CN208568662U - The non-destructive testing device of integral type on-line checking galvanic corrosion sensibility - Google Patents
The non-destructive testing device of integral type on-line checking galvanic corrosion sensibility Download PDFInfo
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- CN208568662U CN208568662U CN201820403110.6U CN201820403110U CN208568662U CN 208568662 U CN208568662 U CN 208568662U CN 201820403110 U CN201820403110 U CN 201820403110U CN 208568662 U CN208568662 U CN 208568662U
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Abstract
The utility model discloses the non-destructive testing devices and method of a kind of integral type on-line checking galvanic corrosion sensibility, wherein non-destructive testing device includes detection box, two fluid sample rooms and a solid sample room are separated by partition in the detection box, the clamping plate for being driven clamp system driving is equipped in the solid sample room, the top of the detection box is equipped with conductive membrane, the top of the conductive membrane is equipped with the multi-channel electrode fitted closely with it and pops one's head in, reference electrode is equipped in electrolyte solution in one of electrolyte case, the utility model is suitable for sizes sample, effective position can be carried out to sample, improve the reliability of test result.
Description
Technical field
The utility model relates to non-destructive testing skill technical fields, sensitive more particularly to integral type on-line checking galvanic corrosion
The non-destructive testing device of property.
Background technique
Galvanic corrosion (also referred to as contact corrosion), refers to and contacts in conducting medium when two or more different metal
Afterwards, corrosion galvanic cell is constituted since respective electrode potential is different.The metal of corrosion potential calibration is cathode, and it is anti-that cathode occurs
It answers, its corrosion process is caused to be suppressed；And the more negative metal of current potential is anode, and anode reaction occurs, leads to its corrosion process
Accelerate, especially will form the galvanic couple pair of the big cathode of primary anode, corrosion aggravation when annode area is smaller.Foundation in navigation mark at present
Galvanic Current size judges galvanic corrosion sensitivity.
Being popped one's head in using multi-channel electrode and carrying out galvanic corrosion sensitivity Detection is a kind of effective ways, in the prior art, greatly
Online non-destructive testing is carried out all by way of self assembly, without relevant fixed equipment, and in test process, needs multichannel electric
Pole probe is fitted closely with sample surfaces, and multi-channel electrode probe cannot be relatively moved with sample room to be tested, this is that have
Imitate the premise of test.
Utility model content
The purpose of this utility model is to be directed to technological deficiency existing in the prior art, and provide integral type on-line checking electricity
The non-destructive testing device of thermogalvanic corrision sensibility is suitable for sizes sample, can carry out effective position to sample, improve test knot
The reliability of fruit.
It is for technical solution used by realization the purpose of this utility model:
The non-destructive testing device of the integral type on-line checking galvanic corrosion sensibility of the utility model, including detection box, institute
It states in detection box and two fluid sample rooms and a solid sample room is separated by partition, set on the side wall of the solid sample room
There is the strip gab penetrated for conducting wire；
The fluid sample room is symmetricly set on the left and right sides of the solid sample room, is all provided in the fluid sample room
Electrolyte case is set, the top of the electrolyte case is equipped with locating flange, and the outer of the locating flange protrudes from institute
The box wall for the detection box stated or the partition, convenient for taking out electrolyte case out of fluid sample room, through being stored in it
Interior electrolyte solution pours, and cleans to it；
The clamping plate for being driven clamp system driving is equipped in the solid sample room, the clamping plate is for fixed by weldering to be measured
Joint samples are connect, the driving clamp system includes the inner rod being fixed on partition and is slidably connected with the inner rod outer
Sleeve, the outer sleeve is interior to be equipped with a cavity being inserted into for inner rod, is equipped with holddown spring in the cavity；Drive clamp system
Setting, can be used for fixing weld joint samples to be measured, under the action of holddown spring, the present apparatus is applicable to different in width
Weld joint samples to be measured, convenient for detecting the progress of operation；
The top of the detection box is equipped with conductive membrane, and the middle part of the conductive membrane and the weld joint samples to be measured are pasted
It closes, the left end of the conductive membrane is immersed in the electrolyte solution of the electrolyte case in left side, and the right end of the conductive membrane immerses
In the electrolyte solution of the electrolyte case on right side；
The top of the conductive membrane is equipped with the multi-channel electrode fitted closely with it and pops one's head in, one of electrolyte case
Reference electrode is equipped in interior electrolyte solution, the reference electrode is placed in electrolyte solution by salt bridge, the multi-pass
The bottom surface of welding point weld metal zone in road electrode probe, the reference electrode and weld joint samples to be measured passes through respectively leads
Line is connected with the signal acquisition terminal of electro-chemical measuring apparatus, calibration reference electrode end and ground terminal, the electrochemical measurement dress
The signal output end set is connected with computer.
