CN108593536A - A kind of dynamic electric Chemical cover experimental rig - Google Patents
A kind of dynamic electric Chemical cover experimental rig Download PDFInfo
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- CN108593536A CN108593536A CN201810363835.1A CN201810363835A CN108593536A CN 108593536 A CN108593536 A CN 108593536A CN 201810363835 A CN201810363835 A CN 201810363835A CN 108593536 A CN108593536 A CN 108593536A
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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Abstract
The invention discloses a kind of dynamic electric Chemical cover test devices, and electrochemical workstation and fretting wear function are integrated in one, and can carry out corrosion and wear reciprocation original position and dynamic test.Friction wear testing machine is rotary, using " pin disk " CONTACT WITH FRICTION mode and three-electrode electrochemical test system, it wherein plays test specimen as working electrode, is connect with electrochemical workstation by mercury slip ring, the electrochemical parameter under spin friction state is tested into Mobile state.The device can be measured simple wear weight loss amount, corrosion weight loss amount and corrosive wear amount of interaction, and the rate of corrosion under simple corrosion and corrosive wear collective effect is measured respectively, realize the real-time monitoring of the electrochemical parameter and tribological property under different operating modes (load, rotating speed, medium), it can accurately realize the synchronism detection and on-spot study of material corrosion abrasion, the dynamic studies for further realizing corrosive wear the mechanism of interaction effect, have a wide range of applications.
Description
Technical field
The invention belongs to metallic material corrosion abrasion and electro-chemical test research field, a kind of novel rub is in particular, provided
Scouring damage-electro-chemical test and data acquisition device.Tribological property and electrochemical parameter are surveyed suitable for different solutions
Examination, can not only complete etching extent, check for wear, can also complete to corrode knots modification wear to material and wear to corrosion
The measurement of knots modification is realized and carries out electrochemical in-situ control and monitoring to corrosive wear system.
Background technology
Corrosive wear typically refers to solid under other solid mechanical rubbing action, while having again under corrosive medium participation,
The surface breakdown phenomenon of generation is mechanics factor, chemical factor and the interactive result of electrochemical factors.Corrosive wear interacts
Effect spillage of material caused by the corrosive wear of material has extremely important facilitation, it is therefore necessary to study clear two
The interactive mechanism of person could have breakthrough in terms of material selection and preventive means.Briny environment is the highest ring of corrosivity
Border, common crucial friction pair material show different degrees of abrasion under briny environment, are also embodied by the burn into electricity of material
Coupling behavior under chemical attack and corrosion and abrasive action.The corrosion and abrasion during corrosive wear are found by analysis
Often there is larger difference with individual corrosion or abrasion, be not simple corrosion is added with wear extent, but by two
More serious material loss caused by the reciprocation of person.It is because material is under the conditions of corrosive wear to trace it to its cause, and medium is rotten
Erosion effect makes material surface penalty, increases the mechanical wear of material, and mechanical wear can be such that corrosion rate greatly increases,
Therefore influence of the reciprocation of corrosive wear to Hydraulic Elements is more serious, greatly reduces its reliability.
In recent years, as ocean is further developed, it is desirable that the crucial friction pair of marine settings can continue under bad working environments
It works with security and stability, more stringent requirements are proposed for this performance to crucial friction pair material.Again because corrosive wear phenomenon is wide
It is general that there are in marine settings, be therefore metal material in briny environment one of the main reason for making water hydraulic component failure damage
Corrosive wear be an important field of research.For verify this kind of corrosive wear and its reciprocation control mechanism, influence because
Element, matter of utmost importance seek to develop a set of multifunction friction wear-electrochemistry comprehensive test device, carry out sea water hydraulic key and rub
Wipe auxiliary material experimental study.Traditional test device largely can not achieve the friction and wear behavior and electrochemistry to material
Can synchronism detection, also can not the case where more accurately a variety of materials friction is with corrosion in simulating ocean environment, however obtain material
Electrochemistry Information in material process of friction and wear, such as corrosion rate, the corrosive wear characteristic research to material, while to effective
Material loss caused by ground reduces the corrosive wear of material plays an important role.
