CN109387431A - It is a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time - Google Patents
It is a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time Download PDFInfo
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- CN109387431A CN109387431A CN201811071641.0A CN201811071641A CN109387431A CN 109387431 A CN109387431 A CN 109387431A CN 201811071641 A CN201811071641 A CN 201811071641A CN 109387431 A CN109387431 A CN 109387431A
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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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
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0033—Weight
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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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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Abstract
The invention discloses a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time, design bonding test specimen, can side window bonded joint to rail traffic vehicles carry out simulation test, and apply shear force on bonding test specimen, deformation test and shearing test are carried out to bonding test specimen, to obtain deformation situation and stress and deformation curve of the bonding test specimen under certain bonded adhesives thickness and certain static curing time.The present invention can simulate whether plastic deformation can occur when side window bonded joint is by maximum shearing force in practical transport process, but also whether the shearing force and deformation distance that bonded adhesives is born when can view below maximum shear stress in inflection curves are linear, it is able to confirm that out the transhipment time of bonded joint through the invention, technical guarantee and data supporting are provided for existing production technology, improves the service efficiency of platform position.
Description
Technical field
The present invention relates to rail traffics and adhesive technology field, especially a kind of for confirming that rail traffic vehicles connect
The detection method of head transhipment time.
Background technique
Currently, rail traffic vehicles need to wait for the entrance that can even move backward after 48 hours for 24 hours after the completion of side window is bonded
Next process carries out operation, the reason is that the construction of each main engine plants and reversing environment are different, adhesive producer can not be given
Determine the correct time of bonded joint transhipment, and only provides the cured rate of adhesive or the time being fully cured.To protect
The quality of bonded joint is demonstrate,proved, rail traffic vehicles bonded joint can only be first-class to be solidified in platform position.However bonded joint is in drying
In solidification process, platform position can not operation, can only wait in vain, it is low that this has also resulted in platform position utilization rate, vehicle production
Period is long, and production line production capacity is insufficient.Fractional orbital vehicular traffic factory is to shorten the waiting time, can be existed according to previous knowhow
10 hours progress reversing operations after the completion of bonding, whole process lack the demonstration of data and theory.In other words, rail traffic row
Industry needs a simple effective method to measure or confirm the transhipment time of vehicle bonded joint under specific environment.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide one kind for confirming that rail traffic vehicles bonded joint turns
Transport the time detection method, be able to confirm that out the transhipment time of bonded joint, for existing production technology provide technical guarantee with
Data supporting improves the service efficiency of platform position.
Technical solution used by the present invention solves the problems, such as it is:
It is a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time, which is characterized in that including with
Lower step:
Obtain side window bonded joint shearing force size F suffered in transport process；
The first sample plate, the second sample plate and bonded adhesives are obtained, and is tried in the first sample plate and second
It is bonded, is formed for simulating the bonding test specimen of side window bonded joint, and obtained using the bonded adhesives between sample plate
The thickness H of bonded adhesives between first sample plate and the second sample plate；
The bonding static solidification of test specimen is waited, and records the static curing time T of the bonding test specimen；
Deformation test is carried out to the bonding test specimen after static solidification, it is flat to the first sample of the bonding test specimen after static solidification
Plate is fixed, and the amount of force for applying certain time at the second sample plate is the pulling force of F, has applied static after pulling force
Certain time is placed, and detects the bonded adhesives deformation situation of bonding test specimen；
Shearing test is carried out to the bonding test specimen after static solidification, the first sample plate for being bonded test specimen is fixed to pulling force
The the second sample plate for being bonded test specimen is fixed to the second fixture of tensile testing machine, and is drawn by the first fixture of testing machine
Shearing is stretched, the curve that the shearing force that the bonded adhesives is born changes with stretching distance variation is obtained, bonded adhesives is calculated
The average shear force born.