In the above-mentioned technical solutions, the side of the detection box is equipped with bracket, and the middle part of the bracket is equipped with to be rotated with it
First supporting rod of connection, the top of the bracket are equipped with the second supporting rod being rotatablely connected with it, first supporting rod
End is equipped with the first fixing clamp for fixing reference electrode, and the end of second supporting rod is equipped with for fixing multichannel electricity
Second fixing clamp of pole probe.
In the above-mentioned technical solutions, the reference electrode is saturated calomel electrode.
In the above-mentioned technical solutions, the conductive membrane is sponge, timber, filter paper or bamboo.
In the above-mentioned technical solutions, the metal electrode bar material of the multi-channel electrode probe is the carbon steel of Q235 model,
Wherein multi-channel electrode probe is equidistantly fixed in phenolic resin by the carbon steel rod of 9-64 root Q235 model, at 3-8 row 3-8
Column.
In the above-mentioned technical solutions, the electrolyte solution is 3.5%NaCl solution.
In the above-mentioned technical solutions, the diameter of the metal electrode bar is 1.0mm-1.2mm.
The another aspect of the utility model, the non-destructive testing side of online prison detection metal welding joints galvanic corrosion sensibility
Method is realized by step:
Step 1: according to welded seam area surface shape and the suitable electrode probe beam of material selection and probe beam curved surface is adjusted,
Welded seam area is smaller to occupy intermediate, and surface is parallel with base material, and weld joint samples to be measured are fixed between two clamping plates.
Step 2: suitable reference electrode and salt bridge being chosen according to electrolyte solution, electrolyte solution solution is placed to electricity
It solves in matter case 4, and electrolyte case is put into fluid sample room；
Step 3: being fixed using will pop one's head in beam and reference electrode of appropriate device, wherein electrode probe beam passes through ion conductive membrane
It is contacted with test sample, reference electrode is placed in electrolyte solution by salt bridge, and ion conductive membrane is infiltrated in electrolyte solution
In, reference electrode is placed in 3.5%NaCl electrolyte solution by salt bridge, finally will probe beam and reference using fixed device
Electrode is fixed.
Step 4: current signal being acquired using the device with zero resistance circuit, wherein electrode probe beam and electrochemical measurement
The connection of device working end, test sample are connect with electrochemical testing device ground terminal, reference electrode and electro-chemical test equipment instrument
The connection of device reference electrode end.
Step 5: opsition dependent and detected materials form galvanic couple pair to each probe respectively, sample according to determining the characteristics of material
Moment after sampling, changes a probe, until all probe samplings terminate.
Step 6: the current potential and current signal of acquisition being analyzed and processed, current potential and current distributing figure are exported, determines examination
The anode and cathode region on sample surface simultaneously judges that the galvanic corrosion sensibility at each position of welding point is strong and weak.
In the above-mentioned technical solutions, electrolyte solution 3.5%NaCl, reference electrode select saturated calomel electrode to add salt
Bridge.
In the above-mentioned technical solutions, electric current and potential data after acquiring in the step 6 use the self-editing difference of Matlab
Program carries out processing drawing.
Compared with prior art, the utility model has the beneficial effects that
1, the setting of clamp system is driven, so that the present apparatus can fix the weld joint samples to be measured of different in width, is applicable in
It is in extensive range, and can treat test sample carry out effective position, prevent during the test multi-channel electrode probe with it is to be measured
Sample of having a try relatively moves, and improves the reliability of test result.
