CN106680201A - Equipment and method for testing interface bonding strength - Google Patents
Equipment and method for testing interface bonding strength Download PDFInfo
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- CN106680201A CN106680201A CN201510761174.4A CN201510761174A CN106680201A CN 106680201 A CN106680201 A CN 106680201A CN 201510761174 A CN201510761174 A CN 201510761174A CN 106680201 A CN106680201 A CN 106680201A
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Abstract
The invention discloses equipment and a method for testing interface bonding strength. The equipment comprises a fixing device, a sliding device and a test sample holding device, wherein the fixing device comprises a base, a first bearing seat, a second bearing seat, a first rotating shaft and a second rotating shaft; the sliding device comprises a guide rail and a pulley; the guide rail is fixedly connected with the base of the fixing device; the guide rail limits the movement of the pulley along the guide rail; the test sample holding device comprises a chassis and a press plate, the pulley of the sliding device is fixedly at the lower part of the chassis; and the press plate is used for fixing the end of a test sample to the chassis. With the equipment and the method for testing interface bonding strength, the test sample interface bonding strength testing results are stable and reliable, and the bonding strength results of different batches are highly comparable. The equipment and the method of the invention overcome the problems in evaluating interface bonding strength of an aluminum steel composite strips for a brazed heat exchanger by using tension shearing, tearing, pressure shearing or conventional methods, including fracture of the aluminum layer and difficulty in evaluation.
Description
Technical field
The invention belongs to meet metal material performance test technical field, more particularly to for interface cohesion
The equipment of strength test, and the method for testing of the interface bond strength realized using the equipment.
Background technology
Aluminum steel composite band material used by brazing heat exchanger is by being combined that aluminum, bimetal copper-steel are composited
Band, its finished product thickness is that between 1.3mm～1.6mm, cladding aluminum layer thickness is in 0.075mm～0.1mm
Between, it is very thin due to coating aluminum layer thickness, cut, tear using conventional drawing, compression shear etc. evaluates interface
The method of bond strength, aluminium lamination can rupture, it is difficult to evaluate, therefore to soldering aluminum steel in prior art
The evaluation of the interface bond strength of composite strip can only adopt bend test, but the bend test method can only
Qualitative detection evaluate aluminum steel interface bond strength whether meet the requirements, for need quantitatively judge bond strength
Experimentation and do not apply to.
Spirit of the invention and principle are, because the final purposes of aluminum steel composite band material is that soldering thereon dissipates
Hot fin, it is of the invention under industrial soldering system condition, in one layer of aluminum steel composite band material aluminum side soldering
4343/3003 aluminium alloy compound plate, thickness is 1mm～4mm, and 4343 thickness account for total thickness 8%～15%,
Thickness due to having thickeied aluminum steel composite band material aluminum side, so as to ensure to determine using methods such as traditional tears
Amount evaluates the bond strength at interface.But traditional tear mode aluminum steel angle of tear is unstable during tear,
Size variation, causes testing result fluctuating margin big, as a result unreliable, and different batches storeroom is difficult
Contrasted.
The content of the invention
The first object of the present invention is to provide a kind of equipment for interface bond strength test, to solve to pass
The tear mode aluminum steel angle of tear of system is unstable during tear, causes testing result fluctuating margin big,
As a result insecure technical problem.
The second object of the present invention is to provide a kind of aluminum steel composite band material interface bond strength method of testing, with
Solution can not be tested the interface bond strength of aluminum steel composite band material at present using tear mode, and
Traditional tear mode aluminum steel angle of tear is unstable during tear, causes testing result fluctuating margin big,
As a result insecure technical problem.
In order to realize above-mentioned first purpose, the present invention provides a kind of equipment for interface bond strength test,
The equipment is tested the interface bond strength of sample, and the sample includes the first shape be combineding with each other
Stratification and the second cambium layer；The equipment includes：Fixing device, carriage and sample holding device；
The fixing device includes pedestal, first bearing seat, second bearing seat, first rotating shaft and second turn
Axle；The first bearing seat is fixed on the pedestal, and it is relative that the first rotating shaft is arranged on two positions
First bearing seat between；The second bearing seat is fixed on the pedestal, and second rotating shaft is installed
Between the relative second bearing seat in two positions；The first rotating shaft and second rotating shaft are parallel to each other
Arrange；
The carriage includes guide rail and pulley；The guide rail is fixedly connected with the pedestal of fixing device；
The guide rail limits the pulley and moves along guide rail；
The sample holding device includes chassis and pressing plate, and the pulley of carriage is fixed on the chassis
Bottom；The pressing plate includes the first pressing plate and the second pressing plate, and first pressing plate is arranged on the one end on chassis,
For one end of sample to be fixed on into the chassis；Second pressing plate is arranged on the other end on chassis, uses
In first cambium layer or the second cambium layer of the other end of sample are fixed on into the chassis；
The distance between the first rotating shaft and chassis slightly larger than sample thickness, second rotating shaft and bottom
The distance between disk is more than the distance between first rotating shaft and chassis.
The equipment for being used for interface bond strength test as above of the invention, further, the specimen holder
Holding device also includes rule, and the rule is fixed on the chassis, and for measuring aluminum steel layer position is separated
Put the distance of change.
The equipment for being used for interface bond strength test as above of the invention, further, first pressure
Plate and the second pressing plate are bolted on respectively the chassis.
The equipment for being used for interface bond strength test as above of the invention, further, the sample bag
Include the aluminium lamination soldering connection of enhancement layer and aluminum steel composite band material, the enhancement layer and aluminum steel composite band material；Institute
The aluminium lamination for stating enhancement layer and aluminum steel composite band material is the first cambium layer, and the steel layer of aluminum steel composite band material is second
Cambium layer；Or the aluminium lamination of the enhancement layer and aluminum steel composite band material be the second cambium layer, aluminum steel composite band
The steel layer of material is the first cambium layer.
The equipment for being used for interface bond strength test as above of the invention, further, the enhancement layer
For aluminium alloy compound plate.Preferably, the aluminium alloy compound plate is 4343 aluminium alloys and 3003 aluminium alloys
Composite plate.
In order to realize above-mentioned second purpose, the present invention provides a kind of aluminum steel composite band material interface bond strength and surveys
Method for testing, methods described utilizes the equipment for interface bond strength test described in as above any one to carry out,
Comprise the following steps：
It is prepared by step 1, sample；Form to be tested in the aluminium lamination side soldering enhancement layer of aluminum steel composite band material
Sample, specimen width is d；The aluminium lamination of the enhancement layer and aluminum steel composite band material be the first cambium layer, aluminum steel
The steel layer of composite strip is the second cambium layer；Preferably, the enhancement layer is 4343 aluminium alloys and 3003
The composite plate of aluminium alloy；
Step 2, fixed sample；Divide first cambium layer and the second cambium layer of sample one end by prefabricated
From, the cambium layer of sample first and the second cambium layer are initially separated into position and are arranged on first rotating shaft lower section, try
The unsegregated one end of sample cambium layer is fixed on chassis by the first pressing plate；The detached one end of sample cambium layer
First cambium layer bypasses the second rotating shaft, and second cambium layer of the detached one end of sample cambium layer is by the second pressure
Plate is fixed on chassis；First cambium layer of the detached one end of sample cambium layer is applied using omnipotent mechanics machine
Constant force, speed is v；
Step 3, as a result calculates, and after test is stable, the first cambium layer is with the second cambial angle
β, then aluminum steel interface bond strength be calculated as follows, F combination=Fsin β/d.
The invention has the beneficial effects as follows：
When testing sample using bond strength test equipment in section of the present invention, start aluminum steel during detection
Angle of tear α gradually becomes β angles during stable tear with the movement of sample, and it is aluminum steel stably to tear state
Interface is initially separated, and the state of β angles steady change scope≤5% during stable tear so that inspection
Survey result is reliable and stable, different batches material bond strength result comparison is strong.
Due to the aluminium lamination side soldering enhancement layer in aluminum steel composite band material, brazing heat exchanger use is overcome
Aluminum steel composite band material cladding aluminum layer thickness is very thin, is cut, is torn using conventional drawing, compression shear etc. evaluates boundary
The method of face bond strength, aluminium lamination can rupture, it is difficult to the problem of evaluation.
