CN107782882A - The method of inspection of pin hole inside a kind of composite coating - Google Patents
The method of inspection of pin hole inside a kind of composite coating Download PDFInfo
- Publication number
- CN107782882A CN107782882A CN201710940365.6A CN201710940365A CN107782882A CN 107782882 A CN107782882 A CN 107782882A CN 201710940365 A CN201710940365 A CN 201710940365A CN 107782882 A CN107782882 A CN 107782882A
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- China
- Prior art keywords
- composite coating
- pin hole
- coating
- inspection
- brassboard
- Prior art date
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- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 63
- 239000011248 coating agent Substances 0.000 title claims abstract description 55
- 239000002131 composite material Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000007689 inspection Methods 0.000 title claims abstract description 20
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 238000007654 immersion Methods 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000003973 paint Substances 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000011527 polyurethane coating Substances 0.000 claims description 6
- 229920006334 epoxy coating Polymers 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 2
- 238000001962 electrophoresis Methods 0.000 claims 1
- 238000002791 soaking Methods 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 abstract 2
- 238000009835 boiling Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Ceramic Engineering (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of method of inspection of pin hole inside composite coating, comprise the following steps：S1 the brassboard of composite coating first) is subjected to bound edge processing；S2) and then the brassboard of composite coating is immersed into petrolic solvent to be soaked；S3) in immersion process, if bubble from top layer emerges out, then judge pin hole be present inside composite coating.The method of inspection of pin hole inside composite coating provided by the invention, fast and effeciently judge whether coat inside has pin hole by way of solvent soaking, so as to greatly improve efficiency of the coating research and development engineer in early stage product formula R＆D process, satisfactory coating products are quickly filtered out.
Description
Technical field
The present invention relates to a kind of a kind of inspection of pin hole inside composite coating quality inspection method, more particularly to composite coating
Method.
Background technology
In modern coatings industry, the quality of film dry film directly reflects the quality of coating quality, and coating is in work progress
In generally have many paint film defects, such as a shrinkage cavity, flake, cracking, sagging, bubble pin hole etc., some defects obviously may be used
With the naked eye to judge, it can not be difficult with the naked eye to be identified in other words to also have quite a few defect.Such as bubble pin hole, substantially
On can not possibly be by being visually identified, this requires to need the analytical equipment of specialty and instrument is detected, and among these
Many methods have they itself the defects of, equipment cost, the problems such as time cost etc..Therefore, it is necessary to provide a kind of quick high
The detection means of effect differentiates whether film is defective.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of method of inspection of pin hole inside composite coating, can be quick
Effectively judge whether coat inside has pin hole, greatly improve the screening efficiency of qualified coating products, quickly filter out and conform to
The coating products asked.
The present invention is to provide pin hole inside a kind of composite coating to solve the technical scheme that above-mentioned technical problem uses
The method of inspection, comprise the following steps：S1 the brassboard of composite coating first) is subjected to bound edge processing；S2) and then by composite coating
Brassboard immerses petrolic solvent and soaked；S3) in immersion process, if bubble from top layer emerges out, then judge compound
Pin hole be present in coat inside.
The method of inspection of pin hole inside above-mentioned composite coating, wherein, the composite coating include prime coat, floating coat and
Finish paint figure layer；The step S2) in the 2/3 of the brassboard of composite coating is immersed in petrolic solvent, soak time is 25~35
Minute.
The method of inspection of pin hole inside above-mentioned composite coating, wherein, the step S2) in composite coating brassboard
Soak time is 30 minutes.
The method of inspection of pin hole inside above-mentioned composite coating, wherein, the step S2) in be mixed with stone in petrolic solvent
Oil solvent oil and ethyl acetate, the mass percent of each component are as follows：No. 92 gasoline 70%, No. 150 solvent naphthas 15%, No. 100
Solvent naphtha 10%, ethyl acetate 5%.
The method of inspection of pin hole inside above-mentioned composite coating, wherein, the prime coat is electrophoretic coating, thickness 18-
22um；The floating coat is polyurethane coating, acrylic acid coatings or epoxy coating, thickness 25-35um；The top coat layer is poly-
Urethane coating or acrylic acid coatings, thickness 20-30um.
Present invention contrast prior art has following beneficial effect：The inspection of pin hole inside composite coating provided by the invention
Method, fast and effeciently judge whether coat inside has pin hole by way of solvent soaking, so as to greatly improve coating
Efficiency of the engineer in early stage product formula R＆D process is researched and developed, quickly filters out satisfactory coating products.
Brief description of the drawings
Fig. 1 is the inspection process schematic diagram of pin hole inside composite coating of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
General complete coating system includes prime coat, floating coat and finish paint figure layer, and the prime coat is electrophoretic coating, film
Thickness is 18-22um；The floating coat is polyurethane coating, acrylic acid coatings or epoxy coating, thickness 25-35um；The face
Enamelled coating is polyurethane coating or acrylic acid coatings, thickness 20-30um.When outermost surface seems smooth, then can not often lead to
Whether cross naked eyes and quickly observe inside figure layer has pin hole (for example sometimes floating coat has pin hole, and finish paint figure layer does not have pin
The such case in hole).In order to remove finish paint figure layer, method that the present invention selects boiling water boiling first, with boiling water boiling 2 hours, if
There is bubble to emerge out from top layer, then judge pin hole be present inside composite coating.But the method for boiling water boiling compares the consuming time,
And waste the energy.
Then the present invention is considered as organic solvent and removes finish paint figure layer, but often dissolved destruction is whole for organic solvent
Coating system, it is therefore desirable to prepare a kind of dedicated solvent.Refer to Fig. 1, the inspection of composite coating inside provided by the invention pin hole
Proved recipe method, comprises the following steps：
S1 the brassboard of composite coating first) is subjected to bound edge processing.
S2) and then the brassboard of composite coating is immersed into petrolic solvent to be soaked；It is molten that oil is mixed with petrolic solvent
Agent oil and ethyl acetate, the mass percent of each component are as follows：No. 92 gasoline 70%, No. 150 solvent naphthas 15%, No. 100 solvents
Oil 10%, ethyl acetate 5%.
S3) in immersion process, if bubble from top layer emerges out, then judge pin hole be present inside composite coating.Leaching
Preferably the 2/3 of the brassboard of composite coating is immersed in petrolic solvent during bubble, so as to the experiment to invading the front and rear composite coating of bubble
Plate is compared；Soak time is 25~35 minutes, preferably 30 minutes.After immersion about 30 minutes, visually observe, if internal
When coating has pin hole and covered by topcoat, by immersion, bubble can emerge out from top layer, and directly available naked eyes are distinguished
Know.Experiment finishes taking-up test plate (panel), the pin hole that surface can not visually identify, then illustrates coat inside also without pin hole (including middle painting
And priming paint), the compactness of coating is relatively good.
The present invention can fast and effectively filter out some undesirable products, greatly improve operating efficiency；Reduce real
The time spent in testing the experiment and analysis of room tester, it is not necessary to quick succinct effective using analytical instrument.
Although the present invention is disclosed as above with preferred embodiment, so it is not limited to the present invention, any this area skill
Art personnel, without departing from the spirit and scope of the present invention, when a little modification and perfect, therefore the protection model of the present invention can be made
Enclose to work as and be defined by what claims were defined.
Claims (5)
1. the method for inspection of pin hole inside a kind of composite coating, it is characterised in that comprise the following steps：
S1 the brassboard of composite coating first) is subjected to bound edge processing；
S2) and then the brassboard of composite coating is immersed into petrolic solvent to be soaked；
S3) in immersion process, if bubble from top layer emerges out, then judge pin hole be present inside composite coating.
2. the method for inspection of pin hole inside composite coating as claimed in claim 1, it is characterised in that the composite coating includes
Prime coat, floating coat and finish paint figure layer；The step S2) in the 2/3 of the brassboard of composite coating is immersed in petrolic solvent, leaching
It is 25~35 minutes to steep the time.
3. the method for inspection of pin hole inside composite coating as claimed in claim 2, it is characterised in that the step S2) in it is multiple
The soak time for closing the brassboard of coating is 30 minutes.
4. the method for inspection of pin hole inside composite coating as claimed in claim 1, it is characterised in that the step S2) in vapour
White spirit and ethyl acetate are mixed with oil solvent, the mass percent of each component is as follows：No. 92 gasoline 70%, No. 150
Solvent naphtha 15%, No. 100 solvent naphthas 10%, ethyl acetate 5%.
