CN109870406A - A kind of material surface coating adhesion test method and system - Google Patents
A kind of material surface coating adhesion test method and system Download PDFInfo
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Abstract
The present invention relates to a kind of material surface coating adhesion test method and systems.Design of the invention realize different temperature rise rates and at a temperature of material surface coating adhesion quick precise measurement and temperature rise rate it is adjustable.The system includes adhesion-force tester power load spindle, fixed mesa, multiple pinboards, the first thermal imaging system, the second thermal imaging system and heated light sources, realizes goal of the invention by following abstract step: 1) making multiple samples to be tested；2) temperature curve and temperature equilibrium time of coat side under different heating parameters are demarcated by any sample to be tested；3) coating adhesion detection is carried out to remaining sample to be tested.
Description
Technical field
The invention belongs to physical test method field, it is related to a kind of material surface coating adhesion test method and system.
Background technique
Metal, composite material etc. are widely used in each field, wherein surface needs coating coating when many fields are applied,
And it can also be related to the application under hot conditions in certain occasions.By the coating adhesion test under high temperature, spy can be simulated
Determine the situation of change of material surface coating attachment characteristic under operating condition, is coating damage mechanism study, performance optimization, process modification etc.
Reference is provided.Existing coating attachment characteristic test method mainly has scarification, cross-hatching, indentation method, pulls open method etc., these tests
Method has his own strong points, but the coating adhesion test being mainly used under room temperature.It is existing to the coating adhesion test under different temperatures
There is method to be all made of sample is placed on heating in high temperature furnace and takes out the method tested after Long Time Thermal balances.
But existing method temperature rise rate is low, long-time heating may be such that coating is modified, and be unable to characterize coating and exist
Feature under high temperature rise rate；Sample temperature in taking-up and test process continues to decline simultaneously, causes actual test temperature low
It is poor and unstable so as to cause measuring accuracy in set temperature.
Summary of the invention
To solve the above-mentioned problems, it the present invention provides a kind of material surface coating adhesion test macro and method, adopts
With non-contact thermal mode, realize different temperature rise rates and at a temperature of material surface coating adhesion quick precise measurement and
Temperature rise rate is adjustable.
Technical solution of the invention are as follows:
The present invention provides a kind of material surface coating adhesion test methods, comprising the following steps:
1) multiple samples to be tested are made；
1.1) by substrate cut at regular shape, the upper surface for defining substrate is the coat side of sample to be tested；Under substrate
Surface is the first heating surface of sample to be tested；Side wall is the second heating surface of sample to be tested；
1.2) first heating surface and the second heating surface are handled, is formed on its surface several uniformly distributed pittings；
1.3) high temperature resistant absorber coatings are sprayed on the first heating surface and the second heating surface；
1.4) coating to be measured is sprayed in coat side, complete sample to be tested；
1.5) multiple samples to be tested are made using step 1.1-1.4；
2) temperature curve and temperature equilibrium time of coat side under different heating parameters are demarcated；
2.1) any one sample to be tested is chosen, and is fixed；
2.2) it is bonded adhesion-force tester power in sample to be tested coat side and loads spindle；
2.3) continuous heating is carried out to the first heating surface of sample to be tested and the second heating surface by heated light sources, respectively benefit
The temperature of the first heating surfaces and coat side is measured with two thermal imaging systems, thus obtain coat side temperature curve and temperature it is flat
It weighs the time；
2.4) heated light sources output power, coat side temperature curve and temperature under the conditions of acquisition different heating parameters are adjusted
Equilibration time；
Temperature equilibrium time is coat side maximum temperature TmaxIt tends towards stability the required time；
The judgment basis of temperature equilibrium time is all satisfied requirement of experiment for the temperature deviation of coat side and the first heating surface；
The temperature deviation is less than 5%Tmax；
3) coating adhesion detection is carried out to remaining sample to be tested；
3.1) it is bonded adhesion-force tester power in sample to be tested coat side and loads spindle；
3.2) according to calibration obtain temperature curve, set heated light sources output power and out light when between, to first, second
Heating surface carries out continuous heating, measures the Temperature Distribution of the first heating surface and coat side respectively using two thermal imaging systems, and pass through
Data collecting instrument real-time monitoring records temperature signal；
When the temperature deviation of the coat side measured and the first heating surface is respectively less than regulation amplitude, starting adhesive force test
Instrument, carries out coating adhesion test, and the adhesion value of acquisition is the adhesive force under current impose a condition.
