CN107991223A - A kind of test button atmospheric corrosion exposure test device and method - Google Patents
A kind of test button atmospheric corrosion exposure test device and method Download PDFInfo
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- CN107991223A CN107991223A CN201711202732.9A CN201711202732A CN107991223A CN 107991223 A CN107991223 A CN 107991223A CN 201711202732 A CN201711202732 A CN 201711202732A CN 107991223 A CN107991223 A CN 107991223A
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- atmospheric corrosion
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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
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
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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
- G01N17/002—Test chambers
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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
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
Abstract
A kind of test button atmospheric corrosion exposure test device, including fixing support for base（1）, cant beam（3）, crossbeam（4）, rear vertical beam（8）With atmospheric corrosion detector installs case（2）.One end of two cant beams is separately mounted to fixing bracket top front end rotatable shaft（7）Both ends, the other end be separately mounted to two after on vertical beam；More crossbeams, which are parallel to each other, to be respectively perpendicular on two cant beams；Crossbeam is divided into upper and lower two regions；Respectively symmetrically place test button in upper and lower two region（5）；Big temperature/humidity sensor is installed in lower region, atmospheric corrosion detector monitoring record simultaneously preserves the galvanic corrosion electric current of dissimilar metal sample and big temperature/humidity.The present invention can analyze the relation of air Galvanic Corrosion of Dissimilar Metals and lighting angle by the test button corrosion weight loss in region, corrosion product, erosion profile corrosion current etc. under different angle.
Description
Technical field
The present invention relates to a kind of test button atmospheric corrosion exposure test device and method, belongs to anti-corrosion of metal testing equipment skill
Art field.
Background technology
Traditional atmospheric corrosion exposure test mostly carries out in the atmospheric corrosion test station, installs the exposure of coupon
Test stand is fixed on cement flooring, stablizes relatively, and has personal management, experimental condition comparatively perfect.But it is directed to power grid transmission line
The atmospheric corrosion resistance detection of line pole tower metal material, then need to be grown on the electric power line pole tower under more adverse circumstances
The live coupon hanging test of phase, due to the boisterous influence such as outdoor typhoon, heavy rain, coupon exist come off,
The risk of loss, and traditional exposure test frame needs to fix sample with specimen holder, it is complicated and easily sample occur and come off
Phenomenon, influences the success rate of experiment, is not suitable for the grid power transmission overhead line structures scene test button hanging test under adverse circumstances.
The generation of galvanic corrosion be due between different materials there is potential difference, when external environment is adapted to, current potential compared with
Low material accelerated corrosion.With the fast development of industry, coupling between different materials is more and more, and galvanic corrosion also obtains
The concern of many researchers.Research shows, potential difference, anode and cathode area ratio between different kinds material, electrolyte solution
Electric conductivity and aggressivity, pH value, temperature, the flowing velocity of liquid, the thickness of thin liquid film and component and two electrodes between
Distance etc. can all have an impact the galvanic corrosion of material.The existing experiment majority in relation to galvanic corrosion under solution condition into
OK, under air the research majority of galvanic corrosion be confined to calculating simulation with calculate, without relevant experimental data directly to its into
Line justification.It is well known that under atmospheric environment, the corrosion process of material occurs under thin liquid film, has with the corrosion in solution
Very big difference, also, the research in relation to galvanic corrosion seldom directly reflects galvanic corrosion using the method monitored in real time before
Process.
The content of the invention
The object of the present invention is to for traditional atmospheric corrosion exposure test there are the problem of, the present invention proposes a kind of gold
Belong to sample atmospheric corrosion exposure test device and method.
Technical scheme is as follows：A kind of test button atmospheric corrosion exposure test device, including base fix branch
Frame, cant beam, crossbeam, rear vertical beam and atmospheric corrosion detector installs case, described device have the adjustment of a carrying tested sample
Frame, side and the fixing bracket of adjustment frame are hinged, and opposite side is affixed with fixing bracket；It is divided into two regions in the adjustment frame,
The test button of identical type is placed with respectively, and the sample in one of region is connected with atmospheric corrosion detector；Atmospheric corrosion
Detector carries out Corrosion monitoring to metal exemplar.
The adjustment frame is parallel to each other by two cant beams being parallel to each other and Duo Gen and the crossbeam vertical with cant beam is formed；Two
One end of root cant beam is hinged with fixing bracket；The other end is fixed on support bracket fastened rear vertical beam.
The beam surface upper both ends are each provided with a crossbeam mounting hole, the inside concave card slot of crossbeam front surface, institute
State crossbeam and carry scale mark, the card slot is placed and fixed test button；
Crossbeam region is divided into upper and lower two regions using the crossbeam in centre position as boundary；Upper and lower two region is right respectively
Claim to place test button；Different types of test button in lower region is by conducting wire and is placed on atmospheric corrosion detector installs case
Interior atmospheric corrosion detector is connected；Big temperature/humidity sensor, Atmosphere temp.and RH inductor are installed in the lower region
It is connected by conducting wire with atmospheric corrosion detector, atmospheric corrosion detector monitoring record simultaneously preserves different types of test button
Galvanic corrosion electric current and big temperature/humidity；Atmospheric corrosion detector installs case is installed in fixing support for base.
The cant beam is made of the first cant beam and the second cant beam；First cant beam and the second cant beam are that cross section is rectangle
Rod shaped structure, the first cant beam both ends are provided with bolt hole, and centre is provided with kidney-shaped groove；It is provided among second cant beam and leads to for bolt
The long waist shaped groove crossed；Along the length direction of the first cant beam, the second cant beam and the first cant beam are bolted and are integrated, and pass through tune
The relative position of the second cant beam and the first cant beam is saved, the cant beam of the different length more than the first cant beam length can be obtained.
Four bolts hole have been sequentially distributed from top to bottom on vertical beam after described；The screw hole of described first cant beam one end passes through spiral shell
Tether and connect rotation axis, and using rotation axis as fulcrum, it is nethermost that rear vertical beam is bolted in the screw hole of the first cant beam other end
Screw hole, the first cant beam is with the horizontal 15 ° at this time；When first cant beam one end connects rotation axis, the second cant beam is bolted
The uppermost screw hole of vertical beam afterwards, then stretched the second cant beam and the first cant beam after connecting fastening by bolt, at this time first
The cant beam of cant beam and the second cant beam composition is with the horizontal 60 °；When first cant beam one end connects rotation axis, the second cant beam passes through spiral shell
Tether and connect rear vertical beam second screw hole from top to bottom, then the second cant beam and the first cant beam are stretched by bolt and connect fastening
Afterwards, the cant beam that the first cant beam and the second cant beam form at this time is with the horizontal 45 °；When first cant beam one end connects rotation axis, the
Rear vertical beam the 3rd screw hole from top to bottom is bolted in two cant beams, then is stretched the second cant beam and the first cant beam by bolt
After connecting fastening, the cant beam of the first cant beam and the second cant beam composition is with the horizontal 30 ° at this time.
The oriented concave shaped sliding slot in first cant beam upper surface, spill sliding slot can change position of the crossbeam on cant beam；It is interior
Respectively there are a cant beam side mounting hole, one end cant beam side mounting hole connection rotation axis, the installation of other end cant beam side in side both ends
Hole connects the second cant beam.
The fixing support for base is highly 10cm, and setting can be adjusted according to real atmosphere environment such as local snowfalls and is closed
The height of reason.
Described device material is light material, has the Sample devices structure that test button contacts to use PC materials, remaining is adopted
Use aluminum alloy material；SD card is set in atmospheric corrosion detector, SD card records and preserves the galvanic couple corruption of different types of test button
Lose electric current and big temperature/humidity.
A kind of metallographictest atmospheric corrosion exposure test method, step are as follows：
(1) before testing, according to local weather and test requirements document, a conjunction is selected from 15 °, 30 °, 45 ° and 60 °
Suitable atmospheric corrosion angle；Cant beam is fixed on rear vertical beam by bolt；
(2) the crossbeam region in adjustment frame is divided into upper and lower two regions；Place dissimilar metals pair in upper region
Than sample, the dissimilar metals sample identical with upper region is placed in lower region；Lower regions sample is symmetrically placed；Lower region is not
With type of metal back side welding lead as galvanic corrosion test button；
(3) big temperature/humidity sensor is installed in the lower region, Atmosphere temp.and RH inductor passes through conducting wire and air
Corrosion monitoring instrument is connected；
(4) atmospheric corrosion detector monitoring record and the galvanic corrosion electric current and air of dissimilar metals sample are preserved
Temperature/humidity；Set SD card in atmospheric corrosion detector, SD card records and preserves the galvanic corrosion electric current of variety classes category sample and big
Temperature/humidity value；
(5) sample that upper and lower region is placed is taken back into laboratory and carries out data collection and analysis, wherein corrosion weight loss utilizes mistake
Weight method, corrosion product utilize XRD method, and erosion profile utilizes scanning electron microscope.
Target sample and the selection of contrast sample, should judge according to the goal in research of experimenter.Such as study different metal
Between galvanic corrosion, same metal is had respectively different metal conducting wire connection, by different metal collection test button corrode
Weightlessness, corrosion product, erosion profile judge different metal extent of corrosion, are ranked up according to corrosion size, may compare explanation
The complexity of the generation of galvanic corrosion of the different metal in real atmosphere environment is tested.
Such as study galvanic corrosion and do not participate in the contrast (illustrating with Q235 steel and zinc) of galvanic corrosion test button, lower area
Domain Q235 steel is connected with zinc conducting wire, and upper region Q235 steel is connected with zinc without conducting wire；It is rotten to gather two groups of metallographictest test buttons
Weightlessness, corrosion product, erosion profile, galvanic corrosion current data are lost, the Q235 steel in upper region and the Q235 steel in lower region contrast,
The zinc in upper region and the zinc in lower region contrast, and the coupling rate of Q235 steel and zinc can be explained, and are the quantitative comparisons of galvanic corrosion.
The invention has the advantages that apparatus of the present invention pass through the test button corrosion weight loss in region, corruption in different angle
Erosion product and erosion profile etc. can analyze the corrosion of air test button and the relation of lighting angle；Region under different angle can be passed through
Test button corrosion weight loss, corrosion product, erosion profile, the analysis air Galvanic Corrosion of Dissimilar Metals such as galvanic corrosion electric current and illumination
The relation of angle.
Brief description of the drawings
Fig. 1 is the structure diagram of test button atmospheric corrosion exposure test device of the present invention；
Fig. 2 is fixing support for base base cross members structure chart；
Fig. 3 is the first cant beam schematic diagram；
Fig. 4 is the second cant beam schematic diagram；
Fig. 5 is crossbeam top view；
Fig. 6 is crossbeam front view；
Fig. 7 is vertical beam side view after fixing support for base；
In figure, 1 is fixing support for base；2 be atmospheric corrosion detector installs case；3 be cant beam；4 be crossbeam；5 be metal
Sample；6 be the crossbeam of fixing support for base；7 be rotation axis；8 be rear vertical beam；9 be base mounting hole；10 be the first cant beam；11
It is the second cant beam；12 be the second cant beam long lumbar hole；13 be crossbeam mounting hole；14 be card slot；15 be rear vertical beam mounting hole.
Embodiment
A kind of metallographictest atmospheric corrosion exposure test device provided in this embodiment, including fixing support for base 1, air
Corrosion monitoring instrument installs case 2, cant beam 3, rear vertical beam 8 and crossbeam 4, as shown in Figure 1.
The crossbeam 6 of the fixing support for base of the present embodiment is equipped with some base installing holes 9, sees Fig. 2；Mounting hole passes through fixation
The effect of nail, enhances the stabilization of whole experimental rig, sets atmospheric corrosion detector installs case 2 in fixing support for base 1, greatly
Installation atmospheric corrosion detector in gas corrosion detector installs case, the top of fixing support for base 1 setting two are parallel to each other oblique
Beam 3, the fixing support for base 1 is with installing a rotation axis 7 at 3 least significant end of cant beam；Cant beam 3 is by the first cant beam 10 and second
Cant beam 11 forms, as shown in Figure 3 and Figure 4；First cant beam 10 and the second cant beam 11 are that cross section is rectangular rod shaped structure,
First cant beam, 10 both ends are provided with bolt hole, and centre is provided with kidney-shaped groove；The length passed through for bolt is provided among second cant beam 11
Waist hole 12；Along the length direction of the first cant beam, the second cant beam and the first cant beam are bolted and are integrated, by adjusting second
The relative position of cant beam and the first cant beam, can obtain the cant beam of the different length more than the first cant beam length.
Vertical beam mounting hole 15 after being sequentially distributed four from top to bottom on vertical beam 8 after described in the present embodiment, as shown in Figure 7；
Rotation axis 7 is bolted in the screw hole of described first cant beam one end, and using rotation axis as fulcrum, the spiral shell of the first cant beam other end
The nethermost rear vertical beam mounting hole 15 of rear vertical beam is bolted in hole, and the first cant beam is with the horizontal 15 ° at this time；When first oblique
Beam one end connects rotation axis, and the uppermost rear vertical beam mounting hole of rear vertical beam is bolted in the second cant beam long lumbar hole 12, then leads to
Cross bolt to stretch the second cant beam and the first cant beam after connecting fastening, at this time the cant beam of the first cant beam and the second cant beam composition
With the horizontal 60 °；When first cant beam one end connects rotation axis, rear vertical beam is bolted from upper in the second cant beam long lumbar hole 12
Down vertical beam mounting hole after second, then stretched the second cant beam and the first cant beam after connecting fastening by bolt, at this time
The cant beam of first cant beam and the second cant beam composition is with the horizontal 45 °；When first cant beam one end connects rotation axis, the second cant beam length
Waist hole 12 is bolted rear vertical beam vertical beam mounting hole after the 3rd from top to bottom, then by bolt by the second cant beam and first
Cant beam stretches connect fastening after, at this time the first cant beam and the second cant beam composition cant beam with the horizontal 30 °.
As shown in Figure 5 and Figure 6,4 upper surface both ends of crossbeam are each provided with a crossbeam mounting hole 13 to the present embodiment crossbeam, described
The inside concave card slot 14 of crossbeam front surface, the crossbeam 4 carry scale mark, and the card slot 14 is placed and fixed test button 5.
The present embodiment atmospheric corrosion detector installs case has the performances such as waterproof and dampproof and good seal, is connect with test button
Tactile Sample devices structure uses PC materials, remaining can use aluminum alloy material.
A kind of metallographictest atmospheric corrosion exposure test method provided in this embodiment, bolt connect the experiment with nut
Device simultaneously stabilizes it firmly, by rotation axis the angle of cant beam and horizontal plane can be made to be 15,30,45 and 60, by some crossbeams
Region is divided into upper and lower two regions, and test button, lower region dissimilar metals are respectively symmetrically placed in upper and lower two region
Sample is connected by conducting wire with the atmospheric corrosion detector being placed in atmospheric corrosion detector installs case, in the lower region
The interior big temperature/humidity sensor of installation, Atmosphere temp.and RH inductor are connected by conducting wire with atmospheric corrosion detector, and air is rotten
Erosion detector monitoring record simultaneously preserves the galvanic corrosion electric current of dissimilar metals sample and big temperature/humidity, the air
Set SD card in Corrosion monitoring instrument, the SD card record and preserve dissimilar metals sample galvanic corrosion electric current and big temperature/
Humidity, can utilize internet to move APP terminals by computer and mobile phone to the information of record and monitor at any time, and to the examination
Experiment device has the function of positioning.
In order to further illustrate sudden and violent to a kind of metallographictest atmospheric corrosion provided by the invention with reference to specific embodiment
Dew experimental rig and method are described in detail, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1：
Install and fix according to the experimental rig, adjustment rotation axis makes the angle of the first cant beam 10 and horizontal plane be
15, the height of fixing support for base 1 is 10cm, width 1m, and cant beam length is aboutThe uniformly installation four on cant beam
Root is parallel to each other and the crossbeam vertical with cant beam, and crossbeam is equipped with the card slot for placing test button；Two form upper area above
Domain, below two form lower regions.
Prepare at least 10 Q235 steel and 10 galvanized steel test buttons；Q235 steel and galvanized steel are divided into a pair, average to appoint
Meaning is divided at least 10 pairs, and non-working surface is sealed with epoxy resin；Wherein 5 pairs of back side welding leads are tried as galvanic corrosion metal
Sample, galvanic corrosion test button place lower region；Separately having 5 pairs of samples, sample is placed on region as a comparison；Q235 steel, galvanized steel
Between spacing be respectively：1mm、3mm、5mm、7mm、9mm；The test button in upper and lower region is symmetrical arranged.By lower region Q235
Steel, galvanized steel are connected with atmospheric corrosion detector respectively by conducting wire.
Atmospheric corrosion detector monitoring record and preserve dissimilar metals sample galvanic corrosion electric current and big temperature/
Humidity.
The monitoring data of APP terminals is moved by computer or mobile phone, judges the off-test date.After the test, root
APP positioning functions are moved according to mobile phone, experimental rig is found, takes out all test buttons.
Corrosion current is by atmospheric corrosion detector automatic collection；Test button corrosion weight loss, corrosion product, corrosion shape
Looks data acquisition is according to corrosion current size and micro-judgment sample collection time, and sample is taken back laboratory and carries out data
Collection analysis, wherein corrosion weight loss utilize weight-loss method, and corrosion product utilizes XRD method, and erosion profile utilizes scanning electron microscope.
Test button corrosion weight loss, corrosion product and erosion profile by upper and lower region etc. analyze galvanic corrosion with not
Participate in the difference of galvanic corrosion test button.
Test button corrosion weight loss, corrosion product, erosion profile and corrosion current by analyzing and comparing lower region etc.
Study the relation between dissimilar metals galvanic corrosion and spacing in air.
Embodiment 2：
Install and fix according to the experimental rig, adjustment rotation axis makes the angle of cant beam and horizontal plane be 30, base
Fixing bracket is highly 10cm, width 1m, and cant beam length is aboutCant beam is made of the first cant beam and the second cant beam,
One end of second cant beam waist hole is connected by bolt and the 3rd hole on rear vertical beam (rear vertical beam from top to bottom the 3rd mounting hole),
The other end of second cant beam waist hole is connected by bolt with the first cant beam installation screw, and the first cant beam and the second cant beam will after stretching
Bolt fastens.
Prepare Q235 steel, galvanized steel, copper plated steel, zinc Baogang, copper, zinc test button, Q235 steel and galvanized steel, Q235 steel and
Copper plated steel, Q235 steel and zinc Baogang, Q235 steel and copper, Q235 steel and zinc are respectively a pair of, upper and lower symmetrically placed a pair in region,
Sample non-working surface is sealed with epoxy resin, and lower regional metal sample back side welding lead is as galvanic corrosion test button, often
Spacing to test button is all 5mm.Each pair of lower region test button is connected by conducting wire with atmospheric corrosion detector respectively.
Atmospheric corrosion detector monitoring record and preserve dissimilar metals sample galvanic corrosion electric current and big temperature/
Humidity.
The monitoring data of APP terminals is moved by computer or mobile phone, judges the off-test date.After the test, root
APP positioning functions are moved according to mobile phone, experimental rig is found, takes out all test buttons.
Test button corrosion weight loss, corrosion product and erosion profile by upper and lower region etc. analyze galvanic corrosion with not
Participate in the difference of galvanic corrosion test button.
Test button corrosion weight loss, corrosion product, erosion profile and corrosion current by analyzing and comparing lower region etc.
Study the relation of Galvanic Corrosion of Dissimilar Metals and metal species in air.
Embodiment 3：
With reference to the operation in embodiment 2, the angle of cant beam and horizontal plane is only changed to 45 and 60 respectively.
When the angle of cant beam and horizontal plane is 45, cant beam length is aboutCant beam is oblique by the first cant beam and second
Beam forms；At this time, the waist hole of second cant beam one end is connected with by bolt with second mounting hole on rear vertical beam, and the second cant beam is again
It is connected with the first cant beam.
When the angle of cant beam and horizontal plane is 60, cant beam length is aboutCant beam is oblique by the first cant beam and second
Beam forms；At this time, the waist hole of second cant beam one end is connected with by bolt with first mounting hole on rear vertical beam, and the second cant beam is again
It is connected with the first cant beam.
The monitoring data of APP terminals is moved by computer or mobile phone, judges the off-test date.After the test, root
APP positioning functions are moved according to mobile phone, experimental rig is found, takes out all test buttons.
Test button corrosion weight loss, corrosion product and erosion profile by region in different angle etc. analyze air metal
Sample corrodes the relation with lighting angle.
Analyzed by the test button corrosion weight loss in region, corrosion product, erosion profile corrosion current etc. under different angle
The relation of air Galvanic Corrosion of Dissimilar Metals and lighting angle.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of test button atmospheric corrosion exposure test device, including fixing support for base, cant beam, crossbeam, rear vertical beam and big
Gas corrosion detector installs case, it is characterised in that adjustment frame of the described device with a carrying tested sample, the one of adjustment frame
Side is hinged with fixing bracket, and opposite side is affixed with fixing bracket；It is divided into two regions in the adjustment frame, is placed with respectively identical
The test button of species, the sample in one of region are connected with atmospheric corrosion detector；Atmospheric corrosion detector is to metal-like
Part carries out Corrosion monitoring.
A kind of 2. test button atmospheric corrosion exposure test device according to claim 1, it is characterised in that the adjustment
Frame is parallel to each other by two cant beams being parallel to each other and Duo Gen and the crossbeam vertical with cant beam is formed；One end of two cant beams is with consolidating
Fixed rack is hinged；The other end is fixed on support bracket fastened rear vertical beam.
A kind of 3. test button atmospheric corrosion exposure test device according to claim 2, it is characterised in that the crossbeam
Upper surface both ends are each provided with a crossbeam mounting hole, the inside concave card slot of crossbeam front surface, and the crossbeam carries graduated scale
Note, the card slot is placed and fixed test button.
A kind of 4. test button atmospheric corrosion exposure test device according to claim 3, it is characterised in that the crossbeam
Region is divided into upper and lower two regions using the crossbeam in centre position as boundary；Respectively symmetrically place metal examination in upper and lower two region
Sample；The dissimilar metals sample in lower region is examined by conducting wire and the atmospheric corrosion being placed in atmospheric corrosion detector installs case
Instrument is surveyed to be connected；Big temperature/humidity sensor is installed in the lower region, Atmosphere temp.and RH inductor passes through conducting wire and air
Corrosion monitoring instrument is connected, atmospheric corrosion detector monitoring record and preserve the galvanic corrosion electric current of dissimilar metals sample with
And big temperature/humidity；Atmospheric corrosion detector installs case is installed in fixing support for base.
A kind of 5. test button atmospheric corrosion exposure test device according to claim 2, it is characterised in that the cant beam
It is made of the first cant beam and the second cant beam；First cant beam and the second cant beam are that cross section is rectangular rod shaped structure, first
Cant beam both ends are provided with bolt hole, and centre is provided with kidney-shaped groove；The long waist shaped groove passed through for bolt is provided among second cant beam；Edge
The length direction of first cant beam, the second cant beam and the first cant beam are bolted and are integrated, by adjusting the second cant beam and the
The relative position of one cant beam, can obtain the cant beam of the different length more than the first cant beam length.