The corrosive wear of metal material and its reciprocation are furtherd investigate, need to detect friction process electricity in real time
Chemical parameters situation of change, therefore need corresponding test device.There is Chinese patent " a kind of to corrode and wear synchro measure dress before this
Set " (CN87214788), it discloses the devices of a kind of research metallic material corrosion and abrasion synchro measure, will fixed metal
The Electrode of sample makes hollow rotary shaft, can measure the rate of wear and corrosion rate simultaneously, but due to not having design to add
Loading system can not investigate influence of the load to corroding and wearing.Separately there is a kind of corrosion product polishing machine to be surveyed with corrosion electrochemistry
(CN200910076139.3) is set in trial assembly, due to lacking loading system, can not also investigate influence of the load to corroding and wearing.
Also a kind of corrosion and the abrasion dynamic measuring device of reciprocation (CN200620111395.3), this device can not achieve to material
The synchronism output of grinding abrasion performance signals, for example, friction coefficient characterization, so that the synchronous research of corrosion wear characteristic is restricted.
Invention content
The purpose of the present invention is to provide one kind to be integrated simultaneously to material friction wear properties and electrochemical parameter
The new device of test, the device is easy to operate, using " pin-disk " CONTACT WITH FRICTION mode, to metal material electrochemistry and can rub
Scouring damage synchronizes test, and the wear signals such as friction coefficient of output material in real time, realizes corrosive wear system electrochemistry
In-situ control and monitoring, thus the knots modification to abrasion and abrasion pair to the simple wear extent of material, simple etching extent, corrosion
The knots modification of corrosion compares and analyzes, and can further study corrosion electrochemistry factor, mechanics factor respectively to synergistic effect
Influence degree, determine the relative size that each factor acts on played in synergistic effect, contribute to go deep into understanding corrosive wear machine
Reason, the material corrosion explored under briny environment wear reciprocation.
To achieve the above object, the technical solution adopted by the present invention is a kind of dynamic electric Chemical cover experimental rig,
The device includes water fender 1, cover board 2, upper test specimen 3, mercury slip ring 5, lower test specimen 11, mounting seat 12 and pond 15, rotatably
Friction wear testing machine；Lower test specimen 11 is working electrode；Be provided with water inlet 16 and water outlet 8 in 15 both sides of pond, pond 15 with
Mounting seat 12 is by Z-type rotatory sealing 10 and VDType water seal 13 is combined dynamic sealing；Lower test specimen 11 is disc format, in
Heart screw and pin are fixed in mounting seat 12, and lower test specimen 11 rotates with mounting seat 12, and upper test specimen 3 is fixed
In upper test specimen mounting base 4；Mercury slip ring mounting base 6 is interference fit with mercury slip ring 5, and the lower end of mercury slip ring 5 is by leading
The lower test specimen 11 of line connection, auxiliary electrode 9 are fixed on by auxiliary holder in pond 15 with reference electrode 14, auxiliary electrode 9, ginseng
It is contacted with artificial seawater 7 in pond 15 than electrode 14, auxiliary holder is installed on the pedestal of rotary friction wear testing machine.
The i.e. lower test specimen 11 of working electrode is fixed with the mounting seat in pond 15 by screw, and auxiliary electrode 9 is with reference electrode 14 by solid
It is fixed due to the auxiliary holder on rotary friction wear testing machine pedestal.Auxiliary electrode, working electrode, reference electrode pass through
Different conductor is connect with electrochemical workstation, constitutes three-electrode electrochemical test system.The top in pond 15 is equipped with water fender 1,
Cover board 2 is mounted on the top of water fender 1.
Pond 15, water fender 1 and mounting seat 12 are all made of engineering plastics and are made, and cover board 2 is made of organic glass, keep off
The side bottom of water plate 1 is provided with multiple circular holes, and pond 15 is cylindrical type, and special type slot is provided at bottom circular aperture.
Mercury slip ring 5 is connected by conducting wire with lower test specimen 11, and 5 upper end connecting terminal of mercury slip ring connects electrification by conducting wire
Learn work station；5 lower end of mercury slip ring is round end, and upper end is fixing end, realizes the electrochemical signals transmission under rotation status.
Mercury slip ring mounting base 6 is sealed with lower test specimen 11 using O-ring；5 lower part connecting wire of mercury slip ring is spring-like,
Ensure the reliable contacts of 5 lower part of mercury slip ring and lower test specimen 11.
