer 4 is vibrated in the electrolyte to be generated a large amount of bubbles and act on working electrode 5, and screw rod 15 is provided in amplitude transformer 4；
Circulation 16 is provided in electrolytic cell 14；Entire electrochemical measurement system, part amplitude transformer 4, electrolytic cell 14,12 and of guide rail
Column 13 is wrapped up by seal box 17, is provided with peep hole 18 at the top of seal box.
Electrolytic cell 14 is double glazing cylinder；Double glazing cylinder middle section is circulation 16；Circulation
16 outsides are there are two prominent port, and wherein upper end is water outlet, and lower end is water inlet.The prominent port of two of circulation 16
It can be connect by hose with thermostat, to constant 14 internal operating temperature of electrolytic cell, controllable temperature is 0~70 in electrolytic cell 14
℃.14 bottom of pond of electrolytic cell is bonded with glass plate 19；Pedestal 8 is fixed on glass plate 19.8 material of pedestal is polytetrafluoroethylene (PTFE), glass
Glass plate 19 is that hard glass plate uses glass cement to be adhered to 14 bottom of electrolytic cell；Pedestal 8 is inverted " t " cylindrical body, and 8 lower part of pedestal is set
Four centrosymmetric screw holes are set, pedestal 8 is fixed on glass plate 19 by screw；T-shape is arranged in 8 central upper portion of pedestal
Circular hole, circular hole top aperture are 16mm, are highly 5mm, for placing working electrode 5；Circular hole lower part aperture is 5mm, is highly
40mm.Working electrode 5 is cylinder test specimen, floor space 2cm2, highly be 5mm；5 bottom open screw hole of working electrode, aperture
For 5mm, hole depth 2.5mm.Working electrode 5 is fixed on by copper rod 9 need to be outside 5 protruding parts of working electrode after pedestal 8
One layer of silicon rubber is uniformly smeared, then screws on the cap tube of pedestal 8.9 upper end of copper rod by 8 center hole lower part of pedestal intert to
Working electrode 5 is reserved in screw hole, lower end connecting wire, is acted on to prevent working electrode 5 in experiment from moving up and down.Working electrode
5 are generally aligned in the same plane with pedestal 8, and gap need to fill up silicon rubber between working electrode 5 and pedestal 8.Temperature is provided in electrolytic cell 14
Sensor 20 is spent, electrolytic cell 14 can be realized under different temperatures control by 20 control loop water system temperature of temperature sensor
Electrochemical measurement.Entire electrolytic cell 14 is fixed on drum frame 21, and a rubber is arranged between electrolytic cell 14 and drum frame 21
Washer.It can prevent electrolytic cell from relatively moving in Surface During Cavitation Erosion.
Amplitude transformer 4 and working electrode 5 on same center line, adjusted by screw rod 15 amplitude transformer 4 and working electrode 5 it
Between distance, distance range be 0~2.5mm.Screw rod 15 be hollow ring structure, adjusted by rotary screw 15 amplitude transformer 4 with
The distance between working electrode 5, and peep hole 18 is being arranged by side, for calibrate amplitude transformer 4 and working electrode 5 whether position
In same center, reduce the collimation error that the refraction during observing due to light generates.Amplitude transformer 4 is located at the leaching of electrolyte
Water position is wrapped up using polytetrafluoroethylene (PTFE), to reduce stray electrical current influence.
The present apparatus further includes connectivity port 22, and it is from top to bottom three pairs of apertures that connectivity port 22, which is located at 17 inside of seal box,
It is sequentially connected working electrode 5, reference electrode 6, auxiliary electrode 7 from bottom to up, connectivity port 22 is located at 17 outside aperture of seal box
For external data acquisition device, by connectivity port 22 will be used to measure under metal cavitation corrosion state the device of electrochemical parameter and
Data acquisition device connection.
When test, working electrode 5 is polishing to 2000# step by step, with acetone washed samples surface grease and sundries, after cleaning
It is put into baking oven and dries 1h at 105 DEG C, be placed in drier be cooled to room temperature later.Then working electrode 5 is fixed on pedestal
8, and one layer of silicon rubber is uniformly smeared around, after silicon rubber solidification, it is directed at screw hole, pedestal 8 is fixed on glass plate 19
On, while base cover is screwed, and qs Electrolyte solution is added in electrolytic cell.It is steady in the electrolyte to 5 current potential of working electrode
After fixed, electrolytic cell 14 is placed in 21 on drum frame, 14 position of electrolytic cell is adjusted, makes 4 alignment work electrode 5 of amplitude transformer, simultaneously
Screw rod 15 is rotated, makes 4 bottom end of amplitude transformer apart from 1.0~1.5mm of sample surfaces, while being calibrated by peep hole 18, then
Auxiliary electrode 7 and reference electrode 6 are installed respectively by bayonet unit 23 on guide rail, reference electrode 6 is inserted into Luggin capillary 10
In and be bonded, mobile reference electrode 6 so that apart from 2~5mm of working electrode at the curved mouth of Luggin capillary, while being adjusted auxiliary
Help electrode 7 to suitable position.Connection working electrode 5, auxiliary electrode 7 and reference electrode 6 to connectivity port 22 are located at seal box 17
It can start electrochemical measurement behind the aperture of inside.In measurement process, first thermostat has been connect with circulation 16 with hose
Come, setting experimental temperature be 25 DEG C, then check connecting tube whether leak, 14 temperature of electrolytic cell whether constant temperature.It is constant to temperature
Afterwards, 17 outside aperture external data acquisition device of seal box is located at by connectivity port 22, setting experimental temperature is 25 DEG C, then
Check connecting tube whether leak, 14 temperature of electrolytic cell whether constant temperature.After temperature is constant, by 22 outside aperture of connectivity port outside
Data acquisition device is connect, supersonic generator 2 and energy converter 3 are finally opened, energy converter 2 is used for cumulative, persistently generates ultrasonic wave,
Amplitude transformer 4 is caused to shake.Basic parameter (temperature, power, working time etc.) is set by control flow 1, according to needed for experiment, is adopted
Collect Surface During Cavitation Erosion open circuit potential, polarization curve, the electrochemical parameters such as EIS, DEIS, can realize different temperatures, varying strength with
And the electro-chemical test under varying environment medium.
Claims (7)
1. a kind of for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state, which is characterized in that sent out including ultrasonic wave
Generating apparatus and electrochemical measurement system；The ultrasonic generator includes sequentially connected control flow (1), supersonic generator
(2), energy converter (3), amplitude transformer (4)；The electrochemical measurement system is that three electrodes, two circuit measuring system includes working electrode
(5), reference electrode (6), auxiliary electrode (7), pedestal (8), copper rod (9), Luggin capillary (10), Tao Xin (11)；The work
Electrode (5) is by the way that on copper rod (9) firm banking (8), reference electrode (6) the lower end insertion has the Shandong gold capillary of Tao Xin (11)
In pipe (10) and bond together；The reference electrode (6) and auxiliary electrode (7) are fixed on guide rail (12) using bayonet apparatus
On, guide rail (12) is welded on column (13)；The work of amplitude transformer (4) and electrochemical measurement system of the ultrasonic generator
Make electrode (5) to be connected by electrolyte in electrolytic cell (14), screw rod (15) are provided in amplitude transformer (4)；Electrolytic cell (14)
Inside it is provided with circulation (16)；Entire electrochemical measurement system, part amplitude transformer (4), electrolytic cell (14), guide rail (12) and
Column (13) is wrapped up by seal box (17), is provided with peep hole (18) at the top of seal box, and amplitude transformer (4) immersion position uses
Polytetrafluoroethylene (PTFE) is wrapped up；Distance is 2~5mm between the Luggin capillary (10) and working electrode (5)；The amplitude transformer
(4) and working electrode (5) is on same center line, and the spacing of amplitude transformer (4) and working electrode (5) is adjusted by screw rod (15)
From distance range is 0~2.5mm.
2. according to claim 1 for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state, feature exists
In the electrolytic cell (14) is double glazing cylinder；Double glazing cylinder middle section is circulation (16)；The circulation
Water system (16) is external there are two prominent port, and wherein upper end is water outlet, and lower end is water inlet.
3. according to claim 1 for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state, feature exists
In electrolytic cell (14) bottom of pond is bonded with glass plate (19)；Pedestal (8) is fixed on glass plate (19).