Further, above-mentioned heated light sources include laser or quartzy lamp array.
Herein it should be noted is that:
If sample to be tested is metal material or the composite material with metallic substrates, without carrying out table to sample to be tested
Surface treatment and spraying high temperature resistant absorber coatings, can directly adopt electromagnetic induction heater and heat to sample to be tested.
Further, above-mentioned steps 1.2) specifically processing mode is blasting treatment, but is not limited to the mode of blasting treatment.
Further, the material of above-mentioned 1.3) high temperature resistant laser absorption coating is graphite, but is not limited to graphite material.
Further, above-mentioned regular shape is square or round.
Based on the above method, the present invention also provides a kind of test macro for realizing this method, the test macro packets
Include: adhesion-force tester power loads spindle, fixed mesa, multiple pinboards, the first thermal imaging system, the second thermal imaging system and heating light
Source；
Through-hole compatible with sample to be tested shape is offered in the middle part of fixed mesa；Sample to be tested is square or justifies
Shape, sample to be tested upper surface are coat side, and lower surface is the first heating surface, and side wall is the second heating surface；
One end of each pinboard is fixedly connected with sample to be tested, and the other end is connect with fixed mesa, to will be tested
Sample is fixed on the underface of the through-hole；
Heated light sources are for heating tested sample；
Adhesion-force tester power load spindle is fixedly bonded to the coat side of tested sample, and is located at tested sample coat side
Center；
The top that first thermal imaging system is mounted on tested sample is used to detect the temperature of tested sample coat side；
The lower section that second thermal imaging system is mounted on tested sample is used to detect the temperature of the first heating surface of tested sample.
Further, above-mentioned heated light sources include laser or quartzy lamp array.
Herein it should be noted is that:
If sample to be tested is metal material or the composite material with metallic substrates, without carrying out table to sample to be tested
Surface treatment and spraying high temperature resistant absorber coatings, can directly adopt electromagnetic induction heater and heat to sample to be tested.
Further, in order to improve the heating efficiencies of heated light sources, sample to be tested temperature is made faster to reach uniform balance, on
The system of stating further includes total reflection mirror, and the total reflection mirror is mounted on around tested sample, the heating for being emitted heated light sources
Light reflexes on the side wall of tested sample, and when sample to be tested is circle, total reflection mirror is ring taper, when sample to be tested is pros
Total reflection mirror is four pieces and is located at sample to be tested front, rear, left and right four direction when shape.
Further, to avoid unabsorbed heating light from impacting the connection electric wire etc. in system, the system is also
Including light barrier, the light barrier is mounted between total reflection mirror and sample to be tested, is leaked out sample to be tested for absorbing and is all-trans
Penetrate the heating light of mirror.
Further, above-mentioned first heating surface and the equal spraying graphite material of the second heating surface.
The invention has the following advantages:
1, the present invention is based on method is pulled open, using non-contact thermal mode, different temperature rise rates material at a temperature of is realized
The quick precise measurement and temperature rise rate of surface covering adhesive force are adjustable, avoid existing method and first heat in heating furnace, is laggard
The test of row adhesive force brings the problems such as time-consuming and temperature is unstable.
2, system of the invention, structure is simple, is easy to build, and convenient for operation.
Detailed description of the invention
Fig. 1 is the layout of material surface coating adhesion test macro；
Fig. 2 is tested sample main view fixed on fixed mesa；
Fig. 3 is tested sample top view fixed on fixed mesa.
Appended drawing reference is as follows:
1- adhesion-force tester power loads spindle；2- fixed mesa；3- pinboard, the first thermal imaging system of 4-；The second thermal imagery of 5-
Instrument；6- heats light；7- sample to be tested；8- coat side；The first heating surface of 9-；10- square through-hole；11- total reflection mirror；12- gear
Tabula rasa；13- tapped blind hole；14- fastening screw.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Referring to Fig. 1, a set of test macro is first constructed in the present embodiment first comprising adhesion-force tester power loads ingot
Son 1, fixed mesa 2, multiple pinboards 3, the first thermal imaging system 4, the second thermal imaging system 5 and heated light sources；
Heated light sources can choose laser or quartzy lamp array；Heated light sources select laser in this example.
Sample to be tested 7 is square or circle, and the shape of sample to be tested 7 is square in this example；Square sample to be tested 7
Upper surface be coat side 8, lower surface is the first heating surface 9, and side wall is the second heating surface, the first heating surface 9 and the second heating
Graphite material is coated on face.
Referring to fig. 2,3, it is logical that the middle part of fixed mesa 2 offers square compatible with square 7 shape of sample to be tested
Hole 10 (square through-hole side length is slightly larger than sample to be tested side length)；One end of each pinboard 3 is connected by fixing with sample to be tested 7
It connects, the other end connect (fixation of the above two sides is all made of the mode of threaded connection) with fixed mesa 2, thus by tested sample 7
It is fixed on the underface of the through-hole 10；
Laser is used to provide heating light 6 to tested sample 7；
Adhesion-force tester power load spindle 1 is fixedly bonded to the coat side 8 of tested sample, and is located at tested sample coating
The middle part in face 8；
The top that first thermal imaging system 4 is mounted on tested sample 7 is used to detect the temperature of tested sample coat side 8；Second heat
As lower section that instrument 5 is mounted on tested sample 7 is used to detect temperature (the first thermal imaging system 4 and the of the first heating surface 9 in tested sample
Two thermal imaging systems 5 should all have temperature measurement on-line ability).
Based on above-mentioned basic structure, above system is also made that following optimization:
1, in order to improve the heating efficiency of laser, sample to be tested temperature is made faster to reach uniform balance, which further includes
Total reflection mirror 11, total reflection mirror 11 are mounted on around tested sample 7, for by the side wall (i.e. of laser reflection to tested sample
Two heating surfaces) on；When sample to be tested is circle, total reflection mirror is ring taper, and when sample to be tested is square, total reflection mirror is
Four and it is located at sample to be tested front, rear, left and right four direction.
2, in order to avoid unabsorbed laser impacts the connection electric wire etc. in system, which further includes light-blocking
Plate 12, light barrier 12 are mounted between total reflection mirror 11 and sample to be tested 7, leak out sample to be tested 7 and total reflection mirror for absorbing
11 laser.Light barrier 12 is the material of resistance to laser ablation, selects graphite material in this example.
The test macro of base in this present embodiment, now to the side for carrying out the test of material surface coating adhesion using the system
Method is described in detail:
Step 1) makes multiple samples to be tested 7；
By substrate cut, at square, (the square side length after cutting is adhesion-force tester power load spindle to step 1.1)
The 2 times or more of 1 diameter, with guarantee adhesion-force tester power load spindle 1 be bonded in sample to be tested 7 it is intermediate when, 7 table of sample to be tested
Face measures for coating temperature there are enough spaces and fixes with sample to be tested), the upper surface for defining substrate is coat side 8；Base
The lower surface of plate is the first heating surface 9 of sample to be tested；Side wall is the second heating surface of sample to be tested；
Step 1.2) is surface-treated (the processing side in the present embodiment to first heating surface 9 and the second heating surface
Formula is blasting treatment, but is not limited to sandblasting), so that several uniformly distributed pittings are formed in the first heating surface 9 and the second heating surface, to disappear
Except high temperature resistant laser absorption breakdown of coating problem caused by thermal expansion coefficient difference；
Step 1.3) sprays high temperature resistant laser absorption coating (the high temperature resistant laser in the present embodiment on laser absorption face 9
Absorber coatings are graphite, but are not limited to graphite)；
Step 1.4) sprays coating to be measured in coat side, and complete sample to be tested；
Step 1.5) uses step 1.1-1.4) the multiple samples to be tested 7 of production；
Any one sample to be tested 7 is mounted in above-mentioned test macro by step 2)；
Step 2.1) opens up tapped blind hole 13 on 7 four angles of tested sample, with fastening screw 14 that tested sample 7 is fixed
In high temperature resistant and the low pinboard 3 of thermal conductivity；
Sample to be tested 7 is fixed on fixed mesa 2 by step 2.2) by pinboard 3；
Step 3) demarcates the temperature curve and temperature equilibrium time of coat side under different heating parameters；
Step 3.1) is bonded adhesion-force tester power load spindle 1 in sample to be tested coat side 8；
The laser 6 of laser emitting is homogenized shaping by step 3.2), to the first heating surface 9 of sample to be tested and the second heating
Face carries out continuous heating, is utilized respectively the second thermal imaging system and the first thermal imaging system measures the temperature of the first heating surface 9 and coat side,
To obtain the temperature curve and temperature equilibrium time of coat side；
Step 3.3) adjusts laser power density, obtains coat side temperature curve and equalized temperature under different heating parameters
Time；
Temperature curve temperature equilibrium time is coat side maximum temperature T under a certain laser power PmaxIt tends towards stability required
Time；Judgment basis whether temperature condition meets is respectively less than specified value for the temperature deviation of coat side and the first heating surface 9；
Preferably, temperature deviation is less than 5%Tmax；
Step 4) carries out coating adhesion detection to remaining sample to be tested 7；
Step 4.1) installs sample to be tested 7 to test macro according to step 2)；
Step 4.2) is bonded attachment dynamometry examination instrument power load spindle 1 in 7 coat side of sample to be tested；
The temperature curve that step 4.3) is obtained according to calibration sets laser output power and irradiation time, utilizes laser pair
Sample to be tested the first heating surface 9 and the second heating surface carry out continuous heating, measure sample to be tested the respectively using two thermal imaging systems
The Temperature Distribution of one heating surface 9 and sample to be tested coat side 8, and temperature signal is recorded by data collecting instrument real-time monitoring；
When the temperature deviation of the coat side 8 measured and the first heating surface 9 is respectively less than regulation amplitude, starting adhesive force is surveyed
Instrument is tried, coating adhesion test is carried out, the adhesion value of acquisition is the adhesive force under current impose a condition.
If sample to be tested is metal material or the composite material with metallic substrates, without resistance to sample to be tested spraying
Electromagnetic induction heater can be used in high temperature absorber coatings, heated light sources, using electromagnetic induction heater directly to be tested
Sample is heated.
Claims (10)
1. a kind of material surface coating adhesion test method, which comprises the following steps:
1) multiple samples to be tested (7) are made；
1.1) by substrate cut at regular shape, the upper surface for defining substrate is the coat side (8) of sample to be tested (7)；Substrate
Lower surface is first heating surface (9) of sample to be tested (7)；Side wall is second heating surface of sample to be tested (7)；
1.2) first heating surface (9) and the second heating surface are handled, is formed on its surface several uniformly distributed pittings；
1.3) high temperature resistant absorber coatings are sprayed on the first heating surface (9) and the second heating surface；
1.4) coating to be measured, the sample to be tested that completes (7) are sprayed in coat side (8)；
1.5) step 1.1) -1.4 is used) the multiple samples to be tested (7) of production；
2) temperature curve and temperature equilibrium time of coat side (8) under different heating parameters are demarcated；
2.1) any one sample to be tested (7) is chosen, and is fixed；
2.2) adhesion-force tester power load spindle (1) is bonded in sample to be tested (7) coat side (8)；
2.3) continuous heating is carried out to the first heating surface (9) of sample to be tested (7) and the second heating surface by heated light sources, respectively
Using two thermal imaging system measurements the first heating surface (9) and the temperature of coat side (8), so that the temperature for obtaining coat side (8) is bent
Line and temperature equilibrium time；
2.4) heated light sources output power, coat side (8) temperature curve and temperature under the conditions of acquisition different heating parameters are adjusted
Equilibration time；
Temperature equilibrium time is coat side (8) maximum temperature TmaxIt tends towards stability the required time；
The judgment basis of temperature equilibrium time is coat side (8) and the temperature deviation of the first heating surface (9) is all satisfied experiment and wants
It asks；
The temperature deviation is less than 5%Tmax；
3) coating adhesion detection is carried out to remaining sample to be tested (7)；
3.1) adhesion-force tester power load spindle (1) is bonded in sample to be tested (7) coat side (8)；
3.2) according to calibration obtain temperature curve, set heated light sources output power and out light when between, to the first heating surface
(9), the second heating surface carries out continuous heating, measures the temperature of the first heating surface (9) and coat side (8) respectively using two thermal imaging systems
Degree distribution, and temperature signal is recorded by data collecting instrument real-time monitoring；
When the temperature deviation of the coat side (8) and the first heating surface (9) that measure is respectively less than regulation amplitude, starting adhesive force is surveyed
Instrument is tried, coating adhesion test is carried out, the adhesion value of acquisition is the adhesive force under current impose a condition.
2. material surface coating adhesion test method according to claim 1, it is characterised in that: the heated light sources packet
Include laser or quartzy lamp array.
3. material surface coating adhesion test method according to claim 1, it is characterised in that: step 1.2) is specific
Processing mode is blasting treatment.
4. material surface coating adhesion test method according to claim 1, it is characterised in that: the high temperature resistant absorbs
The material of coating is graphite.
5. material surface coating adhesion test method according to claim 1, it is characterised in that: the regular shape is
Square is round.
6. a kind of material surface coating adhesion test macro, it is characterised in that: load spindle including adhesion-force tester power
(1), fixed mesa (2), multiple pinboards (3), the first thermal imaging system (4), the second thermal imaging system (5) and heated light sources；
Through-hole compatible with sample to be tested (7) shape is offered in the middle part of fixed mesa (2)；Sample to be tested (7) is square
Or it is round, sample to be tested (7) upper surface is coat side (8), and lower surface is the first heating surface (9), and side wall is the second heating surface；
One end of each pinboard (3) is fixedly connected with sample to be tested (7), and the other end is connect with fixed mesa (2), thus will be by
Test specimens are fixed on the underface of the through-hole；
Heated light sources are used to carry out irradiated heat to tested sample；
Adhesion-force tester power load spindle (1) is fixedly bonded to the coat side (8) of tested sample, and is located at tested sample coating
The center in face (8)；
The top that first thermal imaging system (4) is mounted on tested sample is used to detect the temperature of tested sample coat side (8)；
The lower section that second thermal imaging system (5) is mounted on tested sample is used to detect the temperature of the first heating surface of tested sample (9).
7. material surface coating adhesion test macro according to claim 6, it is characterised in that: the heated light sources packet
Include laser or quartzy lamp array.
8. material surface coating adhesion test macro according to claim 7, it is characterised in that: further include total reflection mirror
(11), the total reflection mirror (11) is mounted on around tested sample, and the heating light for being emitted heated light sources reflexes to tested
On the side wall of sample.
9. material surface coating adhesion test macro according to claim 8, it is characterised in that: further include light barrier
(12), the light barrier (12) is mounted between heated light sources and sample to be tested (7), for absorb leak out sample to be tested (7) and
The heating light of total reflection mirror (11).
10. material surface coating adhesion test macro according to claim 9, it is characterised in that: first heating
Face (9) and the equal spraying graphite material of the second heating surface.
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| CN116851908A (en) * | 2023-09-01 | 2023-10-10 | 天蔚蓝电驱动科技(江苏)有限公司 | Optimization method for improving coating adhesion by laser surface treatment and processing method |
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