Further, the first sample plate and the second sample plate are aluminium sheet, in the first sample plate and
Between second sample plate using bonded adhesives be bonded before it is further comprising the steps of: using sand paper to the first sample plate with
Second sample plate is polished to bonding region.
Further, the mesh number of the sand paper is 80 mesh.
Further, further comprising the steps of after using sand paper polishing: alcohol being dipped using non-woven fabrics and is tried first
Sample plate and the second sample plate are wiped and cleaned to bonding region, and are dried 10 minutes.
Further, further comprising the steps of after dipping alcohol wipe cleaning using non-woven fabrics: to be dipped in using sponge block
Take PrimeM coating material to the first sample plate and the second sample plate to bonding region, and dry 10 minutes.
Further, the bonded adhesives is the bonded adhesives of model Bostik7008.
Further, also in the two sides of bonded adhesives using the thickness of rubber sheet gasket adjustment bonded adhesives during bonding.
Further, the side window bonded joint shearing force size F suffered in transport process that obtains includes following
Step: the maximum force of side window bonded joint lead suffered in transport process is obtainedSide window gravity is vertical
The maximum force in directionWith the maximum force of transverse directionTo by formula?
Side window bonded joint peak load F suffered in transport process outIt closes, obtain the first sample plate and the second sample plate it
Between bonded adhesives in the length L of the gravity vertical direction and perimeter C of side window, then pass through formula F=k × FIt closes× L/C obtains side
Window bonded joint shearing force size F, the k suffered in transport process are safety coefficient.
Further, during the deformation test, apply the effect of certain time at the second sample plate
It is further comprising the steps of before the pulling force that power size is F: to mark in the side of the bonding test specimen both perpendicular to the first sample
The first straight line of plate, bonded adhesives and the second sample plate；It is further comprising the steps of after the static placement certain time:
It is described bonding test specimen side original mark first straight line position mark both perpendicular to the first sample plate, bonded adhesives and
The second straight line of second sample plate, judges whether first straight line and second straight line are overlapped, and is bonded examination described in surface if being overlapped
The deformational behavior of part is elastic deformation, and the deformational behavior that test specimen is otherwise bonded described in surface is plastic deformation.
Further, during the shearing test, the tensile speed in tensile shear is 50mm/min.
The beneficial effects of the present invention are: when one kind that the present invention uses is used to confirm the transhipment of rail traffic vehicles bonded joint
Between detection method, design bonding test specimen, can side window bonded joint to rail traffic vehicles carry out simulation test, and
Apply shear force on bonding test specimen, deformation test and shearing test are carried out to bonding test specimen, exists to obtain bonding test specimen
Certain bonded adhesives thickness and deformation situation and stress and deformation curve under certain static curing time.The present invention can simulate
Whether plastic deformation can occur when side window bonded joint is by maximum shearing force in practical transport process out, but also can
Whether the shearing force and deformation distance that bonded adhesives is born when viewing below maximum shear stress in inflection curves are linear
Relationship is able to confirm that out the transhipment time of bonded joint through the invention, provides technical guarantee sum number for existing production technology
According to support, the service efficiency of platform position is improved.
Detailed description of the invention
The invention will be further described with example with reference to the accompanying drawing.
Fig. 1 is that the present invention is a kind of for confirming the process of the detection method of rail traffic vehicles bonded joint transhipment time
Figure；
Fig. 2 is a kind of detection method for confirming rail traffic vehicles bonded joint transhipment time of the present invention about bonding
The front section view of test specimen；
Fig. 3 is a kind of detection method for confirming rail traffic vehicles bonded joint transhipment time of the present invention about bonding
The top view of the first embodiment of test specimen；
Fig. 4 is a kind of detection method for confirming rail traffic vehicles bonded joint transhipment time of the present invention about bonding
The top view of the second embodiment of test specimen；
Fig. 5 is a kind of detection method for confirming rail traffic vehicles bonded joint transhipment time of the present invention about bonding
The curve graph when shearing test of test specimen.
