CN104568729B - Corrosion electrolytic cell device suitable for considering stress gradients affect - Google Patents
Corrosion electrolytic cell device suitable for considering stress gradients affect Download PDFInfo
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- CN104568729B CN104568729B CN201410829885.6A CN201410829885A CN104568729B CN 104568729 B CN104568729 B CN 104568729B CN 201410829885 A CN201410829885 A CN 201410829885A CN 104568729 B CN104568729 B CN 104568729B
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Abstract
The invention discloses a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect, it is characterised in that including：The cylinder I and cylinder II of series connection, the dividing plate between two cylinder, end plate and both ends stress loading device positioned at residing series connection cylinder both ends；It is provided with described dividing plate to electrode, working electrode can be all provided with the end plate of both ends, the top of the cylinder is provided with the input port I of setting reference electrode；Pass through the change to existing cell construction, meet the real-time monitoring to electrolyte characteristic, it is easy to implement requirement of the experiment to electrolyte temperature, dissolved oxygen content, flow velocity, pH value, the invention can be with the work area of guarantee test sample, tradition is eliminated by sealing sample to ensure the preparation of work area, it is easy to apply stress loading to sample simultaneously, reduce the requirement to loading device, and cell construction both ends all allow to apply load to sample, go for considering the corrosion cell research of stress gradients affect.Rational guarantee test condition requirement, it is easy to accomplish the Accuracy and high efficiency of measurement data.
Description
Technical field
The present invention relates to a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect.It is related to Patent classificating number
C25 is electrolysed or electrophoresis process；Its device therefor C25B produces compound or nonmetallic electrolysis process or electrophoresis process；Used in it
Equipment C25B9/00 electrolytic cells or its sub-assembly；Electrolytic cell component；The sub-assembly of electrolytic cell component, such as electrode-film combination
Part C25B9/06 includes the electrolytic cell of the non-moving electrode of dimensionally stable；The sub-assembly of its component.
Background technology
When carrying out three-electrode electro Chemical corrosion measurement experiment currently with existing electrolytic cell, the experimental rig and method of use
It is main as shown in Figure 1：The shortcomings that equipment, is mainly reflected in：Assembling is difficult, and experimental rig assembling is inconvenient；Test specimen and electrolytic cell
Junction is easy to leak, causes electrochemical measurement error occur；The non-measured position of test specimen must be sealed with epoxy resin, can not be weighed
It is multiple to utilize, material for test excess waste；There is no good aeration condition, carry out cannot be guaranteed electrolyte during corrosion test for a long time
The stabilization of interior dissolved oxygen content；It is difficult in the case where not disturbing electrolyte solution, ensures the constant of solution temperature；It is difficult to adjust
The flow velocity of electrolyte solution；It is difficult to periodic measurement electrolyte characteristic, tends not to meet to electrolyte PH value, temperature, dissolved oxygen
The requirement of constant and periodic detection；When studying the corrosion test under stress influence, it is necessary to when being loaded to sample, it is limited to
The design of electrolytic cell, loading direction unification；In addition, being measured for the galvanic corrosion under stress gradients affect, currently mainly adopt
In two ways, a kind of is the sample (working electrode is identical with the material of auxiliary electrode) for being directed to two phase same materials, and work is electric
Pole is in stress state and auxiliary electrode is to be not loaded with state, as shown in figure 1, the Galvanic Current of measurement between the two is tested to reach
Purpose, and under reality, because structure stress position and component composition form are different, overall structure is often in uneven
Stress state, seldom position can be in unstress state, thus by traditional loading and be not loaded with mode, and measurement is electric between the two
Even electric current is difficult to reach corrosion condition of the model engineering structure under stress gradient；Another kind is by loading variable cross-section sample
The both ends of (working electrode) make its diverse location be in different stress levels, then are placed in traditional cell container, such as Fig. 2
Shown, its subject matter is that stress gradient battery causes sample internal electron that Autonomic Migration Framework occurs, by being difficult to reality outside sample
The measurement of existing Galvanic Current.
The content of the invention
The it is proposed of the invention for being directed to problem above, and a kind of corrosion for being applied to consider stress gradients affect developed is electrolysed
Pool device, it is characterised in that including：The cylinder I and cylinder II of series connection, the dividing plate between two cylinder, positioned at residing string
Join the end plate at cylinder both ends and multiple connecting rods, the effect of described cylinder I, cylinder II, dividing plate and two end plates in the connecting rod
It is lower to form the closed space of a connection；
It is provided with above described dividing plate to electrode；The middle part of described end plate has through hole, and the working electrode of tabular is two
Hold the described through hole of the outside sealing of end plate；Cylinder I and cylinder II connect the cylinder to be formed top be provided with place reference electrode
Port I；During work, electrolyte solution is injected into the series connection cylinder of connection, starts the simulated seawater corrosion test of three electrodes
Galvanic couple measurement.