Pass through V between pond 15 and mounting seat 12DType water seal 13 realize combination dynamic sealing with Z-type rotatory sealing 10.
Artificial seawater 7 in pond 15 can be substituted for other solution, carry out the corrosive wear experiment under different medium.
Compared with prior art, the invention has the advantages that：
The present invention uses rotary CONTACT WITH FRICTION mode, meets most of seawater equipment operation actual condition, can be more acurrate
Evaluation of corrosion environment under corrosive wear situation.High speed rotation has been well solved using mercury slip ring and spring connecting wire
In the case of signal transmission issues between working electrode and electrochemical workstation, it is ensured that the biography of electrochemical signals under rotation status
Defeated stability.The leakage in liquid pool between solution and rotary shaft is avoided by Double layer rotating sealing structure.Test material uses
Engineering plastics can effectively prevent the galvanic corrosion between material, avoid the interference to electrochemical signals, it is ensured that corrosion rate is surveyed
Fixed accuracy.The invention can carry out tribology parameters synchronism detection by fretting wear machine, change loaded load and rotating speed, point
Abrasion condition under different loads, different rotating speeds is analysed, and records friction coefficient in real time.Corrosivity sea water solution is added in liquid pool, it can
The amount of interaction for testing corrosive wear, can measure the corrosion rate under different situations, and carry out using electro-chemical test system
Many-sided multifactor corrosive wear comparative analysis.Simple wear weight loss amount, simple etching extent can be obtained by experiment in the device
And corrode the actuating quantity to abrasion and wear the actuating quantity to corrosion, and then can determine each factor in synergistic effect by analyzing
The relative size of role.
Description of the drawings
Fig. 1 is corrosive wear experimental provision structural schematic diagram of the present invention；
Fig. 2 is corrosive wear experimental provision block water plate structure schematic diagram.
Wherein 1- water fenders, 2- cover boards, the upper test specimens of 3-, the upper test specimen mounting bases of 4-, 5- mercury slip rings, the installation of 6- mercury slip rings
Seat, 7- artificial seawaters, 8- water outlets, 9- auxiliary electrodes, 10-Z type rotatory sealings, test specimen (working electrode) under 11-, 12- installations
Pedestal, 13-VDType water seal, 14- reference electrodes, the ponds 15-, 16- water inlets.
Specific implementation mode
Build it is test bed, prepare tests exemplar, be that 0.1mg balances are weighed with precision, carry out friction-wear test.This
A kind of invention dynamic electric Chemical cover experimental rig is used for rotating condition using " pin-disk " CONTACT WITH FRICTION mode
The corrosive wear experimental study of lower material is, it can be achieved that real-time testing is worn in the electrochemical corrosion under dynamic condition.The test device
Including pond 15, rotary friction wear testing machine, three-electrode electrochemical test system etc.；Pond 15 is with mounting seat 12 by Z
Type rotatory sealing 10 and VDType water seal 13 is combined rotatory sealing, and 15 both sides of pond are provided with water inlet 16 and water outlet 8, are used for
Pond drainage in experiment.Lower test specimen (working electrode) 11 is fixed on by central screw and pin in mounting seat 12, with peace
Dress pedestal 12 rotates together, and upper test specimen 3 is fixed, and is loaded by fretting wear machine in experiment, realizes different operating modes
The real-time monitoring of tribological property under (load, rotating speed, medium).Mercury slip ring connects electrochemical workstation 15 and lower test specimen
(working electrode) 11 realizes that the electrochemical signals under rotation status stablize transmission, mercury slip ring mounting base 6 and 5 mistake of mercury slip ring
It is full of cooperation, mercury slip ring mounting base is sealed with lower test specimen (working electrode) 11 by O-ring seal, and solution leakage is prevented,
Auxiliary electrode 9 is fixed on by auxiliary holder in pond 15 with reference electrode 14, and artificial seawater 7, three electricity are added in pond 15
Pole connects electrochemical workstation by different conductor, constitutes electrochemical test system, carries out simple corrosion and corrosive wear situation
Under parameter fitting and corrosion rate test.