Specific embodiment
- Fig. 5 referring to Fig.1, of the invention is a kind of for confirming the detection side of rail traffic vehicles bonded joint transhipment time
Method, comprising the following steps:
S1: side window bonded joint shearing force size F suffered in transport process is obtained；It can be connect according to side window
The head active force of all directions and the weight of side window suffered in transport process were being transported to calculate side window bonded joint
Suffered maximum shear stress F in journey.
S2: the first sample plate 100, the second sample plate 200 and bonded adhesives 300 are obtained, and in first sample
It is bonded, is formed for simulating side window bonding using the bonded adhesives 300 between plate 100 and the second sample plate 200
The bonding test specimen of connector, and obtain the thickness H of the bonded adhesives 300 between the first sample plate 100 and the second sample plate 200；
Referring to Fig. 3-5, the length and width of the side window bonded joint of vehicle are respectively 25mm × 18.5mm in actual production, therefore simulate and make
The length and width dimensions of 300 part of bonded adhesives are also accordingly 25mm × 18.5mm, while setting the thickness of bonded adhesives 300 to
The thickness parameter of bonded adhesives 300 is carried out subsequent test comparison by 12mm and two groups of 7.5mm.In the present embodiment, adopt
It is tested with 30 groups of bonding test specimen, wherein the bonded adhesives 300 of 15 (1#~15#) bonding test specimens is with a thickness of 12mm, another 15
A (16#~30#) is bonded the bonded adhesives 300 of test specimen with a thickness of 7.5mm.
S3: waiting the bonding static solidification of test specimen, and records the static curing time T of the bonding test specimen；After the completion of bonding,
Using clip fixed bonding test specimen, wherein 1#~5# and 16#~20# is placed on static solidification 6 hours under site environment, and 6#~
10# and 21#~25# is placed on static solidification 8 hours under site environment, and 11#~15# and 26#~30# are placed under site environment
Static solidification 10 hours, the present invention, will also be static other than the thickness parameter of bonded adhesives 300 is carried out test comparison as variable
Curing time carries out test comparison as another variable.
S4: carrying out deformation test to the bonding test specimen after static solidification, the first examination to the bonding test specimen after static solidification
Sample plate 100 is fixed, and the amount of force for applying certain time at the second sample plate 200 is the pulling force of F, has applied
Static placement certain time after pulling force, and detect the 300 deformation situation of bonded adhesives of bonding test specimen；The present invention can be simulated in reality
Whether plastic deformation can occur when maximum shear stress F of the side window bonded joint by a period of time in the transport process of border, work as bonding
When the 300 deformation situation of bonded adhesives of test specimen is elastic deformation, then thickness H and static solidification of the surface in corresponding bonded adhesives 300
Bonded adhesives 300 is able to bear the maximum shear stress F in practical transport process under time T；When 300 deformation of bonded adhesives of bonding test specimen
When situation is plastic deformation, then bonded adhesives 300 cannot at the thickness H and static curing time T of corresponding bonded adhesives 300 on surface
Bear the maximum shear stress F in practical transport process.
S5: carrying out shearing test to the bonding test specimen after static solidification, and the first sample plate 100 for being bonded test specimen is fixed
To the first fixture of tensile testing machine, the second sample plate 200 for being bonded test specimen is fixed to the second fixture of tensile testing machine,
And tensile shear is carried out, it obtains the curve that the shearing force that the bonded adhesives 300 is born changes with stretching distance variation, calculates
Obtain the average shear force that bonded adhesives 300 is born.After 30 groups of tests, bonded adhesives 300 can be obtained in different bonding glue 300
Average shear force and average shear strength corresponding to thickness H and static curing time T, as shown in table 1:
Table 1
From the data of table 1 it is found that average shear force and average shear with the increase bonding test specimen of static curing time T are strong
Degree is all increasing；In static curing time T, 300 thickness H of bonded adhesives is that the average shear strength of the bonding test specimen of 7.5mm is wanted
Higher than the bonding test specimen that 300 thickness H of bonded adhesives is 12mm, the reason is that the bonding test specimen that 300 thickness H of bonded adhesives is 7.5mm
300 thickness of bonded adhesives is smaller, and glue layer is easier to solidify.