Outer framework with fixed working electrode, the outer framework include the housing of a rectangle, two relative edge's frames of housing
On be respectively equipped with the leading screw of axis on the same line, the front end of the leading screw is provided with the clamping plate for clamping the working electrode；
During work, the both ends of working electrode are clamped by clamping plate respectively, by adjusting two described leading screws on the working electrode (s
Apply load, when both ends apply different stress can easily model engineering structure stress gradient.
Described end plate II side wall has multiple fixing holes；One fixture is connected by described fixing hole with end plate II；
During work, fixture clamping tabular working electrode end plate II outer side compression and seal the through hole.
Described fixture includes：The fixed mount fixed by described fixing hole and end plate II, coordinates with fixed mount screw thread
Leading screw, the fixture block positioned at leading screw front end, described working electrode is fixed on end plate II by described fixture block, seals described
Through hole.
Also reside in the multiple detection means input ports being arranged on above cylinder I and cylinder II.
Also reside in the interface that described cylinder I and cylinder II is additionally provided with input and discharge outer circulation water.
The interface for also residing in the input outer circulation water is located at the cylinder I and cylinder II middle part.
Also reside in the inner circulating tube mouth for being arranged on the input of cylinder I and cylinder II tops and discharge electrolyte solution.
A kind of by adopting the above-described technical solution, corrosion electricity for being applied to consider stress gradients affect provided by the invention
Pool device is solved, is had the following advantages that：The present invention is reasonable in design, by the change to existing cell construction, meets to electrolysis
The real-time monitoring of liquid characteristic, requirement of the experiment to electrolyte temperature, dissolved oxygen content, flow velocity, pH value is easy to implement, the invention is also
Tradition can be eliminated by sealing sample to ensure the preparation of work area, simultaneously with the work area of guarantee test sample
It is easy to apply stress loading to sample, reduces the requirement to loading device, and cell construction both ends all allow to sample
Apply load, suitable for considering that the corrosion cell of stress gradients affect is studied.Rational guarantee test condition requirement, it is easy to accomplish
The Accuracy and high efficiency of measurement data.
Brief description of the drawings
, below will be to embodiment or existing for clearer explanation embodiments of the invention or the technical scheme of prior art
There is the required accompanying drawing used in technology description to do one and simply introduce, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic diagram of prior art seawater corrosion test device
Fig. 2 is the seawater corrosion test schematic diagram that prior art considers stress gradients affect
Fig. 3 is the schematic diagram of experimental rig of the present invention
Fig. 4 is the front view of experimental rig of the present invention
Fig. 5 is the front view that experimental rig of the present invention carries load frame
Fig. 6 is the top view that experimental rig of the present invention carries load frame
Fig. 7 is the side view that experimental provision of the present invention carries load frame
Fig. 8 is the schematic diagram of end plate of the present invention
Fig. 9 is the side view of end plate of the present invention
Figure 10 is schematic diagram of the present invention to electrode
Embodiment
To make the purpose, technical scheme and advantage of embodiments of the invention clearer, with reference to the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly completely described：
As shown in Fig. 3-Figure 10：A kind of corrosion electrolytic cell device for being applied to consider stress gradients affect, mainly includes：String
The cylinder I17 and cylinder II18 of connection, at work, described two cylinders are horizontal.Dividing plate is provided between two described cylinders
19, end plate 3 and multiple connecting rods 7 are respectively equipped with the cylinder both ends of the series connection, at cylinder I17 and cylinder II18 edge
Provided with O-ring seal, under assembled state, described cylinder I17, cylinder II18, dividing plate 19 and two end plates 3 are squeezed the connecting rod 7
Pressure effect is lower to form the closed space of a connection.
The described top of dividing plate 19 is provided with socket of the insertion to electrode 15.The middle part of described end plate 3 has the institute of through hole 31
Packing ring 311 is provided with around the through hole 31 stated, ensures to keep sealing with working electrode in the assembled state, while ensure work
Make the measurement area of electrode.The working electrode of tabular is in the outside sealing of end plate 3 described the cylinder I17 of through hole 31. and cylinder
II18 connect the cylinder to be formed top be provided with place reference electrode port I16, formed three-electrode system.During work, Xiang Lian
Injection electrolyte solution in logical series connection cylinder, you can the simulated seawater for starting to carry out three electrodes under conditions of various settings is rotten
The galvanic couple measurement of corrosion test.