It can be facilitated using the dynamic checkout unit, be reliably achieved the wear weight loss amount simple to material, corrosion weight loss
Amount and corrosive wear amount of interaction measurement and comparative analysis, and to the corrosion under simple corrosion and corrosive wear collective effect
Rate is measured respectively, realizes that the electrochemical parameter and tribological property under different operating modes (load, rotating speed, medium) are supervised in real time
It surveys, with the acquisition of test specimen electrochemical signals to be measured in test process and the control of Current Voltage, can accurately realize material corrosion
The synchronism detection and on-spot study of abrasion, further realize the dynamic studies of corrosive wear the mechanism of interaction effect.
Claims (6)
1. a kind of dynamic electric Chemical cover experimental rig, it is characterised in that：The device includes water fender (1), cover board (2),
Upper test specimen (3), mercury slip ring (5), lower test specimen (11), mounting seat (12) and pond (15), rotary friction wear testing machine；
Lower test specimen (11) is working electrode；It is provided with water inlet (16) and water outlet (8), pond (15) and installation bottom in pond (15) both sides
Seat (12) is by Z-type rotatory sealing (10) and VDType water seal (13) is combined dynamic sealing；Lower test specimen (11) is disc format, is passed through
Central screw and pin are fixed in mounting seat (12), and lower test specimen (11) rotates with mounting seat (12), on
Test specimen (3) is fixed in test specimen mounting base (4)；Mercury slip ring mounting base (6) is interference fit, mercury with mercury slip ring (5)
The lower end of slip ring (5) connects lower test specimen (11) by conducting wire, and auxiliary electrode (9) is solid by auxiliary holder with reference electrode (14)
Due in pond (15), auxiliary electrode (9), reference electrode (14) are contacted with pond (15) interior artificial seawater (7), auxiliary holder
It is installed on the pedestal of rotary friction wear testing machine；Working electrode is lower test specimen (11) and the mounting seat in pond (15)
It is fixed by screw, auxiliary electrode (9) is auxiliary on rotary friction wear testing machine pedestal by being fixed on reference electrode (14)
Clamper is helped to fix；Auxiliary electrode, working electrode, reference electrode are connect by different conductor with electrochemical workstation, constitute three
Electrode electro Chemical tests system；The top in pond (15) is equipped with water fender (1), and cover board (2) is mounted on the top of water fender (1).
2. a kind of dynamic electric Chemical cover experimental rig according to claim 1, it is characterised in that：Pond (15),
Water fender (1) and mounting seat (12) are all made of engineering plastics and are made, and cover board (2) is made of organic glass, water fender (1)
Side bottom is provided with multiple circular holes, and pond (15) are cylindrical type, special type slot is provided at bottom circular aperture.
3. a kind of dynamic electric Chemical cover experimental rig according to claim 1, it is characterised in that：Mercury slip ring
(5) it is connected with lower test specimen (11) by conducting wire, mercury slip ring (5) upper end connecting terminal connects electrochemical workstation by conducting wire；
Mercury slip ring (5) lower end is round end, and upper end is fixing end, realizes the electrochemical signals transmission under rotation status.
4. a kind of dynamic electric Chemical cover experimental rig according to claim 1, it is characterised in that：Mercury slip ring is pacified
Seat (6) is filled to seal using O-ring with lower test specimen (11)；Mercury slip ring (5) lower part connecting wire is spring-like, it is ensured that mercury slip ring
(5) reliable contacts of lower part and lower test specimen (11).
5. a kind of dynamic electric Chemical cover experimental rig according to claim 1, it is characterised in that：Pond (15) and
Dynamic sealing is realize combination by VD types water seal (13) and Z-type rotatory sealing (10) between mounting seat (12).
6. a kind of dynamic electric Chemical cover experimental rig according to claim 1, it is characterised in that：In pond (15)
Artificial seawater (7) can be substituted for other solution, carry out the corrosive wear experiment under different medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363835.1A CN108593536A (en) | 2018-04-22 | 2018-04-22 | A kind of dynamic electric Chemical cover experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363835.1A CN108593536A (en) | 2018-04-22 | 2018-04-22 | A kind of dynamic electric Chemical cover experimental rig |
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| Publication Number | Publication Date |
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| CN108593536A true CN108593536A (en) | 2018-09-28 |
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| CN201810363835.1A Pending CN108593536A (en) | 2018-04-22 | 2018-04-22 | A kind of dynamic electric Chemical cover experimental rig |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006818A (en) * | 2019-02-20 | 2019-07-12 | 常州大学 | A kind of pin-disc type corrosive wear experimental rig |
| CN110160953A (en) * | 2019-06-12 | 2019-08-23 | 贵州大学 | A kind of modularization friction wear testing machine |
| CN111198144A (en) * | 2018-11-16 | 2020-05-26 | 中国科学院宁波材料技术与工程研究所 | Method and system for collecting and analyzing information under electrochemical-mechanical-microbial action |
| CN111474111A (en) * | 2020-04-27 | 2020-07-31 | 中国科学院宁波材料技术与工程研究所 | Specific friction condition electrochemical corrosion information multichannel data acquisition system and method |
| CN111537389A (en) * | 2020-06-11 | 2020-08-14 | 陈如请 | Ocean engineering ship corrosion prevention measuring system |
| CN112414877A (en) * | 2020-10-21 | 2021-02-26 | 华东交通大学 | Current-carrying frictional wear test system capable of controlling temperature and humidity and control method thereof |
| CN113125149A (en) * | 2021-04-16 | 2021-07-16 | 中国航空综合技术研究所 | Method for evaluating service life of aviation movement hinge mechanism under corrosion condition and test device thereof |
| CN113130013A (en) * | 2019-12-30 | 2021-07-16 | 中国科学院宁波材料技术与工程研究所 | Method and system for processing high-throughput electrochemical abrasion data of calculated material |
| CN113358513A (en) * | 2021-07-08 | 2021-09-07 | 济南大学 | Electrochemical dynamic testing device applied to friction and wear testing machine |
| CN114112891A (en) * | 2021-12-07 | 2022-03-01 | 北京科技大学 | High-temperature high-pressure water environment rotating electrode structure material testing machine |
| WO2023179084A1 (en) * | 2022-11-28 | 2023-09-28 | 河南科技大学 | Pin-on-disc frictive-corrosive multi-environment coupling test apparatus, and method |
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| CN106546505A (en) * | 2016-10-31 | 2017-03-29 | 华中科技大学 | A kind of full sea is deep to simulate fretting corrosion experiment test device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198144A (en) * | 2018-11-16 | 2020-05-26 | 中国科学院宁波材料技术与工程研究所 | Method and system for collecting and analyzing information under electrochemical-mechanical-microbial action |
| CN110006818A (en) * | 2019-02-20 | 2019-07-12 | 常州大学 | A kind of pin-disc type corrosive wear experimental rig |
| CN110160953A (en) * | 2019-06-12 | 2019-08-23 | 贵州大学 | A kind of modularization friction wear testing machine |
| CN113130013A (en) * | 2019-12-30 | 2021-07-16 | 中国科学院宁波材料技术与工程研究所 | Method and system for processing high-throughput electrochemical abrasion data of calculated material |
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| CN112414877B (en) * | 2020-10-21 | 2023-08-11 | 华东交通大学 | Current-carrying frictional wear test system capable of controlling temperature and humidity and control method thereof |
| CN112414877A (en) * | 2020-10-21 | 2021-02-26 | 华东交通大学 | Current-carrying frictional wear test system capable of controlling temperature and humidity and control method thereof |
| CN113125149A (en) * | 2021-04-16 | 2021-07-16 | 中国航空综合技术研究所 | Method for evaluating service life of aviation movement hinge mechanism under corrosion condition and test device thereof |
| CN113358513A (en) * | 2021-07-08 | 2021-09-07 | 济南大学 | Electrochemical dynamic testing device applied to friction and wear testing machine |
| CN114112891A (en) * | 2021-12-07 | 2022-03-01 | 北京科技大学 | High-temperature high-pressure water environment rotating electrode structure material testing machine |
| CN114112891B (en) * | 2021-12-07 | 2024-01-12 | 北京科技大学 | High-temperature high-pressure water environment rotary electrode structural material testing machine |
| WO2023179084A1 (en) * | 2022-11-28 | 2023-09-28 | 河南科技大学 | Pin-on-disc frictive-corrosive multi-environment coupling test apparatus, and method |
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Application publication date: 20180928 |
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