6. a kind of test button atmospheric corrosion exposure test device according to claim 1, it is characterised in that perpendicular after described
Four bolts hole have been sequentially distributed on beam from top to bottom；Rotation axis is bolted in the screw hole of described first cant beam one end, and
Using rotation axis as fulcrum, the nethermost screw hole of rear vertical beam is bolted in the screw hole of the first cant beam other end, and first is oblique at this time
Beam is with the horizontal 15 °；When first cant beam one end connects rotation axis, the uppermost spiral shell of rear vertical beam is bolted in the second cant beam
Hole, then stretched the second cant beam and the first cant beam after connecting fastening by bolt, at this time the first cant beam and the second cant beam group
Into cant beam with the horizontal 60 °；When first cant beam one end connects rotation axis, rear vertical beam is bolted from upper in the second cant beam
Down second screw hole, then stretched the second cant beam and the first cant beam after connecting fastening by bolt, at this time the first cant beam
Cant beam with the second cant beam composition is with the horizontal 45 °；When first cant beam one end connects rotation axis, the second cant beam is connected by bolt
Rear vertical beam the 3rd screw hole from top to bottom is connect, then is stretched the second cant beam and the first cant beam after connecting fastening by bolt,
The cant beam of the first cant beam and the second cant beam composition is with the horizontal 30 ° at this time.
7. a kind of test button atmospheric corrosion exposure test device according to claim 1, it is characterised in that described first
The oriented concave shaped sliding slot in cant beam upper surface；Respectively there is a cant beam side mounting hole at medial surface both ends, and one end cant beam side mounting hole connects
Rotation axis is connect, other end cant beam side mounting hole connects the second cant beam.
A kind of 8. test button atmospheric corrosion exposure test device according to claim 1, it is characterised in that the base
Fixing bracket is highly 10cm.
A kind of 9. test button atmospheric corrosion exposure test device according to claim 1, it is characterised in that described device
Material is light material, has the Sample devices structure that test button contacts to use PC materials, remaining uses aluminum alloy material.
A kind of 10. metallographictest atmospheric corrosion exposure test method, it is characterised in that the method step is as follows：
（1）Before test, according to local weather and test requirements document, one is selected from 15 °, 30 °, 45 ° and 60 ° suitably
Atmospheric corrosion angle；Cant beam is fixed on rear vertical beam by screw bolt and nut；（2）By the crossbeam region in adjustment frame point
For upper and lower two regions；Dissimilar metals control sample is placed in upper region, and lower region is placed identical with upper region not of the same race
Metalloid sample；Lower regions sample is symmetrically placed；Lower region dissimilar metals back side welding lead is as galvanic corrosion gold
Belong to sample；
（3）Big temperature/humidity sensor is installed in lower region, Atmosphere temp.and RH inductor is detected by conducting wire and atmospheric corrosion
Instrument is connected；
（4）Atmospheric corrosion detector monitoring record and preserve dissimilar metals sample galvanic corrosion electric current and big temperature/
Humidity；SD card is set in atmospheric corrosion detector, there is SD card positioning and data acquisition to preserve transfer function, atmospheric temperature/humidity
Data and galvanic corrosion electric current this two classes data can reach cell phone application using SD card by wireless signal；
（5）The sample that upper and lower region is placed is taken back into laboratory and carries out data collection and analysis, wherein corrosion weight loss utilizes weightlessness
Method, corrosion product utilize XRD method, and erosion profile utilizes scanning electron microscope.
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| CN201711202732.9A CN107991223A (en) | 2017-11-27 | 2017-11-27 | A kind of test button atmospheric corrosion exposure test device and method |
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| CN201711202732.9A CN107991223A (en) | 2017-11-27 | 2017-11-27 | A kind of test button atmospheric corrosion exposure test device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520920A (en) * | 2018-12-07 | 2019-03-26 | 国网山东省电力公司电力科学研究院 | Intelligent atmospheric corrosion detector |
| CN110155365A (en) * | 2019-05-13 | 2019-08-23 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | For the fixed device of unmanned plane natural surroundings exposure test |
| CN111624151A (en) * | 2020-04-23 | 2020-09-04 | 航天科工防御技术研究试验中心 | Method for evaluating reliability of fastener natural atmospheric environment test |
| CN113158477A (en) * | 2021-04-28 | 2021-07-23 | 中国船舶重工集团公司第七一九研究所 | Multi-metal coupling corrosion simulation analysis method |
| CN113654506A (en) * | 2021-07-19 | 2021-11-16 | 电信科学技术第五研究所有限公司 | Atmospheric exposure sample thickness measuring device and method |
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