CN107036965A - Coating/matrix composite interface bond strength measurement apparatus and method - Google Patents
Coating/matrix composite interface bond strength measurement apparatus and method Download PDFInfo
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- CN107036965A CN107036965A CN201710384311.6A CN201710384311A CN107036965A CN 107036965 A CN107036965 A CN 107036965A CN 201710384311 A CN201710384311 A CN 201710384311A CN 107036965 A CN107036965 A CN 107036965A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 199
- 238000000576 coating method Methods 0.000 title claims abstract description 199
- 239000011159 matrix material Substances 0.000 title claims abstract description 165
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000005259 measurement Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 89
- 230000001360 synchronised effect Effects 0.000 claims abstract description 88
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000005303 weighing Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000007405 data analysis Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000013480 data collection Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000013139 quantization Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QFUKUPZJJSMEGE-UHFFFAOYSA-N 5-(hydroxymethyl)-1-(3-methylbutyl)pyrrole-2-carbaldehyde Chemical compound CC(C)CCN1C(CO)=CC=C1C=O QFUKUPZJJSMEGE-UHFFFAOYSA-N 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of coating/matrix composite interface bond strength measurement apparatus and method, its device includes testing machine, acquisition and control system and test sample clamping mechanism, testing machine includes frame, moving beam, leading screw and actuating unit, and actuating unit includes motor, belt wheel axle bed, synchronous tape spool, the first synchronous pulley, the second synchronous pulley, the 3rd synchronous pulley, the 4th synchronous pulley, the first timing belt and the second timing belt；Test sample clamping mechanism includes dial, upper roller, support holder device, coating clamper, weighing sensor, lower roll, the first displacement transducer and second displacement sensor；Acquisition and control system includes computer, data collecting card and motor driving card；Its method includes step：First, the installation of tested sample；2nd, apply pressure to tested sample and carry out data acquisition；3rd, Data Analysis Services.The present invention realizes the measurement of the quantization to coating/matrix composite interface bond strength, and application value is high.
Description
Technical field
The invention belongs to composite material interface adhesion measurement technical field, and in particular to a kind of coating/matrix is combined
Material interface adhesion measurement device and method.
Background technology
Coating/matrix composite is widely used in many fields, is applied on the surface of matrix after last layer coating not
Matrix can be only protected, can be with the wearability, corrosion resistance and case hardness of reinforcing material.Combined between coating and matrix material
Stripping, cracking of layer etc. are the main failure forms of this composite, so interface bond strength is to characterize composite matter
One important indicator of amount.Due to the diversity and complexity of coating/matrix composite system, do not formed also so far suitable
In the standard method for the interface bond strength for measuring this kind of material.At present, it is commonly used to measure the interface of coating/matrix composite
The method of bond strength has：Pulling method, shearing method and scarification etc..
Pulling method is advantageous in that can accurately measure the interface cohesion of coating/matrix composite with quantification
Intensity, but the collected values of bond strength surveyed has certain limitation, is generally less than 90MPa because this method need to use it is viscous
Agent is tied, and requires that the interface bond strength of coating/matrix composite must be smaller than the adhesion strength of binding agent.
Shearing method is usually used in measuring the interface bond strength of the thicker composite of coating, the work of the coating of protrusion in load
It is cut away under.But this method is disadvantageous in that close to the interface of coating free boundary there is stress concentration, is
Reduction stress concentration, can precast groove to reduce stress concentration on sample, precast groove and add measurement process again
Complexity.
Scarification is a kind of measuring method of sxemiquantitative, is only adapted to measurement ganoine thin film coating/matrix composite
Interface bond strength, this method is, with a diamond class hard material pin, to stand in coating surface, repeatedly scratch coating table
Face, the interface bond strength of coating/matrix composite is measured by the coating of scuffing, and this method is although easy to operate, but
Still lack the theoretical foundation of science, influenceed larger by enchancement factor, and be suitable only for coating layer thickness answering less than 50 μm
Condensation material.
Except it is described above these measurement or evaluate coating/basal body interface bond strength method in addition to, also plunging,
Adhesive tape method and laser tomography etc..But these methods all have some limitations, such as complicated, the used examination of operating process
Equipment costliness is tested, the preparation of sample is difficult, and measured result only can qualitatively judge bond strength, and the scope of application has limitation
Property etc..
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of structure letter
Singly, modern design is reasonable, realize the quantization measurement to coating/matrix composite interface bond strength, the mesh of measurement result one
It is clear, coating/matrix composite interface bond strength measurement that practical, using effect is good, application value is high is filled
Put.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of coating/matrix composite interface knot
Close strength meter, it is characterised in that：Including testing machine and acquisition and control system, and on testing machine and
Test sample clamping mechanism for clamping tested sample；The tested sample is made up of matrix with the coating for being arranged on base bottom,
The width of the coating is equal with the width of matrix, and the length of the coating is less than the length of matrix；
The frame of the testing machine including doorframe shape, the moving beam being arranged in frame and it is arranged on the dynamic of bottom of the frame
The actuating unit for driving moving beam to move up and down is provided with power case, the headstock；The left and right sides of the frame
It is mounted on leading screw, two leading screws being mounted on feed screw nut in column, the two ends of the moving beam are respectively with two
The individual feed screw nut is fixedly connected；The actuating unit includes the motor and belt wheel axle bed being arranged in headstock, the band
It is rotatably connected on axle block and passes synchronous tape spool outside belt wheel axle bed upper and lower ends respectively, on the output shaft of the motor
The first synchronous pulley is fixedly connected with, the upper end of the synchronous tape spool is fixedly connected with the second synchronous pulley, the synchronous tape spool
Lower end be fixedly connected with the 3rd synchronous pulley, the bottom of two leading screws has been fixedly connected with the 4th synchronous pulley, two
4th synchronous pulley is symmetrical arranged, and bridging has the first timing belt on first synchronous pulley and the second synchronous pulley, and described the
Bridging has the second timing belt on three synchronous pulleys and two the 4th synchronous pulleys；
The test sample clamping mechanism includes the dial being arranged at the top of headstock and is lifted on the upper of moving beam bottom
Roller, and support holder device for the matrix that clamps tested sample and for the coating clamping for the coating for clamping tested sample
Device；It is provided with and is detected for the pressure being applied to upper roller in tested sample between the upper roller and the bottom surface of moving beam
Weighing sensor, be fixedly connected with sensor stand at the top of the dial and two be symmetricly set on upper roller both sides and use
It is described in being provided with the scale for indicating lower roll present position on the lower roll of support tested sample, the side wall of the dial
It is fixedly connected with sensor stand for detecting the displacement of matrix at the stress point position that matrix is contacted with support holder device
The second of the displacement of coating at first displacement transducer and stress point position for detecting coating and coating clamp contact
Displacement sensor, the top of first displacement transducer is in contact with support holder device, the top of the second displacement sensor
It is in contact with coating clamper；
The data collecting card and motor that the acquisition and control system includes computer and connect on computers drive
Dynamic card, the output end of the output end of the weighing sensor, the output end of the first displacement transducer and second displacement sensor is equal
It is connected with the input of data collecting card, the motor is connected with the output end of motor driving card.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：The left and right of the frame
The guide pillar set with leading screw parallel interval is mounted in two heel posts, the two ends of the moving beam are each passed through two and led
Post.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：The left and right of the frame
Be mounted on the dustproof shade for leading screw and guide pillar being covered in the column on two heel post medial surfaces.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：The sensor stand
Be shaped as U-shaped, the sensor stand is fixedly connected on the top of dial by two the first soket head cap screws, accordingly
The unthreaded hole that two soket head cap screws of confession first are passed through is provided with the bottom surface of the sensor stand；First displacement transducer
It is fixedly connected on by four the second soket head cap screws on the side side of sensor stand, the one of the corresponding sensor stand
The screwed hole that four soket head cap screws of confession second are passed through is provided with the side of side；The second displacement sensor passes through four the 3rd
Soket head cap screw is fixedly connected on the opposite side side of sensor stand, on the opposite side side of the corresponding sensor stand
It is provided with the screwed hole that four soket head cap screws of confession the 3rd are passed through.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：Described matrix clamper
Including the support holder block for being laterally stuck on the matrix of tested sample and for being screwed on support holder block and for fastening
The matrix trip bolt of support holder block and matrix, the side side of corresponding described matrix grip block is provided with fastens spiral shell for matrix
Follow closely through screwed hole, the side side relative with setting matrix trip bolt is fixedly connected with matrix on described matrix grip block
Grip block elongation bar, described matrix grip block elongation bar is in contact with the top of the first displacement transducer.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：The coating clamper
Including the coating grip block for being laterally stuck on the coating of tested sample and for being screwed on coating grip block and for fastening
The coating trip bolt of coating grip block and coating, the side side of the corresponding coating grip block is provided with fastens spiral shell for coating
Follow closely through screwed hole, the side side relative with setting coating trip bolt is fixedly connected with coating on the coating grip block
Grip block elongation bar, the coating grip block elongation bar is in contact with the top of second displacement sensor.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：The weighing sensor
Model PSD-10TSJTH.
Above-mentioned coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：First displacement is passed
Sensor and second displacement sensor are KTR self-recovering type linear displacement transducers.
The invention also discloses a kind of method and step it is simple, realize to coating/matrix composite interface bond strength
Quantization measurement, measurement result is very clear, practical, using effect is good, application value is high coating/matrix is combined
Material interface adhesion measurement method, it is characterised in that this method comprises the following steps：
Step 1: the installation of tested sample：First, support holder device is clamped on the matrix of tested sample, and will applied
Layer gripper makes stress point position and coating and painting that matrix contacts with support holder device on the coating of tested sample
The stress point position of layer clamp contact is on same vertical curve；Then, the matrix one side for making tested sample upward, is applied laminated
Down, the entirety of tested sample, support holder device and coating clamper is placed on two lower rolls, and makes support holder device and
The top of one displacement transducer is in contact, and coating clamper and the top of second displacement sensor is in contact, makes upper roller and quilt
The contacting points position of test specimens is located at the center position of matrix；
Step 2: applying pressure to tested sample and carrying out data acquisition：Computer is operated, starts measurement, computer leads to
The rotation of motor driving card motor is crossed, when the motor is rotated, drives the first synchronous pulley to rotate, the first synchronous pulley passes through
First timing belt drives the second synchronous pulley to rotate, and the second synchronous pulley drives synchronous tape spool to rotate, and synchronous tape spool drives the 3rd
Synchronous pulley is rotated, and the 3rd synchronous pulley drives two the 4th synchronous pulley synchronous axial systems by the second timing belt, described in two
4th synchronous pulley drives two screw synchronous to rotate, when leading screw is rotated, and drives moving beam downward by the feed screw nut
It is mobile, when moving beam is moved down, drive upper roller to move down, when upper roller is moved into contact with the position of tested sample,
The pressure that upper roller is applied in tested sample is produced suddenly, and the pressure that weighing sensor is applied to upper roller in tested sample is carried out
Detect in real time and by the signal output detected to data collecting card, the first displacement transducer is contacted to matrix with support holder device
Stress point position at matrix displacement carry out in real time detection and by the signal output detected to data collecting card, second displacement
Displacement of the sensor to coating at the stress point position of coating and coating clamp contact carries out detection in real time and will detected
Signal output is to data collecting card, and pressure value, matrix and the matrix that data collecting card collection upper roller is applied in tested sample are pressed from both sides
The shift value and coating of matrix and coating at the stress point position of coating clamp contact at the stress point position of holder contact
Exported after shift value to computer, after the pressure value that upper roller is applied in tested sample reaches default pressure initial value F ',
The angle, θ that computer start recording is turned over by motor driving card motor, according to formulaCalculate
The displacement Y of matrix to the stress point position of upper roller and substrate contact, and just record a upper roller every time Δ t and be applied to
Pressure value F, upper roller in tested sample and at the stress point position of substrate contact matrix displacement Y, matrix and support holder
The shift value R and coating and coating at the stress point position of coating clamp contact of matrix position at the stress point position of device contact
Shifting value S；Wherein, z1For the number of teeth of the first synchronous pulley, z2For the number of teeth of the second synchronous pulley, z3For the tooth of the 3rd synchronous pulley
Number, z4For the number of teeth of the 4th synchronous pulley, p is the helical pitch of leading screw；
Step 3: Data Analysis Services：First, computer is according to formula α=arctan [(S+h-R)/L]-arctan (h/
L the peel angle α for obtaining matrix and coating) is calculated；Then, computer is using Y as transverse axis, and α is the longitudinal axis, draws out the song that α changes with Y
Line chart, and using Y as transverse axis, F is the longitudinal axis, draws out the curve map that F changes with Y；Finally, the curve that computer first changes in α with Y
The value for the corresponding Y of point that α gradually increases since 0 is found on figure and critical stripping displacement Y0 is designated as, then the song changed in F with Y
The corresponding F of critical stripping displacement Y0 value is found on line chart and critical stripping pressure F0 is designated as；Wherein, h is that matrix is pressed from both sides with matrix
Initial distance between the stress point position and coating and the stress point position of coating clamp contact of holder contact, L is upper roller
The stress point position and coating contacted with the contacting points position of tested sample to matrix with support holder device connects with coating clamper
The horizontal range of vertical curve where tactile stress point position.
Above-mentioned method, it is characterised in that：The value of F ' described in step 2 is 5N~15N, Δ t described in step 2
Value is 10ms~100ms.
The present invention has advantages below compared with prior art：
1st, coating of the present invention/matrix composite interface bond strength measurement apparatus is simple in construction, novel in design reasonable, makes
With easy to operate.
2nd, the present invention can measure the peel angle α of the matrix for obtaining tested sample and coating, it is critical stripping displacement Y0, critical
The curve map that pressure F0, α change with the Y curve maps changed and F with Y is peeled off, is realized to coating/matrix composite interface knot
The quantization measurement of intensity is closed, and measured amount can quantitatively reflect coating/matrix composite interface bond strength.
3rd, the method and step of coating of the present invention/matrix composite interface bond strength measuring method is simple, measurement result
It can show on computers, be easy to storage and check in the future, and measurement result is very clear.
4th, the measurement accuracy of coating of the present invention/matrix composite interface bond strength measurement apparatus is high, functional reliability
Height, and it is not susceptible to failure.
5th, the processing and fabricating of test sample clamping mechanism of the present invention is convenient, suitable for producing in enormous quantities so that the coating/matrix is combined
Material interface adhesion measurement device is easy to promote the use of.
6th, the present invention's is practical, and using effect is good, and application value is high.
In summary, modern design of the invention rationally, is realized to coating/matrix composite interface bond strength
Quantify measurement, measurement result is very clear, and practical, using effect is good, application value is high.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the stereogram of coating of the present invention/matrix composite interface bond strength measurement apparatus.
Fig. 2 is Fig. 1 front view.
Fig. 3 is Fig. 1 A-A sectional views.
Fig. 4 is the structural representation of tested sample of the present invention.
Fig. 5 is the stereogram of test sample clamping mechanism of the present invention.
Fig. 6 is Fig. 5 front view.
Fig. 7 is annexation schematic diagram of the test sample clamping mechanism of the present invention in addition to upper roller.
Fig. 8 is the structural representation of support holder device of the present invention.
Fig. 9 is the structural representation of coating clamper of the present invention.
Figure 10 is the schematic block circuit diagram of acquisition and control system of the present invention.
Figure 11 is the method flow block diagram of coating of the present invention/matrix composite interface bond strength measuring method.
View when Figure 12 i.e. will be peeling-off with coating for the matrix of tested sample of the present invention.
Views of the Figure 13 for the matrix and coating of tested sample of the present invention after peeling-off.
Figure 14 is the curve map that α changes with Y.
Figure 15 is the curve map that F changes with Y.
Description of reference numerals:
1-tested sample；1-1-matrix；1-2-coating；
2-1-frame；2-2-guide pillar；2-3-moving beam；
2-4-leading screw；2-5-dustproof shade；The synchronous pulleys of 2-6-second；
The timing belts of 2-7-first；2-8-belt wheel axle bed；The synchronous pulleys of 2-9-the 4th；
The synchronous pulleys of 2-10-the 3rd；The timing belts of 2-11-second；2-12-motor；
2-13-synchronization tape spool；The synchronous pulleys of 2-14-first；3-lower roll；
4-dial；5-upper roller；The displacement transducers of 6-1-first；
6-2-second displacement sensor；7-coating clamper；7-1-coating grip block；
7-2-coating trip bolt；7-3-coating grip block elongation bar；8-support holder device；
8-1-support holder block；8-2-matrix trip bolt；8-3-support holder block elongation bar；
9-sensor stand；10-headstock；The soket head cap screws of 11-1-first；
The soket head cap screws of 11-2-second；The soket head cap screws of 11-3-the 3rd；12-computer；
13-data collecting card；14-motor driving card；15-weighing sensor.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, coating of the invention/matrix composite interface bond strength measurement apparatus, including
Testing machine and acquisition and control system, and the specimen clamping machine on testing machine and for clamping tested sample 1
Structure；As shown in figure 4, the tested sample 1 is made up of matrix 1-1 with the coating 1-2 for being arranged on matrix 1-1 bottoms, the coating
1-2 width is equal with matrix 1-1 width, and the length of the coating 1-2 is less than matrix 1-1 length；
As shown in Figure 1, Figure 2 and Figure 3, frame 2-1 of the testing machine including doorframe shape, the shifting being arranged on frame 2-1
It is provided with dynamic crossbeam 2-3 and the headstock 10 for being arranged on frame 2-1 bottoms, the headstock 10 for driving moving beam 2-
3 actuating units moved up and down；Leading screw 2-4, two leading screw 2- are mounted in the left and right sides column of the frame 2-1
Feed screw nut is mounted on 4, the two ends of the moving beam 2-3 are fixedly connected with two feed screw nuts respectively；It is described
Actuating unit includes rotating connection on motor 2-12 and belt wheel axle bed 2-8, the belt wheel axle bed 2-8 in headstock 10
Have and pass synchronous tape spool 2-13 outside belt wheel axle bed 2-8 upper and lower ends respectively, it is fixed on the output shaft of the motor 2-12
The upper end for being connected with the first synchronous pulley 2-14, the synchronous tape spool 2-13 is fixedly connected with the second synchronous pulley 2-6, described same
Step tape spool 2-13 lower end is fixedly connected with the 3rd synchronous pulley 2-10, and two leading screw 2-4 bottom has been fixedly connected with
4th synchronous pulley 2-9, two the 4th synchronous pulley 2-9 are symmetrical arranged, the first synchronous pulley 2-14 and the second timing belt
Bridging has to bridge on the first timing belt 2-7, the 3rd synchronous pulley 2-10 and two the 4th synchronous pulley 2-9 and had on wheel 2-6
Second timing belt 2-11；
With reference to Fig. 5 and Fig. 6, the test sample clamping mechanism includes being arranged on the dial 4 at the top of headstock 10 and is lifted on
The upper roller 5 of moving beam 2-3 bottoms, and support holder device 8 for the matrix 1-1 that clamps tested sample 1 and for clamping
The coating 1-2 of tested sample 1 coating clamper 7；Be provided between the upper roller 5 and moving beam 2-3 bottom surface for pair
The weighing sensor 15 that the pressure that upper roller 5 is applied in tested sample 1 is detected, the top of the dial 4 is fixedly connected
There is a sensor stand 9 and two are symmetricly set on the both sides of upper roller 5 and the lower roll 3 for supporting tested sample 1, the dial 4
Side wall on be provided with scale for indicating the present position of lower roll 3, the sensor stand 9 and be fixedly connected with for detecting
First displacement transducer 6-1 of matrix 1-1 displacement and it is used at the stress point position that matrix 1-1 is contacted with support holder device 8
The second displacement sensor 6-2 of coating 1-2 displacement, institute at the stress point position that detection coating 1-2 is contacted with coating clamper 7
The top for stating the first displacement transducer 6-1 is in contact with support holder device 8, the top of the second displacement sensor 6-2 and painting
Layer clamper 7 is in contact；
As shown in Figure 10, the acquisition and control system includes computer 12 and connects data on the computer 12
Capture card 13 and motor driving card 14, the output end of the weighing sensor 15, the first displacement transducer 6-1 output end and
Input of the two displacement transducer 6-2 output end with data collecting card 13 is connected, the motor 2-12 and motor driving card
14 output end connection.
In the present embodiment, as shown in figure 1, being mounted in the left and right sides column of the frame 2-1 parallel with leading screw 2-4
Spaced guide pillar 2-2, the moving beam 2-3 two ends are each passed through two guide pillar 2-2.Guide pillar 2-2 can be to movement
Moving up and down for crossbeam 2-3 is oriented to, so as to ensure precision that moving beam 2-3 is moved up and down.
In the present embodiment, as shown in figure 1, being mounted on being used to incite somebody to action on the left and right sides column medial surface of the frame 2-1
Leading screw 2-4 and guide pillar 2-2 are covered in the dustproof shade 2-5 in the column.By setting dustproof shade 2-5, it can prevent aerial
Dust and other impurities are attached on leading screw 2-4 and guide pillar 2-2.
In the present embodiment, as shown in fig. 7, the sensor stand 9 is shaped as U-shaped, the sensor stand 9 passes through
Two the first soket head cap screw 11-1 are fixedly connected on the top of dial 4, are set on the bottom surface of the corresponding sensor stand 9
There is the unthreaded hole that two the first soket head cap screw of confession 11-1 are passed through；The first displacement transducer 6-1 passes through hexagonal in four second
Screw 11-2 is fixedly connected on the side side of sensor stand 9, is set on the side side of the corresponding sensor stand 9
There is the screwed hole that four the second soket head cap screw of confession 11-2 are passed through；The second displacement sensor 6-2 passes through in four the 3rd six
Angle screw 11-3 is fixedly connected on the opposite side side of sensor stand 9, the opposite side side of the corresponding sensor stand 9
On be provided with the screwed hole that four soket head cap screw 11-3 of confession the 3rd are passed through.
In the present embodiment, as shown in figure 8, described matrix clamper 8 includes being used for the matrix 1- for being laterally stuck in tested sample 1
Support holder block 8-1 on 1 and for being screwed on support holder block 8-1 and for fastening support holder block 8-1 and matrix 1-1's
Matrix trip bolt 8-2, corresponding described matrix grip block 8-1 side side are provided with what is passed through for matrix trip bolt 8-2
The side side relative with setting matrix trip bolt 8-2 is fixedly connected with matrix folder on screwed hole, described matrix grip block 8-1
Block elongation bar 8-3 is held, described matrix grip block elongation bar 8-3 is in contact with the first displacement transducer 6-1 top.Specific implementation
When, described matrix trip bolt 8-2 is milled screw.