The present invention uses a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time, designs
Be bonded test specimen, can side window bonded joint to rail traffic vehicles carry out simulation test, and apply shearing on bonding test specimen
Active force carries out deformation test and shearing test to bonding test specimen, to obtain bonding test specimen in certain 300 thickness of bonded adhesives
With the deformation situation and stress and deformation curve under certain static curing time.The present invention can be simulated in practical transport process
Plastic deformation whether can occur when middle side window bonded joint is by maximum shearing force, but also can be checked in inflection curves
Whether the shearing force and deformation distance that bonded adhesives 300 is born when to below maximum shear stress are linear, by this hair
The bright transhipment time for being able to confirm that out bonded joint provides technical guarantee and data supporting for existing production technology, improves
The service efficiency of platform position.
Further, the first sample plate 100 and the second sample plate 200 are aluminium sheet, in first sample
It is further comprising the steps of before being bonded between plate 100 and the second sample plate 200 using bonded adhesives 300: using sand paper
To polishing to bonding region for the first sample plate 100 and the second sample plate 200.It needs using the first examination of sand paper polishing
Sample plate 100 and the second sample plate 200 to bonding region, be polishing to metal true qualities, mattness.
Further, the mesh number of the sand paper is 80 mesh.
Further, further comprising the steps of after using sand paper polishing: alcohol being dipped using non-woven fabrics and is tried first
Sample plate 100 and the second sample plate 200 are wiped and cleaned to bonding region, and are dried 10 minutes.It must be along one when cleaning
A direction wiping, must not back and forth wipe, it is ensured that region surface to be glued cleans, is dry, free from dust, grease and other condensates.
Further, further comprising the steps of after dipping alcohol wipe cleaning using non-woven fabrics: to be dipped in using sponge block
Take PrimeM coating material to the first sample plate 100 and the second sample plate 200 to bonding region, and dry 10 minutes.
It smearing and smears once in one direction, Bao Yuehao is got in primary coat, sufficiently covering bonding plane, and it is not show-through, form full coating.
Further, the bonded adhesives 300 is the bonded adhesives 300 of model Bostik7008.
Further, bonded adhesives 300 is also adjusted using rubber sheet gasket 400 in the two sides of bonded adhesives 300 during bonding
Thickness.Bonded adhesives 300 is beaten in bonding region using manual glue rifle, bonded adhesives 300 should be extruded into triangle, and use rubber sheet gasket
400 adjustment bondline thickness.
Further, the side window bonded joint shearing force size F suffered in transport process that obtains includes following
Step: the maximum force of side window bonded joint lead suffered in transport process is obtainedSide window gravity is vertical
The maximum force in directionWith the maximum force of transverse directionTo by formula?
Side window bonded joint peak load F suffered in transport process outIt closes, obtain the first sample plate 100 and the second sample be flat
Bonded adhesives 300 between plate 200 in the length L of the gravity vertical direction and perimeter C of side window, then pass through formula F=k × FIt closes×
L/C show that side window bonded joint shearing force size F, the k suffered in transport process are safety coefficient.In transport process
Loading analysis mainly consider the active force of leadWith the active force of side window gravity vertical directionWhereinIt can pass through
The peak acceleration of tractor obtains, in additionAccording to BSEN12663-1-2010 " railway applications-railroad car
Structural requirement part 1 locomotive and passenger stock (and a kind of selection method of lorry) " peak acceleration known to the 6.5.2 articles
For 3g.Because in transport process without bend, without meeting, non-tunnel, so the maximum force of transverse directionDo not consider.Bonding connects
The peak acceleration for the lead that head is subject in transport process is 0.2m/s2, and the maximum of side window gravity vertical direction accelerates
Degree is 3g=24.9m/s2, since the acceleration of side window gravity vertical direction is much larger than the acceleration of lead, is added so closing
Speed a=24.9m/s2.Side window weight m=63kg, so calculate maximum load be FIt closes=m × a=1569N.The bonding
The load that test specimen should be subject to is F=k × FIt closes× L/C=12N, according to the actual situation, wherein safety coefficient k takes 1.5, the week of side window
Long C takes 4804mm, and bonded adhesives 300 takes 25mm in the length L of gravity vertical direction, i.e., what is applied in deformational behavior test process holds
Continuous effect is 12N.
Further, during the deformation test, apply the work of certain time at the second sample plate 200
It is further comprising the steps of before the pulling force that firmly size is F: to be tried in the side mark of the bonding test specimen both perpendicular to first
The first straight line of sample plate 100, bonded adhesives 300 and the second sample plate 200；It is also wrapped after the static placement certain time
Include following steps: flat both perpendicular to the first sample in the position mark of original mark first straight line of the bonding test specimen side
The second straight line of plate 100, bonded adhesives 300 and the second sample plate 200, judges whether first straight line and second straight line are overlapped, if
The deformational behavior for being overlapped bonding test specimen described in then surface is elastic deformation, and the deformational behavior that test specimen is otherwise bonded described in surface is modeling
Property deformation.A first straight line is drawn perpendicular to lower edge in the intermediate region of bonding test specimen using set square and marking pen, simultaneously
The one end for being bonded test specimen is clipped on the fixture of tensile testing machine, the other end hangs up the counterweight (Mg=12N) that quality is M.2min
Counterweight and bonding test specimen are removed after (transport process duration), after being bonded test specimen and standing 1min, are existed using three solution plates and marking pen
The same position for being bonded test specimen draws a second straight line, and straight line is also perpendicular to lower edge.Visual detection first straight line and second
Whether straight line is completely coincident, if be completely coincident, illustrates the deformational behavior flexible deformation for being bonded test specimen, if there is deviateing, then
Illustrate that being bonded test specimen occurs viscoelastic deformation or viscous yielding (plastic deformation).
Further, during the shearing test, the tensile speed in tensile shear is 50mm/min.
Referring to Fig. 5, the present invention it is a kind of for confirm the detection method of rail traffic vehicles bonded joint transhipment time about
Be bonded test specimen shearing test when curve graph, the bonding test specimen dry 6h, 8h, 10h after, when below 12N pulling force its
Deformational behavior is flexible deformation, is reversible, and will not be impacted to the later strength of bonding test specimen.And test result is shown
The shear strength for destroying test is all larger than 12N, and shear strength is greater than 0.03MPa.When now vehicle produces simultaneously, all side windows and preceding shelves
If wind glass has bolt stem to be fastened, therefore the influence of vehicle transhipment butt joint is just smaller.Therefore, regulation 8 is small in project
When after can carry out vehicle transhipment be it is feasible, on side window bonded joint not will cause quality influence.
The above, only presently preferred embodiments of the present invention, the invention is not limited to above embodiment, as long as
It reaches technical effect of the invention with identical means, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time, which is characterized in that including following
Step:
Obtain side window bonded joint shearing force size F suffered in transport process；
The first sample plate (100), the second sample plate (200) and bonded adhesives (300) are obtained, and flat in first sample
It is bonded, is formed for simulating side window using the bonded adhesives (300) between plate (100) and the second sample plate (200)
The bonding test specimen of bonded joint, and obtain the bonded adhesives between the first sample plate (100) and the second sample plate (200)
(300) thickness H；
The bonding static solidification of test specimen is waited, and records the static curing time T of the bonding test specimen；
Deformation test is carried out to the bonding test specimen after static solidification, to the first sample plate of the bonding test specimen after static solidification
(100) it is fixed, the amount of force for applying certain time at the second sample plate (200) is the pulling force of F, has applied drawing
Static placement certain time after power, and detect bonded adhesives (300) deformation situation of bonding test specimen；
Shearing test is carried out to the bonding test specimen after static solidification, the first sample plate (100) for being bonded test specimen is fixed to drawing
The the second sample plate (200) for being bonded test specimen is fixed to the second fixture of tensile testing machine by the first fixture of force tester, and
Tensile shear is carried out, the curve that the shearing force that the bonded adhesives (300) is born changes with stretching distance variation is obtained, calculates
Obtain the average shear force that bonded adhesives (300) is born.
