CN110320126A - A kind of vertical loading device for reciprocating corrosion fretting apparatus - Google Patents
A kind of vertical loading device for reciprocating corrosion fretting apparatus Download PDFInfo
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- CN110320126A CN110320126A CN201910760564.8A CN201910760564A CN110320126A CN 110320126 A CN110320126 A CN 110320126A CN 201910760564 A CN201910760564 A CN 201910760564A CN 110320126 A CN110320126 A CN 110320126A
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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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0236—Other environments
- G01N2203/024—Corrosive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention discloses a kind of vertical loading devices for reciprocating corrosion fretting apparatus, including Weight box and load bar, Weight box is fixedly connected on load bar upper end, load bar side is fixedly connected on vertical lines guide rail, vertical lines bearing is fixedly connected with pull pressure sensor one end, the pull pressure sensor other end is fixedly connected on adapter, adapter is fixedly connected on the support frame, support frame is fixedly connected on pedestal, and load bar lower end is sequentially installed with pressure sensor and upper fixture.Vertical loading device load of the present invention is convenient, and can real-time monitoring load stress size, by place different weight counterweight, to adapt to friction-wear test under different loading forces, and pull pressure sensor is installed additional to loading force side, can real-time monitoring frictional force size, measurement data is more stable and reliable, and error is small, vibration caused by driving motor is avoided to influence, using vertical lines bearing, guiding performance is high, loads stress equalization.
Description
Technical field
The present invention relates to a kind of vertical loading devices for reciprocating corrosion fretting apparatus, belong to fretting wear
Testing machine technical field.
Background technique
Fretting wear refers to the fricting movement occurred between the contact surface for having infinitesimal displacement amplitude, and general displacement amplitude is micro-
In rice order magnitude range, the friction under the working condition of the less stationaries such as fatigue load, mechanical oscillation, electric and magnetic oscillation or thermal cycle is
For fine motion friction, movement has concealment, but its harm is really it will be apparent that fine motion can cause material contact surface broken
It is bad, it cracks, even results in the failure of whole system.Related research institutes research shows that, the whole world is every year about
The energy of 30%-50% consumes in friction in a variety of manners, and caused economic loss is huge, about 80% machine components
Since various frictions cause to fail.Due to the degree of impairment that salt air corrosion is worn in aerospace and marine ship use process
Compare badly, if increasing the research in terms of corroding abrasion mechanism and taking adequate measures, so that it may greatly save the energy
The consumption of resource.Therefore the research of corrosion friction-wear test corrodes fretting wear essence of phenomena for disclosing, and correctly evaluates
Influence of the various factors to material corrosion friction and wear behavior has important directive function.Corroding friction wear testing machine can be compared with
For close to simulation actual condition environment, for explore and verify corrosion friction and wear mechanics in Practical Project machinery and its
Influence factor, to take appropriate action to slow down fretting wear, the corrosion resistance of reinforcing material is of great significance.
Existing fretting wear test reinforces regulating friction force size using screw, and friction testing formula is attached to driving one
There is vibration because of the influence of driving motor in side, driving side, it is difficult to which precise measurement frictional force, data are unstable.
Summary of the invention
The technical problem to be solved by the present invention is provide it is a kind of for reciprocating corrosion fretting apparatus vertical plus
It carries and sets, to solve above-mentioned problems of the prior art.
The technical scheme adopted by the invention is as follows: a kind of vertical load dress for reciprocating corrosion fretting apparatus
It sets, including Weight box and load bar, Weight box is fixedly connected on load bar upper end, and load bar side is fixedly connected on vertical lines
On guide rail, vertical lines bearing is fixedly connected with pull pressure sensor one end, and the pull pressure sensor other end is fixedly connected on switching
On part, adapter is fixedly connected on the support frame, and support frame is fixedly connected on pedestal, and load bar lower end is sequentially installed with pressure
Sensor and upper fixture.
Preferably, above-mentioned upper fixture is step axle construction, and the upside step of upper fixture is inserted into inside load bar lower end, is pressed
Force snesor covers on the upside step of upper fixture, and both ends of the surface bear against load bar lower end surface and upside step lower end surface,
Through-hole is arranged in upper fixture inner length, and spherical is arranged at through-hole lower end surface, places abrading-ball at spherical, using screw from through-hole
Upper end insertion locking abrading-ball, keeps gap between load bar (9) and salt fog cabinet (16).
Beneficial effects of the present invention: compared with prior art, vertical loading device load of the present invention is convenient, and can be real-time
Monitoring load stress size, by placing the counterweight of different weight, so that friction-wear test under different loading forces is adapted to, and
Pull pressure sensor is installed additional to loading force side, can real-time monitoring frictional force size, measurement data is more stable and reliable, error
It is small, avoid vibration caused by driving motor from influencing, using vertical lines bearing, guiding performance is high, loads stress equalization.
Detailed description of the invention
Fig. 1 is testing machine schematic perspective view；
Fig. 2 is the front view of Fig. 1；
Fig. 3 is the isometric view of abrasion tester；
Fig. 4 is upper fixture junction structural schematic diagram.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment 1: as Figure 1-Figure 4, a kind of vertical loading device for reciprocating corrosion fretting apparatus,
The vertical loading device includes Weight box 13 and load bar 9, and Weight box 13 is fixedly connected on 9 upper end of load bar, 9 side of load bar
The guide rail bar being fixedly connected on vertical lines guide rail 11, the sliding block of vertical lines bearing 11 are fixedly connected with pull pressure sensor 11
One end, 11 other end of pull pressure sensor are fixedly connected on adapter 10, and adapter 10 is fixedly connected on support frame 2, branch
Support 2 is fixedly connected on pedestal 1, and 9 lower end of load bar is sequentially installed with pressure sensor 8 and upper fixture 7, load bar 9 and salt
Fog chamber 16(load bar be inserted into salt fog cabinet upper side wall through hole) between keep gap.
Preferably, above-mentioned 9 segmentum laterale of load bar passes through round telescopic 15 and is connected on 16 lateral surface of salt fog cabinet, Neng Goushi
Sealing between existing load bar and salt fog cabinet avoids preventing salt fog to the corrosion of other assemblies and stablizes internal concentration of saline fog.
Preferably, above-mentioned upper fixture 7 is step axle construction, as shown in figure 4, the upside step of upper fixture 7 is inserted into load
Inside 9 lower end of bar, 8 sets of pressure sensor on the upside step of upper fixture 7, both ends of the surface bear against 9 lower end surface of load bar
With upside step lower end surface, through-hole is arranged in 7 inner length of upper fixture, and setting spherical is (with abrading-ball sphere diameter phase at through-hole lower end surface
Deng), abrading-ball 30 is placed at spherical, and locking abrading-ball 30,29 lower end of lock-screw are inserted into from through-hole upper end using lock-screw 29
Setting table stage, step platform lower end surface are provided with the equal spherical groove of 30 sphere diameter of abrading-ball, in upper fixture 7 and 9 lower end of load bar
Interporal lacuna cooperation.
Embodiment 2: as Figure 1-Figure 4, a kind of reciprocating corrosion fretting apparatus, including bottom plate 20, salt fog cabinet
16, vertical loading device and horizontal mobile device, 16 lower ending opening of salt fog cabinet, 20 fixed seal connection of bottom plate is under salt fog cabinet 16
It holds, is fixedly connected with supporting block 3 in the middle part of bottom plate 1, the guide rail bar of horizontal linear guide rail 4 is fixedly connected in supporting block 3, it is horizontal straight
Horizontal mobile device and lower fixture 5 are fixedly connected on the sliding block of line guide rail 4, vertical loading device lower end is sequentially installed with pressure
Sensor 8 and upper fixture 7 with lower 5 face of fixture, vertical loading device movable sealing pass through 16 top of salt fog cabinet, transverse shifting
Device movable sealing passes through 16 side wall of salt fog cabinet, and mouth 14 and installation occur for the salt fog that connection salt day with fog is provided on rear side of salt fog cabinet 16
There is salt fog humidity sensor 6, bottom plate 20 is fixedly connected on pedestal 1.
