CN103837465B - A kind of dripping type corrosion environment simulator for repeated bend test - Google Patents
A kind of dripping type corrosion environment simulator for repeated bend test Download PDFInfo
- Publication number
- CN103837465B CN103837465B CN201410084399.6A CN201410084399A CN103837465B CN 103837465 B CN103837465 B CN 103837465B CN 201410084399 A CN201410084399 A CN 201410084399A CN 103837465 B CN103837465 B CN 103837465B
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- reservoir
- instillation
- corrosive
- collection box
- liquid
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- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 51
- 230000008020 evaporation Effects 0.000 claims abstract description 15
- 238000001704 evaporation Methods 0.000 claims abstract description 15
- 238000009661 fatigue test Methods 0.000 claims abstract description 12
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920005479 Lucite® Polymers 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000443 aerosol Substances 0.000 description 5
- 238000007654 immersion Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of dripping type corrosion environment simulator for repeated bend test, including instillation unit and liquid collecting unit；Instillation unit includes that support, pedestal upper end hang with reservoir, and reservoir is provided with reservoir inlet and reservoir liquid outlet, and the reservoir liquid outlet of reservoir connects the inlet of catheter, and the liquid outlet of catheter adjusts knob by instiling and connects instillation nozzle；Liquid collecting unit is divided into absorption evaporation mask or slot type return tank, absorbs evaporation mask and designs can be covered in wherein by fatigue testing specimen according to the shape of fatigue machine；Slot type return tank is made up of corrosive liquid collection box and circulating pump, and circulating pump one end pipeline communication corrosive liquid collection box, other end pipe outlet is placed on corrosive liquid collection box.The invention has the beneficial effects as follows provide a kind of semi-open-type, operation the easiest, it is possible to closer to the corrosion environment simulator of true corrosive environment, and its cost is the lowest.
Description
Technical field
The invention belongs to corrosive environment simulator technical field, relate to a kind of for flexural fatigue
The dripping type corrosion environment simulator of test.
Background technology
The most both at home and abroad about corrosion fatigue environmental cabinet, it is all confined space type, and tired
Sample is soaked in corrosive environment liquid.This kind of corrosive environment case is on the one hand due to reasons such as leakproofs
Causing structure complicated and operation inconvenience, the cost of device is also far above the decades of times of this device.Separately
On the one hand, the environment that hermetic type immersion type corrosive environment can be simulated mutually, with actual environment phase
Poor is bigger.This is because, plant equipment or traffic automobile, train in engineering reality, fly
The apparatuss of transport such as machine, the corrosive environment of its equipment or part is often in only moist state
Rather than be soaked among corrosive liquid.
Summary of the invention
The purpose of the present invention is providing a kind of dripping type corrosive environment for repeated bend test
Analog, solves current closed corrosion fatigue environmental cabinet structure complicated, and cost is high,
And the problem that actual environment can not be simulated well.
The technical solution adopted in the present invention is to include instillation unit and liquid collecting unit；Instillation unit
Including support, pedestal upper end hangs with reservoir, and reservoir is provided with reservoir inlet and liquid storage
Device liquid outlet, the reservoir liquid outlet of reservoir connects the inlet of catheter, going out of catheter
Liquid mouth adjusts knob by instiling and connects instillation nozzle；Liquid collecting unit is divided into absorption evaporation mask or slot type
Return tank, absorbs evaporation mask and designs fatigue testing specimen can be covered in it according to the shape of fatigue machine
In；Slot type return tank is made up of corrosive liquid collection box and circulating pump, circulating pump one end pipeline communication
Corrosive liquid collection box, other end pipe outlet is placed on corrosive liquid collection box.
The feature of the present invention also reside in reservoir, catheter and instillation nozzle material can use glass or
Plastics, described instillation adjusts knob material can use plastics or rubber.Absorb the material of evaporation mask
For corrugated paper；The material of corrosive liquid collection box is lucite or quartz glass.
The invention has the beneficial effects as follows provide a kind of semi-open-type, operation the easiest, energy
Enough corrosion environment simulator closer to true corrosive environment, and its cost is the lowest.
Accompanying drawing explanation
Fig. 1 is instillation cellular construction schematic diagram；
Fig. 2 is to absorb evaporation mask structural representation；
Fig. 3 is slot type return tank structural representation.
In figure, 1. support, 2. reservoir, 3. catheter, 4. instil and adjust knob, 5. instillation nozzle,
6. absorb evaporation mask, 7. corrosive liquid collection box, 8. circulating pump, 9 samples.
Detailed description of the invention
The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.
The present invention be utilize dripping type transfusion device principle exploitation design for realize corrosion
The corrosion environment simulator of fatigue test.According to the test needs to corrosive environment, Ke Yishi
The now simulation of instillation fog environment and two kinds of corrosive environments of corrosive liquid immersion type controls.This dripping type
Corrosive environment device is applicable to tired bending style, and specimen shape is notched specimen, taper or sand
Leakage shape etc. can prejudge out the sample of fatigue fracture position.Concrete technical scheme is as follows: as
Shown in Fig. 1, dripping type corrosion fatigue environment control unit is mainly by instillation unit and liquid collecting unit
Two parts are constituted；
Instillation unit: (1) mainly realizes corrosive liquid and stores and corrosive environment control, specifically by propping up
Frame 1 upper end hangs with reservoir 2, and reservoir 2 is provided with reservoir inlet and reservoir goes out liquid
Mouthful, the reservoir liquid outlet of reservoir 2 connects the inlet of catheter 3, going out of catheter 3
Liquid mouth adjusts knob 4 by instiling and connects instillation nozzle 5；(2) assembly material of this unit according to
Corrosive liquid characteristic, reservoir 2, catheter 3 and instillation nozzle 5 material can use glass or plastics,
Or other resistant material, adjustment knob 4 material that instils can use plastics or rubber, or other
Resistant material；(3) in use, instillation nozzle 5 is fixed on sample 9 and fatigue will occur
The position of fracture；(4) instillation unit realizes aerosol environmental simulation method: on the one hand, by dripping
Note adjusts knob 4 makes corrosive liquid drip several constantly dripping to fatigue testing specimen with the unit interval of regulation
9；On the other hand, the corrosion drop on sample 9 will evaporate within tens of seconds.So, pass through
The speed of the drop of control corrosion rate liquid with evaporation send out speed balanced degree, can realize aerosol or
The corrosive environment of nearly aerosol.Although corroding drop after fatigue testing specimen 9 not by flash evapn
And form aerosol environment, but the several seconds needed for the evaporation of this corrosive liquid actually can't be to sample
The impact of the fatigue life of 9.This is because Fatigue Test Time is the fewest to a few hours, long
By tens of hours, the impact of short tens of seconds can be ignored completely；Meanwhile, actual parts
True corrosive environment also tend to quantify, but according to the observation judge obtain, therefore corrode
The quantification of environment is accurately controlled in fatigue test does not have practical significance.And present invention dress
The determination methods put, the most consistent with the determination methods of actual parts corrosive environment, actual
Application also indicates that its more practicality.(5) analogy method of immersion type corrosive environment: work as control
During the bigger formation of corrosive liquid flow fluid injection continuous to sample, immersion type corrosion ring can be achieved
Border.Now, the flow-control of corrosive liquid will use following of the corrosion-resistant fractional motor of controllable flow rate instead
Ring pump 8 realizes.
Liquid collecting unit: (1) mainly collects the corrosive liquid after fatigue testing specimen 9 flies, according to
Fog corrosive environment and immersion type corrosive environment, the shape of liquid collecting unit is divided into absorption evaporation mask 6
With slot type return tank two kinds；(2) absorb evaporation mask 6 material and use the good corrugated paper of hygroscopicity,
Shape according to fatigue machine can be advantageously shaped to various simple shape, is fixed on fatigue
On testing machine, and fatigue testing specimen 9 is covered in wherein.It is illustrated in figure 2 and tries for rotoflector
Test the absorption evaporation mask 6 of machine.Owing to the corrosive liquid consumption of aerosol corrosive environment is little, so dripping
The big portion of corrosive liquid noted on sample 9 is evaporated, and is not evaporated and falls or splash
The corrugated paper liquid-collecting cover being housed in around sample 9 is absorbed and evaporates in time by corrosive liquid；(3) as
Shown in Fig. 3, slot type return tank is made up of lucite or quartz glass, after flowing through sample 9
Liquid will be refluxed groove and collect and be stored in corrosive liquid collection box 7, then by circulating pump 8 pump
Flow out to other end outlet, it is achieved the circulation of corrosive liquid.
Existing corrosion fatigue environmental cabinet is all hermetic type, and cost is tens of higher than this device
Times, and it is invisible to operate complex corrosion environment.Compared with conventional corrosion environment simulator,
It is an advantage of the invention that and significantly widened corrosive environment scope, i.e. can provide from tide on a large scale
Wet to the etching condition scope soaked；The control of corrosive environment significantly simplifies, easy；It is suitable for model
Enclose wider, be not only suitable for rotary bending fatigue test, be also applied for three, the examination of four-point bending fatigue
Test；Cost is the cheapest, is even close to zero.
Claims (1)
1. for a dripping type corrosion environment simulator for repeated bend test, its feature
It is: include instillation unit and liquid collecting unit；Described instillation unit includes support (1),
Frame (1) upper end hangs with reservoir (2), reservoir (2) be provided with reservoir inlet and
Reservoir liquid outlet, the reservoir liquid outlet of reservoir (2) connects the feed liquor of catheter (3)
Mouthful, the liquid outlet of catheter (3) adjusts knob (4) by instiling and connects instillation nozzle (5)；
Described liquid collecting unit is divided into absorption evaporation mask (6) or slot type return tank, absorbs evaporation mask
(6) design fatigue testing specimen can be covered in wherein according to the shape of fatigue machine；Slot type refluxes
Case is made up of corrosive liquid collection box (7) and circulating pump (8), circulating pump (8) one end pipeline
Connection corrosive liquid collection box (7), other end pipe outlet be placed in corrosive liquid collection box (7) it
On；
Described reservoir (2), catheter (3) and instillation nozzle (5) material can use glass
Or plastics, described instillation adjusts knob (4) material can use plastics or rubber；
The material of described absorption evaporation mask (6) is corrugated paper；Described corrosive liquid collection box (7)
Material be lucite or quartz glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084399.6A CN103837465B (en) | 2014-03-07 | 2014-03-07 | A kind of dripping type corrosion environment simulator for repeated bend test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084399.6A CN103837465B (en) | 2014-03-07 | 2014-03-07 | A kind of dripping type corrosion environment simulator for repeated bend test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103837465A CN103837465A (en) | 2014-06-04 |
| CN103837465B true CN103837465B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410084399.6A Expired - Fee Related CN103837465B (en) | 2014-03-07 | 2014-03-07 | A kind of dripping type corrosion environment simulator for repeated bend test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374430A (en) * | 2018-11-24 | 2019-02-22 | 管振平 | The detection device of metal material flexural fatigue under a kind of corrosive environment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03210452A (en) * | 1990-01-16 | 1991-09-13 | Nippon Steel Corp | Method for testing rotary bending corrosion fatigue of actual pipe |
| JPH04190139A (en) * | 1990-11-26 | 1992-07-08 | Kawasaki Steel Corp | Corrosion apparatus for fatigue test |
| CN101221108A (en) * | 2008-01-30 | 2008-07-16 | 中国科学院力学研究所 | Rotating and bending corrosion fatigue testing device |
| CN102374965B (en) * | 2010-08-11 | 2013-07-03 | 中国科学院金属研究所 | Wetted corrosive gas corrosion simulation gas collecting pipe simplified device |
| CN101975740B (en) * | 2010-08-27 | 2012-08-08 | 华南理工大学 | Medical magnesium alloy biodegradability in-vitro dynamic simulation test equipment |
| CN202057556U (en) * | 2011-05-19 | 2011-11-30 | 中国石油集团工程设计有限责任公司 | Bending corrosion fatigue tester |
| CN202420963U (en) * | 2012-01-10 | 2012-09-05 | 西南交通大学 | Sealed corrosive environment simulator for bending fatigue tester |
| CN103439202A (en) * | 2013-08-19 | 2013-12-11 | 北京航空航天大学 | System for testing fatigue in corrosion environment |
| CN203745349U (en) * | 2014-03-07 | 2014-07-30 | 大连交通大学 | Instillation type corrosive environment simulation device for bending fatigue experiment |
-
2014
- 2014-03-07 CN CN201410084399.6A patent/CN103837465B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374430A (en) * | 2018-11-24 | 2019-02-22 | 管振平 | The detection device of metal material flexural fatigue under a kind of corrosive environment |
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