2. it is according to claim 1 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: the first sample plate (100) and the second sample plate (200) they are aluminium sheet, it is flat in first sample
It is further comprising the steps of before being bonded between plate (100) and the second sample plate (200) using bonded adhesives (300): to use
Sand paper is polished to bonding region the first sample plate (100) and the second sample plate (200).
3. it is according to claim 2 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: the mesh number of the sand paper is 80 mesh.
4. it is according to claim 2 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: further comprising the steps of after using sand paper polishing: dipping alcohol to the first sample plate using non-woven fabrics
(100) it wipes and cleans, and dries 10 minutes to bonding region with second sample plate (200).
5. it is according to claim 4 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: further comprising the steps of after dipping alcohol wipe cleaning using non-woven fabrics: being dipped using sponge block
PrimeM coating material to the first sample plate (100) and the second sample plate (200) to bonding region, and it is dry 10 points
Clock.
6. it is according to claim 1 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: the bonded adhesives (300) is the bonded adhesives (300) of model Bostik7008.
7. it is according to claim 1 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: also in the two sides of bonded adhesives (300) using rubber sheet gasket (400) adjustment bonded adhesives (300) during bonding
Thickness.
8. it is according to claim 1 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: the side window bonded joint shearing force size F suffered in transport process that obtains is the following steps are included: obtain
The maximum force for the lead for taking side window bonded joint suffered in transport processSide window gravity vertical direction is most
Noticeable effortWith the maximum force of transverse directionTo by formula Show that side window is viscous
Connector peak load F suffered in transport processIt closes, obtain the first sample plate (100) and the second sample plate (200)
Between bonded adhesives (300) in the length L of the gravity vertical direction and perimeter C of side window, then pass through formula F=k × FIt closes×L/C
Show that side window bonded joint shearing force size F, the k suffered in transport process are safety coefficient.
9. it is according to claim 1 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: applying the active force of certain time at the second sample plate (200) during the deformation test
It is further comprising the steps of before the pulling force that size is F: flat both perpendicular to the first sample in the side mark of the bonding test specimen
The first straight line of plate (100), bonded adhesives (300) and the second sample plate (200)；After the static placement certain time also
The following steps are included: marking in the position of original mark first straight line of the bonding test specimen side both perpendicular to the first sample
The second straight line of plate (100), bonded adhesives (300) and the second sample plate (200) judges whether are first straight line and second straight line
It is overlapped, the deformational behavior of bonding test specimen described in surface is elastic deformation if being overlapped, and the deformation of test specimen is otherwise bonded described in surface
Behavior is plastic deformation.
10. it is according to claim 1 a kind of for confirming the detection method of rail traffic vehicles bonded joint transhipment time,
It is characterized by: the tensile speed in tensile shear is 50mm/min during the shearing test.
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| CN201811071641.0A CN109387431B (en) | 2018-09-13 | 2018-09-13 | Detection method for confirming transit time of rail transit vehicle adhesive joint |
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| CN201811071641.0A CN109387431B (en) | 2018-09-13 | 2018-09-13 | Detection method for confirming transit time of rail transit vehicle adhesive joint |
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| CN109387431A true CN109387431A (en) | 2019-02-26 |
| CN109387431B CN109387431B (en) | 2021-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088495A (en) * | 2021-11-25 | 2022-02-25 | 北京理工大学 | Glue system appearance structure |
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