2, the electrolyte solution of liquid and the sample to be tested of fixation are fixed respectively, and contain the electrolyte of electrolyte solution
Case is convenient to use convenient for cleaning convenient for picking and placing.
3, multi-channel electrode probe and reference electrode can position respectively, without hand-held, so that entire detection process more saves
Shi Shengli.
4, compared with the method for traditional non-destructive testing welding point position galvanic corrosion sensibility, the method can be more
The galvanic corrosion situation of metal welding joints portion faces is observed visual and clearly, with easy to operate, measurement accuracy is high, quasi-
True property is high, high production efficiency, the advantage easy-to-use, real-time is high, and it is rotten to be particularly suitable for scene metal welding joints position galvanic couple
Lose the online prison detection of sensibility.
Detailed description of the invention
Fig. 1 show the side view schematic diagram of the embodiments of the present invention 1.
Fig. 2 show the sectional view schematic diagram of the utility model embodiment 1.
Fig. 3 show the structural schematic diagram of the utility model embodiment 2.
Wherein: 1- detects box, 2- fluid sample room, 3- solid sample room, 4- electrolyte case, 5- locating flange, 6-
Inner rod, 7- outer sleeve, 8- holddown spring, 9- clamping plate, 10- weld joint samples to be measured, 11- welding point weld metal zone, 12-
Conductive membrane, 13- electrode probe, 14- electro-chemical measuring apparatus, 15- computer, 16- bracket, the first supporting rod of 17-, 18- first
Fixing clamp, 19- reference electrode, 20- strip gab, the second supporting rod of 21-, the second fixing clamp of 22-.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place
The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
Embodiment 1
The non-destructive testing device of the integral type on-line checking galvanic corrosion sensibility of the utility model, including detection box 1, institute
It states in detection box 1 and two fluid sample rooms 2 and a solid sample room 3, the side wall of the solid sample room 3 is separated by partition
It is equipped with the strip gab 20 penetrated for conducting wire；
The fluid sample room 2 is symmetricly set on the left and right sides of the solid sample room 3, in the fluid sample room 2
It is respectively provided with electrolyte case 4, the top of the electrolyte case 4 is equipped with locating flange 5, the outer of the locating flange 5
The box wall for detecting box 1 or the partition are protruded from, convenient for electrolyte case 4 is taken out out of fluid sample room 2,
Electrolyte solution through being stored in it pours, and cleans to it；
It is equipped with the clamping plate 9 for being driven clamp system driving in the solid sample room 3, the clamping plate 9 will be to for fixation
Weld joint samples 10 are surveyed, the driving clamp system includes the inner rod 6 being fixed on partition and slides with the inner rod 6
The outer sleeve 7 of connection, the outer sleeve 7 is interior to be equipped with a cavity being inserted into for inner rod 6, is equipped with holddown spring 8 in the cavity；
The setting for driving clamp system, can be used for fixing weld joint samples 10 to be measured, under the action of holddown spring 8, the present apparatus can
Suitable for the weld joint samples to be measured 10 of different in width, convenient for detecting the progress of operation；
The top of the detection box 1 is equipped with conductive membrane 12, and the middle part of the conductive membrane 12 and the welding point to be measured try
Sample 10 is bonded, and the left end of the conductive membrane 12 is immersed in the electrolyte solution of the electrolyte case 4 in left side, the conductive membrane
12 right end immerses in the electrolyte solution of the electrolyte case 4 on right side；
The top of the conductive membrane 12 is equipped with the multi-channel electrode probe 13 fitted closely with it, and one of electrolyte is deposited
It puts and is equipped with reference electrode 19 in the electrolyte solution in box 4, the reference electrode 19 is placed on electrolyte solution by salt bridge
In, the welding point weld seam in the multi-channel electrode probe 13, the reference electrode 19 and weld joint samples to be measured 10
The bottom surface in area 11 passes through signal acquisition terminal, calibration reference electrode end and the ground terminal phase of conducting wire and electro-chemical measuring apparatus 14 respectively
Connection, the signal output end of the electro-chemical measuring apparatus 14 are connected with computer 15.