Description of the drawings
By the detailed description made in conjunction with the following drawings, above-mentioned and/or other aspects of the present invention and excellent
Point will be apparent from and be easier to understand, and these accompanying drawings are simply schematic, are not intended to limit the present invention,
Wherein：
Fig. 1 is the equipment for interface bond strength test of an embodiment of the present invention when tear starts
Schematic diagram；
Fig. 2 is the equipment for interface bond strength test of an embodiment of the present invention when tear is stable
Schematic diagram；
Fig. 3 is the top view of the equipment for interface bond strength test of an embodiment of the present invention；
Fig. 4 is the sample structure schematic diagram of an embodiment of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, pedestal；
2nd, guide rail；
3rd, pulley；
4th, bearing block；
5th, rotating shaft；
6th, bolt；
7th, chassis；
8th, the second cambium layer；
9th, the first cambium layer；91st, 3003 aluminium alloy；92nd, 4343 aluminium alloy；93rd, aluminium lamination；
10th, pressing plate；
11st, rule.
Specific embodiment
Hereinafter, the equipment for interface bond strength test and the boundary of the present invention are described with reference to the accompanying drawings
The embodiment of the method for testing of face bond strength.
The embodiment that here is recorded is the specific specific embodiment of the present invention, for illustrating the present invention's
Design, is explanatory and exemplary, be should not be construed as to embodiment of the present invention and the scope of the invention
Restriction.Except the enforcement exception that here is recorded, those skilled in the art can also be wanted based on the application right
Book and description disclosure of that are asked using obvious other technical schemes, these technical scheme bags
Include the technical scheme for making any obvious substitutions and modifications using the embodiment recorded to here.
The accompanying drawing of this specification is schematic diagram, aids in illustrating the design of the present invention, it is schematically indicated each portion
The shape divided and its mutual relation.Note that for the ease of clearly showing each of the embodiment of the present invention
The structure of part, not according to the drafting of identical ratio between each accompanying drawing.Identical reference marker is used for table
Show identical part.
Fig. 1 illustrates the equipment for interface bond strength test of an embodiment of the present invention, the equipment
For testing the interface bond strength of sample, the sample includes the first cambium layer be combineding with each other
9 and second cambium layer 8；The equipment includes：Fixing device, carriage and sample holding device；
The fixing device include pedestal 1, bearing block 4 (including first bearing seat, second bearing seat),
Rotating shaft 5 (including first rotating shaft and the second rotating shaft)；The first bearing seat is fixed on the pedestal,
The first rotating shaft is arranged between two relative first bearing seats in position；The second bearing seat is fixed
On the pedestal, second rotating shaft is arranged between two relative second bearing seats in position；It is described
First rotating shaft and second rotating shaft are arranged in parallel；As shown in figure 1, the quantity of first bearing seat is
Two, the quantity of second bearing seat is two, also, the line and second bearing between first bearing seat
Line distance between seat is L.
The carriage includes guide rail 2 and pulley 3；The guide rail 2 is consolidated with the pedestal 1 of fixing device
Fixed connection；The guide rail 2 limits the pulley 3 and moves along guide rail；As shown in figure 1, the quantity of pulley
For four, chassis lower section is equidistantly fixed on.In a kind of implementation process, have on the bracing frame of pulley
Spacing hole, spacing hole passes through guide rail, while pulley and base into contact, can slide walking on pedestal.
As shown in figure 3, the sample holding device includes chassis 7 and pressing plate 10, the pulley of carriage
3 bottoms for being fixed on the chassis 7；The pressing plate 10 includes the first pressing plate and the second pressing plate, described the
One pressing plate is arranged on the one end on chassis, for one end of sample to be fixed on into the chassis；Second pressure
Plate is arranged on the other end on chassis, for by first cambium layer 9 or the second cambium layer of the other end of sample
8 are fixed on the chassis；
The distance between the first rotating shaft 5 and chassis 7 slightly larger than sample thickness, second rotating shaft
The distance between 5 and chassis 7 are more than the distance between first rotating shaft and chassis.Can be seen that in Fig. 1
Difference in height between first rotating shaft and the second rotating shaft is h.
In the equipment for interface bond strength test of the above embodiment of the present invention, the sample holder
Device also includes rule 11, and the rule 11 is fixed on the chassis 7, for measuring aluminum steel layer
The distance of separation point position change..Projection of the rule with first rotating shaft and the second rotating shaft on chassis is mutually hung down
It is straight to arrange.
In the equipment for interface bond strength test of the above embodiment of the present invention, first pressing plate
10 and second pressing plate 10 respectively the chassis 7 is fixed on by bolt 6.
In the equipment for interface bond strength test of the above embodiment of the present invention, the sample includes
The aluminium lamination soldering connection of enhancement layer and aluminum steel composite band material, the enhancement layer and aluminum steel composite band material；As schemed
Shown in 4, the aluminium lamination of the enhancement layer and aluminum steel composite band material is the first cambium layer 9, aluminum steel composite band material
Steel layer 93 be the second cambium layer 8；Or the aluminium lamination of the enhancement layer and aluminum steel composite band material is the second shape
Stratification 8, the steel layer of aluminum steel composite band material is the first cambium layer 9.
When needing to test the sample including aluminum steel composite band material, in order to realize enhancement layer and aluminum steel
The strength of brazed joint of aluminium lamination in composite strip, the enhancement layer is aluminium alloy compound plate.Preferably, institute
State the composite plate that aluminium alloy compound plate is 4343 aluminium alloys 92 and 3003 aluminium alloys 91.
Aluminum steel composite band material interface bond strength method of testing is carried out using the above embodiment of the present invention equipment,
Comprise the following steps：
It is prepared by step 1, sample；Form to be tested in the aluminium lamination side soldering enhancement layer of aluminum steel composite band material
Sample, specimen width is d；The aluminium lamination of the enhancement layer and aluminum steel composite band material be the first cambium layer, aluminum steel
The steel layer of composite strip is the second cambium layer；Preferably, the enhancement layer is 4343 aluminium alloys and 3003
The composite plate of aluminium alloy；
Step 2, fixed sample；Divide first cambium layer and the second cambium layer of sample one end by prefabricated
From, the cambium layer of sample first and the second cambium layer are initially separated into position and are arranged on first rotating shaft lower section, try
The unsegregated one end of sample cambium layer is fixed on chassis by the first pressing plate；The detached one end of sample cambium layer
First cambium layer bypasses the second rotating shaft, and second cambium layer of the detached one end of sample cambium layer is by the second pressure
Plate is fixed on chassis；During on-test, the first cambium layer and the second cambial angle are α (such as Fig. 1
In illustrate), constant is applied to first cambium layer of the detached one end of sample cambium layer using omnipotent mechanics machine
Power, speed is v；
Step 3, as a result calculates, and after test is stable, the first cambium layer is with the second cambial angle
β, then aluminum steel interface bond strength be calculated as follows, F combination=Fsin β/d.
When testing sample using bond strength test equipment in section of the present invention, start aluminum steel during detection
Angle of tear α with the β angles (as illustrated in Fig. 2) when the movement of sample gradually becomes stable tear, surely
Surely tear state be that aluminum steel interface is initially separated, and β angles during stable tear steady change scope≤
5% state so that testing result is reliable and stable, the bond strength result comparison of different batches material is strong.
Due to the aluminium lamination side soldering enhancement layer in aluminum steel composite band material, brazing heat exchanger use is overcome
Aluminum steel composite band material cladding aluminum layer thickness is very thin, is cut, is torn using conventional drawing, compression shear etc. evaluates boundary
The method of face bond strength, aluminium lamination can rupture, it is difficult to the problem of evaluation.
Each technical characteristic of above-mentioned disclosure is not limited to disclosed and further feature combination, this area skill
Art personnel can also according to the purpose of invention carry out between each technical characteristic other combination, to realize the present invention
Purpose be defined.
Claims (8)
1. a kind of equipment for interface bond strength test, the equipment is used to tie the interface of sample
Close intensity to be tested, the sample includes the first cambium layer and the second cambium layer be combineding with each other；It is described
Equipment includes：Fixing device, carriage and sample holding device, it is characterised in that：
The fixing device includes pedestal, first bearing seat, second bearing seat, first rotating shaft and second turn
Axle；The first bearing seat is fixed on the pedestal, and it is relative that the first rotating shaft is arranged on two positions
First bearing seat between；The second bearing seat is fixed on the pedestal, and second rotating shaft is installed
Between the relative second bearing seat in two positions；The first rotating shaft and second rotating shaft are parallel to each other
Arrange；
The carriage includes guide rail and pulley；The guide rail is fixedly connected with the pedestal of fixing device；
The guide rail limits the pulley and moves along guide rail；
The sample holding device includes chassis and pressing plate, and the pulley of carriage is fixed on the chassis
Bottom；The pressing plate includes the first pressing plate and the second pressing plate, and first pressing plate is arranged on the one end on chassis,
For one end of sample to be fixed on into the chassis；Second pressing plate is arranged on the other end on chassis, uses
In first cambium layer or the second cambium layer of the other end of sample are fixed on into the chassis；
The distance between the first rotating shaft and chassis slightly larger than sample thickness, second rotating shaft and bottom
The distance between disk is more than the distance between first rotating shaft and chassis.
2. it is according to claim 1 for interface bond strength test equipment, it is characterised in that
The sample holding device also includes rule, and the rule is fixed on the chassis, for measuring aluminum
The distance of steel layer separation point position change.
3. it is according to claim 1 for interface bond strength test equipment, it is characterised in that
First pressing plate and the second pressing plate are bolted on respectively the chassis.
4. according to any one of claim 1-3 for interface bond strength test equipment, its
It is characterised by, the sample includes enhancement layer and aluminum steel composite band material, the enhancement layer and aluminum steel composite band
The aluminium lamination soldering connection of material；The aluminium lamination of the enhancement layer and aluminum steel composite band material be the first cambium layer, aluminum steel
The steel layer of composite strip is the second cambium layer；Or the aluminium lamination of the enhancement layer and aluminum steel composite band material is the
Two cambium layer, the steel layer of aluminum steel composite band material is the first cambium layer.
5. the equipment of interface bond strength test is used for according to claim 4, it is characterised in that
The enhancement layer is aluminium alloy compound plate.
6. the equipment of interface bond strength test is used for according to claim 5, it is characterised in that
The aluminium alloy compound plate is the composite plate of 4343 aluminium alloys and 3003 aluminium alloys.
7. a kind of aluminum steel composite band material interface bond strength method of testing, it is characterised in that methods described
Carry out for the equipment of interface bond strength test using described in claim any one of 1-3, including with
Lower step：
It is prepared by step 1, sample；Form to be tested in the aluminium lamination side soldering enhancement layer of aluminum steel composite band material
Sample, specimen width is d；The aluminium lamination of the enhancement layer and aluminum steel composite band material be the first cambium layer, aluminum steel
The steel layer of composite strip is the second cambium layer；
Step 2, fixed sample；First cambium layer of sample one end and second is formed by prefabrication process
Layer is separated, and the cambium layer of sample first and the second cambium layer is initially separated into position and is arranged on first rotating shaft lower section,
The unsegregated one end of sample cambium layer is fixed on chassis by the first pressing plate；The detached one end of sample cambium layer
The first cambium layer bypass the second rotating shaft, second cambium layer of the detached one end of sample cambium layer passes through second
Pressing plate is fixed on chassis；First cambium layer of the detached one end of sample cambium layer is applied using omnipotent mechanics machine
Plus constant force, speed is v；
Step 3, as a result calculates, and after test is stable, the first cambium layer is with the second cambial angle
β, then aluminum steel interface bond strength be calculated as follows, F combination=Fsin β/d.
8. the equipment of interface bond strength test is used for according to claim 7, it is characterised in that
The enhancement layer is the composite plate of 4343 aluminium alloys and 3003 aluminium alloys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761174.4A CN106680201B (en) | 2015-11-10 | 2015-11-10 | For the equipment of interface bond strength test and the test method of interface bond strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761174.4A CN106680201B (en) | 2015-11-10 | 2015-11-10 | For the equipment of interface bond strength test and the test method of interface bond strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106680201A true CN106680201A (en) | 2017-05-17 |
| CN106680201B CN106680201B (en) | 2019-05-21 |
Family
ID=58864535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510761174.4A Active CN106680201B (en) | 2015-11-10 | 2015-11-10 | For the equipment of interface bond strength test and the test method of interface bond strength |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106680201B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105758791A (en) * | 2016-03-01 | 2016-07-13 | 银邦金属复合材料股份有限公司 | Device and method for measuring bonding strength of metal composite interface, sample and manufacturing method for sample |
| CN108387445A (en) * | 2018-01-24 | 2018-08-10 | 西北工业大学 | Laminar composite interface bond strength test method and test device |
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| CN108387445A (en) * | 2018-01-24 | 2018-08-10 | 西北工业大学 | Laminar composite interface bond strength test method and test device |
| CN108387445B (en) * | 2018-01-24 | 2022-04-15 | 西北工业大学 | Method and device for testing interface bonding strength of layered composite material |
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| Publication number | Publication date |
|---|---|
| CN106680201B (en) | 2019-05-21 |
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