5. the method for inspection of pin hole inside composite coating as claimed in claim 1, it is characterised in that the prime coat is electrophoresis
Coating, thickness 18-22um；The floating coat is polyurethane coating, acrylic acid coatings or epoxy coating, thickness 25-35um；
The top coat layer is polyurethane coating or acrylic acid coatings, thickness 20-30um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710940365.6A CN107782882A (en) | 2017-10-11 | 2017-10-11 | The method of inspection of pin hole inside a kind of composite coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710940365.6A CN107782882A (en) | 2017-10-11 | 2017-10-11 | The method of inspection of pin hole inside a kind of composite coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107782882A true CN107782882A (en) | 2018-03-09 |
Family
ID=61434366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710940365.6A Pending CN107782882A (en) | 2017-10-11 | 2017-10-11 | The method of inspection of pin hole inside a kind of composite coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107782882A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01276064A (en) * | 1988-04-27 | 1989-11-06 | Eagle Ind Co Ltd | Detecting device for pin hole of plating |
| US5963040A (en) * | 1997-09-24 | 1999-10-05 | Taiwan Semiconductor Manufacturing Co. Ltd. | Method and apparatus for detecting pin-holes in a passivation layer |
| CN201852681U (en) * | 2010-11-18 | 2011-06-01 | 沈阳维用精密机械有限公司 | Bubble leakage detection device |
| CN103364381A (en) * | 2007-12-17 | 2013-10-23 | 生命技术公司 | Methods for detecting defects in inorganic-coated polymer surfaces |
| CN103454297A (en) * | 2013-09-02 | 2013-12-18 | 武汉钢铁(集团)公司 | Method for identifying steel plate coating defect caused by coating liquid bubbles |
| CN103558338A (en) * | 2013-10-12 | 2014-02-05 | 奇瑞汽车股份有限公司 | Method for detecting pollutant causing contraction cavity on automobile finish |
| CN103630543A (en) * | 2013-10-23 | 2014-03-12 | 航天材料及工艺研究所 | Judgment method for detecting defects of wave absorption coating by using pulse infrared thermal waves |
| CN104387816A (en) * | 2014-11-28 | 2015-03-04 | 佛山市南海万磊建筑涂料有限公司 | Multifunctional inorganic diatom ooze coating and preparation method thereof |
| CN105277319A (en) * | 2015-11-30 | 2016-01-27 | 四川南格尔生物科技有限公司 | Seal head leakage detection device and method |
| CN105628865A (en) * | 2014-11-07 | 2016-06-01 | 立邦涂料（中国）有限公司 | Method for detecting hidden coating pit in composite coating |
-
2017
- 2017-10-11 CN CN201710940365.6A patent/CN107782882A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01276064A (en) * | 1988-04-27 | 1989-11-06 | Eagle Ind Co Ltd | Detecting device for pin hole of plating |
| US5963040A (en) * | 1997-09-24 | 1999-10-05 | Taiwan Semiconductor Manufacturing Co. Ltd. | Method and apparatus for detecting pin-holes in a passivation layer |
| CN103364381A (en) * | 2007-12-17 | 2013-10-23 | 生命技术公司 | Methods for detecting defects in inorganic-coated polymer surfaces |
| CN201852681U (en) * | 2010-11-18 | 2011-06-01 | 沈阳维用精密机械有限公司 | Bubble leakage detection device |
| CN103454297A (en) * | 2013-09-02 | 2013-12-18 | 武汉钢铁(集团)公司 | Method for identifying steel plate coating defect caused by coating liquid bubbles |
| CN103558338A (en) * | 2013-10-12 | 2014-02-05 | 奇瑞汽车股份有限公司 | Method for detecting pollutant causing contraction cavity on automobile finish |
| CN103630543A (en) * | 2013-10-23 | 2014-03-12 | 航天材料及工艺研究所 | Judgment method for detecting defects of wave absorption coating by using pulse infrared thermal waves |
| CN105628865A (en) * | 2014-11-07 | 2016-06-01 | 立邦涂料（中国）有限公司 | Method for detecting hidden coating pit in composite coating |
| CN104387816A (en) * | 2014-11-28 | 2015-03-04 | 佛山市南海万磊建筑涂料有限公司 | Multifunctional inorganic diatom ooze coating and preparation method thereof |
| CN105277319A (en) * | 2015-11-30 | 2016-01-27 | 四川南格尔生物科技有限公司 | Seal head leakage detection device and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |