CN101074918A - Method for testing high-combination performance coating strength based on pressure experimental device and its sample - Google Patents
Method for testing high-combination performance coating strength based on pressure experimental device and its sample Download PDFInfo
- Publication number
- CN101074918A CN101074918A CN 200710024610 CN200710024610A CN101074918A CN 101074918 A CN101074918 A CN 101074918A CN 200710024610 CN200710024610 CN 200710024610 CN 200710024610 A CN200710024610 A CN 200710024610A CN 101074918 A CN101074918 A CN 101074918A
- Authority
- CN
- China
- Prior art keywords
- coating
- sample
- cone
- bracing ring
- taper hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A method for testing bond strength of coating layer includes preparing cone-column integrated body and stepped support circle, using mechanical process to make end surface of big end on cone body in cone-column integrated body be on the same plane as end surface of small step body on stepped support circle, preparing tested coating layer on said plane, sticking a metal reinforced plate on coating layer, setting test piece directly on pressure tester to carry out push-press test form measuring out bond strength of coating layer. The test piece used in said method is also disclosed.
Description
Technical field
The present invention relates to a kind of method of testing materials and sample thereof, relate in particular to the high strength bond force test method and the sample of a kind of coating and matrix, specifically a kind of method for testing high-combination performance coating strength based on pressure experimental device.
Background technology
The quantitatively characterizing of coating and matrix material interface mechanical characteristic is the target that researcher and user pursue always, is that field of surface engineering technique is badly in need of one of key issue that solves.The quantitative test of coating and high base strength has very important theory significance and realistic meaning to estimating coating quality, optimal preparation technology and development new coating technology.
The restriction of tested person condition and method, present test and preparation method of sample about coating and substrate combinating strength, mostly based on using tackifier and stretching to carry out the adhesion test, this method is owing to have flexibly simple to operate and do not need the characteristics of complicated Theoretical Calculation, quilt is the many countries such as the U.S. in the world, Japan, Russia and China etc. generally adopt, but this method is owing to be subjected to the restriction of the tensile strength (generally being no more than 80Mpa) of glue, be not suitable for the test of high-combination performance coating strength, therefore, existing method of testing lags behind the development of coat preparing technology far away.At this problem, successively conduct a research both at home and abroad, be conceived to the method for testing that glue (eliminating the restriction of glue tensile strength) do not adopted in exploitation.Scarification is favored at first, finds that afterwards this method physical significance is indeterminate, and resulting data are relatively disperseed, and are difficult to effective evaluation coating bonding properties.Occur methods such as ball-pressure method, imprint method, interface plunging afterwards, but because in these test methods, the stress complexity of sample, the assessment parameters of coating and matrix bond performance are difficult to calculate, these methods still under discussion.In the process of developing the method for testing that does not adopt glue, the pre-buried method of test specimen has caused the attention of countries in the world, the bipyramid method (Fig. 2) that incremental launching method (Fig. 1) that proposes as Russian scientist and ZL00107205.6 propose etc., but these method ubiquity composite samples fully reaction coating time of day and the restriction that is subjected to coating self shear resistance can not be used for shallow layer and test or the like deficiency.And, because specimen preparation is unreasonable, have structural defective, can't eliminate and use and can eccentric force occur in the drawing machine drawing process and influence test accuracy as crossing location, matching defect, the repeatability of test be not high or the like and limited it and applied.
Therefore, up to the present, do not obtain as yet a kind of practical, influence factor is little, characterization parameter is easy and the quantitative measuring method that can be used for high-combination performance coating strength of explicit physical meaning and relevant sample can be for promoting, can't adapt to the development of coating technology, and restrict the progress of coating technology to a certain extent.
Summary of the invention
The objective of the invention is at the error that exists in the existing high-combination performance coating adhesion test big, problems such as sample structure is unreasonable are invented a kind of method for testing high-combination performance coating strength based on pressure experimental device that is widely used in the test of high-combination performance coating adhesion.
Technical scheme of the present invention is:
A kind of method for testing high-combination performance coating strength based on pressure experimental device is characterized in that:
At first get the sample identical with matrix material and be processed into a sample blank of being made up of cone and right cylinder, wherein right cylinder links to each other with the small end of cone is whole, and the cone angle of cone is between 2 times matrix material angle of friction and 120 is spent;
Secondly, the said sample blank is placed a step bracing ring that has identical cone angle taper hole, the conical section of sample blank is matched with this taper hole, the big stepped diameters of this step bracing ring is 2～4 times of taper hole end diameter wherein, the difference of small stair diameter and taper hole outside diameter is 3～8mm, and the height of small stair is 1～8mm;
The 3rd, above-mentioned sample blank of working good and bracing ring placed carry out machining on lathe or the grinding machine, the part that excision sample blank stretches out the small stair end face flushes the surface of sample blank and small stair end face, obtains the sample semi-manufacture;
The 4th, on the surface of the processed mistake of said sample semi-manufacture, prepare coating, make coating cover bracing ring small stair end face and the big end end face of sample blank cone all, simultaneously, obtain sample;
The 5th, when the thickness value up to specification of coating, said sample directly placed and push test on the pressure experimental device, peel off with big end of sample blank cone and bracing ring small stair end face up to coating, can record matrix and coating's adhesion; When the thickness of coating is lower than setting, at first on the surface of coating, be coated with upper glue layer, and then stickup one thickness is the reinforcement metal plate of 1～3mm on glue-line, treat again it directly to be placed after its bonding firmly and push test on the pressure experimental device, peel off with big end of sample blank cone and bracing ring small stair end face up to coating, can record matrix and coating's adhesion.
A kind of high-combination performance coating strength test sample based on pressure experimental device, it is characterized in that it is mainly by step-like bracing ring, awl-post combination and coating are formed, be provided with a taper hole in the described bracing ring, the big end of taper hole is positioned on the small stair body, the difference of the diameter of small stair body and taper hole outside diameter is 3～8mm, the height of small stair body is 1～8mm, the diameter of big step body is 2～4 times of taper hole end diameter, the cone angle of the conical section of awl-post combination is identical with the cone angle of taper hole in the bracing ring, its conical section is arranged in step-like bracing ring, its cylinder part links to each other with the small end of cone and is positioned at outside the step-like bracing ring, the end face of big end end face of the cone of awl-post combination and small stair body is in the same plane, and preparation has coating on this plane.
On described coating, be provided with glue-line, be bonded with metal reinforcing plates on the glue-line.
Beneficial effect of the present invention:
(1) measuring method of the present invention does not adopt glue, and its measurement result is not subjected to the restriction of the tensile strength of glue, can be used for the measurement of high-combination performance coating strength;
(2) measuring method physical significance of the present invention is simply clear and definite, convenient and flexible operation, and do not need complicated Theoretical Calculation;
(3) measuring method of the present invention is main stress at the measuring process floating coat with compressive stress, coating cohesive strength under action of compressive stress is generally 3～5 times of tension, the useful area that while coating and matrix are peeled off is less, and increased stiffening plate at shallow layer, measured the restriction that is not subjected to coating thickness substantially;
(4) sample that uses of measuring method of the present invention adopts full cone match structure, has eliminated that friction force has improved the accuracy of measurement result to the influence of measurement result in the pushing process;
(5) clearly provided definite method of cone angle, adopted more rational cone angle, strengthened the adaptability of method of testing the different matrix material for the different matrix material.
(6) the present invention is by a large amount of tests, provided the relation between cone angle, taper hole end diameter and the big stepped diameters of bracing ring, taper hole outside diameter and little the footpath diameter.Adopt the good reproducibility of the disclosed prepared sample of proportion relation, fully shown the accuracy of its measurement, can be used for actual engineer operation.
(7) the present invention has proposed directly to utilize pressure experimental device as the test force-multiplier tool first, and it has convenient mounting and clamping, and acting force is even, can not produce eccentric force, more can not produce friction force in application of force process and influences the accuracy of estimating.
(8) the present invention is by being designed to sample the structure that cone adds cylinder, eliminated the existing problem of crossing the location and needing to apply repeatedly of existing method of testing (seeing documents 1,2 for details), and can eliminate because of cooperating the phenomenon of the end face injustice that need produce by the machining process of routine, this is never to disclose in the prior art, it has fundamentally solved the sealing problem of mating surface, thereby makes sample more approach whole sample.
Description of drawings
Fig. 1 is one of existing sample structure synoptic diagram.
Fig. 2 is two of an existing sample structure synoptic diagram.
Fig. 3 is one of structural representation of sample of the present invention.
Fig. 4 be sample of the present invention structural representation two.
Fig. 5 is sample angle of friction test philosophy figure of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in Figure 3.
A kind of method for testing high-combination performance coating strength based on pressure experimental device, it mainly is made up of following steps:
At first get the sample identical with matrix material and be processed into a sample blank of being made up of cone and right cylinder, wherein right cylinder links to each other with the small end of cone is whole, and the cone angle of cone is between 2 times matrix material angle of friction and 120 is spent;
Secondly, the said sample blank is placed a step bracing ring that has identical cone angle taper hole, the conical section of sample blank is matched with this taper hole, the big stepped diameters of this step bracing ring is 2～4 times of taper hole end diameter wherein, the difference of small stair diameter and taper hole outside diameter is 3～8mm, and the height of small stair is 1～8mm;
The 3rd, above-mentioned sample blank of working good and bracing ring placed carry out machining on lathe or the grinding machine, the part that excision sample blank stretches out the small stair end face flushes the surface of sample blank and small stair end face, obtains the sample semi-manufacture;
The 4th, on the surface of the processed mistake of said sample semi-manufacture, prepare coating, make coating cover bracing ring small stair end face and the big end end face of sample blank cone all, simultaneously, obtain sample;
The 5th, when the thickness value up to specification of coating, said sample directly placed and push test on the pressure experimental device, peel off with big end of sample blank cone and bracing ring small stair end face up to coating, can record matrix and coating's adhesion; When the thickness of coating is lower than setting, at first on the surface of coating, be coated with upper glue layer, and then stickup one thickness is the reinforcement metal plate of 1～3mm on glue-line, treat again it directly to be placed after its bonding firmly and push test on the pressure experimental device, peel off with big end of sample blank cone and bracing ring small stair end face up to coating, can record matrix and coating's adhesion.
A kind of high-combination performance coating strength test sample based on pressure experimental device, be that it is mainly by step-like bracing ring 1, awl-post combination 2 and coating 3 are formed, be provided with a taper hole in the described step-like bracing ring 1, the big end of taper hole is positioned on the small stair body, the difference of the diameter of small stair body 101 and taper hole outside diameter is 3～8mm, the height of small stair body 101 is 1～8mm, the diameter of big step body 102 is 2～4 times of taper hole end diameter, the cone angle of the cone 201 of awl-post combination 2 is identical with the cone angle of taper hole in the bracing ring 1, its cone 201 is arranged in step-like bracing ring 1, its cylinder part 202 links to each other with the small end of cone 201 and is positioned at outside the step-like bracing ring 1, the big end end face of the cone 201 of awl-post combination 2 and the end face of small stair body 101 are in the same plane, preparation has coating 3 on this plane, as shown in Figure 3.When coating is thin, also can on coating 3, be coated with upper glue layer 4, the metal reinforcing plates 5 that on glue-line 4, bonds again, as shown in Figure 4.
It below is the oxygen acetylene flame jet soldering Bond Strength of Coating test case that is carried out according to method of the present invention and sample, but be not limited only to this example, can select according to actual conditions for aforesaid correlation parameter, as long as satisfy the aforementioned parameter area that indicates of the present invention, all can reach purpose of the present invention, finish test job accurately.
Example: the small stair body diameter of bracing ring is Φ 18mm, and big step body diameter is Φ 30mm, and the outside diameter of taper hole wherein is Φ 15mm, and cone angle is 20 °, and the end diameter of taper hole is Φ 11.47～11.52mm (measured value), the height 3mm of small stair body; The length overall of awl-post combination is 16mm, and wherein conical surface length is 11mm; The cooperation conical surface length of bracing ring and awl-post combination is 10mm; Matrix material is 45 steel, and coating material is Ni60, and coating thickness is 1mm.Prepare 6 samples under the same conditions based on above-mentioned parameter, on multi-functional Experiments of Machanics device, test, coating is all peeled off with big end of sample blank cone and bracing ring small stair end face, record Bond Strength of Coating and be respectively 151.2MPa, 160.5MPa, 148.6MPa, 155.4MPa, 158.3MPa, 152.5MPa, the data dispersion degree only is 7.7%, gluing and drawing process far below the pertinent literature report, the mean value 154.4MPa that gets 6 samples is as the bond strength index, and it is far above the tensile strength of widely used E-7 glue in gluing and drawing process at present.
Claims (3)
1, a kind of method for testing high-combination performance coating strength based on pressure experimental device is characterized in that:
At first get the sample identical with matrix material and be processed into a sample blank of being made up of cone and right cylinder, wherein right cylinder links to each other with the small end of cone is whole, and the cone angle of cone is between 2 times matrix material angle of friction and 120 is spent;
Secondly, the said sample blank is placed a step bracing ring that has identical cone angle taper hole, the conical section of sample blank is matched with this taper hole, the big stepped diameters of this step bracing ring is 2～4 times of taper hole end diameter wherein, the difference of small stair diameter and taper hole outside diameter is 3～8mm, and the height of small stair is 1～8mm;
The 3rd, above-mentioned sample blank of working good and bracing ring placed carry out machining on lathe or the grinding machine, the part that excision sample blank stretches out the small stair end face flushes the surface of sample blank and small stair end face, obtains the sample semi-manufacture;
The 4th, on the surface of the processed mistake of said sample semi-manufacture, prepare coating, make coating cover bracing ring small stair end face and the big end end face of sample blank cone all, simultaneously, obtain sample;
The 5th, when the thickness value up to specification of coating, said sample directly placed and push test on the pressure experimental device, peel off with big end of sample blank cone and bracing ring small stair end face up to coating, can record matrix and coating's adhesion; When the thickness of coating is lower than setting, at first on the surface of coating, be coated with upper glue layer, and then stickup one thickness is the reinforcement metal plate of 1～3mm on glue-line, treat again it directly to be placed after its bonding firmly and push test on the pressure experimental device, peel off with big end of sample blank cone and bracing ring small stair end face up to coating, can record matrix and coating's adhesion.
2, a kind of high-combination performance coating strength test sample based on pressure experimental device, it is characterized in that it is mainly by step-like bracing ring, awl-post combination and coating are formed, be provided with a taper hole in the described bracing ring, the big end of taper hole is positioned on the small stair body, the difference of the diameter of small stair body and taper hole outside diameter is 3～8mm, the height of small stair body is 1～8mm, the diameter of big step body is 2～4 times of taper hole end diameter, the cone angle of the conical section of awl-post combination is identical with the cone angle of taper hole in the bracing ring, its conical section is arranged in step-like bracing ring, its cylinder part links to each other with the small end of cone and is positioned at outside the step-like bracing ring, the end face of big end end face of the cone of awl-post combination and small stair body is in the same plane, and preparation has coating on this plane.
3, sample according to claim 2 is characterized in that being provided with glue-line on described coating, is bonded with metal reinforcing plates on the glue-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100246105A CN100538324C (en) | 2007-06-25 | 2007-06-25 | Method for testing high-combination performance coating strength and sample based on pressure experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100246105A CN100538324C (en) | 2007-06-25 | 2007-06-25 | Method for testing high-combination performance coating strength and sample based on pressure experimental device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101074918A true CN101074918A (en) | 2007-11-21 |
| CN100538324C CN100538324C (en) | 2009-09-09 |
Family
ID=38976096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100246105A Expired - Fee Related CN100538324C (en) | 2007-06-25 | 2007-06-25 | Method for testing high-combination performance coating strength and sample based on pressure experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100538324C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881721A (en) * | 2010-06-22 | 2010-11-10 | 湖北省水利水电勘测设计院 | Device for measuring peel resistance strength of composite lining material |
| CN103048196A (en) * | 2012-12-20 | 2013-04-17 | 天津工程机械研究院 | Compressive strength test method for surface strengthening layer and substrate of axial part |
| CN103091247A (en) * | 2013-01-15 | 2013-05-08 | 广东生益科技股份有限公司 | Method and equipment for testing binding force of pad and base material |
| CN105445104A (en) * | 2015-12-17 | 2016-03-30 | 郑州磨料磨具磨削研究所有限公司 | Plating layer strength detection specimen and preparation method thereof |
| CN105651615A (en) * | 2015-12-24 | 2016-06-08 | 吉林大学 | Pushing-off test method for testing bonding strength between surfacing layers and between surfacing layers and base metal as well as test pieces |
| CN106990043A (en) * | 2017-06-12 | 2017-07-28 | 中国矿业大学 | A kind of metal coating interface bond strength measurement apparatus and method |
| CN107748104A (en) * | 2017-09-05 | 2018-03-02 | 中建商品混凝土有限公司 | The method of testing of 3D printing building structure bond strength between layers |
| CN112630137A (en) * | 2020-12-15 | 2021-04-09 | 中国石油天然气集团有限公司 | Coating adhesion testing method |
-
2007