In the present embodiment, the conductive membrane uses filter paper, and the reference electrode uses saturated calomel electrode, the electrolysis
Storage has 3.5% NaCl solution in matter case 4, and the metal electrode bar material of multi-channel electrode probe is Q235 model
Carbon steel, wherein multi-channel electrode probe is equidistantly fixed in phenolic resin by the carbon steel rod of 16 Q235 models, is arranged at 4 rows 4,
0.8mm is arranged in phenolic resin at equal intervals, and the diameter of the carbon steel rod of Q235 model is 1.0mm.The letter of electro-chemical measuring apparatus
Number collection terminal includes 16 signal acquisition contacts, the top of multi-channel electrode probe and the signal acquisition terminal of electro-chemical measuring apparatus
Specific connection type are as follows: multi-channel electrode probe 16 metal electrode bars by 16 conducting wires respectively with electrochemical measurement fill
16 signal acquisition contacts of the signal acquisition terminal set connect.Electro-chemical measuring apparatus is controlled by the single-chip microcontroller being embedded, root
According to the position of 16 metal electrode bars, the successively current signal of 16 signal acquisition points of acquisition order.
The lossless detection method of online prison detection metal welding joints galvanic corrosion sensibility is realized by step:
Step 1: according to welded seam area surface shape and the suitable electrode probe beam of material selection and adjustment probe beam curved surface.
Test sample is the welding point of Q235 steel in the present embodiment, and welded seam area is smaller to occupy intermediate, and surface is parallel with base material.Will
Weld joint samples 10 to be measured are fixed between two clamping plates 9, and the surface area of entire welding point part is 8*8mm, probe
Material uses Q235 carbon steel, the arrangement of 4*4 parallel array, probe diameter 1.0mm, spacing 0.8mm.
Step 2: suitable reference electrode and salt bridge are chosen according to electrolyte solution.3.5% NaCl solution is placed to
In electrolyte case 4, and electrolyte case 4 is put into fluid sample room 2, electrolyte solution 3.5%NaCl, because
This reference electrode selects saturated calomel electrode to add salt bridge.
Step 3: being fixed using will pop one's head in beam and reference electrode of appropriate device, wherein electrode probe beam passes through ion conductive membrane
It is contacted with test sample, reference electrode is placed in electrolyte solution by salt bridge, and ion conductive membrane is infiltrated in electrolyte solution
In.Using the corrosion potential and electric current on device as shown in Figure 1 measurement welding point surface in the present embodiment.Ion conductive membrane both ends
In electrolyte solution, electrode probe beam is placed in above welding point and is contacted by ion conductive membrane with test sample for infiltration,
Reference electrode is placed in 3.5%NaCl electrolyte solution by salt bridge, finally will probe beam and reference electricity using fixed device
It is extremely fixed.
Step 4: current signal being acquired using the device with zero resistance circuit, wherein electrode probe beam and electrochemical measurement
The connection of device working end, test sample are connect with electrochemical testing device ground terminal, and reference electrode (adding salt bridge) and electrochemistry are surveyed
Try the connection of equipment and instrument reference electrode end.
Step 5: opsition dependent and detected materials form galvanic couple pair to each probe respectively, sample according to determining the characteristics of material
Moment after sampling, changes a probe, until all probe samplings terminate.
Step 6: the current potential and current signal of acquisition being analyzed and processed, current potential and current distributing figure are exported, determines examination
The anode and cathode region on sample surface simultaneously judges that the galvanic corrosion sensibility at each position of welding point is strong and weak.After being acquired in the present embodiment
Electric current and potential data use the self-editing difference program of Matlab to carry out processing drawing.
Embodiment 2
The present embodiment improves on the basis of embodiment 1, as shown in Fig. 2, the side of the detection box 1 is equipped with bracket
16, the middle part of the bracket 16 is equipped with the first supporting rod 17 being rotatablely connected with it, and the top of the bracket 16 is equipped with and its turn
Second supporting rod 21 of dynamic connection, the end of first supporting rod 17 are equipped with the first fixing clamp for fixing reference electrode 19
18, the end of second supporting rod 21 is equipped with the second fixing clamp 22 for fixing multi-channel electrode probe 13.
The 13, reference electrode 19 that can so pop one's head in multi-channel electrode carries out effective position and is not necessarily to convenient for the detection of data
Hand hold transducer or electrode, the first supporting rod 17, the second supporting rod 21 with the bracket 16 rotation connection are solid convenient for rotation first
The direction of clamp 18, the second fixing clamp 22 is gone to the side of detection box 1 when being laid with conductive membrane 12, is connected when laying
After film, the surface of detection box 1 is gone to, and multi-channel electrode probe 13 and reference electrode 19 are fixed, it is convenient fixed
The placement of test material is not interfered while position.
In the present embodiment, the conductive membrane uses filter paper, and the reference electrode uses saturated calomel electrode, the electrolysis
Storage has 3.5% NaCl solution in matter case 4, and the metal electrode bar material of multi-channel electrode probe is Q235 model
Carbon steel, wherein multi-channel electrode probe is equidistantly fixed in phenolic resin by the carbon steel rod of 36 Q235 models, is arranged at 6 rows 6,
0.9mm is arranged in phenolic resin at equal intervals, and the diameter of the carbon steel rod of Q235 model is 1.1mm.The letter of electro-chemical measuring apparatus
Number collection terminal includes 36 signal acquisition contacts, the top of multi-channel electrode probe and the signal acquisition terminal of electro-chemical measuring apparatus
Specific connection type are as follows: multi-channel electrode probe 36 metal electrode bars by 36 conducting wires respectively with electrochemical measurement fill
36 signal acquisition contacts of the signal acquisition terminal set connect.Electro-chemical measuring apparatus is controlled by the single-chip microcontroller being embedded, root
According to the position of 36 metal electrode bars, the successively current signal of 36 signal acquisition points of acquisition order.
The lossless detection method of online prison detection metal welding joints galvanic corrosion sensibility is realized by step:
Step 1: according to welded seam area surface shape and the suitable electrode probe beam of material selection and adjustment probe beam curved surface.
Test sample is the welding point of Q235 steel in the present embodiment, and welded seam area is smaller to occupy intermediate, and surface is parallel with base material.Will
Weld joint samples 10 to be measured are fixed between two clamping plates 9, and the surface area of entire welding point part is 10*10mm, are visited
Needle material uses Q235 carbon steel, the arrangement of 6*6 parallel array, probe diameter 1.1mm, spacing 0.9mm.
Step 2: suitable reference electrode and salt bridge are chosen according to electrolyte solution.3.5% NaCl solution is placed to
In electrolyte case 4, and electrolyte case 4 is put into fluid sample room 2, electrolyte solution 3.5%NaCl, because
This reference electrode selects saturated calomel electrode to add salt bridge.
Step 3: being fixed using will pop one's head in beam and reference electrode of appropriate device, probe beam and reference electrode are separately fixed at
On first fixing clamp 18 and the second fixing clamp 22, wherein electrode probe beam is contacted by ion conductive membrane with test sample, reference
Electrode is placed in electrolyte solution by salt bridge, and ion conductive membrane infiltrates in electrolyte solution.Using such as in the present embodiment
The corrosion potential and electric current on Fig. 1 shown device measurement welding point surface.Ion conductive membrane both ends infiltrate in electrolyte solution,
Electrode probe beam is placed in above welding point and is contacted by ion conductive membrane with test sample, and reference electrode is placed by salt bridge
In 3.5% NaCl electrolyte solution, beam finally will be popped one's head in using fixed device and reference electrode is fixed.
Step 4: current signal being acquired using the device with zero resistance circuit, wherein electrode probe beam and electrochemical measurement
The connection of device working end, test sample are connect with electrochemical testing device ground terminal, and reference electrode (adding salt bridge) and electrochemistry are surveyed
Try the connection of equipment and instrument reference electrode end.
Step 5: opsition dependent and detected materials form galvanic couple pair to each probe respectively, sample according to determining the characteristics of material
Moment after sampling, changes a probe, until all probe samplings terminate.
Step 6: the current potential and current signal of acquisition being analyzed and processed, current potential and current distributing figure are exported, determines examination
The anode and cathode region on sample surface simultaneously judges that the galvanic corrosion sensibility at each position of welding point is strong and weak.After being acquired in the present embodiment
Electric current and potential data use the self-editing difference program of Matlab to carry out processing drawing.
Embodiment 3
The non-destructive testing device of the present embodiment is with embodiment 2, and in the present embodiment, the conductive membrane uses filter paper, described
Reference electrode uses saturated calomel electrode, and the NaCl solution for having 3.5%, multichannel electricity are stored in the electrolyte case 4
Pole probe metal electrode bar material be Q235 model carbon steel, wherein multi-channel electrode probe by 64 Q235 models carbon steel
Stick is equidistantly fixed in phenolic resin, is arranged at 8 rows 8,1.0mm is arranged in phenolic resin at equal intervals, the carbon steel of Q235 model
The diameter of stick is 1.2mm.The signal acquisition terminal of electro-chemical measuring apparatus includes 64 signal acquisition contacts, multi-channel electrode probe
Top and electro-chemical measuring apparatus signal acquisition terminal specific connection type are as follows: multi-channel electrode probe 64 metal electricity
Pole stick is connect with 64 signal acquisition contacts of the signal acquisition terminal of electro-chemical measuring apparatus respectively by 64 conducting wires.Electrochemistry
Measuring device is controlled by the single-chip microcontroller that is embedded, according to the position of 64 metal electrode bars, successively 64 signals of acquisition order
The current signal of collection point.
The lossless detection method of online prison detection metal welding joints galvanic corrosion sensibility is realized by step:
Step 1: according to welded seam area surface shape and the suitable electrode probe beam of material selection and adjustment probe beam curved surface.
Test sample is the welding point of Q235 steel in the present embodiment, and welded seam area is smaller to occupy intermediate, and surface is parallel with base material.Will
Weld joint samples 10 to be measured are fixed between two clamping plates 9, and the surface area of entire welding point part is 13*13mm, are visited
Needle material uses Q235 carbon steel, the arrangement of 8*8 parallel array, probe diameter 1.2mm, spacing 1.0mm.
Step 2: suitable reference electrode and salt bridge are chosen according to electrolyte solution.3.5% NaCl solution is placed to
In electrolyte case 4, and electrolyte case 4 is put into fluid sample room 2, electrolyte solution 3.5%NaCl, because
This reference electrode selects saturated calomel electrode to add salt bridge.
Step 3: being fixed using will pop one's head in beam and reference electrode of appropriate device, probe beam and reference electrode are separately fixed at
On first fixing clamp 18 and the second fixing clamp 22, wherein electrode probe beam is contacted by ion conductive membrane with test sample, reference
Electrode is placed in electrolyte solution by salt bridge, and ion conductive membrane infiltrates in electrolyte solution.Using such as in the present embodiment
The corrosion potential and electric current on Fig. 1 shown device measurement welding point surface.Ion conductive membrane both ends infiltrate in electrolyte solution,
Electrode probe beam is placed in above welding point and is contacted by ion conductive membrane with test sample, and reference electrode is placed by salt bridge
In 3.5% NaCl electrolyte solution, beam finally will be popped one's head in using fixed device and reference electrode is fixed.
Step 4: current signal being acquired using the device with zero resistance circuit, wherein electrode probe beam and electrochemical measurement
The connection of device working end, test sample are connect with electrochemical testing device ground terminal, and reference electrode (adding salt bridge) and electrochemistry are surveyed
Try the connection of equipment and instrument reference electrode end.
Step 5: opsition dependent and detected materials form galvanic couple pair to each probe respectively, sample according to determining the characteristics of material
Moment after sampling, changes a probe, until all probe samplings terminate.
