CN205003068U - A binder adhesion properties testing arrangement for slice substrate - Google Patents
A binder adhesion properties testing arrangement for slice substrate Download PDFInfo
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- CN205003068U CN205003068U CN201520727577.2U CN201520727577U CN205003068U CN 205003068 U CN205003068 U CN 205003068U CN 201520727577 U CN201520727577 U CN 201520727577U CN 205003068 U CN205003068 U CN 205003068U
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Abstract
The utility model discloses a binder adhesion properties testing arrangement for slice substrate, include: the slice substrate, the load piece, it is used for bonding with the slice substrate and fixes the experimental subassembly of back formation, and tensile test subassembly load subassembly, it includes testing machine load connecting piece, experimental subassembly connecting piece and connecting device, wherein, connecting device, experimental subassembly connecting piece and testing machine load connecting piece connect gradually, experimental subassembly passes through connecting device and links to each other with experimental subassembly connecting piece, and testing machine load connecting piece links to each other with the testing machine, carries out the tensile failure breakdown test. The utility model has the characteristics of simple structure, convenient operation, can certain bonding agent of effectual test adhesion properties between for the slice substrate to evaluate it, simultaneously also can be to arbitrary based on drawing the experimental subassembly of cutting the combination to test etc.
Description
Technical field
The utility model relates to adhesive property field tests, is specifically related to a kind of cementing agent adhesive property proving installation for flat substrates.
Background technology
Adhesive technology is a kind of Material Joining Technology conventional in engineering.Compare with other connected modes such as traditional welding, riveted joint, bolt connections, adhesive technology has simple process, economical and efficient, alleviate tare, reduce energy consumption, the slow noise reduction that shakes, the distribution of web member upper stress is relatively uniform, suitable material is extensive and can realize dissimilar material joining, the plurality of advantages such as outward appearance is neat.
In recent years, since, along with the fast development of bonding agent and people are more and more higher to the comfortableness of vehicle, security, light-weighted requirement, the application of adhesive technology in automobile making is increasingly extensive.Simultaneously due to various new material as carbon fiber, aluminium alloy, compound substance etc. improve greatly in the utilization rate of vehicle manufacturing industry, adhesive technology, as a kind of novel Material Joining Technology, plays more and more important role in the connection of foreign material.
Although adhesive technology has many advantages compared with traditional material connected mode, apply increasingly extensive in the connection of foreign material, but about bonding agent still lacks experimental study relative to the adhesive property aspect of flat substrates, especially bonding agent under cutting combined stress state is drawn relative to the adhesive property between flat substrates, in engineering, to lack effective research means.
The adhesive property test of current bonding agent mainly comprises tension test, shearing of thin disc test, disbonded test etc.In shearing of thin disc test, during tensile loads, thin plate adherend is easily by stretch bending, and adherend deformation pattern as shown in Figure 1.Easily cause load suffered by bonding region to be not pure shear, to occur the stress state of more complicated, can not as the foundation evaluating bonding agent adhesive property under pure shear stress state.The utility model devises a kind of for this reason take aluminium alloy as the loading blocks of material, ensure that test specimen does not occur bending and deformation in process of the test, the load acted on bonding plane can not change, consider simultaneously and be processed into the block test specimen of large scale by portion of material not only operation easier is large, and increase experimentation cost, easily cause waste, therefore by these materials processing slabbing base materials, by flat substrates bonding in aluminium alloy loading blocks, reach the object of test bonding agent relative to flat substrates adhesive property.
And in disbonded test, the main tension stress effect of bonding glue-line, can not to reflect in body structure that drawing of extensively existing cuts the adhesive property of bonding agent under combined stress state comprehensively.The utility model not only devises pure extension for testing bonding agent adhesive property under pure extension, pure shear stress state and pure shear aluminium alloy loading blocks for this reason, cut ratio according to different drawing simultaneously, devise for testing the aluminium alloy loading blocks of drawing and cutting bonding agent adhesive property under combined stress state, by draw in difference cut than aluminium alloy loading blocks on bonding flat substrates, reach test and draw and to cut under combined stress state bonding agent relative to the object of the adhesive property of flat substrates.
Utility model content
The utility model has designed and developed a kind of cementing agent adhesive property proving installation for flat substrates.
The purpose of this utility model is the experimental provision being reached research purpose by flat substrates bonding in aluminium alloy loading blocks, can effectively for testing certain bonding agent relative to the adhesive property between flat substrates, and it is evaluated, also can carry out to drawing arbitrarily the test assembly cutting combination the feature of testing etc. simultaneously.
The technical scheme that the utility model provides is:
For a cementing agent adhesive property proving installation for flat substrates, comprising:
Flat substrates, its thickness is 0.8mm ~ 2.8mm;
Loading blocks, it forms test assembly after being adhesively fixed with described flat substrates; And
Tension test assembly charging assembly, it comprises testing machine and loads web member, test assembly web member and coupling arrangement;
Wherein, coupling arrangement, test assembly web member and testing machine loading web member is connected successively; Described test assembly is connected with described test assembly web member by described coupling arrangement, and described testing machine loads web member and is connected with testing machine, carries out tension test.
Preferably, described loading blocks is pure extension test assembly loading blocks, pure shear test assembly loading blocks or draws and cut composite test assembly loading blocks;
Wherein, described pure extension test assembly loading blocks, its gluing of surfaces and axes normal; Described pure shear test assembly loading blocks, its gluing of surfaces and axis being parallel; Described drawing cuts composite test assembly loading blocks, and the angle of its gluing of surfaces and axis is 0
o< α
i< 90
o.
Preferably, described loading blocks is aluminum alloy material.
Preferably, described flat substrates is stainless steel.
Preferably, the thickness of described stainless steel flat substrates is 0.8mm ~ 2.8mm.
Preferably, the bonding plane of described loading blocks and described flat substrates carries out annular knurl process.
Preferably, described test assembly web member is " U " type web member, and described coupling arrangement is bearing pin.
Preferably, described bearing pin and described " U " type web member are that cross is arranged vertically.
Preferably, it is characterized in that, described loading blocks is bonded in described flat substrates both sides, and the bondline thickness between described loading blocks and described flat substrates both sides end face is 1.2mm.
Beneficial effect described in the utility model:
1, by certain thickness flat substrates bonding in aluminium alloy loading blocks, ensure that test specimen there will not be flexural deformation in test loading procedure, the load acted on bonding plane keeps invariable, effectively can test certain bonding agent relative to the adhesive property between flat substrates, and it is evaluated;
2, difference can be tested and check draw and cut bonding agent under combined stress state relative to the adhesive property of flat substrates, reference frame can be provided for the bonding agent adhesive property evaluation under any complex working condition;
3, flat substrates bonding in aluminium alloy loading blocks is adopted, aluminium alloy loading blocks block can be reused, effectively decrease experimentation cost, reduce the difficulty of processing test specimen, the simultaneously design of flat substrates solves the problem that some material is not easily processed into the block test specimen of large scale, can test and evaluate bonding agent relative to adhesive property;
4, the test unit related in the utility model actual mechanical process by can effectively ensure bondline thickness and adhesive reinforcement, in tension test test specimen charging assembly, two pairs of bearing pins up and down in " U " type web member are that cross is arranged vertically, not only structure is simple, use reliable, larger load can be born, and side load and moment of flexure can be eliminated, ensure test specimen at loading procedure only by axial force;
5, in bonding process, use the bonded adhesives layer thickness between vernier caliper control aluminium alloy loading blocks and flat substrates, the stress caused owing to using beaded glass to control bonding thickness during tradition can be avoided bonding is concentrated and is waited other harmful effects.
Accompanying drawing explanation
Fig. 1 is shearing of thin disc test adherend distortion schematic diagram.
Fig. 2 is pure extension test assembly schematic diagram.
Fig. 3 is pure shear test assembly schematic diagram.
Fig. 4 draws to cut composite test assembly schematic diagram.
Fig. 5 is tension test test specimen charging assembly schematic diagram.
Fig. 6 draws to cut combined aluminium alloy loading blocks mormal stress σ, tangential shearing stress τ schematic diagram.
Fig. 7 is pure extension aluminium alloy loading blocks schematic diagram.
Fig. 8 is pure shear aluminium alloy loading blocks schematic diagram.
Fig. 9 draws the aluminium alloy loading blocks schematic diagram cutting combination.
