CN110926964A - Method for testing shearing force of DG-3S epoxy resin adhesive layer - Google Patents
Method for testing shearing force of DG-3S epoxy resin adhesive layer Download PDFInfo
- Publication number
- CN110926964A CN110926964A CN201911063637.4A CN201911063637A CN110926964A CN 110926964 A CN110926964 A CN 110926964A CN 201911063637 A CN201911063637 A CN 201911063637A CN 110926964 A CN110926964 A CN 110926964A
- Authority
- CN
- China
- Prior art keywords
- eyepiece
- laser
- lens barrel
- epoxy resin
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 23
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 23
- 238000010008 shearing Methods 0.000 title claims abstract description 18
- 239000012790 adhesive layer Substances 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 238000009864 tensile test Methods 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 239000003292 glue Substances 0.000 abstract description 13
- 239000010410 layer Substances 0.000 abstract description 9
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000001066 destructive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a method for testing the shearing force of a DG-3S epoxy resin adhesive layer, which mainly solves the problem that the shearing force of the adhesive layer between a laser eyepiece and an eyepiece lens barrel is not easy to test in the assembling and adjusting process of a laser range finder and provides a process inspection means for the assembly of the laser eyepiece. The laser eyepiece is bonded to the eyepiece lens barrel through DG-3S epoxy resin glue, after the glue is completely cured, the eyepiece lens barrel containing the laser eyepiece is placed on a test support base, a rubber gasket is placed on the laser eyepiece, the laser eyepiece is pressed out of the eyepiece lens barrel through a test pressing rod by means of a mechanical tensile testing machine, the continuous pressure value of the laser eyepiece in the process of being pressed out of the eyepiece lens barrel is measured, and the maximum pressure value in the process is the bonding stress of the DG-3S epoxy resin glue layer.
Description
Technical Field
The invention belongs to a method for testing the shearing force of a glue layer, and relates to a method for testing the shearing force of a DG-3S epoxy resin glue layer applied to the bonding of a laser eyepiece.
Background
The laser ocular of some laser optical systems is adhered to the ocular lens barrel through DG-3S epoxy resin glue, the shearing force of a DG-3S epoxy resin glue layer is an important parameter for assembling and adjusting the laser ocular, and the laser ocular is loosened in the environmental experiment process due to too small adhesive force, so that the performance of the laser optical system is influenced.
The commonly used glue layer shearing force test mode is that mechanical equipment is utilized to perform destructive pulling-up experiments on a glue layer between a metal piece and a metal piece, and because the metal piece has high strength, the metal piece cannot be broken in the measurement process, and the shearing force is easy to measure. And the test of the shearing force of the adhesive layer between the laser eyepiece and the eyepiece lens barrel needs to perform destructive pulling-up test on the adhesive layer between the metal piece and the optical piece, the laser eyepiece belongs to the optical piece, special optical coating is performed, the hardness of the optical piece is small, and in the mechanical pulling-up test process, the failure of the film layer of the laser eyepiece and the fragmentation of a lens can be caused, so that the test of the shearing force of the adhesive layer between the laser eyepiece and the eyepiece lens barrel cannot be performed.
Disclosure of Invention
Technical problem to be solved
In order to avoid the defects of the prior art, the invention provides a method for testing the shearing force of a DG-3S epoxy resin adhesive layer, which avoids the failure of a laser eyepiece film layer and the fragmentation of a lens and can accurately measure the shearing force of the DG-3S epoxy resin adhesive layer between the laser eyepiece and a lens barrel. The problem of the difficult test of glue film stress shearing force between laser eyepiece and the eyepiece lens cone is solved, a process inspection means is provided for the assembly of laser eyepiece.
Technical scheme
A DG-3S epoxy resin adhesive layer shearing force testing method is characterized by comprising the following steps:
step 1: firstly, a DG-3S epoxy resin adhesive is adopted to adhere a laser eyepiece 4 into a groove in the center of an eyepiece lens barrel 3, the number of adhering points is 3 or 4, the adhesive layers of the adhering points cannot be connected, and standing is carried out for 48 hours until the adhesive is fully cured; the center of the eyepiece lens barrel 3 is a step through hole, the diameter of a groove at the lower end is larger than that of a through hole at the upper part, the diameter of the groove is matched with that of the laser eyepiece 4, and the diameter of the through hole at the upper part is matched with that of the test pressing rod 2;
step 2: placing a test support base 1 on an operation table of a mechanical tensile testing machine, then placing an eyepiece lens barrel bonded with a laser eyepiece on the test support base, and placing a rubber gasket 5 on the laser eyepiece; the center of the test supporting base 1 is provided with a through hole, the diameter of the through hole is larger than that of the laser eyepiece 4, the upper part of the through hole is of a groove structure, and the diameter of the groove is matched with that of the eyepiece lens barrel 3;
and step 3: the testing pressing rod 2 is placed on a mechanical tensile testing machine, and the testing pressing rod 2 is pressed into a through hole in the upper center of the eyepiece lens barrel 3; and starting the mechanical tensile testing machine, applying pressure to the testing pressing rod 2 by the mechanical tensile testing machine until the laser ocular 3 is pressed out of the ocular lens barrel 4, and recording the pressure in the pressure testing process of the mechanical tensile testing machine, wherein the maximum value of the pressure is the bonding stress of the DG-3S epoxy resin adhesive.
Advantageous effects
The invention provides a method for testing the shearing force of a DG-3S epoxy resin adhesive layer, which mainly solves the problem that the shearing force of the adhesive layer between a laser eyepiece and an eyepiece lens barrel is not easy to test in the assembling and adjusting process of a laser range finder and provides a process inspection means for the assembly of the laser eyepiece. The laser eyepiece is bonded to the eyepiece lens barrel through DG-3S epoxy resin glue, after the glue is completely cured, the eyepiece lens barrel containing the laser eyepiece is placed on a test support base, a rubber gasket is placed on the laser eyepiece, the laser eyepiece is pressed out of the eyepiece lens barrel through a test pressing rod by means of a mechanical tensile testing machine, the continuous pressure value of the laser eyepiece in the process of being pressed out of the eyepiece lens barrel is measured, and the maximum pressure value in the process is the bonding stress of the DG-3S epoxy resin glue layer.
The invention has the advantages that: the method overcomes the difficulty that the stress of the laser eyepiece bonded by DG-3S epoxy resin adhesive is difficult to accurately test after the adhesive layer is cured, and has strong operability, simple test process and accurate test data. The method is characterized in that a rubber gasket is arranged between the laser eyepiece and the test pressing rod, the laser eyepiece and the test pressing plate cannot be in direct contact, the laser eyepiece is prevented from being cracked due to too large stress, and the continuity and feasibility of stress testing are ensured.
Drawings
FIG. 1 is a schematic diagram of a DG-3S epoxy resin adhesive bonding stress test
Wherein: 1-testing a supporting base, 2-testing a pressing rod, 3-an eyepiece lens barrel, 4-a laser eyepiece and 5-a rubber gasket.
Detailed Description
The invention will now be further described with reference to the following examples and drawings:
please refer to fig. 1, which is a schematic diagram of a DG-3S epoxy adhesive bonding stress test.
The center of the eyepiece lens barrel 3 is a step through hole, the diameter of a groove at the lower end is larger than that of a through hole at the upper part, the diameter of the groove is matched with that of the laser eyepiece 4, and the diameter of the through hole at the upper part is matched with that of the test pressing rod 2; the center of the test supporting base 1 is provided with a through hole, the diameter of the through hole is larger than that of the laser eyepiece 4, the upper part of the through hole is of a groove structure, and the diameter of the groove is matched with that of the eyepiece lens barrel 3;
in the embodiment, firstly, the laser eyepiece 3 is adhered into the eyepiece lens barrel 4 by DG-3S epoxy resin adhesive, the number of the adhered points is 3 or 4, the adhesive layers of the adhered points cannot be connected, and the laser eyepiece lens barrel is kept still for 48 hours until the adhesive is fully cured.
Then placing the test support base 1 on an operation table of a mechanical tensile testing machine, placing the eyepiece lens barrel containing the laser eyepiece on the test support base, and placing a rubber gasket 5 on the laser eyepiece;
then the testing pressing rod 2 is placed on a mechanical tensile testing machine, and the testing pressing rod 2 is pressed into a through hole in the upper center of the eyepiece lens barrel 3; and starting the mechanical tensile testing machine, applying pressure to the testing pressing rod 2 by the mechanical tensile testing machine until the laser ocular 3 is pressed out of the ocular lens barrel 4, and recording the pressure in the pressure testing process of the mechanical tensile testing machine, wherein the maximum value of the pressure is the bonding stress of the DG-3S epoxy resin adhesive.
Claims (1)
1. A DG-3S epoxy resin adhesive layer shearing force testing method is characterized by comprising the following steps:
step 1: firstly, a DG-3S epoxy resin adhesive is adopted to adhere a laser eyepiece (4) into a groove in the center of an eyepiece lens barrel (3), the number of adhering points is 3 or 4, the adhesive layers of the adhering points cannot be connected, and standing is carried out for 48 hours until the adhesive is fully cured; the center of the eyepiece lens barrel (3) is a step through hole, the diameter of a groove at the lower end is larger than that of a through hole at the upper part, the diameter of the groove is matched with that of the laser eyepiece (4), and the diameter of the through hole at the upper part is matched with that of the test pressing rod (2);
step 2: placing a test support base (1) on an operation table of a mechanical tensile testing machine, then placing an eyepiece lens barrel bonded with a laser eyepiece on the test support base, and placing a rubber gasket (5) on the laser eyepiece; a through hole is formed in the center of the test supporting base (1), the diameter of the through hole is larger than that of the laser eyepiece (4), the upper portion of the through hole is of a groove structure, and the diameter of the groove is matched with that of the eyepiece lens barrel (3);
and step 3: the testing pressing rod (2) is placed on a mechanical tensile testing machine, and the testing pressing rod (2) is pressed into a through hole in the upper center of the eyepiece lens barrel (3); and starting the mechanical tensile testing machine, applying pressure to the testing pressing rod (2) by the mechanical tensile testing machine until the laser eyepiece (3) is pressed out of the eyepiece lens barrel (4), and recording the pressure in the pressure testing process of the mechanical tensile testing machine, wherein the maximum value of the pressure is the bonding stress of the DG-3S epoxy resin adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063637.4A CN110926964A (en) | 2019-11-04 | 2019-11-04 | Method for testing shearing force of DG-3S epoxy resin adhesive layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911063637.4A CN110926964A (en) | 2019-11-04 | 2019-11-04 | Method for testing shearing force of DG-3S epoxy resin adhesive layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110926964A true CN110926964A (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911063637.4A Pending CN110926964A (en) | 2019-11-04 | 2019-11-04 | Method for testing shearing force of DG-3S epoxy resin adhesive layer |
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| CN (1) | CN110926964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116496735A (en) * | 2023-02-22 | 2023-07-28 | 陕西宝成航空仪表有限责任公司 | A kind of potting glue for conductive slip ring with anti-cracking and low shrinkage rate and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6459065A (en) * | 1987-08-31 | 1989-03-06 | Mitsubishi Heavy Ind Ltd | Measuring method for strength and contactness of plated film |
| US5176028A (en) * | 1990-10-01 | 1993-01-05 | The State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University | Device for testing adhesive bonds |
| JP2005313798A (en) * | 2004-04-30 | 2005-11-10 | Nsk Ltd | Body seal structure of steering device |
| CN204556480U (en) * | 2015-04-21 | 2015-08-12 | 中国工程物理研究院材料研究所 | A kind of test unit of testing coating test specimen bond strength |
| CN105136658A (en) * | 2015-08-05 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Rubber vulcanization pipe adhesion detection apparatus |
| CN107843553A (en) * | 2017-10-12 | 2018-03-27 | 中国矿业大学 | A kind of coal body and Anchor Agent interface binding intensity method of testing |
| CN108535182A (en) * | 2018-05-24 | 2018-09-14 | Oppo广东移动通信有限公司 | Dispensing test fixture and its test method |
-
2019
- 2019-11-04 CN CN201911063637.4A patent/CN110926964A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6459065A (en) * | 1987-08-31 | 1989-03-06 | Mitsubishi Heavy Ind Ltd | Measuring method for strength and contactness of plated film |
| US5176028A (en) * | 1990-10-01 | 1993-01-05 | The State Of Oregon Acting By And Through The Oregon State Board Of Higher Education On Behalf Of Oregon State University | Device for testing adhesive bonds |
| JP2005313798A (en) * | 2004-04-30 | 2005-11-10 | Nsk Ltd | Body seal structure of steering device |
| CN204556480U (en) * | 2015-04-21 | 2015-08-12 | 中国工程物理研究院材料研究所 | A kind of test unit of testing coating test specimen bond strength |
| CN105136658A (en) * | 2015-08-05 | 2015-12-09 | 安徽江淮汽车股份有限公司 | Rubber vulcanization pipe adhesion detection apparatus |
| CN107843553A (en) * | 2017-10-12 | 2018-03-27 | 中国矿业大学 | A kind of coal body and Anchor Agent interface binding intensity method of testing |
| CN108535182A (en) * | 2018-05-24 | 2018-09-14 | Oppo广东移动通信有限公司 | Dispensing test fixture and its test method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116496735A (en) * | 2023-02-22 | 2023-07-28 | 陕西宝成航空仪表有限责任公司 | A kind of potting glue for conductive slip ring with anti-cracking and low shrinkage rate and preparation method thereof |
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Application publication date: 20200327 |
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