Step 6: the current potential and current signal of acquisition being analyzed and processed, current potential and current distributing figure are exported, determines examination
The anode and cathode region on sample surface simultaneously judges that the galvanic corrosion sensibility at each position of welding point is strong and weak.After being acquired in the present embodiment
Electric current and potential data use the self-editing difference program of Matlab to carry out processing drawing.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art
For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (7)
1. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility, which is characterized in that including detecting box, the inspection
It surveys in box and two fluid sample rooms and a solid sample room is separated by partition, the side wall of the solid sample room, which is equipped with, to be supplied
The strip gab that conducting wire penetrates；
The fluid sample room is symmetricly set on the left and right sides of the solid sample room, is respectively provided with electricity in the fluid sample room
Matter case is solved, the top of the electrolyte case is equipped with locating flange, and the outer of the locating flange protrudes from described
The box wall of detection box or the partition, convenient for taking out electrolyte case out of fluid sample room, through being stored in it
Electrolyte solution pours, and cleans to it；
The clamping plate for being driven clamp system driving is equipped in the solid sample room, the clamping plate connects for fixation by be measured
Head sample, the housing that the driving clamp system includes the inner rod being fixed on partition and is slidably connected with the inner rod
Cylinder, the outer sleeve is interior to be equipped with a cavity being inserted into for inner rod, is equipped with holddown spring in the cavity；Drive clamp system
Setting, can be used for fixing weld joint samples to be measured, under the action of holddown spring, the present apparatus be applicable to different in width to
Weld joint samples are surveyed, convenient for detecting the progress of operation；
The top of the detection box is equipped with conductive membrane, and the middle part of the conductive membrane is bonded with the weld joint samples to be measured, institute
In the electrolyte solution for the electrolyte case that left side is immersed in the left end for stating conductive membrane, the right end of the conductive membrane immerses right side
In the electrolyte solution of electrolyte case；
The top of the conductive membrane is equipped with the multi-channel electrode fitted closely with it and pops one's head in, in one of electrolyte case
Reference electrode is equipped in electrolyte solution, the reference electrode is placed in electrolyte solution by salt bridge, the multichannel electricity
Pole probe, the reference electrode and the welding point weld metal zone in weld joint samples to be measured bottom surface pass through respectively conducting wire with
The signal acquisition terminal of electro-chemical measuring apparatus, calibration reference electrode end are connected with ground terminal, the electro-chemical measuring apparatus
Signal output end is connected with computer.
2. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility as described in claim 1, which is characterized in that
The side of the detection box is equipped with bracket, and the middle part of the bracket is equipped with the first supporting rod being rotatablely connected with it, the bracket
Top be equipped with the second supporting rod for being rotatablely connected with it, the end of first supporting rod is equipped with for fixing reference electrode
First fixing clamp, the end of second supporting rod are equipped with the second fixing clamp for fixing multi-channel electrode probe.
3. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility as described in claim 1, which is characterized in that
The reference electrode is saturated calomel electrode.
4. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility as described in claim 1, which is characterized in that
The conductive membrane is sponge, timber, filter paper or bamboo.
5. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility as described in claim 1, which is characterized in that
The multi-channel electrode probe metal electrode bar material is the carbon steel of Q235 model, and wherein multi-channel electrode probe is by 9-64 root
The carbon steel rod of Q235 model is equidistantly fixed in phenolic resin, is arranged at 3-8 row 3-8.
6. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility as described in claim 1, which is characterized in that
The electrolyte solution is 3.5%NaCl solution.
7. the non-destructive testing device of integral type on-line checking galvanic corrosion sensibility as described in claim 1, which is characterized in that
The diameter of the multi-channel electrode probe metal electrode bar is 1.0mm-1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820403110.6U CN208568662U (en) | 2018-03-23 | 2018-03-23 | The non-destructive testing device of integral type on-line checking galvanic corrosion sensibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820403110.6U CN208568662U (en) | 2018-03-23 | 2018-03-23 | The non-destructive testing device of integral type on-line checking galvanic corrosion sensibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208568662U true CN208568662U (en) | 2019-03-01 |
Family
ID=65453608
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820403110.6U Expired - Fee Related CN208568662U (en) | 2018-03-23 | 2018-03-23 | The non-destructive testing device of integral type on-line checking galvanic corrosion sensibility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208568662U (en) |
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2018
- 2018-03-23 CN CN201820403110.6U patent/CN208568662U/en not_active Expired - Fee Related
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