Figure 10 is flat substrates schematic diagram.
Figure 11 is the aluminium alloy loading blocks of angle difference 14.04 °, 23.20 °, 33.69 °, 45.00 °, 56.30 °, 66.80 °, 75.96 ° between gluing of surfaces and axis.
Figure 12 is that pure extension machine draws and cuts composite member bonding jig schematic diagram.
Figure 13 is pure shear test specimen bonding jig schematic diagram.
Figure 14 is the bonding form schematic diagram of pure extension test specimen.
Figure 15 is the bonding form schematic diagram of pure shear test specimen.
Figure 16 draws to cut the bonding form schematic diagram of composite member.
Figure 17 draws the graph of relation cut than with unit area crushing load.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to instructions word to make those skilled in the art.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, for certain automobile-used cementing agent, the utility model provides a kind of cementing agent adhesive property proving installation for flat substrates, and it comprises: for test cementing agent adhesive property flat substrates 200, for forming aluminium alloy loading blocks 101 and the tension test assembly charging assembly 400 of test assembly 100 after being adhesively fixed by the flat substrates 200 of test; Test assembly 100 comprises pure extension test assembly 110, pure shear test assembly 120 and draws cuts composite test assembly 130; Tension test assembly charging assembly 400 comprises testing machine and loads web member 411, lower stretching test assembly charging assembly 412, upper connector 421, lower web member 422 and coupling arrangement 430; Test assembly 100 is connected with upper connector 421 and lower web member 422 respectively by coupling arrangement 430, tension test assembly charging assembly 400 loads web member 411 respectively by upper testing machine and lower stretching test assembly charging assembly 412 is connected with testing machine, carries out tension failure failure test; Aluminium alloy loading blocks 101 comprises pure extension test assembly loading blocks 111, pure shear test assembly loading blocks 121 and draws cuts composite test assembly loading blocks 131; Wherein, pure extension test assembly 110 is made up of pure extension test assembly loading blocks 111, flat substrates 200 and pure extension test assembly loading blocks 111, pure extension test assembly loading blocks 111 is bonded in two end faces of flat substrates 200 by bonding agent 300, the gluing of surfaces of pure extension test assembly loading blocks 111 and axes normal; Pure shear test assembly 120 is made up of pure shear test assembly loading blocks 121, flat substrates 200 and pure extension test assembly loading blocks 121, pure shear test assembly loading blocks 121 is bonded in two end faces of flat substrates 200 by bonding agent 300, the gluing of surfaces of pure shear test assembly loading blocks 121 and axis being parallel; Draw and cut composite test assembly 130 and cut composite test assembly loading blocks 131 form by drawing to cut composite test assembly loading blocks 131, flat substrates 200 and draw, draw and cut composite test assembly loading blocks 131 is bonded in flat substrates 200 two end faces by bonding agent 300, draw the gluing of surfaces of cutting composite test assembly loading blocks 131 and be 0 with the angle of axis
o< α
i< 90
o; In the present embodiment, Fig. 4 have chosen a fixing angle representatively property explanation.
In another kind of embodiment, loading blocks 101 is aluminum alloy material, the material of flat substrates 200 is stainless steel, surface treatment is carried out to aluminium alloy loading blocks 101 and stainless steel flat substrates 200 simultaneously, with sand paper along 45 ° of intersection polishing test specimens, and annular knurl process is carried out to aluminium alloy loading blocks 101 surface, improve bonding agent relative to the adhesive property of aluminium alloy loading blocks 101, avoid occurring interfacial failure at aluminium alloy loading blocks 101 gluing of surfaces; Then according to the bonding requirements of different bonding agent, use clean-out system and Treatment with activating agent aluminium alloy loading blocks 101 bonding plane and flat substrates 200 surperficial; Because bonded joint failure mode is mainly divided into cohesion failure, interfacial failure, mixing inefficacy and adherend to lose efficacy, compare with the effect of single stress state, draw cut bonding agent under the effect of combined stress state to lose efficacy relative to the failure mode median surface of flat substrates 200 and the lost efficacy possibility that occurs of mixing larger, therefore must carry out strict surface treatment to bonding plane, prevent because factor interference experiment results such as surface contaminations.
As shown in Figure 12 and Figure 13, in another kind of embodiment, the material of flat substrates 200 is stainless steel, bonding complete test assembly after, for the remaining glue of cleaning and bonding easy to operate consideration, the size of processing flat substrates 200 should respectively suitable be greater than pure extension test assembly loading blocks 111, pure shear test assembly loading blocks 121 and draw cut composite test assembly loading blocks 131 bonding plane size, processing flat substrates 200 thickness gets 0.8mm ~ 2.8mm, preferred as one, elect 2mm as at the beginning of flat substrates 200 thickness; Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto; When implementing the utility model, the length of flat substrates 200 and widely need to determine according to the concrete size of the bonding middle different angles aluminium alloy loading blocks bonding plane of reality, simultaneously in order to ensure the simple and convenient of adhesive reinforcement and bonding operating process, employing pure extension and drawing and cutting composite member bonding jig 500 and pure shear test specimen bonding jig 600.
As shown in Figure 5, in another kind of embodiment, test assembly upper connector 411 and lower web member 412 are " U " type stud connector design, and coupling arrangement 430 is bearing pin; Upper " U " type web member 421 and under two pairs of bearing pins 430 in " U " type web member 422 be arranged vertically in cross, side load and moment of flexure can be eliminated successively, ensure test specimen in tensile loads process only by axial force, thus ensure that the accuracy of test.
A kind of test mode of the present utility model comprises following test procedure:
Step one: as shown in Figure 6, cuts according to different drawing and compares k
ican obtain drawing the angle α cut between combination loading blocks 131 gluing of surfaces and axis
i; Cut combined stress state according to different drawing, choose different the drawing of n group and cut and compare k
n, draw for i-th group and cut combined stress (i=1,2, Λ Λ, n), it draws cuts than being k
i, mormal stress is σ, and tangential shearing stress is τ, by computing formula α
i=arctan (σ
i/ τ
i)=arctank
i(1≤i≤n), can obtain angle α between the corresponding aluminium alloy loading blocks gluing of surfaces of many groups and axis
i(0
o< α
i< 90
o); Wherein, draw to cut to be defined as to draw than k and cut combination loading blocks 131 mormal stress σ and draw with described the ratio cut and combine loading blocks tangential shearing stress τ;
In the present embodiment,
n>=2 and be positive integer; Draw to cut and compare k
ibe chosen for k respectively
1=2/8, k
2=3/7, k
3=4/6, k
4=5/5, k
5=6/4, k
6=7/3, k
7=8/2, by formula α
i=arctan (σ
i/ τ
i)=arctank
i(1≤i≤n) calculates corresponding aluminium alloy and draws and cut angle α between combination loading blocks gluing of surfaces and axis
ibe respectively α
1=14.04
o, α
2=23.20
o, α
3=33.69
o, α
4=45.00
o, α
5=56.30
o, α
6=66.80
o, α
7=75.96
o;
Step 2: determine pure extension test assembly loading blocks 111, pure shear test assembly loading blocks 121 and draw the bonding plane size of cutting composite test assembly loading blocks 131, makes pure extension test assembly loading blocks 111 as shown in Figure 7, makes pure shear test assembly loading blocks 121 as shown in Figure 8 and drawing as shown in Figure 9 cuts composite test assembly loading blocks 131; Wherein, as shown in figure 11, according to α in step one
ithe numerical value chosen make different draw cut than draw and cut composite test assembly loading blocks 132, draw and cut composite test assembly loading blocks 133, draw and cut composite test assembly loading blocks 134, draw and cut composite test assembly loading blocks 135, draw and cut composite test assembly loading blocks 136, draw to cut composite test assembly loading blocks 137 and draw and cut composite test assembly loading blocks 138; In the present embodiment, respectively processing and fabricating 6 pairs of pure extension test assembly loading blocks 111,6 pairs of pure shear test assembly loading blocks 121 and often organize 6 right seven groups different draw to cut cut composite test assembly loading blocks 132 ~ 138 than corresponding drawing;
Step 3: as shown in Figure 10, respectively make with pure extension test assembly loading blocks 111, described pure shear test assembly loading blocks 121 and described in draw the flat substrates 200 cutting composite test assembly loading blocks 132 ~ 138 corresponding size;
Step 4: respectively to pure extension test assembly loading blocks 111, pure shear test assembly loading blocks 121, draw the bonding plane cutting composite test assembly loading blocks 131 and flat substrates 200 to carry out surface treatment, in the present embodiment, disposal route comprises with sand paper along 45 ° of intersection polishing test specimens, and to pure extension test assembly loading blocks 111, pure shear test assembly loading blocks 121, draw and cut composite test assembly loading blocks 131 surface and carry out annular knurl process, improve bonding agent relative to the adhesive property of aluminium alloy loading blocks, avoid occurring interfacial failure at aluminium alloy loading blocks gluing of surfaces, then according to the bonding requirements of different bonding agent, use clean-out system and Treatment with activating agent aluminium alloy loading blocks bonding plane and flat substrates 200 surperficial, because bonded joint failure mode is mainly divided into cohesion failure, interfacial failure, mixing was lost efficacy and adherend lost efficacy, compare with the effect of single stress state, draw cut bonding agent under the effect of combined stress state to lose efficacy relative to the failure mode median surface of flat substrates 200 and the lost efficacy possibility that occurs of mixing larger, therefore strict surface treatment must be carried out to bonding plane, prevent because factor interference experiment results such as surface contaminations.
Step 5: carry out pure extension test assembly loading blocks 111, pure shear test assembly loading blocks 121 respectively, draw and cut the bonding of composite test assembly loading blocks 131 and flat substrates 200, obtain pure extension test assembly 110, pure shear test assembly 120 respectively and draw cutting composite test assembly 130; In the present embodiment, make 6 pure extension test assemblies 110 respectively, make 6 pure shear test assemblies 120 and according to α in step one
ithe numerical value chosen made seven groups different draw cut than draw and cut composite test assembly 130, often organize 6;
Step 6: as shown in Figure 5, by tension test assembly charging assembly 400, the flat substrates adhesive test assembly 100 be cured is connected on Compression and Expansion testing machine, tension test is carried out to flat substrates test assembly 100, meanwhile, for drawing the test of cutting composite test assembly 130 of drawing of cutting under the effect of combined stress state to comprise:
First, draw to cut in n group difference and compare k
iin (i=1,2, Λ Λ, n), selected drawing when cutting more identical than k carries out the parallel experiment of m group, records often kind respectively and draws the crushing load F occurred in tension test when cutting more identical than k
i, pass through formula
obtain often kind draw cut than mean fracture load
then, the area S that often kind is drawn the bonding plane of the described test assembly cut than correspondence is calculated respectively
i, pass through formula
obtain often kind and draw the unit area crushing load P cut than correspondence
i; In the present embodiment, as shown in figure 11, draw to cut seven groups of differences and compare k
iin with first group, draw and cut than being k
1=2/8 is described for example, cuts than being k drawing
1when=2/8, draw according to 6 couple made in step 5 and cut composite test assembly, carry out 6 groups and draw and cut than being k
1the parallel experiment of=2/8, can obtain 6 groups of crushing load F by occurring in tension test
1, record crushing load F respectively
1be respectively 14.65KN, 15.02KN, 14.87KN, 14.96KN, 14.85KN, 14.68KN, pass through formula
obtain first group to draw and cut than being k
1the mean fracture load of=2/8
then first group is drawn and cuts than being k
1the mean fracture load of=2/8 is
And first group is drawn and cuts than being k
1the area S of the bonding plane of=2/8
1=2576.27mm
2, then first group is drawn and cuts than being k
1the unit area crushing load of=2/8 is
In the present embodiment, seven groups of differences are drawn to cut and are compared k
ibe respectively k
1=2/8, k
2=3/7, k
3=4/6, k
4=5/5, k
5=6/4, k
6=7/3, k
7the concrete complete test figure of=8/2 is as shown in table 1:
Seven groups, table 1 difference draw cut than under unit area crushing load
As shown in figure 17, cut than k as horizontal ordinate to draw, unit area crushing load P is that ordinate sets up coordinate system, according in table 1 different draw to cut draw than k the unit area crushing load P described point in a coordinate system cut corresponding to composite test assembly 130, and each point is connected successively, obtain drawing the graph of relation cut than k and unit area crushing load P; By table 1 and Figure 17 known, in the present embodiment, when draw cut than for 6/4 time, unit area crushing load P reaches maximum.
By the failure mode of test specimen gluing of surfaces after observation stretching experiment, thus show that difference is drawn and cut the impact of combined stress state on flat substrates 200 bond failure form, evaluate certain bonding agent and draw the adhesive property cut relative to flat substrates 200 under the effect of combined stress state in difference.
By the implementation that the utility model as above is tested, achieve and test and evaluate certain bonding agent function relative to flat substrates 200 adhesive property under complex stress condition.
In another kind of embodiment, the adhering method in step 5, also comprises pure extension and draws and cut composite member adhering method, pure shear test specimen adhering method; Wherein, as shown in figure 12, pure extension test assembly 110 and drawing cuts composite test assembly 130 by pure extension and draw and cut composite member bonding jig 500 and realize; As shown in figure 13, pure shear test assembly 120 is realized by pure shear test specimen bonding jig 600;
It is concrete that to realize adhering method as follows:
As shown in figure 12, to cut composite member adhering method step as follows for pure extension and drawing:
The first step: aluminium alloy loading blocks 101a and 101b is fixed in fixture V-type groove 531, rotate plunger tip 520, make the two tight laminating, and locked by trip bolt 513, by vernier caliper measurement aluminium alloy loading blocks 101a and aluminium alloy loading blocks 101b entire length;
Second step: piece fixture 500 is lain on levelling bench, a certain amount of bonding agent is coated at the gluing of surfaces of aluminium alloy loading blocks 101a, aluminium alloy loading blocks 101a is put into fixture V-type groove 531, ensure tight between left side and fixture 500 left end inside surface, then control metal bead 514 with trip bolt 511 and compress aluminium alloy loading blocks 101a;
3rd step: bonding portion flat substrates 200 being aimed at aluminium alloy loading blocks 101a, keeps end face parallel with bonding plane, puts down gently on bonding agent;
4th step: aluminium alloy loading blocks 101b is put into V-type groove 531, and control the preliminary pretension of metal bead 514 with trip bolt 512, rotate plunger tip 520, promote aluminium alloy loading blocks 101b to move to aluminium alloy loading blocks 101a, aluminium alloy loading blocks 101b and flat substrates 200 are fitted, by repeatedly using vernier caliper measurement, and contrast with raw footage, bonding agent between extruding aluminium alloy loading blocks 101a and flat substrates 200 is until reach required bonding thickness, then the trip bolt at two parts aluminium alloy loading blocks 101a and 101b place is locked, according to condition of cure and the time requirement of different bonding agent, test specimen is placed on horizontal goods of furniture for display rather than for use platform and solidifies, until bonding agent glue-line 310 solidifies,
5th step: when glue-line 310 be cured to there is certain intensity time, take off aluminium alloy loading blocks and again clear up gluing of surfaces and the not bonding end face of flat substrates 200 of aluminium alloy loading blocks 101b;
6th step: be coated with a certain amount of bonding agent on aluminium alloy loading blocks 101b gluing of surfaces, places it in V-type groove 531, after aliging in aluminium alloy loading blocks 101b and fixture 500 left side, compresses 511 fix by trip bolt;
7th step: the aluminium alloy loading blocks 101a bonded together and flat substrates 200 are placed on V-type groove 531, and control the preliminary pretension of metal bead 514 with trip bolt 512, rotate plunger tip 520, promote aluminium alloy loading blocks 101a to move to aluminium alloy loading blocks 101b together with flat substrates 200, size Control is carried out by vernier caliper, until the bonding agent between aluminium alloy loading blocks 101b and flat substrates 200 reaches glue-line 310 thickness identical with the other end, locking trip bolt 513 compresses aluminium alloy loading blocks 101a and 101b, and solidifies;
8th step: remove the process such as remaining glue to the test specimen be cured, obtains the bonding test specimen assembly of complete flat substrates.
As shown in figure 13, pure shear test specimen adhering method step is as follows:
The first step: fixture 600 is placed on levelling bench, a certain amount of bonding agent is coated in the bonding site of aluminium alloy loading blocks 101a, lie in movable U-shaped piece 622, and clamped by side direction trip bolt 612, flat substrates 200 level is put down gently on bonding agent, and on flat substrates 200, place the auxiliary spacer of suitable thickness, to ensure bonded adhesives layer thickness.
Second step: use the bonding site of aluminium alloy loading blocks 101b to auxiliary spacer position, by fastening screw 611 extruding pressing plate 630 downwards, control glue-line 320 lap width well simultaneously, and guarantee that aluminium alloy loading blocks 101a aligns with aluminium alloy loading blocks 101b, keep test specimen adhering state until bonding agent solidification; According to condition of cure and the time requirement of different bonding agent, test specimen is placed on horizontal goods of furniture for display rather than for use platform and solidifies, until bonding agent glue-line 320 solidifies.
3rd step: when glue-line 320 be cured to there is certain intensity time, take off test specimen and again clear up aluminium alloy loading blocks 101b gluing of surfaces and the not bonding end face of flat substrates 200.
4th step: coat a certain amount of bonding agent in the bonding site of aluminium alloy loading blocks 101b, lie in the activity U-shaped piece 622 of fixture 600, and clamped by side direction trip bolt 612, flat substrates 200 and aluminium alloy loading blocks are aimed at bonding site, put down gently on bonding agent, by fastening screw 611 extruding pressing plate 630 downwards, meet the requirements of glue-line 320 thickness, solidification.
5th step: remove the process such as remaining glue to the test specimen be cured, obtains the bonding test specimen assembly of complete flat substrates.
Pure extension test assembly 110 as shown in figure 14 for being cured, pure shear test assembly 120 as shown in figure 15 for being cured, as shown in figure 16 for drawing of being cured cuts composite test assembly 130, by the pure extension test assembly 110 be cured, pure shear test assembly 120 and drawing is cut composite test assembly 130 and is fixed on Compression and Expansion testing machine by tension test assembly charging assembly 400 as shown in Figure 5, carry out tension failure experiment, upper " U " type web member 421 of tension test assembly charging assembly 400 and under two pairs of bearing pins 430 in " U " type web member 422 be arranged vertically in cross, side load and moment of flexure can be eliminated, ensure that test specimen is only subject to axial force in loading procedure.
In another kind of embodiment, in described step 6, also comprise experience crushing load F '
i, after choosing and drawing arbitrarily and cut composite test assembly, the actual crushing load F recorded
idemand fulfillment experimental formula
Wherein, draw to cut and compare k
ispan 0.25 ~ 4 time, meet the calculation requirement of described experimental formula, the area S of the bonding plane of test assembly simultaneously
ipass through formula
calculate, b be actual record draw the width cutting combination loading blocks 131, unit to be mm, h be actual record draw the thickness cutting combination loading blocks 131, unit is mm, then by formula α
i=arctan (σ
i/ τ
i)=arctank
ithe corresponding angle α of many groups can be obtained
i(i=1,2, Λ Λ, n), A, B, C, D, a are constant, and e is the truth of a matter of natural logarithm, draw and cut angle α between composite test assembly loading blocks 131 gluing of surfaces and axis
isatisfy condition
N>=2 and be positive integer; Carry out choosing often group different draw cut than draw and cut composite test assembly practical measurement crushing load F
iduring numerical value, by contrast number F
iwhether meet F '
i-a < F
i< F '
ithe interval requirement of+a, and then every group is drawn cut composite test assembly practical measurement crushing load F
ieffectively accept or reject, abandon not at F '
i-a < F
i< F '
ipractical measurement crushing load F in+a interval range
inumerical value, to crushing load F
ido not meet F '
i-a < F
i< F '
idrawing that+a interval requires is cut composite test assembly and is redeterminated, and carries out the calculating of effective unit area crushing load P after obtaining Effective Numerical again, if the continuous crushing load F measured for three times
iall do not meet F '
i-a < F
i< F '
ithe interval requirement of+a, then draw and cut composite test assembly to this and again make, then test, until draw and meet F '
i-a < F
i< F '
ithis of+a interval requirement draws the crushing load F cutting composite test assembly
i; In the present embodiment, A=0.0223, B=7.0683, C=-0.416, D=0.0006, a=0.223.
In another kind of embodiment, as Figure 14, Figure 15, Figure 16, bonding glue-line 340 thickness between pure extension test assembly loading blocks 111 with flat substrates 200 both sides end face is identical, bonding glue-line 350 thickness between pure shear test assembly loading blocks 121 with flat substrates 200 both sides end face is identical and draw bonding glue-line 360 thickness cut between composite test assembly loading blocks 131 with flat substrates 200 both sides end face identical, preferred as one, carry out in the process tested in the starting stage, choose bonding glue-line 340, bonding glue-line 350 and bonding glue-line 360 thickness are 1.2mm.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in instructions and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (9)
1., for a cementing agent adhesive property proving installation for flat substrates, it is characterized in that, comprising:
Flat substrates, its thickness is 0.8mm ~ 2.8mm;
Loading blocks, it forms test assembly after being adhesively fixed with described flat substrates; And
Tension test assembly charging assembly, it comprises testing machine and loads web member, test assembly web member and coupling arrangement;
Wherein, coupling arrangement, test assembly web member and testing machine loading web member is connected successively; Described test assembly is connected with described test assembly web member by described coupling arrangement, and described testing machine loads web member and is connected with testing machine, carries out tension test.
2. as claimed in claim 1 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, described loading blocks is pure extension test assembly loading blocks, pure shear test assembly loading blocks or draws and cut composite test assembly loading blocks;
Wherein, described pure extension test assembly loading blocks, its gluing of surfaces and axes normal; Described pure shear test assembly loading blocks, its gluing of surfaces and axis being parallel; Described drawing cuts composite test assembly loading blocks, and the angle of its gluing of surfaces and axis is 0 ° of < α
i< 90 °.
3., as claimed in claim 2 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, described loading blocks is aluminum alloy material.
4., as claimed in claim 2 or claim 3 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, described flat substrates is stainless steel.
5., as claimed in claim 4 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, the thickness of described stainless steel flat substrates is 0.8mm ~ 2.8mm.
6., as claimed in claim 5 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, the bonding plane of described loading blocks and described flat substrates carries out annular knurl process.
7., as claimed in claim 5 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, described test assembly web member is " U " type web member, and described coupling arrangement is bearing pin.
8., as claimed in claim 7 for the cementing agent adhesive property proving installation of flat substrates, it is characterized in that, described bearing pin and described " U " type web member are that cross is arranged vertically.
9. the cementing agent adhesive property proving installation for flat substrates according to any one of claim 1-3,5-8, it is characterized in that, described loading blocks is bonded in described flat substrates both sides, and the bondline thickness between described loading blocks and described flat substrates both sides end face is 1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727577.2U CN205003068U (en) | 2015-09-18 | 2015-09-18 | A binder adhesion properties testing arrangement for slice substrate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675489A (en) * | 2016-04-12 | 2016-06-15 | 南京航空航天大学 | Experimental device and experimental method for testing interlayer bonding performance of prepreg |
| CN110222420A (en) * | 2019-06-06 | 2019-09-10 | 吉林大学 | A kind of failure judgment method of viscous riveting connection structure |
| CN111426628A (en) * | 2020-03-23 | 2020-07-17 | Oppo广东移动通信有限公司 | Method for testing adhesive force of printing ink |
| CN116413204A (en) * | 2023-06-09 | 2023-07-11 | 浙大城市学院 | Tooth restoration bonding structure stress measuring device and using method |
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2015
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675489A (en) * | 2016-04-12 | 2016-06-15 | 南京航空航天大学 | Experimental device and experimental method for testing interlayer bonding performance of prepreg |
| CN105675489B (en) * | 2016-04-12 | 2019-05-07 | 南京航空航天大学 | The experimental provision and experimental method of adhesive property between a kind of test prepreg |
| CN110222420A (en) * | 2019-06-06 | 2019-09-10 | 吉林大学 | A kind of failure judgment method of viscous riveting connection structure |
| CN111426628A (en) * | 2020-03-23 | 2020-07-17 | Oppo广东移动通信有限公司 | Method for testing adhesive force of printing ink |
| CN116413204A (en) * | 2023-06-09 | 2023-07-11 | 浙大城市学院 | Tooth restoration bonding structure stress measuring device and using method |
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