4. according to claim 1 for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state, feature exists
In the electrolytic cell (14) is interior to be provided with temperature sensor (20), and electrolytic cell (14) passes through temperature sensor (20) control loop
Water system (16) temperature can be realized the electrochemical measurement under different temperatures control.
5. it is according to claim 1 to 4 for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state,
It is characterized in that, the electrolytic cell (14) is fixed on drum frame (21), is provided with rubber between electrolytic cell (14) and drum frame (21)
Rubber gasket.
6. according to claim 1 for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state, feature exists
In the Tao Xin (11) is ceramic, is placed in Luggin capillary (10) end Jian Zui.
7. according to claim 1 for measuring the device of electrochemical impedance spectroscopy EIS under metal cavitation corrosion state, feature exists
In described for measure the device of electrochemical parameter under metal cavitation corrosion state to further include connectivity port (22), the connectivity port
(22) being located on the inside of seal box (17) is from top to bottom three pairs of apertures, is sequentially connected working electrode (5), reference electrode from bottom to up
(6), auxiliary electrode (7), the connectivity port (22) are located at aperture on the outside of seal box (17) and lead to for external data acquisition device
Connectivity port (22) is crossed to connect the device for being used to measure electrochemical parameter under metal cavitation corrosion state with data acquisition device.
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| CN108645783A (en) * | 2018-08-20 | 2018-10-12 | 南京钢铁股份有限公司 | A kind of microcell electrochemical testing device and its test method |
| CN109374520B (en) * | 2018-11-14 | 2021-01-15 | 中车青岛四方机车车辆股份有限公司 | Electrochemical test system for atmospheric corrosion of metal under flowing thin liquid film |
| CN110026629A (en) * | 2019-04-23 | 2019-07-19 | 仲恺农业工程学院 | Electrolytic machining method for passivation metal surface porous microstructure |
| CN111879694B (en) * | 2019-05-01 | 2023-09-05 | 天津大学 | Intermittent ultrasonic-based cavitation erosion test method for simulation propeller blade |
| CN110361284B (en) * | 2019-08-02 | 2021-01-19 | 西安交通大学 | Liquid metal cavitation erosion experimental device |
| CN111610143B (en) * | 2020-06-17 | 2021-07-06 | 武汉理工大学 | Ship material cavitation erosion test real-time detection system and method based on ultrasonic detection technology |
| CN115487889B (en) * | 2022-07-05 | 2024-01-09 | 吉林大学 | Multifunctional experiment table integrating antifouling, anticorrosion and cavitation erosion resistance |
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| GB2277155B (en) * | 1993-04-06 | 1996-11-13 | Morgan Crucible Co | Method and apparatus for determining the corrosivity of water-containing liquids |
| CN2672646Y (en) * | 2004-01-22 | 2005-01-19 | 中国矿业大学 | Test device for cavitation property of test material |
| CN2919237Y (en) * | 2006-06-11 | 2007-07-04 | 中国海洋石油总公司 | Improved sea mud electrochemical corrosion measuring electrolytic cell |
| KR100828830B1 (en) * | 2006-08-24 | 2008-05-09 | 현대자동차주식회사 | Anticorrosive test method for chassis and steel sheet parts of vehicle |
| CN100485360C (en) * | 2007-03-09 | 2009-05-06 | 浙江理工大学 | Rotary single-phase flow wash-out testing device |
| CN100516824C (en) * | 2007-04-24 | 2009-07-22 | 浙江理工大学 | Electrochemistry test method used for rotary type single-phase flow erosion testing |
| CN202057564U (en) * | 2011-05-13 | 2011-11-30 | 重庆理工大学 | Washout and cavitation joint action testing machine under corrosion environment and multiphase flow action |
| CN203643309U (en) * | 2013-12-16 | 2014-06-11 | 河海大学 | Temperature control corrosion test device |
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| CN104914038B (en) * | 2015-07-07 | 2017-10-27 | 河南理工大学 | A kind of rotary erosion abrasion electrochemical corrosion test device |
| CN206330874U (en) * | 2016-12-19 | 2017-07-14 | 天津大学 | A kind of electrochemical testing device of acoustic emission detection material corrosion performance |
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