- 2007-06-25 CN CNB2007100246105A patent/CN100538324C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881721A (en) * | 2010-06-22 | 2010-11-10 | 湖北省水利水电勘测设计院 | Device for measuring peel resistance strength of composite lining material |
| CN103048196A (en) * | 2012-12-20 | 2013-04-17 | 天津工程机械研究院 | Compressive strength test method for surface strengthening layer and substrate of axial part |
| CN103048196B (en) * | 2012-12-20 | 2015-01-14 | 天津工程机械研究院 | Compressive strength test method for surface strengthening layer and substrate of axial part |
| CN103091247A (en) * | 2013-01-15 | 2013-05-08 | 广东生益科技股份有限公司 | Method and equipment for testing binding force of pad and base material |
| CN103091247B (en) * | 2013-01-15 | 2015-09-16 | 广东生益科技股份有限公司 | The method of testing of a kind of pad and base material adhesion and equipment |
| CN105445104B (en) * | 2015-12-17 | 2019-03-01 | 郑州磨料磨具磨削研究所有限公司 | Coating strength detects test specimen and preparation method thereof |
| CN105445104A (en) * | 2015-12-17 | 2016-03-30 | 郑州磨料磨具磨削研究所有限公司 | Plating layer strength detection specimen and preparation method thereof |
| CN105651615A (en) * | 2015-12-24 | 2016-06-08 | 吉林大学 | Pushing-off test method for testing bonding strength between surfacing layers and between surfacing layers and base metal as well as test pieces |
| CN106990043A (en) * | 2017-06-12 | 2017-07-28 | 中国矿业大学 | A kind of metal coating interface bond strength measurement apparatus and method |
| CN106990043B (en) * | 2017-06-12 | 2019-11-12 | 中国矿业大学 | A kind of metal coating interface bond strength measuring device and method |
| CN107748104A (en) * | 2017-09-05 | 2018-03-02 | 中建商品混凝土有限公司 | The method of testing of 3D printing building structure bond strength between layers |
| CN107748104B (en) * | 2017-09-05 | 2020-12-08 | 中建商品混凝土有限公司 | Method for testing interlayer bonding strength of 3D printing building structure |
| CN112630137A (en) * | 2020-12-15 | 2021-04-09 | 中国石油天然气集团有限公司 | Coating adhesion testing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100538324C (en) | 2009-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100538324C (en) | Method for testing high-combination performance coating strength and sample based on pressure experimental device | |
| Alfano et al. | Mode I fracture of adhesive joints using tailored cohesive zone models | |
| Zhu et al. | Direct extraction of rate-dependent traction–separation laws for polyurea/steel interfaces | |
| Ferraris et al. | Comparison of shear strength tests on AV119 epoxy-joined carbon/carbon composites | |
| CN204556480U (en) | A kind of test unit of testing coating test specimen bond strength | |
| CN106644727B (en) | Device and method for testing rebound modulus of asphalt layer of rigid-flexible composite test piece | |
| CN105675419B (en) | Biconial press-in prediction material single shaft constitutive relation assay method | |
| CN104764692A (en) | Testing device for testing bonding strength of coating specimen | |
| CN203365241U (en) | Testing device for interface tensile bonding strength of laminated metal composite | |
| CN101038247A (en) | Method for measuring material mechanical performance with double-cone pressure head | |
| Rietz et al. | Centrifugal adhesion testing technology (catt)-a valuable tool for strength determination | |
| CN111551488A (en) | Method for testing interlayer adhesion and method for preparing test sample | |
| CN108760437B (en) | Sample preparation method for tensile shear strength of structural adhesive steel to steel | |
| CN110132842A (en) | A kind of detection method of lithium ion battery coated separator adhesion strength | |
| CN108693037A (en) | Using draw ratio 1:The compression strength of 1 cylinder of concrete and elasticity modulus Combined Trials method | |
| CN210090213U (en) | Improved dynamic shear rheometer parallel plate | |
| CN114371126A (en) | Asphalt and aggregate interface adhesion damage and cohesiveness testing device and method | |
| CN112461150B (en) | Device and method for measuring strain of guide pipe for well drilling | |
| CN115078086A (en) | Method for measuring bonding force between metal matrix and oxide film by using SEM (scanning electron microscope) in-situ tensile instrument | |
| CN108593433A (en) | A kind of test device and its test method of the rocks in direct tension under water environment | |
| CN111678781A (en) | Single-side matrix test piece anti-pulling testing device and method with microfibers embedded in cement matrix | |
| Tannant et al. | Evaluation of test methods for measuring adhesion between a liner and rock | |
| RU179920U1 (en) | Device for determining the adhesion of coatings to the substrate | |
| CN220872220U (en) | Clamp for tensile shear test | |
| CN117012309A (en) | Damage initial characterization method for coupling failure behavior of heterogeneous cementing joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HAIAN CHANGGONG TECHNOLOGY TRANSFER CENTER CO., LT Free format text: FORMER OWNER: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS Effective date: 20140527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210016 NANJING, JIANGSU PROVINCE TO: 226600 NANTONG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140527 Address after: 226600 No. 8 Yingbin Road, Haian County, Nantong, Jiangsu Patentee after: Haian Chang Chang Technology Transfer Center Co., Ltd. Address before: Yudaojie Nanjing 210016 Jiangsu province No. 29 Patentee before: Nanjing University of Aeronautics and Astronautics |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20160625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |