CN201355343Y - Tensile specimen for testing bonding strength of coating - Google Patents
Tensile specimen for testing bonding strength of coating Download PDFInfo
- Publication number
- CN201355343Y CN201355343Y CN 200820183268 CN200820183268U CN201355343Y CN 201355343 Y CN201355343 Y CN 201355343Y CN 200820183268 CN200820183268 CN 200820183268 CN 200820183268 U CN200820183268 U CN 200820183268U CN 201355343 Y CN201355343 Y CN 201355343Y
- Authority
- CN
- China
- Prior art keywords
- loading blocks
- matrix
- ring flange
- face
- orifice plate
- 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.)
- Expired - Fee Related
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 55
- 238000000576 coating method Methods 0.000 title claims abstract description 55
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 46
- 238000004873 anchoring Methods 0.000 claims description 17
- 238000009864 tensile test Methods 0.000 claims description 16
- 238000007751 thermal spraying Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 14
- 238000005259 measurement Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000005507 spraying Methods 0.000 description 9
- 238000010998 test method Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a tensile specimen for testing bonding strength of coating, which belongs to the technical field of thermal spraying, and relates to an improved tensile specimen for coating bonding strength testing. The improved tensile specimen for coating bonding strength testing comprises a first load block [1], a second load block [2] and a matrix [3] which is arranged between the first load block [1] and the second load block [2]; the tensile specimen for coating bonding strength testing is characterized in that the center of the right end surface of the matrix [3] is provided with a pin shaft [7] which is vertical to the end surface; an orifice [4] is arranged; the center of the right end surface of the orifice [4] is provided with a cylindrical boss [8] which is vertical to the end surface; the pin shaft [7] is inserted into a pin shaft hole of the orifice [4]; the end surface of the pin shaft [7] is coplanar with the end surface of the cylindrical boss [8]; and the cylindrical boss [8] is inserted into a center blind hole of a flange of the second load block [2]. The tensile specimen for coating bonding strength testing can accurately measure the high bonding strength of the coating, and overcomes the limitation that the maximum tested bonding strength in the traditional testing method can be only below 100Mpa.
Description
Technical field
The utility model belongs to technical field of hot, relates to the improvement to the tensile test specimen that is used for the anchoring strength of coating test.
Background technology
The hot spray coating technology is one of important means that improves the material surface performance, and it can possess wear-resisting, corrosion resistant, heat-resisting, heat insulation, anti-oxidant, sealing, conduction, insulation or other is specifically functional.Be widely used in fields such as Aero-Space, mechanical engineering, infotech, microelectric technique, optical information science and computer science, and to make coating can play favorable protection and invigoration effect, the most important condition is exactly that requirement is sprayed on coating on the matrix and stronger adhesive capacity should be arranged and does not peel off, promptly, between coating and matrix sufficiently high bond strength must be arranged bearing under the conditions such as alternating thermal stress, shock load, flexural deformation, vibration or strong pressure friction.
Anchoring strength of coating is the important technology index of coating, and it has reflected the bond strength between coating self or coating and the matrix material.The method of existing mensuration hot spray coating resisting binding strength is the antithesis pulling method, sees GB/T8642-2002.This standard code two kinds of method of testings of A, B.The A method of testing needs to process special-purpose matrix block before each test, operation is many, efficient is low, cost is high.B method of testing such as Fig. 1, tensile test specimen is made up of first loading blocks 1, second loading blocks 2 and the matrix 3 between first loading blocks 1 and second loading blocks 2, and matrix 3 is a disk, and first loading blocks 1 is the identical step axle of profile with second loading blocks 2.During test, at a spray-on coating of matrix 3 disks, the end face of disk and two loading blocks bonding, used cementing agent is an epoxide-resin glue.Use omnipotent hydraulic pressure mechanical property tester to carry out the measurement of anchoring strength of coating, suffered value of thrust F when this instrument will write down coating automatically and pull.If the area of sample spraying end face is A, anchoring strength of coating is P, then P=F/A.The tensile test specimen of B method of testing can repeatedly use, the efficient height, and cost is low.But the measurement upper limit of B method of testing is subjected to the restriction of the epoxide-resin glue that uses, not the coating of energy measurement high bond strength.Its reason is as follows:
When using omnipotent hydraulic pressure mechanical property tester to carry out the measurement of anchoring strength of coating, have following three kinds and break situation: (1) is when breaking section and occur between coating and matrix, gained bond strength P is anchoring strength of coating, according to formula P=F/A, this moment, F was big more, and then anchoring strength of coating P is big more; (2) both occurred in when also occurring between cementing agent and the loading blocks between coating and matrix when breaking section, and illustrated that this moment anchoring strength of coating was suitable with cementing agent tensile strength, measured P value still can be used as the anchoring strength of coating value; (3) when breaking section and occur between cementing agent and the loading blocks, measured intensity is the intensity of cementing agent, and the actual bond strength value of this explanation coating is greater than adhesive strength P, and classic method can't have been measured coating bond strength numerical value accurately at this moment.The coating maximum combined intensity that is to say traditional antithesis pulling method institute energy measurement depends on the pulling strengrth of cementing agent, and the most extensive, the top-quality epoxide-resin glue of present domestic employing is an E-7 glue, and its pulling strengrth is below the 100MPa.This has limited present Bond Strength of Coating full test value can only be below 100MPa.
Summary of the invention
The purpose of this utility model is: propose a kind of tensile test specimen that can test bond strength greater than the anchoring strength of coating test of 100MPa coating, to satisfy the testing requirement of high bond strength coating.
The technical solution of the utility model is: the tensile test specimen that is used for the anchoring strength of coating test; Comprise the first loading blocks 1, the second loading blocks 2 and the matrix 3 between the first loading blocks 1 and the second loading blocks 2; The first loading blocks 1 is the identical Step Shaft of profile with the second loading blocks 2; The left end of the first loading blocks 1 be connected the right-hand member of loading blocks 2 radial direction through hole that is connected with the Universal hydraulic mechanical property tester respectively arranged; Matrix 3 comprises a plectane; The equal diameters of the diameter of this plectane and the first loading blocks 1 and the second loading blocks 2 enlarged diameter sections; It is characterized in that
The right section enlarged diameter section of (1) first loading blocks 1 is a ring flange, and the end face of first loading blocks, 1 ring flange is the plane, and 2～4 screw holes that are uniformly distributed along the circumference are arranged on first loading blocks, 1 ring flange; The left side section enlarged diameter section of second loading blocks 2 is a ring flange, there is a blind hole at the end face center of second loading blocks, 2 ring flanges, the bottom surface of this blind hole is the plane that is parallel to second loading blocks, 2 ring flange end faces, and 2～4 screw holes that are uniformly distributed along the circumference are arranged on second loading blocks, 2 ring flanges;
(2) at the center of the right side of matrix 3 bearing pin 7 perpendicular to this end face is arranged, bearing pin 7 is coaxial with matrix 3; The threaded hole that is uniformly distributed along the circumference is arranged on matrix 3, and the quantity of these threaded holes is identical with screw hole on first loading blocks, 1 ring flange and the position is corresponding, matrix 3 is fixed on the ring flange of first loading blocks 1 by matrix trip bolt 6;
(3) orifice plate 4 is arranged, its plectane identical that be diameter with matrix 3, there is a cylindrical boss 8 perpendicular to this end face at center in the right side of orifice plate 4, the end face of this cylindrical boss 8 is parallel to the right side of orifice plate 4, a pin shaft hole that axially connects is arranged at the center of orifice plate 4, the bearing pin 7 of matrix 3 is inserted in the above-mentioned pin shaft hole and keeps clearance fit, when the applying of the left side of the right side of matrix 3 and orifice plate 4, and the end face coplane of the end face of bearing pin 7 and cylindrical boss 8; The diameter of cylindrical boss 8 is less than the internal diameter of second loading blocks, 2 ring flange central blind holes, when the end face of the right side of orifice plate 4 and second loading blocks, 2 ring flanges is fitted, cylindrical boss 8 inserts in the central blind hole of second loading blocks, 2 ring flanges, the clearance t=0～0.15mm between the end face of cylindrical boss 8 and the above-mentioned central blind hole bottom surface; The threaded hole that is uniformly distributed along the circumference is arranged on orifice plate 4, the quantity of these threaded holes is identical with screw hole on second loading blocks, 2 ring flanges and the position is corresponding, orifice plate 4 is fixed on the ring flange of second loading blocks 2 by orifice plate trip bolt 5, the end face of the right side of orifice plate 4 and second loading blocks, 2 ring flanges is involutory.
The utility model has the advantages that: can realize accurate measurement, overcome the limitation that conventional test methodologies bond strength full test value can only be below 100MPa the coating high bond strength.In the utility model, the face area of bearing pin 7 is for pulling area, the face area of cylindrical boss 8 is the coating area, owing to pull area much smaller than the coating area, so that the adhesion between cementing agent and the loading blocks much larger than the adhesion between coating and the matrix, thereby pulled between cementing agent and the loading blocks when having avoided test.When pulling area and coating area ratio when being 1: 60, the maximum in theory maximum combined intensity that can measure 60 times of cementing agents with regard to E-7 glue, equals to measure the bond strength up to about 6000MPa.Therefore the utility model has improved the measurement range of anchoring strength of coating greatly, has satisfied new high-performance coating preparation technology's demand.
Description of drawings
Fig. 1 is the structural representation of tensile test specimen in the B kind method of testing of GB regulation.Coating 9 among the figure and cementing agent 10 are the preceding in-situ sprayings of test, are not the structure of tensile test specimen itself.The state of representing tensile test specimens after the spray-on coating 9 and cementing agent 10 among the figure.
Fig. 2 is a structural representation of the present utility model.Coating 9 among the figure and cementing agent 10 are the preceding in-situ sprayings of test, are not the structure of tensile test specimen itself.The state of representing tensile test specimens after the spray-on coating 9 and cementing agent 10 among the figure.
Embodiment
Below the utility model is described in further details. is referring to Fig. 2; The tensile test specimen that is used for the anchoring strength of coating test; Comprise the first loading blocks 1, the second loading blocks 2 and the matrix 3 between the first loading blocks 1 and the second loading blocks 2; The first loading blocks 1 is the identical Step Shaft of profile with the second loading blocks 2; The left end of the first loading blocks 1 be connected the right-hand member of loading blocks 2 radial direction through hole that is connected with the Universal hydraulic mechanical property tester respectively arranged; Matrix 3 comprises a plectane; The equal diameters of the diameter of this plectane and the first loading blocks 1 and the second loading blocks 2 enlarged diameter sections; It is characterized in that
The right section enlarged diameter section of (1) first loading blocks 1 is a ring flange, and the end face of first loading blocks, 1 ring flange is the plane, and 2～4 screw holes that are uniformly distributed along the circumference are arranged on first loading blocks, 1 ring flange; The left side section enlarged diameter section of second loading blocks 2 is a ring flange, there is a blind hole at the end face center of second loading blocks, 2 ring flanges, the bottom surface of this blind hole is the plane that is parallel to second loading blocks, 2 ring flange end faces, and 2～4 screw holes that are uniformly distributed along the circumference are arranged on second loading blocks, 2 ring flanges;
(2) at the center of the right side of matrix 3 bearing pin 7 perpendicular to this end face is arranged, bearing pin 7 is coaxial with matrix 3; The threaded hole that is uniformly distributed along the circumference is arranged on matrix 3, and the quantity of these threaded holes is identical with screw hole on first loading blocks, 1 ring flange and the position is corresponding, matrix 3 is fixed on the ring flange of first loading blocks 1 by matrix trip bolt 6;
(3) orifice plate 4 is arranged, its plectane identical that be diameter with matrix 3, there is a cylindrical boss 8 perpendicular to this end face at center in the right side of orifice plate 4, the end face of this cylindrical boss 8 is parallel to the right side of orifice plate 4, a pin shaft hole that axially connects is arranged at the center of orifice plate 4, the bearing pin 7 of matrix 3 is inserted in the above-mentioned pin shaft hole and keeps clearance fit, when the applying of the left side of the right side of matrix 3 and orifice plate 4, and the end face coplane of the end face of bearing pin 7 and cylindrical boss 8; The diameter of cylindrical boss 8 is less than the internal diameter of second loading blocks, 2 ring flange central blind holes, when the end face of the right side of orifice plate 4 and second loading blocks, 2 ring flanges is fitted, cylindrical boss 8 inserts in the central blind hole of second loading blocks, 2 ring flanges, the clearance t=0～0.15mm between the end face of cylindrical boss 8 and the above-mentioned central blind hole bottom surface; The threaded hole that is uniformly distributed along the circumference is arranged on orifice plate 4, the quantity of these threaded holes is identical with screw hole on second loading blocks, 2 ring flanges and the position is corresponding, orifice plate 4 is fixed on the ring flange of second loading blocks 2 by orifice plate trip bolt 5, the end face of the right side of orifice plate 4 and second loading blocks, 2 ring flanges is involutory.
In order to guarantee the adhesion of cementing agent and loading blocks, the ratio η of the face area of the face area of matrix 3 bearing pins 7 and orifice plate 4 cylindrical bosses 8=1: 1.1～1: 180.In order to improve the precision of measurement, the diameter d of bearing pin 7 is more than or equal to 3mm.
Using method of the present utility model is:
(1) at first the bearing pin on the matrix 37 and the pin shaft hole clearance fit of orifice plate 4 are got up, as shown in Figure 3, the end face of bearing pin 7 and cylindrical boss 8 is spraying face.According to the GB regulated procedure to above-mentioned spraying face spray-on coating, coating thickness h=0.15mm～0.35mm.
(2) after spraying finishes, matrix 3 is assembled on first loading blocks, 1 ring flange, the coating surface gluing that is spraying afterwards, then orifice plate 4 is assembled on second loading blocks, 2 ring flanges, the blind hole bottom surface and the above-mentioned gluing coating surface that guarantee second loading blocks 2 are involutory, form complete tensile test specimen.Afterwards, tensile test specimen is put into insulation can and make adhesive cures.
(3) take out the test specimen that is cured, use omnipotent hydraulic pressure mechanical property tester to carry out the measurement of anchoring strength of coating.
Embodiment:
When the end face diameter of boss 8 is the end face diameter of 40mm. bearing pin 7 when being d,
Following table provides the major parameter of 7 embodiment of the present utility model.The mm of unit.
| d | η | t | h | Measure the upper limit | |
| Example 1 | 3 | 178 | 0 | 0.15 | 17800MPa |
| Example 2 | 6 | 44 | 0.10 | 0.20 | 4400MPa |
| Example 3 | 10 | 16 | 0.15 | 0.15 | 1600MPa |
| Example 4 | 18 | 5 | 0.15 | 0.20 | 500MPa |
| Example 5 | 25 | 2.5 | 0.10 | 0.30 | 250MPa |
| Example 6 | 35 | 1.3 | 0 | 0.35 | 130MPa |
| Example 7 | 38 | 1.1 | 0.15 | 0.35 | 110MPa |
Claims (2)
1, the tensile test specimen that is used for the anchoring strength of coating test, comprise first loading blocks [1], second loading blocks [2] and be positioned at first loading blocks [1] and second loading blocks [2] between matrix [3], first loading blocks [1] is the identical step axle of profile with second loading blocks [2], at the left end of first loading blocks [1] and the right-hand member of second loading blocks [2] radial direction through hole that is connected with omnipotent hydraulic pressure mechanical property tester is arranged respectively, matrix [3] comprises a plectane, the equal diameters of the diameter of this plectane and first loading blocks [1] and second loading blocks [2] enlarged diameter section, it is characterized in that
The right section enlarged diameter section of (1) first loading blocks [1] is a ring flange, and the end face of first loading blocks [1] ring flange is the plane, and 2～4 screw holes that are uniformly distributed along the circumference are arranged on first loading blocks [1] ring flange; The left side section enlarged diameter section of second loading blocks [2] is a ring flange, there is a blind hole at the end face center of second loading blocks [2] ring flange, there are 2～4 screw holes that are uniformly distributed along the circumference the bottom surface of this blind hole for being parallel to the plane of second loading blocks [2] ring flange end face on second loading blocks [2] ring flange;
(2) at the center of the right side of matrix [3] bearing pin perpendicular to this end face [7] is arranged, bearing pin [7] is coaxial with matrix [3]; On matrix [3] threaded hole that is uniformly distributed along the circumference is arranged, the quantity of these threaded holes is identical with screw hole on first loading blocks [1] ring flange and the position is corresponding, by matrix trip bolt [6] matrix [3] is fixed on the ring flange of first loading blocks [1];
(3) orifice plate [4] is arranged, it is diameter and the identical plectane of matrix [3], there is a cylindrical boss perpendicular to this end face [8] at center in the right side of orifice plate [4], the end face of this cylindrical boss [8] is parallel to the right side of orifice plate [4], a pin shaft hole that axially connects is arranged at the center of orifice plate [4], the bearing pin [7] of matrix [3] is inserted in the above-mentioned pin shaft hole and keeps clearance fit, when fit in the left side of the right side of matrix [3] and orifice plate [4], the end face coplane of the end face of bearing pin [7] and cylindrical boss [8]; The diameter of cylindrical boss [8] is less than the internal diameter of second loading blocks [2] ring flange central blind hole, when the end face of the right side of orifice plate [4] and second loading blocks [2] ring flange is fitted, cylindrical boss [8] inserts in the central blind hole of second loading blocks [2] ring flange, the clearance t=0～0.15mm between the end face of cylindrical boss [8] and the above-mentioned central blind hole bottom surface; On orifice plate [4], the threaded hole that is uniformly distributed along the circumference is arranged, the quantity of these threaded holes is identical with screw hole on second loading blocks [2] ring flange and the position is corresponding, by orifice plate trip bolt [5] orifice plate [4] is fixed on the ring flange of second loading blocks [2], the end face of the right side of orifice plate [4] and second loading blocks [2] ring flange is involutory.
2, the tensile test specimen that is used for the anchoring strength of coating test according to claim 1, it is characterized in that, the ratio η of the face area of the face area of matrix [3] bearing pin [7] and orifice plate [4] cylindrical boss [8]=1: 1.1～1: 180, the diameter d of bearing pin [7] is more than or equal to 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820183268 CN201355343Y (en) | 2008-12-24 | 2008-12-24 | Tensile specimen for testing bonding strength of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820183268 CN201355343Y (en) | 2008-12-24 | 2008-12-24 | Tensile specimen for testing bonding strength of coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201355343Y true CN201355343Y (en) | 2009-12-02 |
Family
ID=41411685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820183268 Expired - Fee Related CN201355343Y (en) | 2008-12-24 | 2008-12-24 | Tensile specimen for testing bonding strength of coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201355343Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900651A (en) * | 2010-07-06 | 2010-12-01 | 奇瑞汽车股份有限公司 | Method for measuring forward tensile strength of welding spots and fixtures |
| RU2456577C1 (en) * | 2010-12-29 | 2012-07-20 | Государственное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет" (СГТУ) | Device for determining adhesive and cohesive strength of gas thermal coatings on samples |
| CN103744308A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Intelligent household simulation device control system |
| CN104614313A (en) * | 2015-01-20 | 2015-05-13 | 上海海隆石油化工研究所 | Tensile tester connector used for drawing attachment force testing |
| CN105690299A (en) * | 2016-04-08 | 2016-06-22 | 航天精工股份有限公司 | Vapor deposition thin coating layer curing tool |
| CN107560906A (en) * | 2017-08-25 | 2018-01-09 | 北京星航机电装备有限公司 | A kind of tensile strength test specimens centralizer |
| CN108548719A (en) * | 2018-03-07 | 2018-09-18 | 北京航空航天大学 | A kind of composite material interlayer normal strength test method |
| CN110100168A (en) * | 2016-12-21 | 2019-08-06 | 罗伯特·博世有限公司 | Method for detecting the adhesion characteristics of hard layer |
| CN110231221A (en) * | 2019-05-17 | 2019-09-13 | 昆明理工大学 | A kind of test method of hot-spraying coating mechanical property |
-
2008
- 2008-12-24 CN CN 200820183268 patent/CN201355343Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900651A (en) * | 2010-07-06 | 2010-12-01 | 奇瑞汽车股份有限公司 | Method for measuring forward tensile strength of welding spots and fixtures |
| CN101900651B (en) * | 2010-07-06 | 2012-10-03 | 奇瑞汽车股份有限公司 | Method for measuring forward tensile strength of welding spots and fixtures |
| RU2456577C1 (en) * | 2010-12-29 | 2012-07-20 | Государственное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет" (СГТУ) | Device for determining adhesive and cohesive strength of gas thermal coatings on samples |
| CN103744308A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Intelligent household simulation device control system |
| CN104614313A (en) * | 2015-01-20 | 2015-05-13 | 上海海隆石油化工研究所 | Tensile tester connector used for drawing attachment force testing |
| CN105690299B (en) * | 2016-04-08 | 2017-08-25 | 航天精工股份有限公司 | One kind vapour deposition shallow layer solidification frock |
| CN105690299A (en) * | 2016-04-08 | 2016-06-22 | 航天精工股份有限公司 | Vapor deposition thin coating layer curing tool |
| CN110100168A (en) * | 2016-12-21 | 2019-08-06 | 罗伯特·博世有限公司 | Method for detecting the adhesion characteristics of hard layer |
| CN110100168B (en) * | 2016-12-21 | 2022-03-01 | 罗伯特·博世有限公司 | Method for detecting adhesion properties of a hard layer |
| CN107560906A (en) * | 2017-08-25 | 2018-01-09 | 北京星航机电装备有限公司 | A kind of tensile strength test specimens centralizer |
| CN107560906B (en) * | 2017-08-25 | 2019-12-24 | 北京星航机电装备有限公司 | Tensile strength test sample centering device |
| CN108548719A (en) * | 2018-03-07 | 2018-09-18 | 北京航空航天大学 | A kind of composite material interlayer normal strength test method |
| CN108548719B (en) * | 2018-03-07 | 2021-03-30 | 北京航空航天大学 | Method for testing interlayer normal strength of composite material |
| CN110231221A (en) * | 2019-05-17 | 2019-09-13 | 昆明理工大学 | A kind of test method of hot-spraying coating mechanical property |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201355343Y (en) | Tensile specimen for testing bonding strength of coating | |
| Zhai et al. | An experimental study on the effect of bolt-hole clearance and bolt torque on single-lap, countersunk composite joints | |
| Qin et al. | Fastener effects on mechanical behaviors of double-lap composite joints | |
| Jones et al. | Composite repairs to cracks in thick metallic components | |
| US11486805B2 (en) | Impact test fixture capable of applying preload on composite laminate | |
| Andrew et al. | The role of adhesively bonded super hybrid external patches on the impact and post-impact response of repaired glass/epoxy composite laminates | |
| Campilho | Repair of composite and wood structures | |
| Lee | Torque transmission capability of composite–metal interference fit joints | |
| CN202710399U (en) | Composite-material laminate bolt connection extruding strength single-lap joint test fixture | |
| Yang et al. | Effects of freeze-thaw cycles on physical and mechanical properties of glulam exposed to outdoor environment | |
| CN205003068U (en) | A binder adhesion properties testing arrangement for slice substrate | |
| CN102539317A (en) | Bonding strength testing device | |
| CN106323767A (en) | Testing device for shearing resistance of bolt | |
| CN103454153A (en) | Test piece for determining I type fracture energy of compound propellant/coating layer bonding interface | |
| WO2016061477A1 (en) | Coating bond test method and method of making a specimen for testing bond strength of a coating | |
| Liu et al. | Stress around the hole of single lapped and single bolted joint plates with fitting clearance | |
| CN215727601U (en) | Standard forging die installation auxiliary device for coating adhesion detection | |
| Falconieri et al. | The effect of titanium insert repairs on the static strength of CFRP coupons and joints | |
| Seike et al. | Bearing damage evolution of a pinned joint in CFRP laminates under repeated tensile loading | |
| CN209513430U (en) | A kind of III type interlaminar delamination failure test part of composite material laminated board | |
| Seneviratne et al. | Durability and residual strength of adhesively-bonded composite joints: The case of F/A-18 A–D wing root stepped-lap joint | |
| CN103954505B (en) | Composite layer plate thickness direction nonlinear constitutive relation method of testing | |
| Hurme et al. | Fatigue of bonded steel interfaces under cyclic shear loading and static normal stress | |
| CN106018098A (en) | Method for recognizing dynamic tensile property of rubber concrete cylindrical specimen | |
| CN104568744A (en) | Fiber adhesive property testing device suitable for common tension tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20171224 |