In the present embodiment, as shown in figure 9, the coating clamper 7 includes being used for the coating 1- for being laterally stuck in tested sample 1
Coating grip block 7-1 on 2 and for being screwed on coating grip block 7-1 and for fastening coating grip block 7-1 and coating 1-2's
Coating trip bolt 7-2, the corresponding coating grip block 7-1 side side are provided with what is passed through for coating trip bolt 7-2
The side side relative with setting coating trip bolt 7-2 is fixedly connected with blanket clip on screwed hole, the coating grip block 7-1
Block elongation bar 7-3 is held, the coating grip block elongation bar 7-3 is in contact with second displacement sensor 6-2 top.Specific implementation
When, the coating trip bolt 7-2 is milled screw.
In the present embodiment, the model PSD-10TSJTH of the weighing sensor 15.
In the present embodiment, the first displacement transducer 6-1 and second displacement the sensor 6-2 is that KTR self-recovering types are straight
Linear movement pick-up.Self-resetting spring is provided with KTR self-recovering type linear displacement transducers, the Self-resetting spring can make
KTR self-recovering types linear displacement transducer realize automatically reset, and ensure that support holder device 8 all the time with the first displacement sensing
Device 6-1 top is in contact, and top of the coating clamper 7 all the time with second displacement sensor 6-2 is in contact, and so just ensure that
Matrix 1-1 displacement is entered at the stress point position that first displacement transducer 6-1 can be contacted to matrix 1-1 with support holder device 8
Coating at row detection in real time, the stress point position that second displacement sensor 6-2 can be contacted to coating 1-2 with coating clamper 7
1-2 displacement is detected in real time.
As shown in figure 11, coating of the invention/matrix composite interface bond strength measuring method, including following step
Suddenly：
Step 1: the installation of tested sample 1：First, support holder device 8 is clamped on the matrix 1-1 of tested sample 1,
And coating clamper 7 is clamped on the coating 1-2 of tested sample 1, and the stress for making matrix 1-1 be contacted with support holder device 8
The stress point position that point position and coating 1-2 are contacted with coating clamper 7 is on same vertical curve；Then, tested sample 1 is made
Matrix 1-1 one sides upward, down, put by coating 1-2 mono- by the entirety of tested sample 1, support holder device 8 and coating clamper 7
On two lower rolls 3, and support holder device 8 and the first displacement transducer 6-1 top is in contact, make coating clamper 7 with
Second displacement sensor 6-2 top is in contact, and the contacting points position of upper roller 5 and tested sample 1 is located at matrix 1-1 center
At position；
Step 2: applying pressure to tested sample 1 and carrying out data acquisition：Computer 12 is operated, starts measurement, computer
12 are rotated by the motor 2-12 of motor driving card 14, when the motor 2-12 is rotated, and drive the first synchronous pulley 2-14 to turn
Dynamic, the first synchronous pulley 2-14 drives the second synchronous pulley 2-6 to rotate by the first timing belt 2-7, the second synchronous pulley 2-6 bands
Dynamic synchronization tape spool 2-13 is rotated, and synchronous tape spool 2-13 drives the 3rd synchronous pulley 2-10 to rotate, and the 3rd synchronous pulley 2-10 passes through
Second timing belt 2-11 drives two the 4th synchronous pulley 2-9 synchronous axial systems, and two the 4th synchronous pulley 2-9 drive two
Leading screw 2-4 synchronous axial systems, when leading screw 2-4 is rotated, drive moving beam 2-3 to move down by the feed screw nut, mobile horizontal
When beam 2-3 is moved down, upper roller 5 is driven to move down, when upper roller 5 is moved into contact with the position of tested sample 1, upper roller 5
The pressure being applied in tested sample 1 is produced suddenly, and the pressure that weighing sensor 15 is applied in tested sample 1 to upper roller 5 enters
Row detects and by the signal output detected that to data collecting card 13 first displacement transducer 6-1 is to matrix 1-1 and matrix in real time
Matrix 1-1 displacement carries out detection in real time and by the signal output detected to data at the stress point position that clamper 8 is contacted
Coating 1-2 position at capture card 13, the stress point position that second displacement sensor 6-2 is contacted to coating 1-2 with coating clamper 7
Shift-in row detects and by the signal output detected that to data collecting card 13 collection of data collecting card 13 upper roller 5 is applied in real time
Matrix 1-1 shift value and painting at the stress point position that pressure value, matrix 1-1 in tested sample 1 are contacted with support holder device 8
Exported at the stress point position that layer 1-2 is contacted with coating clamper 7 after coating 1-2 shift value to computer 12, when upper roller 5 is applied
The pressure value being added in tested sample 1 reaches after default pressure initial value F ' that the start recording of computer 12 is driven by motor
Block the angle, θ that 14 motor 2-12 are turned over, according to formulaCalculating obtains upper roller 5 and contacted with matrix 1-1
Stress point position at matrix 1-1 displacement Y, and just record a upper roller 5 every time Δ t and be applied in tested sample 1
Pressure value F, at the stress point position that is contacted with matrix 1-1 of upper roller 5 matrix 1-1 displacement Y, matrix 1-1 and support holder
At the stress point position that matrix 1-1 shift value R and coating 1-2 is contacted with coating clamper 7 at the stress point position that device 8 is contacted
Coating 1-2 shift value S；Wherein, z1For the first synchronous pulley 2-14 number of teeth, z2For the second synchronous pulley 2-6 number of teeth, z3
For the 3rd synchronous pulley 2-10 number of teeth, z4For the 4th synchronous pulley 2-9 number of teeth, p is leading screw 2-4 helical pitch；
In in this implementation, the value of F ' described in step 2 is 5N~15N, and the value of Δ t described in step 2 is 10ms
~100ms.Preferably, the value of F ' described in step 2 is 10N, and the value of Δ t described in step 2 is 50ms.