Preferably, above-mentioned vertical loading device includes Weight box 13 and load bar 9, and Weight box 13 is fixedly connected on load bar
9 upper ends, 9 side of load bar are fixedly connected on vertical lines guide rail 11, and vertical lines bearing 11 is fixedly connected with pressure sensing
11 one end of device, 11 other end of pull pressure sensor are fixedly connected on adapter 10, and adapter 10 is fixedly connected on support frame 2
On, support frame 2 is fixedly connected on pedestal 1.
Preferably, above-mentioned 9 segmentum laterale of load bar passes through round telescopic 15 and is connected on 16 lateral surface of salt fog cabinet, Neng Goushi
Sealing between existing load bar and salt fog cabinet avoids preventing salt fog to the corrosion of other assemblies and stablizes internal concentration of saline fog.
Preferably, above-mentioned horizontal mobile device includes driving plate 18, drive rod 22, linear bearing seat 27 and crank block machine
Structure 26 and driving motor 24, driving plate 18 are horizontal L-type structure, and bending end is fixedly connected with 22 one end of drive rod, and drive rod 22 is logical
It crosses linear bearing seat 27 to be connected in support plate 28,22 other end of drive rod is connected to driving motor by slider-crank mechanism 26
24 motor shaft, driving motor 24 are fixedly connected in support plate 28, and support plate 28 is fixedly connected on cushion block 25, crank block
The rotary motion of the motor shaft of driving motor is converted to the linear motion of drive rod by mechanism, to realize that driving plate is back and forth transported
It is dynamic, realize reciprocating corrosion fretting wear test.
Preferably, non-contact displacement transducer 23, non-contact displacement transducer 23 are installed in above-mentioned support plate 29
The bending end of face driving plate 18, non-contact displacement transducer 23 use laser displacement sensor, laser displacement sensor
Reflection end is mounted in driving plate 18, for acquiring displacement data.
Preferably, above-mentioned 16 front seal of salt fog cabinet is equipped with chamber door 19, and 19 lower end of chamber door is hinged on salt fog cabinet 16, on
Middle part is mounted on salt fog cabinet 16 using 17 fastening of quick-clamping pincers, quick-clamping pincers 17 after end cap closes, chamber door 19 and salt fog cabinet
Seal gasket is set between 16, and the sealing that can fast implement chamber door is fixed.
Preferably, above-mentioned 18 segmentum laterale of driving plate is connected on 16 lateral surface of salt fog cabinet by rectangle telescopic 21, can
It realizes the sealing between driving plate and salt fog cabinet, avoid preventing salt fog to the corrosion of other assemblies and stablizes internal concentration of saline fog.
Pull pressure sensor 11, pressure sensor 8, displacement sensor 23 and salt fog humidity sensor 6 are connected to data and adopt
Collect terminal, data collection station is connected to host computer.
Salt fog cabinet 16 uses corrosion-resistant stronger acrylic board, and internal upper fixture 7, lower fixture 5,9 surface of load bar are set
Set corrosion-resistant finishes.
Preferably, above-mentioned lower fixture 5 is plate structure, and upper surface middle part is provided with the groove for placing band sample, groove
Side is provided with the stud 32 of locking sample.
Preferably, above-mentioned upper fixture 7 is step axle construction, as shown in figure 4, the upside step of upper fixture 7 is inserted into load
Inside 9 lower end of bar, 8 sets of pressure sensor on the upside step of upper fixture 7, both ends of the surface bear against 9 lower end surface of load bar
With upside step lower end surface, through-hole is arranged in 7 inner length of upper fixture, and setting spherical is (with abrading-ball sphere diameter phase at through-hole lower end surface
Deng), abrading-ball 30 is placed at spherical, and locking abrading-ball 30,29 lower end of lock-screw are inserted into from through-hole upper end using lock-screw 29
Setting table stage, step platform lower end surface are provided with the equal spherical groove of 30 sphere diameter of abrading-ball, in upper fixture 7 and 9 lower end of load bar
Interporal lacuna cooperation.
Upper fixture 7 is designed as abrading-ball special fixture, is linked together by lock-screw and the pressure sensor on top 8,
Pressure sensor 8 is resisted against between upper fixture 7 and load bar 9, and the load of the Weight box at top is transmitted to steel by load bar 9
On abrading-ball 30, and by reading data in pressure sensor；Lower fixture 5 locks sample using the clamping mode of stud 32 and groove
31, driving plate is linked together by the sliding block of bolt and the linear guide of bottom, outside driving plate with pass through screw and crank
The drive rod connection that slide block mechanism 26 connects, 26 other end of slider-crank mechanism link together with driving motor 24, support plate
On laser displacement sensor is installed, the reflection end of laser displacement sensor is mounted in driving plate 18, for acquiring displacement number
According to salt fog access port 14 accesses salt day with fog, measures feedback concentration of saline fog variation, load bar 9 and salt by salt fog humidity sensor 6
Be sealed at fog chamber 16 by column sealed telescopic 15, using Rectangular Elastic telescopic 21 to driving plate and salt fog cabinet 16 into
Row sealing, 16 bottom of box of salt fog cabinet are sealed using salt fog cabinet bottom plate 20 and salt fog cabinet 16, using quick-clamping pincers 17 and case lid
19 combination simultaneously encrypts seal and is sealed to cabinet.
The present invention using servo driving motor as power source, the equipment revolving speed is easy to control, precision is high, frequency can
It adjusts, signal is controlled by control system computer program, it can be achieved that multi-signal driving (sine wave, triangular wave and rectangular wave etc.)；
Using high-precision linear bearing as carriage, the frictional resistance in reciprocating stroke is reduced, the accuracy of experiment is improved, for corruption
The research of erosion fretting wear provides a kind of reliable experimental facilities.
This testing machine has the advantages that
(1) on the upside of salt fog cabinet and right side vertical loading device and horizontal mobile device are installed respectively, by sample carry out load and
It is mobile, it can be realized the corrosion fretting wear test under independent fretting wear test and salt fog state, easy to operate, fine motion essence
Degree is high, and load is steady, and load, to move back and forth frequency (controlling frequency using the revolving speed of control motor) adjustable, can display real-time
The coefficient of waste preferably reacts actual condition tangential fretting and wears feature, have wide range of applications, can be used as fretting wear research
Authentic experiments equipment；
(2) vertical loading device load is convenient, and can real-time monitoring load stress size, pass through the weight for placing different weight
Code to adapt to friction-wear test under different loading forces, and installs pull pressure sensor additional to loading force side, can be real-time
Frictional force size is monitored, measurement data is more stable and reliable, and error is small, avoids vibration caused by driving motor from influencing, using vertical
Linear bearing, guiding performance is high, loads stress equalization；
(3) horizontal mobile device guiding accuracy is high, and driving motor rotation driving driving plate transverse shifting, conveniently moving is quick, instead
Answer rapid sensitive；
(4) use contactless displacement sensor, can real-time monitoring fine motion change in displacement, and by pull pressure sensor,
It can monitor the friction push-pull effort of sample moving direction.
A kind of reciprocating corrosion fretting apparatus, specific experimental method are as follows: by the smog box of experiment before experiment
It is installed together with bottom plate with screw, while is packed into upper fixture to abrading-ball, sample to be tested is packed into lower fixture, led to
The stud for crossing fixture side under rotating fastens sample, is clamped installation by upper fixture rotation to abrading-ball, works as dress
After complete abrading-ball and sample, chamber door quick-clamping pincers are sealed, mouth is occurred by salt fog and accesses salt day with fog, and salt fog is housed
Humidity sensor occurs mouth by salt fog when experiment and the concentration of saline fog inside entire experimental machine is adjusted, when reaching
When setting concentration, power on, the entire frequency tested and move back and forth is controlled by controlling the revolving speed of servo motor, is passed through
Slider-crank mechanism converts rotary motion into reciprocating motion, and has driving plate to drive sample to be horizontally moved, this reality
It tests machine to load by counterweight, be loaded on the Weight box at top by choosing suitable counterweight, the weight of Weight box passes through load
Bar is transmitted to on abrading-ball, to realize the simulation to its specific operation, is surveyed by counterweight and the pull pressure sensor of installation
The size of frictional force when amount moves back and forth directly measures loading force by the pressure sensor on the upside of upper fixture
Size, the size of concentration of saline fog is measured by salt fog humidity sensor, driving plate is measured by laser displacement sensor
The size of reciprocation amplitude, the data of acquisition include loading force, displacement and frictional force, these data pass through data collecting card
Acquisition in real time, is sent to computer and does next step data processing.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Within protection scope of the present invention, therefore, protection scope of the present invention should be based on the protection scope of the described claims lid.
Claims (3)
1. a kind of vertical loading device for reciprocating corrosion fretting apparatus, it is characterised in that: including Weight box
(13) and load bar (9), Weight box (13) are fixedly connected on load bar (9) upper end, and load bar (9) side is fixedly connected on vertically
In linear guide (11), vertical lines bearing (11) is fixedly connected with pull pressure sensor (11) one end, pull pressure sensor (11)
The other end is fixedly connected on adapter (10), and adapter (10) is fixedly connected on support frame (2), and support frame (2) is fixed to be connected
It connects on pedestal (1), load bar (9) lower end is sequentially installed with pressure sensor (8) and upper fixture (7), load bar (9) and salt fog
Case keeps gap between (16).
2. a kind of vertical loading device for reciprocating corrosion fretting apparatus according to claim 1, special
Sign is: load bar (9) segmentum laterale passes through round telescopic (15) and is connected on salt fog cabinet (16) lateral surface.
3. a kind of vertical loading device for reciprocating corrosion fretting apparatus according to claim 1, special
Sign is: upper fixture (7) is step axle construction, and the upside step of upper fixture (7) is inserted into inside load bar (9) lower end, pressure
Sensor (8) covers on the upside step of upper fixture (7), and both ends of the surface bear against load bar (9) lower end surface and upside step
Through-hole is arranged in lower end surface, upper fixture (7) inner length, and spherical is arranged at through-hole lower end surface, places abrading-ball (30) at spherical,
Locking abrading-ball (30) is inserted into from through-hole upper end using lock-screw (29).
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| CN201910760564.8A CN110320126A (en) | 2019-08-16 | 2019-08-16 | A kind of vertical loading device for reciprocating corrosion fretting apparatus |
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| CN201910760564.8A CN110320126A (en) | 2019-08-16 | 2019-08-16 | A kind of vertical loading device for reciprocating corrosion fretting apparatus |
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Cited By (9)
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|---|---|---|---|---|
| CN110579418A (en) * | 2019-11-06 | 2019-12-17 | 合肥工业大学 | lever loading type friction wear testing machine capable of controlling magnetic field environment |
| CN110853697A (en) * | 2019-12-06 | 2020-02-28 | 浙江工业大学 | High-precision micro-motion displacement generating device |
| CN111912730A (en) * | 2020-07-15 | 2020-11-10 | 扬州市舜意机械有限公司 | Wear testing machine for self-lubricating gasket of joint bearing |
| CN112730049A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Stroke measuring method of reciprocating testing machine and reciprocating testing machine |
| CN113252486A (en) * | 2021-04-16 | 2021-08-13 | 同济大学 | Valve ball series-parallel connection loading driving device based on piezoelectric actuator |
| CN113376047A (en) * | 2021-07-05 | 2021-09-10 | 西南交通大学 | Rotary reciprocating friction testing machine |
| CN114062174A (en) * | 2021-11-22 | 2022-02-18 | 西安交通大学 | Micro-abrasion test device and method based on material testing machine |
| CN115078149A (en) * | 2022-08-22 | 2022-09-20 | 济南益华摩擦学测试技术有限公司 | High-frequency fretting corrosion wear testing machine |
| CN117169103A (en) * | 2023-09-06 | 2023-12-05 | 中航试金石检测科技(大厂)有限公司 | Ultrahigh temperature ceramic material corrosion test equipment |
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| CN112730049B (en) * | 2019-10-28 | 2024-04-02 | 中国石油化工股份有限公司 | Stroke measuring method of reciprocating type testing machine and reciprocating type testing machine |
| CN112730049A (en) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | Stroke measuring method of reciprocating testing machine and reciprocating testing machine |
| CN110579418A (en) * | 2019-11-06 | 2019-12-17 | 合肥工业大学 | lever loading type friction wear testing machine capable of controlling magnetic field environment |
| CN110853697A (en) * | 2019-12-06 | 2020-02-28 | 浙江工业大学 | High-precision micro-motion displacement generating device |
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Application publication date: 20191011 |