Preferred embodiment, it is described electrode to be included under working condition positioned at the platinum gauze of series connection inner barrel
152, the top of platinum gauze 152 is provided with the plastics loop bar 153 with platinum filament guide hole 154, is set in the side of the plastics loop bar 153
There is the metallic rod 151 being connected with platinum filament guide hole 154.
Further, the etching characteristic in order to test sample (working electrode 5) under conditions of with load, make
For preferred embodiment, the outer framework of fixed working electrode 5 is additionally provided with, is respectively equipped with the both ends of the cylinder of series connection outside one
Framework.Preferably, the outer framework includes the housing 40 of a rectangle, two relative edge's frames (housings of two vertical directions) of housing
Middle part is respectively equipped with a leading screw 41, and the axis of leading screw 41 is on the same line, and the front end of leading screw 41 is fixedly connected with described in clamping
The fixture block 42 of working electrode 5.
The both ends of working electrode 5 are machined with bolt hole, and fixture block 42 is provided with the bolt coordinated with bolt hole, such tabular
The both ends of working electrode 5 are clamped by fixture block 42 respectively, are adjusted by two leading screws 41 for adjusting described and are applied on working electrode 5
Load, corrosion condition of the observation working electrode 5 when with load.
As preferred embodiment, the side wall of end plate 3 has fixing hole 12, it is preferred that can be screwed hole, in end plate
Fixing hole, the convenient working electrode 5 that different directions are set are designed with 3 four side walls.Fixture 1 passes through described fixing hole 12
It is connected with end plate 3.
Further, in order to ensure that fixture can apply enough pressure to ensure working electrode energy to working electrode
The through hole 31 of enough effective Closed end plates 3.As preferred embodiment, described fixture 1 includes：Pass through described fixing hole
12 fixed mounts 2 fixed with end plate 3, fixed mount 2 include the plate of two fixed edges of two fixed edges and connection, fixed mount 2 respectively with
Side connection relative end plate II3 two, the leading screw 21 coordinated with the screw thread of fixed mount 2, position are provided with the middle part of the plate of fixed mount 2
Working electrode is pressed on end plate by the insulation fixture block 22 in the front end of leading screw 21, described insulation fixture block 22 in the presence of leading screw 21
On II3.
As preferred embodiment, also there are the multiple detection means input ports for being arranged on the top of cylinder 1, at least wrap
Include：For the input port 8 of aeration, for detecting the port 5 and port 10 of the characteristics such as electrolyte PH value, temperature, dissolved oxygen content.
In order to ensure the constant of experimental provision temperature, as preferred embodiment, described cylinder 1 be additionally provided with input and
The interface of outer circulation water is discharged, including is arranged on the interface 6 as water inlet in the middle part of cylinder I17 and is arranged on cylinder I17
Portion as the interface 13 of delivery port and the interface 11 as water inlet that is arranged in the middle part of cylinder II18 and top is set
As the interface 13 of delivery port, water inlet is arranged on to the middle part of cylinder 1, the insulating efficiency of recirculated water can be increased.
Accordingly, also reside in being arranged on the input of the top of cylinder 1 and discharging the mouth of pipe of electrolyte solution, as shown in Figure 3
Including the mouth of pipe 9 and the mouth of pipe 14.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
- A kind of 1. corrosion electrolytic cell device for being applied to consider stress gradients affect, it is characterised in that including：The cylinder I of series connection (17) and cylinder II (18), the dividing plate (19) between two cylinder, the end plate (3) positioned at the cylinder both ends of the series connection And multiple connecting rods (7), described cylinder I (17), cylinder II (18), dividing plate (19) and two end plates (3) are in the connecting rod (7) Effect is lower to form the closed space of a connection；It is provided with above described dividing plate (19) to electrode (15)；The middle part of described end plate (3) has through hole (31), the work of tabular Make electrode in the described through hole of the outside sealing of end plate (3)；Cylinder I and cylinder II connect the cylinder to be formed top be provided with place The port I (16) of reference electrode；During work, electrolyte solution is injected into the series connection cylinder of connection, starts the simulation of three electrodes The galvanic couple measurement of seawater corrosion test；Electrolytic cell device both ends all have the outer framework of fixed working electrode (5), and the outer framework includes the housing of a rectangle (40) leading screw (41) of axis on the same line, the front end of the leading screw (41), are respectively equipped with two relative edge's frames of housing Provided with the fixture block (42) for clamping the working electrode (5)；During work, the both ends of two working electrodes (5) are clamped by fixture block (42) respectively, by adjusting described two leading screws (41) in work Make to apply load on electrode (5).
- 2. the corrosion electrolytic cell device according to claim 1 for being applied to consider stress gradients affect, is further characterized in that：The side wall of described end plate (3) has multiple fixing holes (12)；Fixture (1) passes through described fixing hole (12) and end plate (3) connect；During work, fixture (1) clamping tabular working electrode end plate (3) outer side compression and seal the through hole.
- 3. a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect according to claim 2, its feature is also It is：Described fixture (1) includes：By the fixed mount (2) that described fixing hole (12) and end plate (3) are fixed, with fixed mount (2) leading screw (21) that screw thread coordinates, the fixture block (22) positioned at leading screw (21) front end, described fixture block (22) are electric by described work Pole is fixed on end plate (3), seals described through hole (31).
- 4. a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect according to claim 1, its feature is also It is with the multiple detection means input ports being arranged on above cylinder I (17) and cylinder II (18).
- 5. a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect according to claim 1, its feature is also It is that described cylinder I (17) and cylinder II (18) is additionally provided with the interface of input and discharge outer circulation water.
- 6. a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect according to claim 4, its feature is also The interface for being to input outer circulation water is located at the cylinder I (17) and cylinder II (18) middle part.
- 7. a kind of corrosion electrolytic cell device for being applied to consider stress gradients affect according to claim 1, its feature is also It is with the inner circulating tube mouth for being arranged on the input of cylinder I (17) and cylinder II (18) tops and discharge electrolyte solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829885.6A CN104568729B (en) | 2014-12-26 | 2014-12-26 | Corrosion electrolytic cell device suitable for considering stress gradients affect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829885.6A CN104568729B (en) | 2014-12-26 | 2014-12-26 | Corrosion electrolytic cell device suitable for considering stress gradients affect |
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| Publication Number | Publication Date |
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| CN104568729A CN104568729A (en) | 2015-04-29 |
| CN104568729B true CN104568729B (en) | 2017-12-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105203449B (en) * | 2015-10-13 | 2018-01-02 | 东南大学 | The corrosion pond that steel bar corrosion is tested in a kind of reinforcing steel |
| CN111398154B (en) * | 2020-03-31 | 2021-11-30 | 大连理工大学 | Multi-channel loading and corrosion electrolytic cell device considering tensile and compressive stress influence |
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| US6015484A (en) * | 1997-11-26 | 2000-01-18 | Gamry Instruments, Inc. | Detection of pitting corrosion |
| CN2741039Y (en) * | 2004-09-28 | 2005-11-16 | 中国海洋石油总公司 | Electrolytic pool of electrochemical corrosive measurement of sea mud |
| CN101377461A (en) * | 2007-08-28 | 2009-03-04 | 宝山钢铁股份有限公司 | Apparatus and method for measuring welding tube corrosion under stress condition |
| CN101608995A (en) * | 2008-06-20 | 2009-12-23 | 宝山钢铁股份有限公司 | The measuring method of galvanic corrosion and sample thereof under the high-stress state of welded tube weld seam |
| CN102735604A (en) * | 2012-06-13 | 2012-10-17 | 上海大学 | Electrolytic cell for corrosion electrochemical measurement |
| CN203396742U (en) * | 2013-08-06 | 2014-01-15 | 东北大学 | Electrolytic cell device with three-electrode system for electrochemical testing |
| CN204514779U (en) * | 2014-12-26 | 2015-07-29 | 大连理工大学 | Be applicable to the corrosion electrolytic cell device considering stress gradients affect |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10185858A (en) * | 1996-12-26 | 1998-07-14 | Hokuto Denko Kk | Column-type cell for electrolytic synthesis |
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2014
- 2014-12-26 CN CN201410829885.6A patent/CN104568729B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6015484A (en) * | 1997-11-26 | 2000-01-18 | Gamry Instruments, Inc. | Detection of pitting corrosion |
| CN2741039Y (en) * | 2004-09-28 | 2005-11-16 | 中国海洋石油总公司 | Electrolytic pool of electrochemical corrosive measurement of sea mud |
| CN101377461A (en) * | 2007-08-28 | 2009-03-04 | 宝山钢铁股份有限公司 | Apparatus and method for measuring welding tube corrosion under stress condition |
| CN101608995A (en) * | 2008-06-20 | 2009-12-23 | 宝山钢铁股份有限公司 | The measuring method of galvanic corrosion and sample thereof under the high-stress state of welded tube weld seam |
| CN102735604A (en) * | 2012-06-13 | 2012-10-17 | 上海大学 | Electrolytic cell for corrosion electrochemical measurement |
| CN203396742U (en) * | 2013-08-06 | 2014-01-15 | 东北大学 | Electrolytic cell device with three-electrode system for electrochemical testing |
| CN204514779U (en) * | 2014-12-26 | 2015-07-29 | 大连理工大学 | Be applicable to the corrosion electrolytic cell device considering stress gradients affect |
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