Step 3: Data Analysis Services：First, computer 12 is according to formula α=arctan [(S+h-R)/L]-arctan
(h/L) the peel angle α for obtaining matrix 1-1 and coating 1-2 is calculated；Then, computer 12 is using Y as transverse axis, and α is the longitudinal axis, draws out α
The curve map changed with Y, and using Y as transverse axis, F is the longitudinal axis, draws out the curve map that F changes with Y；Finally, computer 12 is first in α
The value for the corresponding Y of point that α gradually increases since 0 is found on the curve map changed with Y and critical stripping displacement Y0 is designated as, then
The corresponding F of critical stripping displacement Y0 value is found on the curve map that F changes with Y and critical stripping pressure F0 is designated as；Wherein, h is
The stress point position that the stress point position and coating 1-2 that matrix 1-1 is contacted with support holder device 8 are contacted with coating clamper 7 it
Between initial distance, L is the stress that is contacted with the contacting points position of tested sample 1 to matrix 1-1 with support holder device 8 of upper roller 5
The horizontal range of vertical curve where the stress point position that point position and coating 1-2 are contacted with coating clamper 7.Critical stripping displacement
Y0, critical stripping pressure F0, α have reacted the coating 1-2 of tested sample 1 with the Y curve maps changed and F with the Y curve maps changed
With matrix 1-1 interface bond strength；Critical stripping displacement Y0 and critical stripping pressure F0 are bigger, coating/matrix composite
Interface bond strength it is better.
As shown in Figure 12 and Figure 13, the stress point that upper roller 5 is contacted with matrix 1-1 is A points, matrix 1-1 and support holder device 8
The stress point of contact is B points, and the stress point that coating 1-2 is contacted with coating clamper 7 is C points；A points and B points are respectively positioned on matrix 1-1
Center line on, C points are located on coating 1-2 center line, and initial distance between B points and C points is h, A points to B points and C points institute
It is L in the horizontal range of vertical curve, when reaching critical exfoliated state, the displacement of A points is Y0.
In the present embodiment, the curve map that the α drawn out changes with Y is as shown in figure 14, the curve that the F drawn out changes with Y
Figure is as shown in figure 15.It is seen from figure 14 that with Y increase, α has just started as 0, as Y=Y0, the coating of tested sample 1
1-2 and matrix 1-1 reaches critical exfoliated state, and hereafter, α becomes larger, in this whole process, it can be seen from fig. 15 that F
Change with Y.
In summary, the present invention supports tested sample 1 by two lower rolls 3 below tested sample 1, is tested
Sample 1 provides a pair of end reactions, and the centre position of the upper surface of tested sample 1 applies one provided with a upper roller 5 to tested sample 1
Individual downward pressure, the surface that upper roller 5 press against matrix 1-1 is moved down, and tested sample 1 gradually changes forming V-shape and occurs coating
1-2 and matrix 1-1 stripping；The present invention can measure the matrix 1-1 and coating 1-2 that obtain tested sample 1 peel angle α, face
The curve map that displacement Y0 is peeled off on boundary, critical stripping pressure F0, α changes with the Y curve maps changed and F with Y, realize to coating/
The quantization measurement of matrix composite interface bond strength, and it is easy to operate.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, it is every according to the present invention
Any simple modification, change and equivalent structure change that technical spirit is made to above example, still fall within skill of the present invention
In the protection domain of art scheme.
Claims (10)
1. a kind of coating/matrix composite interface bond strength measurement apparatus, it is characterised in that：Adopted including testing machine and data
Collection and control system, and the test sample clamping mechanism on testing machine and for clamping tested sample (1)；It is described tested
Sample (1) is by matrix (1-1) and is arranged on the coating (1-2) of matrix (1-1) bottom and constitutes, the width and base of the coating (1-2)
The width of body (1-1) is equal, and the length of the coating (1-2) is less than the length of matrix (1-1)；
The frame (2-1) of the testing machine including doorframe shape, the moving beam (2-3) being arranged in frame (2-1) and it is arranged on
It is provided with the headstock (10) of frame (2-1) bottom, the headstock (10) for driving moving beam (2-3) to move up and down
Actuating unit；It is mounted in the left and right sides column of the frame (2-1) on leading screw (2-4), two leading screws (2-4)
Feed screw nut is mounted on, the two ends of the moving beam (2-3) are fixedly connected with two feed screw nuts respectively；It is described dynamic
Force mechanisms include turning on the motor (2-12) and belt wheel axle bed (2-8) being arranged in headstock (10), the belt wheel axle bed (2-8)
It is dynamic to be connected with the synchronous tape spool (2-13) passed respectively outside belt wheel axle bed (2-8) upper and lower ends, the motor (2-12)
It is fixedly connected with the first synchronous pulley (2-14) on output shaft, it is same that the upper end of the synchronous tape spool (2-13) is fixedly connected with second
Belt wheel (2-6) is walked, the lower end of the synchronous tape spool (2-13) is fixedly connected with the 3rd synchronous pulley (2-10), two leading screws
The bottom of (2-4) has been fixedly connected with the 4th synchronous pulley (2-9), and two the 4th synchronous pulleys (2-9) are symmetrical arranged, and described
Bridging has the first timing belt (2-7), the 3rd synchronous pulley on one synchronous pulley (2-14) and the second synchronous pulley (2-6)
Bridging has the second timing belt (2-11) on (2-10) and two the 4th synchronous pulleys (2-9)；
The test sample clamping mechanism includes the dial (4) being arranged at the top of headstock (10) and is lifted on moving beam (2-3)
The upper roller (5) of bottom, and support holder device (8) for the matrix (1-1) that clamps tested sample (1) and tested for clamping
The coating clamper (7) of the coating (1-2) of sample (1)；It is provided between the upper roller (5) and the bottom surface of moving beam (2-3)
For the weighing sensor (15) detected to the pressure that upper roller (5) is applied in tested sample (1), the dial (4)
Top be fixedly connected with sensor stand (9) and two are symmetricly set on upper roller (5) both sides and for supporting tested sample (1)
Lower roll (3), the scale for indicating lower roll (3) present position, the sensor are provided with the side wall of the dial (4)
It is fixedly connected with support (9) for detecting matrix (1- at the stress point position that matrix (1-1) is contacted with support holder device (8)
1) the first displacement transducer (6-1) of displacement and for detecting stress point position that coating (1-2) contacts with coating clamper (7)
Put the second displacement sensor (6-2) of the displacement of place's coating (1-2), the top of first displacement transducer (6-1) and matrix
Clamper (8) is in contact, and the top of the second displacement sensor (6-2) is in contact with coating clamper (7)；
The acquisition and control system includes computer (12) and the data collecting card (13) being connected on computer (12)
With motor driving card (14), output end, the output end and second of the first displacement transducer (6-1) of the weighing sensor (15)
Input of the output end of displacement transducer (6-2) with data collecting card (13) is connected, and the motor (2-12) is driven with motor
The output end connection of dynamic card (14).
2. according to the coating described in claim 1/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
The guide pillar (2-2) set with leading screw (2-4) parallel interval is mounted in the left and right sides column for stating frame (2-1), it is described to move
The two ends of dynamic crossbeam (2-3) are each passed through two guide pillars (2-2).
3. according to the coating described in claim 2/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
State described in being mounted on being used on the left and right sides column medial surface of frame (2-1) being covered in leading screw (2-4) and guide pillar (2-2)
Dustproof shade (2-5) in column.
4. according to the coating described in claim 1/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
The U-shaped that is shaped as of sensor stand (9) is stated, the sensor stand (9) is solid by two the first soket head cap screws (11-1)
Surely the top of dial (4) is connected to, hexagonal spiral shell in two confessions first is provided with the bottom surface of the corresponding sensor stand (9)
The unthreaded hole that nail (11-1) is passed through；First displacement transducer (6-1) connects by the way that four the second soket head cap screws (11-2) are fixed
On the side side for being connected on sensor stand (9), four confessions the are provided with the side side of the corresponding sensor stand (9)
The screwed hole that two soket head cap screws (11-2) are passed through；The second displacement sensor (6-2) passes through four the 3rd soket head cap screws
(11-3) is fixedly connected on the opposite side side of sensor stand (9), the opposite side side of the corresponding sensor stand (9)
On be provided with the screwed hole that four soket head cap screws (11-3) of confession the 3rd are passed through.
5. according to the coating described in claim 1/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
State support holder block (8-1) and use that support holder device (8) includes being used for laterally being stuck on the matrix of tested sample (1) (1-1)
Matrix trip bolt (8- in being screwed on support holder block (8-1) and for fastening support holder block (8-1) and matrix (1-1)
2), the side side of corresponding described matrix grip block (8-1) is provided with the screwed hole passed through for matrix trip bolt (8-2), institute
State the side side on support holder block (8-1) with setting matrix trip bolt (8-2) relative and be fixedly connected with support holder block
Elongation bar (8-3), described matrix grip block elongation bar (8-3) is in contact with the top of the first displacement transducer (6-1).
6. according to the coating described in claim 1/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
State coating grip block (7-1) and use that coating clamper (7) includes being used for laterally being stuck on the coating of tested sample (1) (1-2)
Coating trip bolt (7- in being screwed on coating grip block (7-1) and for fastening coating grip block (7-1) and coating (1-2)
2), the side side of the corresponding coating grip block (7-1) is provided with the screwed hole passed through for coating trip bolt (7-2), institute
State the side side on coating grip block (7-1) with setting coating trip bolt (7-2) relative and be fixedly connected with coating grip block
Elongation bar (7-3), the coating grip block elongation bar (7-3) is in contact with the top of second displacement sensor (6-2).
7. according to the coating described in claim 1/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
State the model PSD-10TSJTH of weighing sensor (15).
8. according to the coating described in claim 1/matrix composite interface bond strength measurement apparatus, it is characterised in that：Institute
It is KTR self-recovering type linear displacement transducers to state the first displacement transducer (6-1) and second displacement sensor (6-2).
9. a kind of side that coating/matrix composite interface bond strength measurement is carried out using device as claimed in claim 1
Method, it is characterised in that this method comprises the following steps：
Step 1: the installation of tested sample (1)：First, support holder device (8) is clamped in the matrix (1-1) of tested sample (1)
On, and coating clamper (7) is clamped on the coating of tested sample (1) (1-2), and make matrix (1-1) and support holder device
(8) the stress point position that the stress point position and coating (1-2) of contact are contacted with coating clamper (7) is on same vertical curve；
Then, make tested sample (1) matrix (1-1) one side upward, coating (1-2) one down, by tested sample (1), matrix press from both sides
Holder (8) and the entirety of coating clamper (7) are placed on two lower rolls (3), and make support holder device (8) and the first displacement sensing
The top of device (6-1) is in contact, and coating clamper (7) and the top of second displacement sensor (6-2) is in contact, makes upper roller
(5) contacting points position with tested sample (1) is located at the center position of matrix (1-1)；
Step 2: applying pressure to tested sample (1) and carrying out data acquisition：Computer (12) is operated, starts measurement, computer
(12) rotated by motor driving card (14) motor (2-12), when the motor (2-12) rotates, drive the first timing belt
Take turns (2-14) to rotate, the first synchronous pulley (2-14) drives the second synchronous pulley (2-6) to rotate by the first timing belt (2-7),
Second synchronous pulley (2-6) drives synchronous tape spool (2-13) to rotate, and synchronous tape spool (2-13) drives the 3rd synchronous pulley (2-10)
Rotate, the 3rd synchronous pulley (2-10) drives two the 4th synchronous pulley (2-9) synchronous axial systems by the second timing belt (2-11),
Two the 4th synchronous pulleys (2-9) drive two leading screw (2-4) synchronous axial systems, when leading screw (2-4) is rotated, pass through the silk
Thick stick nut drives moving beam (2-3) to move down, when moving beam (2-3) is moved down, and drives upper roller (5) to move down,
When upper roller (5) is moved into contact with the position of tested sample (1), the pressure that upper roller (5) is applied in tested sample (1) is unexpected
Produce, pressure that weighing sensor (15) is applied in tested sample (1) to upper roller (5) carries out detection in real time and will detected
Signal output gives data collecting card (13), and the first displacement transducer (6-1) is contacted to matrix (1-1) with support holder device (8)
The displacement of matrix (1-1) detect in real time and gives data collecting card (13) by the signal output detected at stress point position,
The position of coating (1-2) at the stress point position that second displacement sensor (6-2) is contacted to coating (1-2) with coating clamper (7)
The signal output detected is simultaneously given data collecting card (13), data collecting card (13) collection upper roller (5) by the detection in real time of shift-in row
Matrix (1- at the stress point position that the pressure value that is applied in tested sample (1), matrix (1-1) are contacted with support holder device (8)
1) exported at the stress point position that shift value and coating (1-2) is contacted with coating clamper (7) after the shift value of coating (1-2)
Computer (12) is given, after the pressure value that upper roller (5) is applied in tested sample (1) reaches default pressure initial value F ', meter
The angle, θ that calculation machine (12) start recording is turned over by motor driving card (14) motor (2-12), according to formulaCalculating obtains the displacement of matrix (1-1) at the stress point position that upper roller (5) is contacted with matrix (1-1)
Y, and just record pressure value F, upper roller (5) and matrix (1- that a upper roller (5) is applied in tested sample (1) every time Δ t
1) the stress point position that displacement Y, the matrix (1-1) of matrix (1-1) are contacted with support holder device (8) at the stress point position of contact
Put the shift value R and coating (1-2) at the stress point position that is contacted with coating clamper (7) of coating (1-2) of place's matrix (1-1)
Shift value S；Wherein, z1For the first synchronous pulley (2-14) number of teeth, z2For the second synchronous pulley (2-6) number of teeth, z3For the 3rd
The number of teeth of synchronous pulley (2-10), z4For the number of teeth of the 4th synchronous pulley (2-9), p is the helical pitch of leading screw (2-4)；
Step 3: Data Analysis Services：First, computer (12) is according to formula α=arctan [(S+h-R)/L]-arctan (h/
L the peel angle α for obtaining matrix (1-1) and coating (1-2)) is calculated；Then, computer (12) is using Y as transverse axis, and α is the longitudinal axis, draws
Go out the curve map that α changes with Y, and using Y as transverse axis, F is the longitudinal axis, draws out the curve map that F changes with Y；Finally, computer (12)
First the value for the corresponding Y of point that α gradually increases since 0 is found on the curve map that α changes with Y and critical stripping displacement is designated as
Y0, then find on the curve map that F changes with Y the corresponding F of critical stripping displacement Y0 value and be designated as critical stripping pressure F0；Its
In, h is that the stress point position that matrix (1-1) is contacted with support holder device (8) and coating (1-2) are contacted with coating clamper (7)
Stress point position between initial distance, L is the contacting points position of upper roller (5) and tested sample (1) to matrix (1-1) and base
It is vertical where the stress point position that the stress point position of body clamper (8) contact and coating (1-2) are contacted with coating clamper (7)
The horizontal range of line.
10. in accordance with the method for claim 9, it is characterised in that：The value of F ' described in step 2 is 5N~15N, step
The value of Δ t described in two is 10ms~100ms.
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| CN109406394A (en) * | 2018-12-20 | 2019-03-01 | 浙江工业大学 | A kind of film and basal body binding force stepper motor drive gear drive measuring device |
| CN110132839A (en) * | 2019-04-19 | 2019-08-16 | 江苏大学 | Base of the one kind for composite bimetal pipe covers pipe interface bond strength testing mould and method |
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| CN111157447A (en) * | 2020-01-03 | 2020-05-15 | 云南名博包装印刷有限公司 | Device for testing heat resistance of adhesive and testing method using device |
| CN112763414A (en) * | 2021-01-31 | 2021-05-07 | 浙江工业大学 | Film and base member cohesion force step motor drive lead screw transmission measuring device |
| CN112924377A (en) * | 2019-12-06 | 2021-06-08 | 昆山华复精密金属有限公司 | Test system and method for stripping force of paint spraying product |
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| CN110132839A (en) * | 2019-04-19 | 2019-08-16 | 江苏大学 | Base of the one kind for composite bimetal pipe covers pipe interface bond strength testing mould and method |
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| CN112763414A (en) * | 2021-01-31 | 2021-05-07 | 浙江工业大学 | Film and base member cohesion force step motor drive lead screw transmission measuring device |
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